Edgar Filing: FIRST INTERSTATE BANCSYSTEM INC

10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

________________________________________________________________________________________________________

FORM 10-Q

________________________________________________________________________________________________________


ý	Quarterly report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2015


¨	Transition report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from to

COMMISSION FILE NUMBER 001-34653

________________________________________________________________________________________________________

First Interstate BancSystem, Inc.

(Exact name of registrant as specified in its charter)

________________________________________________________________________________________________________



Montana		81-0331430
(State or other jurisdiction of incorporation or organization)		(IRS Employer Identification No.)

401 North 31st Street, Billings, MT		59116-0918
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: 406/255-5390

______________________________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files.) Yes ý No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.



Large accelerated filer	¨	Accelerated filer	ý

Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No ý

Indicate the number of shares outstanding of each of the Registrant’s classes of common stock:



	September 30, 2015 – Class A common stock		21,583,324
	September 30, 2015 – Class B common stock		23,761,683

FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES Quarterly Report on Form 10-Q Index

		Page
Part I.	Financial Information

Item 1.	Financial Statements (unaudited)

	Consolidated Balance Sheets - September 30, 2015 and December 31, 2014	3

	Consolidated Statements of Income - Three and Nine Months Ended September 30, 2015 and 2014	4

	Consolidated Statements of Comprehensive Income - Three and Nine Months Ended September 30, 2015 and 2014	5

	Consolidated Statements of Changes in Stockholders’ Equity - Nine Months Ended September 30, 2015 and 2014	6

	Consolidated Statements of Cash Flows - Nine Months Ended September 30, 2015 and 2014	7

	Notes to Unaudited Consolidated Financial Statements	9

Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	37

Item 3.	Quantitative and Qualitative Disclosures about Market Risk	53

Item 4.	Controls and Procedures	53

Part II.	Other Information

Item 1.	Legal Proceedings	53

Item 1A .	Risk Factors	54

Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	54

Item 3.	Defaults Upon Senior Securities	54

Item 4.	Mine Safety Disclosures	54

Item 5.	Other Information	54

Item 6.	Exhibits	54

Signatures		56

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In thousands, except share data) (Unaudited)

	September 30, 2015		December 31, 2014
Assets
Cash and due from banks	$	139,879	$	147,894
Federal funds sold	2,263		543
Interest bearing deposits in banks	566,153		650,233
Total cash and cash equivalents	708,295		798,670
Investment securities:
Available-for-sale	1,545,093		1,711,924
Held-to-maturity (estimated fair values of $534,633 and $584,533 at September 30, 2015 and December 31, 2014, respectively)	522,543		575,186
Total investment securities	2,067,636		2,287,110
Loans held for investment	5,120,794		4,856,615
Mortgage loans held for sale	55,686		40,828
Total loans	5,176,480		4,897,443
Less allowance for loan losses	74,256		74,200
Net loans	5,102,224		4,823,243
Goodwill	204,409		205,574
Premises and equipment, net of accumulated depreciation	190,386		195,212
Company-owned life insurance	185,990		153,821
Other real estate owned (“OREO”)	8,031		13,554
Accrued interest receivable	31,590		27,063
Core deposit intangibles, net of accumulated amortization	11,425		13,282
Mortgage servicing rights, net of accumulated amortization and impairment reserve	15,336		14,038
Deferred tax asset, net	—		4,874
Other assets	79,208		73,495
Total assets	$	8,604,530	$	8,609,936
Liabilities and Stockholders’ Equity
Deposits:
Non-interest bearing	$	1,832,535	$	1,791,364
Interest bearing	5,203,259		5,214,848
Total deposits	7,035,794		7,006,212
Securities sold under repurchase agreements	437,533		502,250
Accounts payable and accrued expenses	48,698		66,164
Accrued interest payable	5,327		5,833
Deferred tax liability	13,027		—
Long-term debt	43,089		38,067
Other borrowed funds	10		9
Subordinated debentures held by subsidiary trusts	82,477		82,477
Total liabilities	7,665,955		7,701,012
Stockholders’ equity:
Nonvoting noncumulative preferred stock without par value; authorized 100,000 shares; no shares issued and outstanding as of September 30, 2015 or December 31, 2014	—		—
Common stock	309,167		323,596
Retained earnings	623,967		587,862
Accumulated other comprehensive income (loss), net	5,441		(2,534		)
Total stockholders’ equity	938,575		908,924
Total liabilities and stockholders’ equity	$	8,604,530	$	8,609,936

See accompanying notes to unaudited consolidated financial statements.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (In thousands, except per share data) (Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Interest income:
Interest and fees on loans	$	62,062		$	61,007		$	181,835		$	170,290
Interest and dividends on investment securities:
Taxable	7,410			7,259			23,381			22,208
Exempt from federal taxes	962			1,085			3,061			3,265
Interest on deposits in banks	342			374			1,002			830
Interest on federal funds sold	4			3			11			7
Total interest income	70,780			69,728			209,290			196,600
Interest expense:
Interest on deposits	3,241			3,487			9,789			10,238
Interest on securities sold under repurchase agreements	55			52			162			181
Interest on other borrowed funds	—			27			—			27
Interest on long-term debt	544			482			1,596			1,431
Interest on subordinated debentures held by subsidiary trusts	610			598			1,800			1,778
Total interest expense	4,450			4,646			13,347			13,655
Net interest income	66,330			65,082			195,943			182,945
Provision for loan losses	1,098			261			3,533			(6,740		)
Net interest income after provision for loan losses	65,232			64,821			192,410			189,685
Non-interest income:
Other service charges, commissions and fees	11,095			10,458			32,135			29,313
Income from the origination and sale of loans	7,983			7,346			22,691			18,386
Wealth management revenues	5,233			5,157			15,067			14,221
Service charges on deposit accounts	4,379			4,331			12,376			12,135
Investment securities gains (losses), net	23			(8		)	75			80
Other income	1,769			2,079			7,690			5,905
Total non-interest income	30,482			29,363			90,034			80,040
Non-interest expense:
Salaries and wages	25,460			25,914			76,902			72,796
Employee benefits	7,312			7,841			23,162			23,318
Occupancy, net	4,413			4,534			13,434			13,026
Furniture and equipment	3,849			3,338			11,345			9,696
Outsourced technology services	2,520			2,346			7,576			6,955
OREO expense, net of income	(720		)	(58		)	(1,604		)	(211		)
Professional fees	1,916			1,233			4,731			3,881
FDIC insurance premiums	1,190			1,172			3,636			3,381
Mortgage servicing rights amortization	617			591			1,863			1,774
Mortgage servicing rights impairment recovery	(76		)	(61		)	(147		)	(117		)
Core deposit intangibles amortization	842			688			2,551			1,396
Other expenses	12,613			12,368			37,994			33,672
Loss contingency expenses	5,000			4,000			5,000			4,000
Acquisition expenses	566			1,052			629			1,649
Total non-interest expense	65,502			64,958			187,072			175,216
Income before income tax expense	30,212			29,226			95,372			94,509
Income tax expense	10,050			10,071			32,008			32,884
Net income	$	20,162		$	19,155		$	63,364		$	61,625

Basic earnings per common share	$	0.45		$	0.43		$	1.40		$	1.39
Diluted earnings per common share	$	0.44		$	0.42		$	1.39		$	1.37

See accompanying notes to unaudited consolidated financial statements.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (In thousands) (Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Net income	$	20,162		$	19,155		$	63,364		$	61,625
Other comprehensive income, before tax:
Investment securities available-for sale:
Change in net unrealized gains (losses) during period	10,855			(3,773		)	12,264			12,942
Reclassification adjustment for net (gains) losses included in income	(23		)	8			(75		)	(80		)
Change in unamortized loss on available-for-sale securities transferred into held-to-maturity	448			451			1,353			902
Unrealized loss on derivatives	(436		)	—			(436		)	—
Defined benefit post-retirement benefits plans:
Change in net actuarial loss	15			33			43			103
Other comprehensive income (loss), before tax	10,859			(3,281		)	13,149			13,867
Deferred tax benefit (expense) related to other comprehensive income	(4,273		)	1,291			(5,174		)	(5,456		)
Other comprehensive income (loss), net of tax	6,586			(1,990		)	7,975			8,411
Comprehensive income, net of tax	$	26,748		$	17,165		$	71,339		$	70,036

See accompanying notes to unaudited consolidated financial statements.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (In thousands, except share and per share data) (Unaudited)

	Common stock			Retained earnings			Accumulated other comprehensive income (loss)			Total stockholders’ equity
Balance at December 31, 2014	$	323,596		$	587,862		$	(2,534	)	$	908,924
Net income	—			63,364			—			63,364
Other comprehensive income, net of tax expense	—			—			7,975			7,975
Common stock transactions:
789,743 common shares purchased and retired	(20,548		)	—			—			(20,548		)
21,414 common shares issued	—			—			—			—
169,577 non-vested common shares issued	—			—			—			—
3,484 non-vested common shares forfeited	—			—			—			—
158,828 stock options exercised, net of 58,996 shares tendered in payment of option price and income tax withholding amounts	1,909			—			—			1,909
Tax benefit of stock-based compensation	979			—			—			979
Stock-based compensation expense	3,231			—			—			3,231
Common cash dividend declared ($0.60 per share)	—			(27,259		)	—			(27,259		)
Balance at September 30, 2015	$	309,167		$	623,967		$	5,441		$	938,575

Balance at December 31, 2013	$	285,535		$	532,087		$	(16,041	)	$	801,581
Net income	—			61,625			—			61,625
Other comprehensive income, net of tax expense	—			—			8,411			8,411
Common stock transactions:
387,967 common shares purchased and retired	(9,736		)	—			—			(9,736		)
1,402,811 common shares issued	35,972			—			—			35,972
147,876 non-vested common shares issued	—			—			—			—
17,741 non-vested common shares forfeited	—			—			—			—
372,880 stock options exercised, net of 166,780 shares tendered in payment of option price and income tax withholding amounts	4,914			—			—			4,914
Tax benefit of stock-based compensation	1,541			—			—			1,541
Stock-based compensation expense	2,906			—			—			2,906
Common cash dividend declared ($0.48 per share)	—			(21,350		)	—			(21,350		)
Balance at September 30, 2014	$	321,132		$	572,362		$	(7,630	)	$	885,864

See accompanying notes to unaudited consolidated financial statements.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) (Unaudited)

	Nine Months Ended September 30,
	2015			2014
Cash flows from operating activities:
Net income	$	63,364		$	61,625
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,533			(6,740		)
Net gain on disposal of premises and equipment	(822		)	(68		)
Depreciation and amortization	13,702			12,168
Net premium amortization on investment securities	11,527			10,784
Net gain on investment securities transactions	(75		)	(80		)
Net gain on sale of mortgage loans held for sale	(16,397		)	(12,947		)
Net gain on sale of OREO	(2,862		)	(551		)
Write-downs of OREO and other assets pending disposal	985			87
Net reversal of impairment of mortgage servicing rights	(147		)	(117		)
Deferred income tax expense	12,975			8,537
Net increase in cash surrender value of company-owned life insurance	(9,669		)	(2,540		)
Stock-based compensation expense	3,231			2,906
Tax benefits from stock-based compensation expense	979			1,541
Excess tax benefits from stock-based compensation expense	(884		)	(1,503		)
Originations of mortgage loans held for sale	(856,384		)	(682,011		)
Proceeds from sales of mortgage loans held for sale	865,833			676,061
Changes in operating assets and liabilities:
Increase in interest receivable	(3,962		)	(2,749		)
Increase in other assets	(4,766		)	(1,585		)
Increase (decrease) in accrued interest payable	(639		)	22
Increase (decrease) in accounts payable and accrued expenses	(17,583		)	1,321
Net cash provided by operating activities	61,939			64,161
Cash flows from investing activities:
Purchases of investment securities:
Held-to-maturity	(28,745		)	(10,431		)
Available-for-sale	(253,049		)	(322,838		)
Proceeds from maturities, pay-downs and sales of investment securities:
Held-to-maturity	80,759			29,432
Available-for-sale	450,462			398,383
Purchases of company-owned life insurance	(22,500		)	(15,000		)
Proceeds from sales of mortgage servicing rights	—			266
Extensions of credit to customers, net of repayments	(251,450		)	(148,854		)
Recoveries of loans charged-off	4,439			7,323
Proceeds from sales of OREO	13,586			5,877
Acquisition of bank and bank holding company, net of cash and cash equivalents received	(1,636		)	35,556
Capital expenditures, net of sales	(2,236		)	(6,599		)
Net cash used in investing activities	$	(10,370	)	$	(26,885	)

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF CASH FLOWS (continued) (In thousands) (Unaudited)

	Nine Months Ended September 30,
	2015			2014
Cash flows from financing activities:
Net increase (decrease) in deposits	$	(33,983	)	$	310,370
Net decrease in securities sold under repurchase agreements	(66,717		)	(25,880		)
Net increase (decrease) in other borrowed funds	1			(11,926		)
Repayments of long-term debt	(1,297		)	(35		)
Advances on long-term debt	5,066			—
Proceeds from issuance of common stock	1,909			4,914
Excess tax benefits from stock-based compensation expense	884			1,503
Purchase and retirement of common stock	(20,548		)	(9,736		)
Dividends paid to common stockholders	(27,259		)	(21,350		)
Net cash provided by (used in) financing activities	(141,944		)	247,860
Net increase (decrease) in cash and cash equivalents	(90,375		)	285,136
Cash and cash equivalents at beginning of period	798,670			534,827
Cash and cash equivalents at end of period	$	708,295		$	819,963

Supplemental disclosures of cash flow information:
Cash paid during the period for income taxes	$	27,335		$	21,100
Cash paid during the period for interest expense	13,853			13,049

See accompanying notes to unaudited consolidated financial statements.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(1)	Basis of Presentation

In the opinion of management, the accompanying unaudited consolidated financial statements of First Interstate BancSystem, Inc. and subsidiaries (the “Company”) contain all adjustments (all of which are of a normal recurring nature) necessary to present fairly the financial position of the Company at September 30, 2015 and December 31, 2014, and the results of operations for each of the three and nine month periods ended and cash flows for each of the nine month periods ended September 30, 2015 and 2014 in conformity with U.S. generally accepted accounting principles. The balance sheet information at December 31, 2014 is derived from audited consolidated financial statements. Certain reclassifications, none of which were material, have been made to conform prior year financial statements to the September 30, 2015 presentation. These reclassifications did not change previously reported net income or stockholders’ equity.

These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. Operating results for the three and nine months ended September 30, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015.


(2)	Acquisitions

Absarokee Bancorporation, Inc. On March 26, 2015, the Company entered into an agreement and plan of merger to acquire all of the outstanding stock of Absarokee Bancorporation, Inc. ("Absarokee"), a Montana-based bank holding company that operated one subsidiary bank, United Bank, with branches located in three Montana communities adjacent to the Company's existing market areas. The acquisition was completed on July 24, 2015 for cash consideration of $7,234. Immediately subsequent to the acquisition, United Bank was merged with and into the Company's existing bank subsidiary, First Interstate Bank ("FIB"). As of the date of the acquisition, Absarokee had total assets of $73,460, loans of $37,520 and deposits of $63,565.

The assets and liabilities of Absarokee were recorded in the Company's consolidated financial statements at their estimated fair values as of the acquisition date. The excess value of the consideration paid over the fair value of assets acquired and liabilities assumed is recorded as goodwill.

The following table summarizes the consideration paid, fair values of the Absarokee assets acquired and liabilities assumed and the resulting goodwill. All amounts reported are provisional pending completion of management review.



	As Recorded			Fair Value				As Recorded
As of July 24, 2015	by Absarokee			Adjustments				by the Company

Assets acquired:
Cash and cash equivalents	$	5,598		$	—			$	5,598
Investment securities	27,574			—				27,574
Loans	37,520			(876		)	(1)	36,644
Allowance for loan losses	(899		)	899			(2)	—
Premises and equipment	2,851			277			(3)	3,128
Core deposit intangible assets	—			695			(4)	695
Other assets	816			82			(5)	898
Total assets acquired	73,460			1,077				74,537
Liabilities assumed:
Deposits	63,565			—				63,565
Repurchase agreements	2,000			—				2,000
Long term debt	1,222			31			(6)	1,253
Other liabilities	79			440			(7)	519
Total liabilities assumed	66,866			471				67,337
Net assets acquired	$	6,594		$	606			7,200
Cash consideration paid								7,234
Goodwill								$	34

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



Explanation of fair value adjustments:
(1)	Write down of the book value of loans to their estimated fair values. The fair value of loans was estimated using cash flow projections based on the remaining maturity and repricing terms, adjusted for estimated future credit losses and prepayments and discounted to present value using a risk-adjusted market rate for similar loans.
(2)	Adjustment to remove the Absarokee allowance for loan losses at acquisition date as the credit risk is accounted for in the fair value adjustment for loans receivable described in (1) above.
(3)	Write up of the book value of premises and equipment to their estimated fair values based upon fair value estimates developed internally based upon comparable in-market transactions.
(4)	Adjustment represents the value of the core deposit base assumed in the acquisition based upon an internal valuation based on analysis of recent acquisitions.
(5)	Adjustment consists of a reduction in the value of accrued interest receivable, the write-off of pre-existing goodwill and recording the value of mortgage servicing assets acquired.
(6)	Adjustment represents increase in the book value of a Federal Home Loan Bank borrowing to its estimated fair market value based upon interest interest rates of similar advances with similar characteristics on the date of acquisition.
(7)	Adjustment represents the net deferred tax liability resulting from fair value adjustments related to acquired assets, assumed liabilities, core deposit intangible assets and other purchase accounting adjustments.

The core deposit intangible asset of $695 is being amortized using an accelerated method over the estimated useful lives of the related deposits of ten years.

Mountain West Financial Corp. On July 31, 2014, the Company acquired all of the outstanding stock of Mountain West Financial Corp ("MWFC"), a Montana-based bank holding company operating one subsidiary bank, Mountain West Bank, NA ("MWB"). MWB was merged with and into FIB in October 2014. During March 2015, the Company completed its review of MWFC tax items and finalized the fair value of acquired deferred tax assets. Finalization of provisional estimates resulted in a $1,199 decrease in goodwill.

The Company recorded third party acquisition-related costs of $566 and $1,052 during the three months ended September 30, 2015 and 2014, respectively. The Company recorded third party acquisition-related costs of $629 and $1,649 during the nine months ended September 30, 2015 and 2014, respectively. These costs are included in acquisition expenses in the Company's consolidated statements of income.


(3)	Investment Securities

The amortized cost and approximate fair values of investment securities are summarized as follows:



September 30, 2015	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-Sale:
U.S. Treasury notes	$	3,913	$	28	$	—		$	3,941
Obligations of U.S. government agencies	604,198		2,196		(350		)	606,044
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	917,025		15,314		(1,284		)	931,055
Private mortgage-backed securities	257		3		(2		)	258
Other investments	3,795		—		—			3,795
Total	$	1,529,188	$	17,541	$	(1,636	)	$	1,545,093

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



September 30, 2015	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Held-to-Maturity:
State, county and municipal securities	$	176,569	$	5,471	$	(200	)	$	181,840
Corporate securities	50,178		186		(49		)	50,315
U.S agency residential mortgage-backed securities & collateralized mortgage obligations	295,418		10,346		(3,665		)	302,099
Other investments	378		1		—			379
Total	$	522,543	$	16,004	$	(3,914	)	$	534,633



December 31, 2014	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-Sale:
Obligations of U.S. government agencies	$	725,408	$	895	$	(5,370	)	$	720,933
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	982,764		11,526		(3,624		)	990,666
Private mortgage-backed securities	322		5		(2		)	325
Total	$	1,708,494	$	12,426	$	(8,996	)	$	1,711,924



December 31, 2014	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Held-to-Maturity:
State, county and municipal securities	$	188,941	$	5,949	$	(386	)	$	194,504
Corporate securities	32,565		54		(75		)	32,544
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	353,176		5,563		(1,758		)	356,981
Other Investments	504		—		—			504
Total	$	575,186	$	11,566	$	(2,219	)	$	584,533

Gross realized gains and losses from the disposition of investment securities are summarized in the following table:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2015		2014			2015		2014
Gross realized gains	$	23	$	—		$	75	$	243
Gross realized losses	—		(8		)	—		(163		)

The following tables show the gross unrealized losses and fair values of investment securities, aggregated by investment category, and the length of time individual investment securities have been in a continuous unrealized loss position, as of September 30, 2015 and December 31, 2014.



	Less than 12 Months					12 Months or More					Total
September 30, 2015	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Available-for-Sale:
Obligations of U.S. government agencies	$	106,516	$	(85	)	$	131,365	$	(265	)	$	237,881	$	(350	)
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	25,664		(106		)	80,116		(1,178		)	105,780		(1,284		)
Private mortgage-backed securities	—		—			71		(2		)	71		(2		)
Total	$	132,180	$	(191	)	$	211,552	$	(1,445	)	$	343,732	$	(1,636	)

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



	Less than 12 Months					12 Months or More					Total
September 30, 2015	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Held-to-Maturity:
State, county and municipal securities	$	6,398	$	(26	)	$	10,493	$	(174	)	$	16,891	$	(200	)
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	14,834		(3,081		)	27,344		(584		)	42,178		(3,665		)
Corporate securities	15,042		(49		)	—		—			15,042		(49		)
Total	$	36,274	$	(3,156	)	$	37,837	$	(758	)	$	74,111	$	(3,914	)



	Less than 12 Months					12 Months or More					Total
December 31, 2014	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Available-for-Sale:
Obligations of U.S. government agencies	$	135,888	$	(702	)	$	309,283	$	(4,668	)	$	445,171	$	(5,370	)
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	219,214		(887		)	151,380		(2,737		)	370,594		(3,624		)
Private mortgage-backed securities	—		—			90		(2		)	90		(2		)
Total	$	355,102	$	(1,589	)	$	460,753	$	(7,407	)	$	815,855	$	(8,996	)



	Less than 12 Months					12 Months or More					Total
December 31, 2014	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Held-to-Maturity:
State, county and municipal securities	$	7,979	$	(13	)	$	20,097	$	(373	)	$	28,076	$	(386	)
U.S. agency residential mortgage-backed securities & collateralized mortgage obligations	61,201		(1,758		)	—		—			61,201		(1,758		)
Corporate securities	14,755		(75		)	—		—			14,755		(75		)
Total	$	83,935	$	(1,846	)	$	20,097	$	(373	)	$	104,032	$	(2,219	)

The investment portfolio is evaluated quarterly for other-than-temporary declines in the market value of each individual investment security. The Company had 113 and 154 individual investment securities that were in an unrealized loss position as of September 30, 2015 and December 31, 2014, respectively. Unrealized losses as of September 30, 2015 and December 31, 2014 related primarily to fluctuations in the current interest rates. The Company does not have the intent to sell any of the available-for-sale securities in the above table and it is not likely that the Company will have to sell any such securities before a recovery in cost. No impairment losses were recorded during the three and nine months ended September 30, 2015 and 2014.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Maturities of investment securities at September 30, 2015 are shown below. Maturities of mortgage-backed securities have been adjusted to reflect shorter maturities based upon estimated prepayments of principal. All other investment securities maturities are shown at contractual maturity dates.



	Available-for-Sale				Held-to-Maturity
September 30, 2015	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Within one year	$	344,473	$	348,859	$	92,096	$	94,244
After one year but within five years	1,119,450		1,130,128		266,554		271,638
After five years but within ten years	56,054		56,755		120,530		123,839
After ten years	9,211		9,351		43,363		44,912
Total	$	1,529,188	$	1,545,093	$	522,543	$	534,633

As of September 30, 2015, the Company had investment securities callable within one year with amortized costs and estimated fair values of $82,568 and $82,773, respectively, including callable structured notes with amortized costs and estimated fair values of $10,000 and $10,000, respectively. These investment securities are primarily classified as available-for-sale and included in the after one year but within five years category in the table above.


(4)	Loans

The following table presents loans by class as of the dates indicated:



	September 30, 2015		December 31, 2014
Real estate loans:
Commercial	$	1,750,797	$	1,639,422
Construction:
Land acquisition & development	212,990		220,443
Residential	112,495		96,580
Commercial	93,775		101,246
Total construction loans	419,260		418,269
Residential	1,020,445		999,903
Agricultural	163,116		167,659
Total real estate loans	3,353,618		3,225,253
Consumer:
Indirect consumer	616,142		552,863
Other consumer	150,170		144,141
Credit card	65,649		65,467
Total consumer loans	831,961		762,471
Commercial	778,648		740,073
Agricultural	154,855		124,859
Other, including overdrafts	1,712		3,959
Loans held for investment	5,120,794		4,856,615
Mortgage loans held for sale	55,686		40,828
Total loans	$	5,176,480	$	4,897,443

Loans from business combinations included in the table above include certain loans that had evidence of deterioration in credit quality since origination and for which it was probable, at acquisition, that all contractually required payments would not be collected.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

The following table displays the outstanding unpaid principal balance, accrued interest receivable and accrual status of loans acquired with credit impairment as of September 30, 2015 and 2014:



As of September 30,	2015		2014

Outstanding balance	$	35,265	$	42,627

Carrying value
Loans on accrual status	22,867		32,350
Loans on non-accrual status	—		—
Total carrying value	$	22,867	$	32,350

The following table summarizes changes in the accretable yield for loans acquired credit impaired for the three and nine months ended September 30, 2015 and 2014:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014

Beginning balance	$	7,482		$	—		$	5,781		$	—
Additions	624			5,233			1,073			5,233
Accretion income	(845		)	(289		)	(2,200		)	(289		)
Reductions due to exit events	(143		)	(16		)	(539		)	(16		)
Reclassifications from nonaccretable differences	347			—			3,350			—
Ending balance	$	7,465		$	4,928		$	7,465		$	4,928

Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. The following tables present the contractual aging of the Company’s recorded investment in past due loans by class as of the dates indicated:



							Total Loans
	30 - 59		60 - 89		> 90		30 or More
	Days		Days		Days		Days		Current		Non-accrual		Total
As of September 30, 2015	Past Due		Past Due		Past Due		Past Due		Loans		Loans		Loans
Real estate
Commercial	$	5,968	$	664	$	398	$	7,030	$	1,720,928	$	22,839	$	1,750,797
Construction:
Land acquisition & development	4,495		6,530		44		11,069		192,819		9,102		212,990
Residential	1,011		134		—		1,145		111,021		329		112,495
Commercial	—		—		—		—		92,792		983		93,775
Total construction loans	5,506		6,664		44		12,214		396,632		10,414		419,260
Residential	5,639		2,355		761		8,755		1,009,119		2,571		1,020,445
Agricultural	881		—		—		881		155,443		6,792		163,116
Total real estate loans	17,994		9,683		1,203		28,880		3,282,122		42,616		3,353,618
Consumer:
Indirect consumer	3,991		683		91		4,765		610,641		736		616,142
Other consumer	1,012		264		25		1,301		148,119		750		150,170
Credit card	402		325		518		1,245		64,391		13		65,649
Total consumer loans	5,405		1,272		634		7,311		823,151		1,499		831,961
Commercial	3,440		717		1,083		5,240		751,769		21,639		778,648
Agricultural	281		—		126		407		153,843		605		154,855
Other, including overdrafts	—		—		311		311		1,401		—		1,712
Loans held for investment	27,120		11,672		3,357		42,149		5,012,286		66,359		5,120,794
Mortgage loans originated for sale	—		—		—		—		55,686		—		55,686
Total loans	$	27,120	$	11,672	$	3,357	$	42,149	$	5,067,972	$	66,359	$	5,176,480

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



							Total Loans
	30 - 59		60 - 89		> 90		30 or More
	Days		Days		Days		Days		Current		Non-accrual		Total
As of December 31, 2014	Past Due		Past Due		Past Due		Past Due		Loans		Loans		Loans
Real estate
Commercial	$	4,692	$	1,609	$	331	$	6,632	$	1,605,421	$	27,369	$	1,639,422
Construction:
Land acquisition & development	839		383		—		1,222		210,969		8,252		220,443
Residential	—		475		—		475		95,833		272		96,580
Commercial	100		—		—		100		98,582		2,564		101,246
Total construction loans	939		858		—		1,797		405,384		11,088		418,269
Residential	6,969		645		1,762		9,376		987,735		2,792		999,903
Agricultural	1,624		236		—		1,860		158,957		6,842		167,659
Total real estate loans	14,224		3,348		2,093		19,665		3,157,497		48,091		3,225,253
Consumer:
Indirect consumer	3,235		482		6		3,723		548,757		383		552,863
Other consumer	988		140		32		1,160		142,432		549		144,141
Credit card	369		284		315		968		64,484		15		65,467
Total consumer loans	4,592		906		353		5,851		755,673		947		762,471
Commercial	3,659		994		147		4,800		722,575		12,698		740,073
Agricultural	1,125		—		—		1,125		123,288		446		124,859
Other, including overdrafts	—		—		—		—		3,959		—		3,959
Loans held for investment	23,600		5,248		2,593		31,441		4,762,992		62,182		4,856,615
Mortgage loans originated for sale	—		—		—		—		40,828		—		40,828
Total loans	$	23,600	$	5,248	$	2,593	$	31,441	$	4,803,820	$	62,182	$	4,897,443

Acquired loans that met the criteria for nonaccrual of interest prior to acquisition were considered performing upon acquisition. If interest on non-accrual loans had been accrued, such income would have been approximately $828 and $992 for the three months ended September 30, 2015 and 2014, respectively, and approximately $2,331 and $3,176 for the nine months ended September 30, 2015 and 2014 respectively.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

The Company considers impaired loans to include all loans, except consumer loans, that are risk rated as doubtful, or have been placed on non-accrual status or renegotiated in troubled debt restructurings. The following tables present information on the Company’s recorded investment in impaired loans as of dates indicated:



As of September 30, 2015	Unpaid Total Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Real estate:
Commercial	$	55,910	$	26,265	$	17,131	$	43,396	$	1,451
Construction:
Land acquisition & development	19,349		9,509		1,212		10,721		254
Residential	1,037		329		—		329		—
Commercial	1,290		369		740		1,109		740
Total construction loans	21,676		10,207		1,952		12,159		994
Residential	3,664		2,186		645		2,831		148
Agricultural	9,043		6,407		2,191		8,598		708
Total real estate loans	90,293		45,065		21,919		66,984		3,301
Commercial	28,653		10,315		13,461		23,776		5,154
Agricultural	2,043		367		1,106		1,473		462
Total	$	120,989	$	55,747	$	36,486	$	92,233	$	8,917



As of December 31, 2014	Unpaid Total Principal Balance		Recorded Investment With No Allowance		Recorded Investment With Allowance		Total Recorded Investment		Related Allowance
Real estate:
Commercial	$	41,603	$	28,143	$	11,246	$	39,389	$	1,608
Construction:
Land acquisition & development	12,511		7,262		1,615		8,877		574
Residential	459		272		—		272		—
Commercial	2,729		253		2,442		2,695		904
Total construction loans	15,699		7,787		4,057		11,844		1,478
Residential	2,959		2,452		341		2,793		143
Agricultural	8,844		6,444		2,305		8,749		732
Total real estate loans	69,105		44,826		17,949		62,775		3,961
Commercial	16,904		11,882		2,644		14,526		1,190
Agricultural	1,231		342		837		1,179		641
Total	$	87,240	$	57,050	$	21,430	$	78,480	$	5,792

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

The following table presents the average recorded investment in and income recognized on impaired loans for the periods indicated:



	Three Months Ended September 30,
	2015				2014
	Average Recorded Investment		Income Recognized		Average Recorded Investment		Income Recognized


Real estate:
Commercial	$	36,075	$	226	$	53,492	$	211
Construction:
Land acquisition & development	9,325		29		11,611		11
Residential	330		—		304		—
Commercial	2,339		4		2,709		2
Total construction loans	11,994		33		14,624		13
Residential	2,607		4		4,773		1
Agricultural	8,578		27		9,031		25
Total real estate loans	59,254		290		81,920		250
Commercial	22,483		2		14,252		14
Agricultural	937		13		906		6
Total	$	82,674	$	305	$	97,078	$	270



	Nine Months Ended September 30,
	2015				2014
	Average Recorded Investment		Income Recognized		Average Recorded Investment		Income Recognized


Real estate:
Commercial	$	38,639	$	587	$	57,743	$	668
Construction:
Land acquisition & development	9,591		51		13,529		33
Residential	300		—		799		—
Commercial	1,902		6		1,520		6
Total construction loans	11,793		57		15,848		39
Residential	2,720		6		5,537		4
Agricultural	8,661		62		10,223		54
Total real estate loans	61,813		712		89,351		765
Commercial	18,175		122		14,001		42
Agricultural	848		26		707		18
Total	$	80,836	$	860	$	104,059	$	825

The amount of interest income recognized by the Company within the period that the loans were impaired was primarily related to loans modified in a troubled debt restructuring that remained on accrual status. Interest payments received on non-accrual impaired loans are applied to principal. Interest income is subsequently recognized only to the extent cash payments are received in excess of principal due. If interest on impaired loans had been accrued, interest income on impaired loans would have been approximately $998 and $1,246 for the three months ended September 30, 2015 and 2014, respectively, and approximately $2,932 and $3,927 for the nine months ended September 30, 2015 and 2014 respectively.

Collateralized impaired loans are generally recorded at the fair value of the underlying collateral using discounted cash flows, independent appraisals and management estimates based upon current market conditions. For loans measured under the present value of cash flows method, the change in present value attributable to the passage of time, if applicable, is recognized in the provision for loan losses and thus no interest income is recognized.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Modifications of performing loans are made in the ordinary course of business and are completed on a case-by-case basis as negotiated with the borrower. Loan modifications typically include interest rate concessions, interest only periods of less than twelve months, short-term payment deferrals and extension of amortization periods to provide payment relief. A loan modification is considered a troubled debt restructuring if the borrower is experiencing financial difficulties and the Company, for economic or legal reasons, grants a concession to the borrower that it would not otherwise consider. Certain troubled debt restructurings are on non-accrual status at the time of restructuring and are typically returned to accrual status after considering the borrower's sustained repayment performance in accordance with the restructuring agreement for a period of at least six months and management is reasonably assured of future performance. If the troubled debt restructuring meets these performance criteria and the interest rate granted at the modification is equal to or greater than the rate that the Company was willing to accept at the time of the restructuring for a new loan with comparable risk, then the loan will return to performing status and the accrual of interest will resume.

The Company had loans renegotiated in troubled debt restructurings of $42,547 as of September 30, 2015, of which $25,845 were included in non-accrual loans and $16,702 were on accrual status. The Company had loans renegotiated in troubled debt restructurings of $44,227 as of December 31, 2014, of which $23,275 were included in non-accrual loans and $20,952 were on accrual status.

The following table presents information on the Company's troubled debt restructurings that occurred during the three and nine months ended September 30, 2015.



	Number of Notes	Type of Concession								Principal Balance at Restructure Date
Three Months Ended September 30, 2015	Number of Notes	Interest only period		Extension of terms or maturity		Interest rate adjustment		Other (1)		Principal Balance at Restructure Date
Residential Construction	1	$	—	$	—	$	—	$	67	$	67
Indirect consumer	2	—		—		—		31		31
Commercial	8	—		8,744		2,959		463		12,166
Total loans restructured during period	11	$	—	$	8,744	$	2,959	$	561	$	12,264
(1) Other includes concessions that reduce or defer payments for a specified period of time and/or do not fit into other designated categories.



	Number of Notes	Type of Concession								Principal Balance at Restructure Date
Nine Months Ended September 30, 2015	Number of Notes	Interest only period		Extension of terms or maturity		Interest rate adjustment		Other		Principal Balance at Restructure Date
Residential Construction	1	$	—	$	—	$	—	$	67	$	67
Indirect Consumer	2	—		—		—		31		31
Commercial	9	—		8,754		2,959		463		12,176
Total loans restructured during period	12	$	—	$	8,754	$	2,959	$	561	$	12,274
(1) Other includes concessions that reduce or defer payments for a specified period of time and/or do not fit into other designated categories.

For troubled debt restructurings that were on non-accrual status or otherwise deemed impaired before the modification, a specific reserve may already be recorded. In periods subsequent to modification, the Company continues to evaluate all troubled debt restructurings for possible impairment and recognizes impairment through the allowance. Additionally these loans continue to work their way through the credit cycle through charge-off, pay-off or foreclosure. Financial effects of modifications of troubled debt restructurings may include principal loan forgiveness or other charge-offs directly related to the restructuring. The Company had no charge-offs directly related to modifying troubled debt restructurings during the three or nine months ended September 30, 2015 or 2014.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

The following table presents information on the Company's troubled debt restructurings during the previous 12 months for which there was a payment default during the periods indicated. The Company considers a payment default to occur on troubled debt restructurings when the loan is 90 days or more past due or was placed on non-accrual status after the modification.



	Three Months Ended September 30, 2015			Nine Months Ended September 30, 2015
	Number of Notes	Balance		Number of Notes	Balance
Commercial Real Estate	—	$	—	1	$	1,745
Commercial	3	264		3	264
Total	3	$	264	4	$	2,009

At September 30, 2015, there were no material commitments to lend additional funds to borrowers whose existing loans have been renegotiated or are classified as non-accrual.

As part of the on-going and continuous monitoring of the credit quality of the Company’s loan portfolio, management tracks internally assigned risk classifications of loans. The Company adheres to a Uniform Classification System developed jointly by the various bank regulatory agencies to internally risk rate loans. The Uniform Classification System defines three broad categories of criticized assets, which the Company uses as credit quality indicators:

Other Assets Especially Mentioned — includes loans that exhibit weaknesses in financial condition, loan structure or documentation, which if not promptly corrected, may lead to the development of abnormal risk elements.

Substandard — includes loans that are inadequately protected by the current sound worth and paying capacity of the borrower. Although the primary source of repayment for a substandard loan is not currently sufficient; collateral or other sources of repayment are sufficient to satisfy the debt. Continuance of a substandard loan is not warranted unless positive steps are taken to improve the worthiness of the credit.

Doubtful — includes loans that exhibit pronounced weaknesses to a point where collection or liquidation in full, on the basis of currently existing facts, conditions and values, is highly questionable and improbable. Doubtful loans are required to be placed on non-accrual status and are assigned specific loss exposure.

Company management undertakes the same process for assigning risk ratings to acquired loans as it does for originated loans. Acquired loans rated as substandard or lower or that were on non-accrual status or designated as troubled debt restructurings at the time of acquisition are deemed to be acquired credit impaired loans accounted for under ASC Topic 310-30, regardless of whether they are classified as performing or non-performing loans.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

The following tables present the Company’s recorded investment in criticized loans by class and credit quality indicator based on the most recent analysis performed as of the dates indicated:



As of September 30, 2015	Other Assets Especially Mentioned		Substandard		Doubtful		Total Criticized Loans
Real estate:
Commercial	$	76,483	$	86,047	$	5,095	$	167,625
Construction:
Land acquisition & development	14,928		16,137		630		31,695
Residential	1,230		2,219		27		3,476
Commercial	—		352		757		1,109
Total construction loans	16,158		18,708		1,414		36,280
Residential	6,016		12,117		645		18,778
Agricultural	8,549		16,095		612		25,256
Total real estate loans	107,206		132,967		7,766		247,939
Consumer:
Indirect consumer	774		1,180		164		2,118
Other consumer	687		928		307		1,922
Credit card	—		—		—		—
Total consumer loans	1,461		2,108		471		4,040
Commercial	43,384		21,213		15,638		80,235
Agricultural	3,106		7,558		672		11,336
Total	$	155,157	$	163,846	$	24,547	$	343,550



As of December 31, 2014	Other Assets Especially Mentioned		Substandard		Doubtful		Total Criticized Loans
Real estate:
Commercial	$	84,533	$	83,448	$	15,246	$	183,227
Construction:
Land acquisition & development	11,826		15,016		2,507		29,349
Residential	2,029		2,666		—		4,695
Commercial	39		253		2,442		2,734
Total construction loans	13,894		17,935		4,949		36,778
Residential	10,473		10,848		1,121		22,442
Agricultural	10,122		12,328		612		23,062
Total real estate loans	119,022		124,559		21,928		265,509
Consumer:
Indirect consumer	916		1,590		121		2,627
Other consumer	553		1,085		432		2,070
Credit card	—		348		1,263		1,611
Total consumer loans	1,469		3,023		1,816		6,308
Commercial	25,766		32,433		10,273		68,472
Agricultural	7,827		3,660		837		12,324
Total	$	154,084	$	163,675	$	34,854	$	352,613

The Company maintains a credit review function, which is independent of the credit approval process, to assess assigned internal risk classifications and monitor compliance with internal lending policies and procedures.

Written action plans with firm target dates for resolution of identified problems are maintained and reviewed on a quarterly basis for all categories of criticized loans.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(5)	Allowance for Loan Losses

The following tables present a summary of changes in the allowance for loan losses by portfolio segment for the periods indicated.



Three Months Ended September 30, 2015	Real Estate			Consumer			Commercial			Agriculture			Other		Total
Allowance for loan losses:
Beginning balance	$	53,935		$	5,828		$	15,797		$	992		$	—	$	76,552
Provision charged to operating expense	(1,149		)	430			2,004			(187		)	—		1,098
Less loans charged-off	(2,219		)	(1,537		)	(791		)	—			—		(4,547		)
Add back recoveries of loans previously charged-off	389			653			111			—			—		1,153
Ending balance	$	50,956		$	5,374		$	17,121		$	805		$	—	$	74,256

Nine Months Ended September 30, 2015	Real Estate			Consumer			Commercial			Agriculture			Other		Total
Allowance for loan losses:
Beginning balance	$	53,884		$	5,035		$	14,307		$	974		$	—	$	74,200
Provision charged to operating expense	(1,718		)	2,201			3,220			(170		)	—		3,533
Less loans charged-off	(3,014		)	(3,675		)	(1,227		)	—			—		(7,916		)
Add back recoveries of loans previously charged-off	1,804			1,813			821			1			—		4,439
Ending balance	$	50,956		$	5,374		$	17,121		$	805		$	—	$	74,256

As of September 30, 2015	Real Estate			Consumer			Commercial			Agriculture			Other		Total
Allowance for loan losses:
Loans individually evaluated for impairment	$	3,301		$	—		$	5,154		$	462		$	—	$	8,917
Loans collectively evaluated for impairment	47,655			5,374			11,967			343			—		65,339
Allowance for loan losses	$	50,956		$	5,374		$	17,121		$	805		$	—	$	74,256

Total loans:
Individually evaluated for impairment	$	67,195		$	—		$	23,565		$	1,473		$	—	$	92,233
Collectively evaluated for impairment	3,342,109			831,961			755,083			153,382			1,712		5,084,247
Total loans	$	3,409,304		$	831,961		$	778,648		$	154,855		$	1,712	$	5,176,480



Three Months Ended September 30, 2014	Real Estate			Consumer			Commercial			Agriculture		Other			Total
Allowance for loan losses:
Beginning balance	$	57,312		$	5,347		$	14,986		$	621	$	—		$	78,266
Provision charged to operating expense	(3,839		)	423			3,598			67		12			261
Less loans charged-off	(147		)	(1,437		)	(4,678		)	—		(12		)	(6,274		)
Add back recoveries of loans previously charged-off	999			495			484			—		—			1,978
Ending balance	$	54,325		$	4,828		$	14,390		$	688	$	—		$	74,231

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



Nine Months Ended September 30, 2014	Real Estate			Consumer			Commercial			Agriculture			Other			Total
Allowance for loan losses:
Beginning balance	$	63,923		$	6,193		$	14,747		$	476		$	—		$	85,339
Provision charged to operating expense	(9,225		)	191			2,032			250			12			(6,740		)
Less loans charged-off	(2,390		)	(3,217		)	(6,008		)	(64		)	(12		)	(11,691		)
Add back recoveries of loans previously charged-off	2,017			1,661			3,619			26			—			7,323
Ending balance	$	54,325		$	4,828		$	14,390		$	688		$	—		$	74,231

As of December 31, 2014	Real Estate			Consumer			Commercial			Agriculture			Other			Total
Allowance for loan losses:
Loans individually evaluated for impairment	$	3,961		$	—		$	1,190		$	641		$	—		$	5,792
Loans collectively evaluated for impairment	49,923			5,035			13,117			333			—			68,408
Allowance for loan losses	$	53,884		$	5,035		$	14,307		$	974		$	—		$	74,200

Total loans:
Individually evaluated for impairment	$	62,775		$	—		$	14,526		$	1,179		$	—		$	78,480
Collectively evaluated for impairment	3,203,306			762,471			725,547			123,680			3,959			4,818,963
Total loans	$	3,266,081		$	762,471		$	740,073		$	124,859		$	3,959		$	4,897,443

The Company performs a quarterly assessment of the adequacy of its allowance for loan losses in accordance with generally accepted accounting principles. The methodology used to assess the adequacy is consistently applied to the Company's loan portfolio and consists of three elements: (1) specific valuation allowances based on probable losses on impaired loans; (2) historical valuation allowances based on loan loss experience for similar loans with similar characteristics and trends; and (3) general valuation allowances determined based on changes in the nature of the loan portfolio, overall portfolio quality, industry concentrations, delinquency trends, general economic conditions and other qualitative risk factors both internal and external to the Company.

Specific allowances are established for loans where management has determined that probability of a loss exists by analyzing the borrower’s ability to repay amounts owed, collateral deficiencies and any relevant qualitative or economic factors impacting the loan. Historical valuation allowances are determined by applying percentage loss factors to the credit exposures from outstanding loans. For commercial, agricultural and real estate loans, loss factors are applied based on the internal risk classifications of these loans. For consumer loans, loss factors are applied on a portfolio basis. For commercial, agriculture and real estate loans, loss factor percentages are based on a migration analysis of our historical loss experience, designed to account for credit deterioration. For consumer loans, loss factor percentages are based on a one-year loss history. General valuation allowances are determined by evaluating, on a quarterly basis, changes in the nature and volume of the loan portfolio, overall portfolio quality, industry concentrations, current economic and regulatory conditions and the estimated impact of these factors on historical loss rates.

An allowance for loan losses is established for loans acquired credit impaired and for which the Company projects a decrease in the expected cash flows in periods subsequent to the acquisition of such loans. As of September 30, 2015 and December 31, 2014, the Company's allowance for loan losses included $344 and $287, respectively, related to acquired loans.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(6)	Other Real Estate Owned

Information with respect to the Company's other real estate owned follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2015			2014			2015			2014
Beginning balance	$	11,773		$	16,425		$	13,554		$	15,504
OREO acquired through acquisition	—			3,608			—			3,608
Additions	984			398			5,380			4,797
Valuation adjustments	(73		)	(77		)	(179		)	(87		)
Dispositions	(4,653		)	(1,858		)	(10,724		)	(5,326		)
Ending balance	$	8,031		$	18,496		$	8,031		$	18,496

Foreclosed residential real estate properties of $1,810 were included in other real estate owned as of September 30, 2015. The Company did not have any consumer mortgage loans collateralized by residential real estate property that were in the process of foreclosure as of September 30, 2015.


(7)	Derivatives and Hedging Activities

For asset and liability management purposes, the Company has entered into interest rate swap contracts to hedge against changes in forecasted cash flows due to interest rate exposures. Interest rate swaps are contracts in which a series of interest payments are exchanged over a prescribed period. The notional amount upon which the interest payments are based is not exchanged. The swap agreements are derivative instruments and convert a portion of the Company’s forecasted variable rate debt to a fixed rate (i.e., cash flow hedge) over the payment term of the interest rate swap. The effective portion of the gain or loss on cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same period during which the transaction affects earnings. The ineffective portion of the gain or loss on derivative instruments, if any, is recognized in earnings. The Company does not enter into interest rate swap agreements for trading or speculative purposes.

The Company also enters into certain interest rate swap contracts that are not designated as hedging instruments. These derivative contracts relate to transactions in which the Company enters into an interest rate swap with a customer while at the same time entering into an offsetting interest rate swap with a third party financial institution. Because the Company acts as an intermediary for the customer, changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact the Company's results of operations.

The notional amounts and estimated fair values of the Company's interest rate swap contract are presented in the following table. Fair value estimates are obtained from third parties and are based on pricing models.



	September 30, 2015				December 31, 2014
	Notional Amount		Estimated Fair Value		Notional Amount		Estimated Fair Value
Derivatives designated as hedges:
Interest rate swap-liabilities	$	100,000	$	436	$	—	$	—
Non-hedging interest rate derivatives:
Interest rate swap-assets	9,456		918		3,149		61
Interest rate swap-liabilities	9,456		964		3,149		59

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

On September 22, 2015, the Company entered into an interest rate swap derivative liability with a notional amount of $100,000 that was designated as a cash flow hedge. Under the terms of the interest rate swap contract, the Company pays a fixed interest rate of 1.94% and the counterparty pays to the Company a variable interest rate equal to the three-month LIBOR. No cash is exchanged until the effective date, which begins on September 15, 2017 and ends on September 15, 2020. The Company designated the interest payments related to Federal Home Loan Bank borrowings as the cash flow hedge. The hedge was fully effective during the current period. As such, no amount of ineffectiveness was included in the Company's income statement for the three or nine months ended September 30, 2015. The fair value of the interest rate swap is included in other liabilities in the Company's balance sheet with changes in fair value recorded in other comprehensive income. The Company expects the hedge to remain highly effective during the remaining term of the interest rate swap.

The following table presents the pre-tax gains or losses related to the interest rate swap derivative contracts recorded in accumulated other comprehensive income and other non-interest income in the Company's statement of income:



	Three months ended				Nine months ended
	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Derivatives designated as hedges:
Amount of loss recognized in other comprehensive income (effective portion)	$	436	$	—	$	436	$	—
Non-hedging interest rate derivatives:
Amount of loss recognized in other non-interest income	31		—		48		—


(8)	Long-Term Debt

On January 29, 2015, the Company borrowed $4,960 on a 2.28% note payable maturing July 29, 2022, with interest payable monthly and principal due at maturity. The note is collateralized by the Company's equity interest in Universal Sub CDE, LLC, a community development entity owned 99.9% by the Company.


(9)	Capital Stock

The Company had 21,583,324 shares of Class A common stock and 23,761,683 shares of Class B common stock outstanding as of September 30, 2015. The Company had 21,928,932 shares of Class A common stock and 23,859,483 shares of Class B common stock outstanding as of December 31, 2014.

During the nine months ended September 30, 2015, the Company repurchased and retired 765,875 shares of its Class A common stock in open market transactions at an aggregate purchase price of $19,921. During the nine months ended September 30, 2014, the Company repurchased and retired 325,418 shares of its Class A common stock in a privately negotiated transaction at an aggregate purchase price of $8,143. The repurchases were made pursuant to stock repurchase programs approved by the Company's Board of Directors. Under the terms of the current stock repurchase program, the Company may repurchase up to an additional 1,000,000 shares of its Class A common stock. All other stock repurchases during the three and nine months ended September 30, 2015 and 2014 were redemptions of vested restricted shares tendered in lieu of cash for payment of income tax withholding amounts by participants of the Company's 2006 Equity Compensation Plan.

On April 3, 2015, the Company filed a Registration Statement on Form S-8 to register an additional 2,000,000 shares of Class A common stock to be issued pursuant to the Company's 2015 Equity and Incentive Plan.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(10)	Earnings per Common Share

Basic earnings per common share is calculated by dividing net income by the weighted average number of common shares outstanding during the period presented, excluding unvested restricted stock. Diluted earnings per share is calculated by dividing net income by the weighted average number of common shares determined for the basic earnings per share computation plus the dilutive effects of stock-based compensation using the treasury stock method.

The following table sets forth the computation of basic and diluted earnings per share for the three and nine month periods ended September 30, 2015 and 2014.



	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
Net income	$	20,162	$	19,155	$	63,364	$	61,625
Weighted average common shares outstanding for basic earnings per share computation	45,150,104		44,911,858		45,223,988		44,321,326
Dilutive effects of stock-based compensation	428,874		548,430		481,636		562,667
Weighted average common shares outstanding for diluted earnings per common share computation	45,578,978		45,460,288		45,705,624		44,883,993

Basic earnings per common share	$	0.45	$	0.43	$	1.40	$	1.39
Diluted earnings per common share	$	0.44	$	0.42	$	1.39	$	1.37

The Company had 165,489 and 102,529 shares of unvested restricted stock as of September 30, 2015 and 2014, respectively, that were not included in the computation of diluted earnings per common share because performance conditions for vesting had not been met. The Company had 5,884 shares of unvested restricted stock outstanding as of September 30, 2015 that were not included in the computation of diluted earnings per common shares because their effect would be anti-dilutive. The Company had no anti-dilutive equity instruments outstanding as of September 30, 2014.


(11)	Regulatory Capital

On July 2, 2013, the Board of Governors of the Federal Reserve Bank issued a final rule implementing a revised regulatory capital framework for U.S. banks in accordance with the Basel III international accord and satisfying related mandates under the Dodd-Frank Wall Street Reform and Consumer Protection Act . The revised regulatory capital framework ("Basel III ") includes a more stringent definition of capital and introduces a new common equity tier 1, or CET1, capital requirement, sets forth a comprehensive methodology for calculating risk-weighted assets, introduces a conservation buffer and sets out minimum capital ratios and overall capital adequacy standards. As a banking organization subject to the standardized approach, Basel III became effective for us on January 1, 2015. Certain deductions and adjustments to regulatory capital began to phase in starting January 1, 2015 and will be fully implemented on January 1, 2018. The capital conservation buffer phases in beginning January 1, 2016 and will be fully implemented on January 1, 2019.

CET1 capital predominantly includes common shareholders’ equity, less certain deductions for goodwill, intangible assets and deferred tax assets that arise from net operating losses and tax credit carry-forwards. The Company has elected to permanently exclude accumulated other comprehensive income from CET1 capital. Certain deductions and adjustments to CET1 capital, tier 1 capital and tier 2 capital are subject to phase-in through December 31, 2017.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

As of September 30, 2015 and December 31, 2014, the Company exceeded all capital adequacy requirements to which it is subject. Actual capital amounts and ratios for the Company and its bank subsidiary, as of September 30, 2015 and December 31, 2014 are presented in the following tables:



	Actual				Adequately Capitalized				Well Capitalized (1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio
September 30, 2015
Total risk-based capital:
Consolidated	$	931,352	15.3	%	$	487,670	8.0	%	$	609,588	10.0	%
FIB	868,800		14.3		486,925		8.0		608,656		10.0
Tier 1 risk-based capital:
Consolidated	843,096		13.8		365,753		6.0		487,670		8.0
FIB	788,544		13.0		365,194		6.0		486,925		8.0
Common equity tier 1 risk-based capital:
Consolidated	763,096		12.5		274,315		4.5		396,232		6.5
FIB	788,544		13.0		273,895		4.5		395,626		6.5
Leverage capital ratio:
Consolidated	843,096		10.1		332,961		4.0		416,202		5.0
FIB	788,544		9.5		332,071		4.0		415,089		5.0



	Actual				Adequately Capitalized				Well Capitalized (1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2014
Total risk-based capital:
Consolidated	$	897,769	16.2	%	$	444,685	8.0	%	$	555,856	10.0	%
FIB	832,907		15.1		442,468		8.0		553,085		10.0
Tier 1 risk-based capital:
Consolidated	807,229		14.5		222,343		4.0		333,514		6.0
FIB	754,708		13.7		221,234		4.0		331,851		6.0
Leverage capital ratio:
Consolidated	807,229		9.6		335,897		4.0		419,871		5.0
FIB	754,708		9.2		330,006		4.0		412,507		5.0


(1)	The ratios for the well-capitalized requirement are only applicable to FIB. However, the Company manages its capital position as if the requirement applies to the consolidated entity and has presented the ratios as if they also applied on a consolidated basis.


(12)	Commitments and Contingencies

Legal Proceedings. The Company's wholly owned banking subsidiary, FIB, was a defendant in a lender liability lawsuit, Kelly Logging Inc. v. First Interstate Bank ("the case"). The case was settled on August 31, 2015. Legal and settlement costs related to the case of $5,000 and $4,000 during the three and nine months ended September 30, 2015 and 2014, respectively, are included in loss contingency expenses in the accompanying statements of income.

In the normal course of business, the Company is involved in various other claims and litigation. In the opinion of management, following consultation with legal counsel, the ultimate liability or disposition thereof of all other claims and litigation is not expected to have a material adverse effect on the consolidated financial condition, results of operations or liquidity of the Company.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Other Commitments. As of September 30, 2015, the Company had commitments under construction agreements of $3,020.


(13)	Financial Instruments with Off-Balance Sheet Risk

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the commitment contract. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. At September 30, 2015, commitments to extend credit to existing and new borrowers approximated $1,591,054, which included $545,636 on unused credit card lines and $374,148 with commitment maturities beyond one year.

Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. At September 30, 2015, the Company had outstanding standby letters of credit of $59,721. The estimated fair value of the obligation undertaken by the Company in issuing the standby letters of credit is included in other liabilities in the Company’s consolidated balance sheet.


(14)	Supplemental Disclosures to Consolidated Statement of Cash Flows

The Company transferred loans of $5,380 and $4,797 to OREO during the nine months ended September 30, 2015 and 2014, respectively.

The Company transferred internally originated mortgage servicing rights of $2,709 and $2,005 from loans to mortgage servicing assets during the nine months ended September 30, 2015 and 2014, respectively.

The Company transferred loans of $10,619 to loans held for sale during the nine months ended September 30, 2015.

The Company transferred bank buildings and land pending disposal with book values of $1,805 to other assets during the nine months ended September 30, 2015.

During the nine months ended September 30, 2014, the Company issued 1,378,230 shares of its Class A common stock valued at $35,972 as partial consideration for the acquisition of MWFC.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(15)	Other Comprehensive Income/Loss

The gross amounts of each component of other comprehensive income (loss) and the related tax effects are as follows:



	Pre-tax						Tax Expense (Benefit)						Net of Tax
Three Months Ended September 30,	2015			2014			2015			2014			2015			2014
Investment securities available-for sale:
Change in net unrealized gains/losses during period	$	10,855		$	(3,773	)	$	4,272		$	(1,581	)	$	6,583		$	(2,192	)
Reclassification adjustment for net gains included in net income	(23		)	8			(10		)	3			(13		)	5
Change in unamortized loss on available- for-sale securities transferred into held-to- maturity	448			451			177			274			271			177
Unrealized loss on derivatives	(436		)	—			(172		)	—			(264		)	—
Defined benefits post-retirement benefit plan:
Change in net actuarial loss	15			33			6			13			9			20
Total other comprehensive income (loss)	$	10,859		$	(3,281	)	$	4,273		$	(1,291	)	$	6,586		$	(1,990	)



	Pre-tax						Tax Expense (Benefit)						Net of Tax
Nine Months Ended September 30,	2015			2014			2015			2014			2015			2014
Investment securities available-for sale:
Change in net unrealized gains/losses during period	$	12,264		$	12,942		$	4,827		$	4,900		$	7,437		$	8,042
Reclassification adjustment for net gains included in net income	(75		)	(80		)	(30		)	(32		)	(45		)	(48		)
Change in unamortized loss on available- for-sale securities transferred into held-to- maturity	1,353			902			532			547			821			355
Unrealized loss on derivatives	(436		)	—			(172		)	—			(264		)	—
Defined benefits post-retirement benefit plan:
Change in net actuarial loss	43			103			17			41			26			62
Total other comprehensive income	$	13,149		$	13,867		$	5,174		$	5,456		$	7,975		$	8,411

The components of accumulated other comprehensive loss, net of income tax benefits, are as follows:



	September 30, 2015			December 31, 2014
Net unrealized loss on investment securities available-for-sale	$	6,264		$	(2,121	)
Net unrealized loss on derivatives	(436		)	—
Net actuarial loss on defined benefit post-retirement benefit plans	(387		)	(413		)
Net accumulated other comprehensive income (loss)	$	5,441		$	(2,534	)

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(16)	Fair Value Measurements

Financial assets and financial liabilities measured at fair value on a recurring basis are as follows:



			Fair Value Measurements at Reporting Date Using
As of September 30, 2015	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment securities available-for-sale:
U.S. Treasury Notes	$	3,941	$	—	$	3,941	$	—
Obligations of U.S. government agencies	606,044			—	606,044			—
U.S. agencies mortgage-backed securities & collateralized mortgage obligations	931,055			—	931,055			—
Private mortgage-backed securities	258			—	258			—
Other investments	3,795			—	3,795			—
Derivative assets:
Interest rate swaps	918			—	918			—
Derivative liabilities:
Interest rate swaps	1,400			—	1,400			—



			Fair Value Measurements at Reporting Date Using
As of December 31, 2014	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment securities available-for-sale:
Obligations of U.S. government agencies	$	720,933	$	—	$	720,933	$	—
U.S. agencies mortgage-backed securities & collateralized mortgage obligations	990,666			—	990,666			—
Private mortgage-backed securities	325			—	325			—
Derivative assets:
Interest rate swaps	61			—	61			—
Derivative liabilities:
Interest rate swaps	59			—	59			—

There were no changes in valuation methodologies or transfers between levels of the fair value hierarchy during the nine months ended September 30, 2015 or 2014.

The methodologies used by the Company in determining the fair values of each class of financial instruments are based primarily on the use of independent, market-based data to reflect a value that would be reasonably expected in an orderly transaction between market participants at the measurement date.

The Company obtains fair value measurements for investment securities and derivative financial instruments from independent pricing services. The vendors chosen by the Company are widely recognized vendors whose evaluations support the pricing functions of financial institutions, investment and mutual funds, and portfolio managers. The Company has documented and evaluated the pricing methodologies used by the investment securities pricing vendors and maintains internal processes that regularly test valuations. These internal processes include obtaining and reviewing available reports on internal controls, evaluating the prices for reasonableness given market changes, obtaining and evaluating the inputs used in the model for a sample of securities, investigating anomalies and confirming determinations through discussions with the vendor. For investment securities, if needed, a broker may be utilized to determine the reported fair value. Further details on the methods used to estimate the fair value of each class of financial instruments above are discussed below.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Investment Securities Available-for-Sale. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the investment's terms and conditions, among other things.

Derivative Liabilities. Fair values for interest rate swap derivative liabilities are based upon the estimated amounts to settle the contracts considering current interest rates and are calculated using discounted cash flows that are observable or that can be corroborated by observable market data. The inputs used to determine fair value include the 3 month LIBOR forward curve to estimate variable rate cash inflows and the Fed Funds Effective Swap Rate to estimate the discount rate. The estimated variable rate cash inflows are compared to the fixed rate outflows and such difference is discounted to a present value to estimate the fair value of the interest rate swaps.

Additionally, from time to time, certain assets are measured at fair value on a non-recurring basis. Adjustments to fair value generally result from the application of lower-of-cost-or-market accounting or write-downs of individual assets due to impairment.

The following table presents information about the Company’s assets and liabilities measured at fair value on a non-recurring basis.



				Fair Value Measurements at Reporting Date Using
As of September 30, 2015	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Impaired loans	$	44,940	$	—	$	—	$	44,940
Other real estate owned	4,067			—		—	4,067
Long-lived assets to be disposed of by sale	2,083			—		—	2,083

				Fair Value Measurements at Reporting Date Using
As of December 31, 2014	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Impaired loans	$	30,494	$	—	$	—	$	30,494
Other real estate owned	4,554			—		—	4,554
Long-lived assets to be disposed of by sale	1,083			—		—	1,083

Impaired Loans. Collateralized impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from collateral. The impaired loans are reported at fair value through specific valuation allowance allocations. In addition, when it is determined that the fair value of an impaired loan is less than the recorded investment in the loan, the carrying value of the loan is adjusted to fair value through a charge to the allowance for loan losses. Collateral values are estimated using independent appraisals and management estimates of current market conditions. As of September 30, 2015, certain impaired loans with a carrying value of $47,502 were reduced by specific valuation allowance allocations of $8,573 and partial loan charge-offs of $11,134 resulting in a reported fair value of $27,795. As of December 31, 2014, certain impaired loans with a carrying value of $45,046 were reduced by specific valuation allowance allocations of $5,792 and partial loan charge-offs of $8,760 resulting in a reported fair value of $30,494.

OREO.The fair values of OREO are estimated using independent appraisals and management estimates of current market conditions. Upon initial recognition, write-downs based on the foreclosed asset's fair value at foreclosure are reported through charges to the allowance for loan losses. Periodically, the fair value of foreclosed assets is remeasured with any subsequent write-downs charged to OREO expense in the period in which they are identified. Write-downs of $179 during the nine months ended September 30, 2015 included $106 directly related to receipt of updated appraisals and 73 based on management estimates of the current fair value of properties. Write downs of $87 during the nine months ended September 30, 2014 were based on management's estimate of the current fair value of the properties.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Long-lived Assets to be Disposed of by Sale. Long-lived assets to be disposed of by sale are carried at the lower of carrying value or fair value less estimated costs to sell. The fair values of long-lived assets to be disposed of by sale are based upon observable market data and management estimates of current market conditions. As of September 30, 2015, the Company had long-lived assets to be disposed of by sale with carrying values aggregating $3,590 that were reduced by write-downs of $1,507 resulting in an aggregate fair value of $2,083. As of December 31, 2014, the Company had long-lived assets to be disposed of by sale with carrying values aggregating $1,785 that were reduced by write-downs of $702 resulting in an aggregate fair value of $1,083.

In addition, mortgage loans held for sale are required to be measured at the lower of cost or fair value. The fair value of mortgage loans held for sale is based upon binding contracts or quotes or bids from third party investors. As of September 30, 2015 and December 31, 2014, all mortgage loans held for sale were recorded at cost.

The following table presents additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company has utilized Level 3 inputs to determine fair values:



As of September 30, 2015	Fair Value		Valuation Technique	Unobservable Inputs	Range (Weighted Average)
Impaired loans	$	44,940	Appraisal	Appraisal adjustment	0%	-	51%	(19%)
Other real estate owned	4,067		Appraisal	Appraisal adjustment	0%	-	50%	(15%)
Long-lived assets to be disposed of by sale	2,083		Appraisal	Appraisal adjustment	0%	-	9%	(5%)

As of December 31, 2014	Fair Value		Valuation Technique	Unobservable Inputs	Range (Weighted Average)
Impaired loans	$	30,494	Appraisal	Appraisal adjustment	0%	-	51%	(19%)
Other real estate owned	4,554		Appraisal	Appraisal adjustment	0%	-	50%	(15%)
Long-lived assets to be disposed of by sale	1,083		Appraisal	Appraisal adjustment	0%	-	9%	(5%)

The Company is required to disclose the fair value of financial instruments for which it is practical to estimate fair value. The methodologies for estimating the fair value of financial instruments that are measured at fair value on a recurring or non-recurring basis are discussed above. The methodologies for estimating the fair value of other financial instruments are discussed below. For financial instruments bearing a variable interest rate where no credit risk exists, it is presumed that recorded book values are reasonable estimates of fair value.

Financial Assets. Carrying values of cash, cash equivalents and accrued interest receivable approximate fair values due to the liquid and/or short-term nature of these instruments. Fair values for investment securities held-to-maturity are obtained from an independent pricing service, which considers observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the investment’s terms and conditions, among other things. Fair values of fixed rate loans and variable rate loans that reprice on an infrequent basis are estimated by discounting future cash flows using current interest rates at which similar loans with similar terms would be made to borrowers of similar credit quality. Carrying values of variable rate loans that reprice frequently, and with no change in credit risk, approximate the fair values of these instruments.

Financial Liabilities. The fair values of demand deposits, savings accounts, securities sold under repurchase agreements and accrued interest payable are the amounts payable on demand at the reporting date. The fair values of fixed-maturity certificates of deposit are estimated using external market rates currently offered for deposits with similar remaining maturities. The fair values of derivative liabilities are obtained from an independent pricing service, which considers observable data that may include the three-month LIBOR forward curve, the federal funds effective swap rate and cash flows, among other things. The carrying values of the interest bearing demand notes to the United States Treasury are deemed an approximation of fair values due to the frequent repayment and repricing at market rates. The fixed and floating rate subordinated debentures, floating rate subordinated term loan, notes payable to the FHLB, fixed rate subordinated term debt, and capital lease obligation are estimated by discounting future cash flows using current rates for advances with similar characteristics.

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

Commitments to Extend Credit and Standby Letters of Credit. The fair value of commitments to extend credit and standby letters of credit, based on fees currently charged to enter into similar agreements, is not significant.

The estimated fair values of financial instruments that are reported in the Company's consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, are as follows:



					Fair Value Measurements at Reporting Date Using
As of September 30, 2015	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	708,295	$	708,295	$	708,295	$	—	$	—
Investment securities available-for-sale	1,545,093		1,545,093		—		1,545,093		—
Investment securities held-to-maturity	522,543		534,633		—		534,633		—
Accrued interest receivable	31,590		31,590		—		31,590		—
Mortgage servicing rights, net	15,336		31,544		—		31,544		—
Net loans	5,102,244		5,055,788		—		5,010,848		44,940
Total financial assets	$	7,925,101	$	7,906,943	$	708,295	$	7,153,708	$	44,940

Financial liabilities:
Total deposits, excluding time deposits	$	5,885,462	$	5,885,462	$	5,885,462	$	—	$	—
Time deposits	1,150,332		1,154,128		—		1,154,128		—
Securities sold under repurchase agreements	437,533		437,533		—		437,533		—
Other borrowed funds	10		10		—		10		—
Derivative liabilities	436		436		—		436		—
Accrued interest payable	5,327		5,327		—		5,327		—
Long-term debt	43,089		41,818		—		41,818		—
Subordinated debentures held by subsidiary trusts	82,477		74,723		—		74,723		—
Total financial liabilities	$	7,604,666	$	7,599,437	$	5,885,462	$	1,713,975	$	—

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FIRST INTERSTATE BANCSYSTEM, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)



					Fair Value Measurements at Reporting Date Using
As of December 31, 2014	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	798,670	$	798,670	$	798,670	$	—	$	—
Investment securities available-for-sale	1,711,924		1,711,924		—		1,711,924		—
Investment securities held-to-maturity	575,186		584,533		—		584,533		—
Accrued interest receivable	27,063		27,063		—		27,063		—
Mortgage servicing rights, net	14,038		21,434		—		21,434		—
Net loans	4,823,243		4,800,725		—		4,770,231		30,494
Total financial assets	$	7,950,124	$	7,944,349	$	798,670	$	7,115,185	$	30,494

Financial liabilities:
Total deposits, excluding time deposits	$	5,767,992	$	5,767,992	$	5,767,992	$	—	$	—
Time deposits	1,238,220		1,244,324		—		1,244,324		—
Securities sold under repurchase agreements	502,250		502,250		—		502,250		—
Other borrowed funds	9		9		—		9		—
Accrued interest payable	5,833		5,833		—		5,833		—
Long-term debt	38,067		37,781		—		37,781		—
Subordinated debentures held by subsidiary trusts	82,477		75,734		—		75,734		—
Total financial liabilities	$	7,634,848	$	7,633,923	$	5,767,992	$	1,865,931	$	—


(17)	Recent Authoritative Accounting Guidance

ASU 2014-04 “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure.” The amendments in ASU 2014-04 clarify that an in-substance repossession or foreclosures occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (i) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (ii) the borrower conveying all interest in the residential real estate property to the creditor to satisfy the loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments in ASU 2014-04 also require interim and annual disclosure of both (i) the amount of foreclosed residential real estate property held by the creditor and (ii) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure. The Company adopted the amendments in ASU 2014-04 effective January 1, 2015 using a prospective transition method. Adoption of the amendments in ASU 2014-04 did not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2014-09 "Revenue from Contracts with Customers." The amendments in ASU 2014-09 introduce a new five-step revenue recognition model in which an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also requires disclosures sufficient to enable users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, including qualitative and quantitative disclosures about contracts with customers, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract. ASU 2015-14 was released in August of 2015 and the amendments defer the effective date of 2014-09 for all entities by one year. Public companies, certain not-for-profit and certain employee benefit plans should apply the guidance to annual reporting period beginning after December 15, 2017. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016. The Company is continuing to evaluate the new guidance to determine the impact it will have on its consolidated financial statements, results of operations or liquidity.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

ASU 2014-11 "Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures." The amendments in ASU 2014-11 expand secured borrowing treatment for certain repurchase agreements. Under the amendments in ASU 2014-11, repurchase-to-maturity transactions and repurchase agreements executed as repurchase financing transactions are required to be accounted for as secured borrowings. ASU 2014-11 requires additional disclosures about certain transactions accounted for as a sale in which the transferor retains substantially all of the exposure to the economic return on the transferred financial assets through an agreement with the same counterparty. ASU 2014-11 also requires disclosure of the types of collateral pledged and liabilities associated with an entity's repurchase agreements, securities lending transactions and repurchase-to-maturity transactions accounted for as secured borrowings. The Company adopted the amendments in ASU 2014-11 are effective January 1, 2015. The adoption did not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2014-12 "Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could be Achieved after the Requisite Service Period." ASU 2014-12 amends Accounting Standards Codification ("ASC") Topic 718, Compensation-Stock Compensation, to clarify that a performance target that affects the vesting of a share-based payment award and that could be achieved after the requisite service period should be treated as a performance condition that affects the vesting of the award. ASU 2014-12 further clarifies that the requisite service period ends when the employees can cease rendering service and still be eligible to vest in the award if the performance target is achieved. The amendments in ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. The amendments in ASU 2014-12 may be applied prospectively to all awards granted or modified after the effective date or retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The amendments in ASU 2014-12 will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2014-14 "Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure." ASU 2014-14 updates ASC Subtopic 310-40, Receivables-Troubled Debt Restructurings by Creditors, to require that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if (i) the loan has a government guarantee that is not separable from the loan before foreclosure; (ii) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim; and, (iii) any amount of the claim that is determined on the basis of the fair value of the real estate is fixed at the time of foreclosure. ASU 2014-14 provides that, upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The Company adopted the amendments in ASU 2014-14 effective January 1, 2015, using a prospective transition method. Adoption of the amendments in ASU 2014-12 did not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2014-16 "Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or to Equity." The amendments in ASU 2014-16 clarify that an entity should consider all relevant terms and features-including the embedded derivative feature being evaluated for bifurcation-in evaluating the nature of the host contract within a hybrid financial instrument. The amendments further clarify that no single term or feature would necessarily determine the economic characteristics and risk of the host contract. Rather, the nature of the host contract depends upon the economic characteristics and risk of the entire hybrid financial instrument. The amendments in ASU 2014-16 are effective for the Company for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. The effects of initially adopting the amendments in ASU 2014-16 should be applied on a modified retrospective basis to existing hybrid financial instruments issued in the form of a share as of the beginning of the fiscal year for which the amendments are effective. Retrospective application is permitted to all relevant prior periods. The amendments in ASU 2014-16 will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2015-02 "Amendments to the Consolidation Analysis." The amendments in ASU 2015-02 (i) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, (ii) eliminate the presumption that a general partner should consolidate a limited partnership, (iii) affect the consolidation analysis of reporting entities that are involved with variable interest entities, particularly those that have fee arrangements and related party relationships, and (iv) provide scope exceptions from consolidation guidance for

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)

reporting entities with interest in legal entities that are required to comply or operate in accordance with requirements of the Investment Company Act of 1940 for registered market funds. The amendments in ASU 2015-02 are effective for public entities for fiscal years, and interim periods within those years, beginning after December 15, 2015, with early adoption permitted. The amendments in ASU 2015-02, which may be adopted using a retrospective or modified retrospective approach, will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2015-03 "Simplifying the Presentation of Debt Issuance Costs." The amendments in ASU 2015-03 require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, rather than as a deferred charge. The guidance in Update 2015-03 did not address presentation or subsequent measurement of debt issues costs related to line-of-credit arrangements. ASU 2015-15 addresses this gap. ASU 2015-15 adds that the SEC staff would not object to an entity deferring and presenting debt issuance costs as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The amendments in ASU 2015-03 are effective for public entities for fiscal years, and interim periods within those years, beginning after December 15, 2015, and should be applied on a retrospective basis. The amendments in ASU 2015-03 will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2015-05 "Intangibles-Goodwill and Other Internal-Use Software." The amendments in ASU 2015-05 (i) provide guidance about whether a cloud computing arrangement includes a software license. Under the guidance in ASU 2015-05, if a cloud computing arrangement includes a software license, the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance in ASU 2015-05 does not change generally accepted accounting principles for a customer's accounting for service contracts. The amendments in ASU 2015-05 are effective for public entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015, with early adoption permitted. The amendments in ASU 2015-05, which may be adopted retrospectively or prospectively to all arrangements entered into or materially modified after the effective date. Adoption of the amendments in ASU 2015-05 will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2015-10 "Technical Corrections and Improvements." The amendments in ASU 2015-10 represent changes to clarify the codification, correct unintended application of guidance, or make minor improvements to the codification that are not expected to have a significant effect on current accounting practice or create a significant administrative cost to most entities. The amendments in ASU 2015-10 that require transition guidance are effective for all entities for fiscal years, and interim periods within those years, beginning after December 15, 2015, with early adoption permitted. All other amendments in ASU 2015-10 became effective in June 2015. The amendments in ASU 2015-03 will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

ASU 2015-16 “Business Combinations-Simplifying the Accounting for Measurement-Period Adjustments.” The amendments in ASU 2015-16 eliminate the requirement to retrospectively account for adjustments made to provisional amounts recognized as part of a business combination. Under the amendments in ASU 2015-16, an acquirer must recognize adjustments to the provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The amendments in ASU 2015-16 require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. ASU 2015-16 is effective for the Company for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments in ASU 2015-16, which are applied prospectively to adjustments to provisional amounts that occur after the effective date, will not have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

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NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except share and per share data)


(18)	Subsequent Events

Subsequent events have been evaluated for potential recognition and disclosure through the date financial statements were filed with the Securities and Exchange Commission. On October 6, 2015, the Company declared a quarterly dividend to common shareholders of $0.20 per share, to be paid on November 13, 2015 to shareholders of record as of November 2, 2015.

No other events requiring recognition or disclosure were identified.

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Item 2.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014, including the audited financial statements contained therein, filed with the Securities and Exchange Commission, or SEC.

When we refer to “we,” “our,” and “us” in this report, we mean First Interstate BancSystem, Inc. and our consolidated subsidiaries, unless the context indicates that we refer only to the parent company, First Interstate BancSystem, Inc.

Cautionary Note Regarding Forward-Looking Statements and Factors that Could Affect Future Results

“Forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Rule 175 promulgated thereunder, and Section 21E of the Securities Exchange Act of 1934, as amended, and Rule 3b-6 promulgated thereunder, that involve inherent risks and uncertainties. Any statements about our plans, objectives, expectations, strategies, beliefs, or future performance or events constitute forward-looking statements. Such statements are identified as those that include words or phrases such as “believes,” “expects,” “anticipates,” “plans,” “trend,” “objective,” “continue” or similar expressions or future or conditional verbs such as “will,” “would,” “should,” “could,” “might,” “may” or similar expressions. Forward-looking statements involve known and unknown risks, uncertainties, assumptions, estimates and other important factors that could cause actual results to differ materially from any results, performance or events expressed or implied by such forward-looking statements. The following factors, among others, may cause actual results to differ materially from current expectations in the forward-looking statements, including those set forth in this report: continuing or worsening business and economic conditions, adverse economic conditions affecting Montana, Wyoming and western South Dakota, credit losses, lending risk, adequacy of the allowance for loan losses, impairment of goodwill, failure to manage growth, access to low-cost funding sources, changes in interest rates, dependence on the Company’s management team, ability to attract and retain qualified employees, governmental regulation and changes in regulatory, tax and accounting rules and interpretations, failure of technology, cyber-security, unfavorable resolution of pending litigation, inability to meet liquidity requirements, environmental remediation and other costs, ineffective internal operational controls, competition, reliance on external vendors, litigation pertaining to fiduciary responsibilities, failure to effectively implement technology-driven products and services, soundness of other financial institutions, inability of our bank subsidiary to pay dividends, implementation of new lines of business or new product or service offerings, change in dividend policy, volatility of Class A common stock, decline in market price of Class A common stock, dilution as a result of future equity issuances, uninsured nature of any investment in Class A common stock, voting control of Class B stockholders, anti-takeover provisions, controlled company status, and, subordination of common stock to Company debt.

A more detailed discussion of each of the foregoing risks is included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014, filed February 27, 2015. These factors and the other risk factors described in the Company's periodic and current reports filed with the SEC from time to time, however, are not necessarily all of the important factors that could cause the Company's actual results, performance or achievements to differ materially from those expressed in or implied by any of the Company's forward-looking statements. Other unknown or unpredictable factors also could harm the Company's results. Investors and others are encouraged to read the more detailed discussion of the Company's risks contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2014.

All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the cautionary statements set forth above. Forward-looking statements speak only as of the date they are made and we do not undertake or assume any obligation to update publicly any of these statements to reflect actual results, new information or future events, changes in assumptions or changes in other factors affecting forward-looking statements, except to the extent required by applicable laws. If we update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

Executive Overview

We are a financial holding company headquartered in Billings, Montana. As of September 30, 2015, we had consolidated assets of $8,605 million, deposits of $7,036 million, loans of $5,176 million and total stockholders’ equity of $939 million. We currently operate 81 banking offices, including detached drive-up facilities, in 45 communities located in Montana, Wyoming and South Dakota. Through our bank subsidiary, First Interstate Bank, or FIB, we deliver a comprehensive range of banking products and services to individuals, businesses, municipalities and other entities throughout our market areas. Our customers participate in a wide variety of industries, including energy, tourism, agriculture, healthcare, professional services, education, governmental services, construction, mining, retail and wholesale trade.

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Our Business

Our principal business activity is lending to and accepting deposits from individuals, businesses, municipalities and other entities. We derive our income principally from interest charged on loans and, to a lesser extent, from interest and dividends earned on investments. We also derive income from non-interest sources such as fees received in connection with various lending and deposit services; trust, employee benefit, investment and insurance services; mortgage loan originations, sales and servicing; merchant and electronic banking services; and from time to time, gains on sales of assets. Our principal expenses include interest expense on deposits and borrowings, operating expenses, provisions for loan losses and income tax expense.

Our loan portfolio consists of a mix of real estate, consumer, commercial, agricultural and other loans, including fixed and variable rate loans. Our real estate loans comprise commercial real estate, construction (including residential, commercial and land development loans), residential, agricultural and other real estate loans. Fluctuations in the loan portfolio are directly related to the economies of the communities we serve. While each loan originated generally must meet minimum underwriting standards established in our credit policies, lending officers are granted discretion within pre-approved limits in approving and pricing loans to assure that the banking offices are responsive to competitive issues and community needs in each market area. We fund our loan portfolio primarily with the core deposits from our customers, generally without utilizing brokered deposits and with minimal reliance on wholesale funding sources.

Recent Developments

On March 26, 2015, the Company entered into an agreement and plan of merger to acquire all of the outstanding stock of Absarokee Bancorporation, Inc., or Absarokee, a Montana-based bank holding company that operated one wholly-owned subsidiary bank, United Bank, with branches located in three Montana communities adjacent to the Company's existing market areas. The acquisition was completed on July 24, 2015. Pursuant to the terms of the Agreement and Plan of Merger to acquire Absarokee, the Company paid cash consideration of $7.2 million. As of the acquisition date, Absarokee had total assets of $73 million, loans of $38 million and deposits of $64 million. Immediately subsequent to the acquisition, the Company merged United Bank with and into its existing banking subsidiary, FIB. For additional information regarding the acquisition, see “Note 2 – Acquisitions” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report.

On July 2, 2013, the Board of Governors of the Federal Reserve Bank issued a final rule implementing a revised regulatory capital framework for U.S. banks in accordance with the Basel III international accord. As a banking organization subject to the standardized approach, the revised regulatory capital framework, or Basel III, became effective for us on January 1, 2015. Basel III includes a more stringent definition of capital and introduces a new common equity tier 1, or CET1, capital requirement, sets forth a comprehensive methodology for calculating risk-weighted assets, introduces a conservation buffer and sets out minimum capital ratios and overall capital adequacy standards. Certain deductions and adjustments to regulatory capital phase in starting January 1, 2015 and will be fully implemented on January 1, 2018. The capital conservation buffer phases in beginning January 1, 2016 and will be fully implemented on January 1, 2019. As of September 30, 2015 and December 31, 2014, we had capital levels that, in all cases, exceeded the well-capitalized guidelines. For additional information regarding our capital levels, see "Capital Resources and Liquidity Management" included herein and “Note 11 – Regulatory Capital” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report.

Primary Factors Used in Evaluating Our Business

As a banking institution, we manage and evaluate various aspects of both our financial condition and our results of operations. We monitor our financial condition and performance on a monthly basis at our holding company, at the Bank and at each banking office. We evaluate the levels and trends of the line items included in our balance sheet and statements of income, as well as various financial ratios that are commonly used in our industry. We analyze these ratios and financial trends against both our own historical levels and the financial condition and performance of comparable banking institutions in our region and nationally.

Results of Operations

Principal factors used in managing and evaluating our results of operations include return on average equity, net interest income, non-interest income, non-interest expense and net income. Net interest income is affected by the level of interest rates, changes in interest rates and changes in the volume and composition of interest earning assets and interest bearing liabilities. The most significant impact on our net interest income between periods is derived from the interaction of changes in the rates earned or paid on interest earning assets and interest bearing liabilities, which we refer to as interest rate spread. The volume of loans, investment securities and other interest earning assets, compared to the volume of interest bearing deposits and indebtedness, combined with the interest rate spread, produces changes in our net interest income between periods. Non-interest bearing sources of funds, such as demand deposits and stockholders’ equity, also support earning assets.

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The impact of free funding sources is captured in the net interest margin, which is calculated as net interest income divided by average earning assets. We evaluate our net interest income on factors that include the yields on our loans and other earning assets, the costs of our deposits and other funding sources, the levels of our net interest spread and net interest margin and the provisions for loan losses required to maintain our allowance for loan losses at an adequate level.

We seek to increase our non-interest income over time and we evaluate our non-interest income relative to the trends of the individual types of non-interest income in view of prevailing market conditions.

We manage our non-interest expenses in consideration of growth opportunities and our community banking model that emphasizes customer service and responsiveness. We evaluate our non-interest expense on factors that include our non-interest expense relative to our average assets, our efficiency ratio and the trends of the individual categories of non-interest expense.

Finally, we seek to increase our net income and provide favorable shareholder returns over time, and we evaluate our net income relative to the performance of other bank holding companies on factors that include return on average assets, return on average equity, total shareholder return and growth in earnings.

Financial Condition

Principal areas of focus in managing and evaluating our financial condition include liquidity, the diversification and quality of our loans, the adequacy of our allowance for loan losses, the diversification and terms of our deposits and other funding sources, the re-pricing characteristics and maturities of our assets and liabilities, including potential interest rate exposure and the adequacy of our capital levels. We seek to maintain sufficient levels of cash and investment securities to meet potential payment and funding obligations, and we evaluate our liquidity on factors that include the levels of cash and highly liquid assets relative to our liabilities, the quality and maturities of our investment securities, the ratio of loans to deposits and any reliance on brokered certificates of deposit or other wholesale funding sources.

We seek to maintain a diverse and high quality loan portfolio and evaluate our asset quality on factors that include the allocation of our loans among loan types, credit exposure to any single borrower or industry type, non-performing assets as a percentage of total loans and OREO, and loan charge-offs as a percentage of average loans. We seek to maintain our allowance for loan losses at a level adequate to absorb probable losses inherent in our loan portfolio at each balance sheet date, and we evaluate the level of our allowance for loan losses relative to our overall loan portfolio and the level of non-performing loans and potential charge-offs.

We seek to fund our assets primarily using core customer deposits spread among various deposit categories, and we evaluate our deposit and funding mix on factors that include the allocation of our deposits among deposit types, the level of our non-interest bearing deposits, the ratio of our core deposits (i.e. excluding time deposits above $100,000) to our total deposits and our reliance on brokered deposits or other wholesale funding sources, such as borrowings from other banks or agencies. We seek to manage the mix, maturities and re-pricing characteristics of our assets and liabilities to maintain relative stability of our net interest rate margin in a changing interest rate environment, and we evaluate our asset-liability management using models to evaluate the changes to our net interest income under different interest rate scenarios.

Finally, we seek to maintain adequate capital levels to absorb unforeseen operating losses and to help support the growth of our balance sheet. We evaluate our capital adequacy using the regulatory and financial capital ratios including leverage capital ratio, tier 1 risk-based capital ratio, total risk-based capital ratio, common equity tier 1 risk-based capital ratio and tangible common equity to tangible assets.

Critical Accounting Estimates and Significant Accounting Policies

Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States and follow general practices within the industries in which we operate. Application of these principles requires management to make estimates, assumptions and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes. The most significant accounting policies we follow are summarized in Note 1 of the Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2014.

Our critical accounting estimates are summarized below. Management considers an accounting estimate to be critical if: (1) the accounting estimate requires management to make particularly difficult, subjective and/or complex judgments about matters that are inherently uncertain and (2) changes in the estimate that are reasonably likely to occur from period to period, or the use of different estimates that management could have reasonably used in the current period, would have a material impact on our consolidated financial statements, results of operations or liquidity.

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Allowance for Loan Losses

The provision for loan losses creates an allowance for loan losses known and inherent in the loan portfolio at each balance sheet date. The allowance for loan losses represents management’s estimate of probable credit losses inherent in the loan portfolio.

We perform a quarterly assessment of the risks inherent in our loan portfolio, as well as a detailed review of each significant loan with identified weaknesses. Based on this analysis, we record a provision for loan losses in order to maintain the allowance for loan losses at appropriate levels. In determining the allowance for loan losses, we estimate losses on specific loans, or groups of loans, where the probable loss can be identified and reasonably determined. Determining the amount of the allowance for loan losses is considered a critical accounting estimate because it requires significant judgment and the use of subjective measurements, including management’s assessment of the internal risk classifications of loans, historical loan loss rates, changes in the nature of the loan portfolio, overall portfolio quality, industry concentrations, delinquency trends and the impact of current local, regional and national economic factors on the quality of the loan portfolio. Changes in these estimates and assumptions are possible and may have a material impact on our allowance, and therefore our consolidated financial statements or results of operations. The allowance for loan losses is maintained at an amount we believe is sufficient to provide for estimated losses inherent in our loan portfolio at each balance sheet date, and fluctuations in the provision for loan losses result from management’s assessment of the adequacy of the allowance for loan losses. Management monitors qualitative and quantitative trends in the loan portfolio, including changes in the levels of past due, internally classified and non-performing loans. Note 1 of the Notes to Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2014 describes the methodology used to determine the allowance for loan losses. A discussion of the factors driving changes in the amount of the allowance for loan losses is included herein under the heading “Asset Quality."

Goodwill

The excess purchase price over the fair value of net assets from acquisitions, or goodwill, is evaluated for impairment at least annually and on an interim basis if an event or circumstance indicates that it is likely impairment has occurred. In any given year, the Company may elect to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is in excess of its carrying value. If it is not more likely than not that the fair value of the reporting unit is in excess of the carrying value, or if the Company elects to bypass the qualitative assessment, a two-step quantitative impairment test is performed. In performing a quantitative test for impairment, the fair value of net assets is estimated based on an analysis of our market value, discounted cash flows and peer values. Determining the fair value of goodwill is considered a critical accounting estimate because of its sensitivity to market-based economics. In addition, any allocation of the fair value of goodwill to assets and liabilities requires significant management judgment and the use of subjective measurements. Variability in market conditions and key assumptions or subjective measurements used to estimate and allocate fair value are reasonably possible and could have a material impact on our consolidated financial statements or results of operations. Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2014 describes our accounting policy with regard to goodwill.

Our annual evaluation of goodwill for impairment is performed as of July 1st each year. Upon completion of the most recent evaluation, it was determined that the estimated fair value of net assets was greater than the carrying value of the Company. We will continue to monitor our performance and evaluate our goodwill for impairment annually or more frequently as needed.

Fair Values of Loans Acquired in Business Combinations

Loans acquired in business combinations are initially recorded at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows initially expected to be collected on the loans and discounting those cash flows at an appropriate market rate of interest. Going forward, the Company continues to evaluate reasonableness of expectations for the timing and the amount of cash to be collected. Subsequent decreases in expected cash flows may result in changes in the amortization or accretion of fair market value adjustments, and in some cases may result in the loan being considered impaired. For collateral dependent loans with deteriorated credit quality, the Company estimates the fair value of the underlying collateral of the loans. These values are discounted using market derived rates of return, with consideration given to the period of time and costs associated with the foreclosure and disposition of the collateral. Note 1 of the Notes to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2014 describes our accounting policy with regard to acquired loans.

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Results of Operations

The following discussion and analysis is intended to provide greater details of the results of our operations and financial condition.

Net Interest Income. Our net interest income on a fully taxable equivalent, or FTE, basis increased $1.3 million, or 1.9%, to $67.4 million during the three months ended September 30, 2015, as compared to $66.1 million for the same period in 2014, and $13.0 million, or 7.0%, to $199.2 million during the nine months ended September 30, 2015, as compared to $186.2 million for the same period in 2014. These increases were primarily attributable to growth in average interest earning assets as a result of the July 2014 acquisition of Mountain West Financial Corp, or Mountain West, in which we acquired cash and cash equivalents totaling $74 million, loans totaling $360 million and investment securities totaling $105 million. In addition,we experienced organic growth in total loans of approximately 6.6% from September 30, 2014 through September 30, 2015, which also positively impacted our quarter-to-date and year-to-date net FTE interest income.

Also positively impacting our net interest income during the three and nine months ended September 30, 2015, as compared to the same periods in the prior year, was interest accretion related to the fair valuation of acquired loans. Interest accretion related to the fair valuation of acquired loans was $1.4 million during the three months ended September 30, 2015, of which $307 thousand was the result of early loan payoffs, and $4.1 million during the nine months ended September 30, 2015, of which $1.1 million was the result of early loan payoffs. This compares to $1.4 million during the three and nine months ended September 30, 2014, of which $747 thousand was the result of early loan payoffs.

Despite increases in our net interest income, our net FTE interest margin ratio decreased 8 basis points to 3.47% for the three months ended September 30, 2015, as compared to 3.55% for the same period in 2014, and 9 basis points to 3.45% for the nine months ended September 30, 2015, as compared to 3.54% during the same period in 2014. Decreases in net FTE interest margin ratio during the three and nine months ended September 30, 2015, as compared to the same periods in 2014, were primarily due to lower yields earned on loans and investment securities, which were partially offset by increases in the average outstanding interest earning assets and reductions in funding costs. Exclusive of the fair value accretion resulting from the early payoff of acquired loans and recoveries of previously charged-off interest, our net interest margin ratio was 3.42% during the three months ended September 30, 2015, as compared to 3.47% for the same period in 2014, and 3.40% during the nine months ended September 30, 2015, as compared to 3.47% during the same period in 2014.

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The following tables present, for the periods indicated, condensed average balance sheet information, together with interest income and yields earned on average interest earning assets and interest expense and rates paid on average interest bearing liabilities.



Average Balance Sheets, Yields and Rates
(Dollars in thousands)	Three Months Ended September 30,
	2015							2014
	Average Balance		Interest			Average Rate		Average Balance		Interest			Average Rate
Interest earning assets:
Loans (1) (2)	$	5,141,484	$	62,577		4.83	%	$	4,751,928	$	61,445		5.13	%
Investment securities (2)	2,097,835		8,927			1.69		2,094,449		8,953			1.70
Interest bearing deposits in banks	471,682		342			0.29		548,794		374			0.27
Federal funds sold	2,876		4			0.55		1,909		3			0.62
Total interest earnings assets	7,713,877		71,850			3.70		7,397,080		70,775			3.80
Non-earning assets	781,559							753,324
Total assets	$	8,495,436						$	8,150,404
Interest bearing liabilities:
Demand deposits	$	2,086,112	$	528		0.10	%	$	2,100,931	$	532		0.10	%
Savings deposits	1,924,612		645			0.13		1,751,595		616			0.14
Time deposits	1,150,223		2,068			0.71		1,217,023		2,339			0.76
Repurchase agreements	433,007		55			0.05		439,739		52			0.05
Other borrowed funds	6		—			—		1,781		27			6.01
Long-term debt	43,200		544			5.00		36,886		482			5.18
Subordinated debentures held by subsidiary trusts	82,477		610			2.93		89,142		598			2.66
Total interest bearing liabilities	5,719,637		4,450			0.31		5,637,097		4,646			0.33
Non-interest bearing deposits	1,787,419							1,570,121
Other non-interest bearing liabilities	58,623							54,722
Stockholders’ equity	929,757							888,464
Total liabilities and stockholders’ equity	$	8,495,436						$	8,150,404
Net FTE interest income			67,400							66,129
Less FTE adjustments (2)			(1,070		)					(1,047		)
Net interest income from consolidated statements of income			$	66,330						$	65,082
Interest rate spread						3.39	%						3.47	%
Net FTE interest margin (3)						3.47	%						3.55	%
Cost of funds, including non-interest bearing demand deposits (4)						0.24	%						0.26	%


(1)	Average loan balances include non-accrual loans. Interest income on loans includes amortization of deferred loan fees net of deferred loan costs, which is not material.


(2)	Interest income and average rates for tax exempt loans and securities are presented on an FTE basis.


(3)	Net FTE interest margin during the period equals (i) the difference between annualized interest income on interest earning assets and the annualized interest expense on interest bearing liabilities, divided by (ii) average interest earning assets for the period.


(4)	Calculated by dividing total annualized interest on interest bearing liabilities by the sum of total interest bearing liabilities plus non-interest bearing deposits.

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Average Balance Sheets, Yields and Rates
(Dollars in thousands)	Nine Months Ended September 30,
	2015							2014
	Average Balance		Interest			Average Rate		Average Balance		Interest			Average Rate
Interest earning assets:
Loans (1) (2)	$	5,010,251	$	183,305		4.89	%	$	4,512,726	$	171,656		5.09	%
Investment securities (2)	2,236,581		28,209			1.69		2,098,125		27,341			1.74
Interest bearing deposits in banks	462,262		1,002			0.29		425,489		830			0.26
Federal funds sold	2,412		11			0.61		1,658		7			0.56
Total interest earnings assets	7,711,506		212,527			3.68		7,037,998		199,834			3.80
Non-earning assets	759,169							695,924
Total assets	$	8,470,675						$	7,733,922
Interest bearing liabilities:
Demand deposits	$	2,087,241	$	1,558		0.10	%	$	1,940,007	$	1,556		0.11	%
Savings deposits	1,894,132		1,897			0.13		1,681,782		1,810			0.14
Time deposits	1,181,931		6,334			0.72		1,179,735		6,872			0.78
Repurchase agreements	453,610		162			0.05		444,952		181			0.05
Other borrowed funds	5		—			—		475		27			7.60
Long-term debt	41,469		1,596			5.15		36,897		1,431			5.19
Subordinated debentures held by subsidiary trusts	82,477		1,800			2.92		84,723		1,778			2.81
Total interest bearing liabilities	5,740,865		13,347			0.31		5,368,571		13,655			0.34
Non-interest bearing deposits	1,750,152							1,473,003
Other non-interest bearing liabilities	60,149							49,879
Stockholders’ equity	919,509							842,469
Total liabilities and stockholders’ equity	$	8,470,675						$	7,733,922
Net FTE interest income			199,180							186,179
Less FTE adjustments (2)			(3,237		)					(3,234		)
Net interest income from consolidated statements of income			$	195,943						$	182,945
Interest rate spread						3.37	%						3.46	%
Net FTE interest margin (3)						3.45	%						3.54	%
Cost of funds, including non-interest bearing demand deposits (4)						0.24	%						0.27	%


(1)	Average loan balances include non-accrual loans. Interest income on loans includes amortization of deferred loan fees net of deferred loan costs, which is not material.


(2)	Interest income and average rates for tax exempt loans and securities are presented on an FTE basis.


(3)	Net FTE interest margin during the period equals (i) the difference between annualized interest income on interest earning assets and the annualized interest expense on interest bearing liabilities, divided by (ii) average interest earning assets for the period.


(4)	Calculated by dividing total annualized interest on interest bearing liabilities by the sum of total interest bearing liabilities plus non-interest bearing deposits.

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The table below sets forth, for the periods indicated, a summary of the changes in interest income and interest expense resulting from estimated changes in average asset and liability balances (volume) and estimated changes in average interest rates (rate). Changes which are not due solely to volume or rate have been allocated to these categories based on the respective percent changes in average volume and average rate as they compare to each other.



Analysis of Interest Changes Due to Volume and Rates
(Dollars in thousands)	Three Months Ended September 30, 2015 compared with Three Months Ended September 30, 2014									Nine Months Ended September 30, 2015 compared with Nine Months Ended September 30, 2014
	Volume			Rate			Net			Volume			Rate			Net
Interest earning assets:
Loans (1)	$	4,982		$	(3,850	)	$	1,132		$	12,547		$	(898	)	$	11,649
Investment securities (1)	14			(40		)	(26		)	1,196			(328		)	868
Interest bearing deposits in banks	(52		)	20			(32		)	48			124			172
Federal funds sold	2			(1		)	1			2			2			4
Total change	4,946			(3,871		)	1,075			13,793			(1,100		)	12,693
Interest bearing liabilities:
Demand deposits	(4		)	—			(4		)	78			(76		)	2
Savings deposits	60			(31		)	29			152			(65		)	87
Time deposits	(127		)	(144		)	(271		)	8			(546		)	(538		)
Repurchase agreements	(1		)	4			3			2			(21		)	(19		)
Other borrowed funds	(27		)	—			(27		)	(18		)	(9		)	(27		)
Long-term debt	82			(20		)	62			118			47			165
Subordinated debentures held by subsidiary trusts	(44		)	56			12			(31		)	53			22
Total change	(61		)	(135		)	(196		)	309			(617		)	(308		)
Increase (decrease) in FTE net interest income	$	5,007		$	(3,736	)	$	1,271		$	13,484		$	(483	)	$	13,001

(1)Interest income for tax exempt loans and securities are presented on a FTE basis.

Provision for Loan Losses. During the three months ended September 30, 2015, we recorded a provision for loan losses of $1.1 million, as compared to $261 thousand during the same period in 2014. For the nine months ended September 30, 2015, we recorded a provision for loan losses of $3.5 million, as compared to the reversal of provision for loan losses of $6.7 million during the same period in 2014. The increase in provision is reflective of loan growth, increases in specific reserves on impaired loans and lower levels of recoveries of previously charged-off loans. For information regarding our non-performing loans, see “Non-Performing Assets” included herein.

Non-interest Income. Our principal sources of non-interest income include other service charges, commissions and fees; income from the origination and sale of loans; wealth management revenues; and, service charges on deposit accounts. Non-interest income increased $1.1 million, or 3.8%, to $30.5 million for the three months ended September 30, 2015, as compared to $29.4 million for the same period in 2014, and $10.0 million, or 12.5%, to $90.0 million for the nine months ended September 30, 2015, as compared to $80.0 million during the same period in 2014. Significant components of these increases are discussed below.

Other service charges, commissions and fees primarily include debit and credit card interchange income, mortgage loan servicing fee income, insurance and other commissions and ATM service charge revenues. Other service charges, commissions and fees increased $637 thousand, or 6.1%, to $11.1 million during the three months ended September 30, 2015, as compared to $10.5 million for the same period in 2014, and $2.8 million, or 9.6%, to $32.1 million for the nine months ended September 30, 2015, as compared to $29.3 million during the same period in 2014. These increases were primarily due to additional interchange revenue resulting from higher debit and credit card transaction volumes.

Income from the origination and sale of loans increased $637 thousand, or 8.7%, to $8.0 million during the three months ended September 30, 2015, as compared to $7.3 million during the same period in 2014, and $4.3 million, or 23.4%, to $22.7 million during the nine months ended September 30, 2015, as compared to $18.4 million during the same period in 2014. During second quarter 2015, we sold $10.6 million of seasoned portfolio loans at an aggregate gain of $410 thousand. The remaining quarter-to-date and year-to-date increases in income from the origination and sale of loans, as compared to the same periods in 2014, were primarily the result of increased demand in our market areas for both refinancing loans and loans for home purchases.

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Our total mortgage loans production increased approximately 30% during the nine months ended September 30, 2015, as compared to the same period in 2014, with loans originated for home purchases accounting for approximately 66% of our mortgage loan production, as compared to approximately 76% during the same period in 2014.

Wealth management revenues are comprised principally of fees earned for management of trust assets and investment services revenues. Fees earned for management of trust assets are generally based on the market value of assets managed. Wealth management revenues increased $76 thousand, or 1.5%, to $5.2 million during the three months ended September 30, 2015, as compared to $5.2 million during the same period in 2014. Exclusive of one-time close-out fees of $407 thousand related to the settlement of three estates recognized during third quarter 2014, wealth management revenues increased $483 thousand, or 10.2%, to $5.2 million during the three months ended September 30, 2015, as compared to $4.8 million for the same period in the prior year, primarily due to the addition of new customers. Wealth management revenues increased $846 thousand, or 5.9%, to $15.1 million during the nine months ended September 30, 2015, as compared to $14.2 million during the same period in 2014, due to the combined impact of the addition of new wealth management customers and increases in the market values of assets under trust management.

Other income decreased $310 thousand, or 14.9%, to $1.8 million during the three months ended September 30, 2015, as compared to $2.1 million during the same period in 2014, primarily due to lower earnings on assets held under deferred compensation plans.

Other income increased $1.8 million, or 30.2%, to $7.7 million during the nine months ended September 30, 2015, as compared to $5.9 million during the same period in 2014. During second quarter 2015, we recorded a gain of $863 thousand on the sale of land, and during first quarter 2015, we reached a settlement on and reversed a $1.0 million accrual related to secondary investor claims assumed as part of the July 2014 acquisition of Mountain West.

Non-interest Expense. Non-interest expense increased $544 thousand, or 0.8%, to $65.5 million for the three months ended September 30, 2015, as compared to $65.0 million for the same period in 2014, and $11.9 million, or 6.8%, to $187.1 million during the nine months ended September 30, 2015, as compared to $175.2 million in the same period in 2014. Significant components of these increases are discussed below.

Salaries and wages expense decreased $454 thousand, or 1.8%, to $25.5 million during the three months ended September 30, 2015, as compared to $25.9 million during the same period in 2014, primarily due to a $1.3 million decrease in incentive compensation accruals, which were partially offset by higher salaries and wages expense.

Salaries and wages expense increased $4.1 million, or 5.6%, to $76.9 million during the nine months ended September 30, 2015, as compared to $72.8 million during the same period in 2014. Year-to-date increases in salaries and wages expense, as compared to the prior year, were primarily the result of increased personnel costs associated with the Mountain West acquisition in July 2014, inflationary wage increases and higher commissioned pay reflective of increased mortgage loan origination during the first nine months of 2015.

Employee benefits expense decreased $529 thousand, or 6.7%, to $7.3 million for the three months ended September 30, 2015, as compared to $7.8 million during the same period in 2014, due to lower earnings on assets held under deferred compensation plans. Employee benefits expense decreased $156 thousand, or 0.7%, to $23.2 million during the nine months ended September 30, 2015, as compared to $23.3 million during the same period in 2014. Decreases due to lower earnings on assets held under deferred compensation plans during the nine months ended September 30, 2015, as compared to the same period in 2014, were largely offset by increased benefits costs associated with the Mountain West acquisition.

Furniture and equipment expense increased $511 thousand, or 15.3%, to $3.8 million for the three months ended September 30, 2015, as compared to $3.3 million during the same period in 2014, and $1.6 million, or 17.0%, to $11.3 million during the nine months ended September 30, 2015, as compared to $9.7 million during the same period in the prior year. These increases were primarily due to additional software costs associated with the implementation of new systems placed into service during the last half of 2014 to assist in accounting for acquired loans, process mortgage loans and automate certain reconciliation functions.

Net OREO income increased to $720 thousand during the three months ended September 30, 2015, as compared to $58 thousand during the same period in 2014. For the nine months ended September 30, 2015, net OREO income increase $1.4 million to $1.6 million, as compared to $211 thousand in the same period in 2014. Quarter-to-date and year-to-date increases were primarily due to increases in net gains recognized on the sale of OREO properties. During the three and nine months ended September 30, 2015, we recorded net gains on the sale of OREO properties of $1.1 million and $2.9 million, respectively, as compared to net gains on the sale of OREO properties of $551 thousand and $1.3 million recorded during the same respective periods in 2014.

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Professional fees increased $683 thousand, or 55.4%, to $1.9 million during the three months ended September 30, 2015, as compared to $1.2 million during the same period in 2014, and $850 thousand, or 21.9%, to $4.7 million during the nine month ended September 30, 2015, as compared to $3.9 million during the same period in 2014. Quarter-over-quarter and year-over-year increases primarily relate to professional fees incurred in conjunction with identifying and executing strategies for revenue enhancement and changing trust data platforms.

Core deposit intangible amortization expense increased $154 thousand, or 22.4%, to $842 thousand during the three months ended September 30, 2015, as compared to $688 thousand during the same period in 2014, and $1.1 million, or 82.7%, to $2.6 million during the nine months ended September 30, 2015, as compared to $1.4 million during the same period in 2014. Increases in core deposit amortization expense were due to the amortization of core deposit intangible assets recorded in conjunction with the acquisitions of Absarokee in July 2015 and Mountain West in July 2014.

Other expense increased $245 thousand, or 2.0%, to $12.6 million during the three months ended September 30, 2015, as compared to $12.4 million during the same period in 2014, and $4.3 million, or 12.8%, to $38.0 million during the nine months ended September 30, 2015, as compared to $33.7 million for the same period in 2014. During third quarter 2015, we recorded write-downs aggregating $806 thousand in the fair value of two vacated bank buildings held for sale. In addition, during second quarter 2015 we recorded a one-time contract termination fee of $876 thousand related to a change in payment service provider. Also contributing to the year-over-year increase were fraud losses, which increased $505 thousand, or 53.3%, to $1.5 million during the nine months ended September 30, 2015, as compared to $946 thousand the same period in 2014 primarily due to unusually high fraudulent credit card activity during the first half of 2015. The remaining year-to-date increase in other expenses were primarily due to the additional operating costs associated with branches acquired in the July 2014 acquisition of Mountain West, increases in advertising costs due to fluctuations in the timing of advertising campaigns and higher travel and legal costs.

During the third quarters of 2015 and 2014, we recorded loss contingency expenses of $5.0 million and $4.0 million, respectively, related to a lender liability lawsuit that was settled on August 31, 2015. For additional information regarding this litigation, see "Note 12 - Commitments and Contingencies" in the accompany "Notes to Unaudited Consolidated Financial Statements" included in this report.

Acquisition expenses of $566 thousand and $629 thousand recorded during the three and nine months ended September 30, 2015, respectively, included legal and professional fees related to the Absarokee acquisition in July 2015. Non-core acquisition expenses of $1.0 million and $1.6 million recorded during the three and nine months ended September 30, 2014, respectively, included legal and professional fees, employee retention payments and travel expenses related to the Mountain West acquisition in July 2014. For additional information regarding acquisitions, see "Recent Developments" included herein and “Note 2 – Acquisitions” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report.

Income Tax Expense. Our effective federal income tax rate was 29.4% for the nine months ended September 30, 2015 and 30.6% for the nine months ended September 30, 2014. State income tax applies primarily to pretax earnings generated within Montana and South Dakota. Our effective state tax rate was 4.2% for the nine months ended June, 2015 and 2014. Decreases in effective federal income tax rates are primarily due to tax credits received on investments in low income housing projects during 2015 and the last half of 2014.

Financial Condition

Total assets decreased $5.4 million, or less than 1.0%, to $8,605 million as of September 30, 2015, from $8,610 million as of December 31, 2014. Absent meaningful deposit growth during the first nine months of 2015, loan growth was funded through available funds resulting in decreases in cash, interest bearing deposits in banks and investment securities from December 31, 2014 to September 30, 2015. Significant fluctuations in balance sheet accounts are discussed below.

Loans. Total loans increased $279 million, or 5.7%, to $5,176 million as of September 30, 2015, as compared to $4,897 million December 31, 2014. Approximately $37 million of the increase was attributable to the Absarokee acquisition. The most notable organic growth occurred in commercial, commercial real estate, indirect consumer and agricultural loans.

Continuing business expansion in our market areas and the movement of completed commercial construction projects from construction loans to permanent financing resulted in increases in the commercial and commercial real estate loan portfolios. Commercial loans increased $39 million, or 5.2%, to $779 million as of September 30, 2015, from $740 million as of December 31, 2014, with approximately $4 million of the increase attributable to the Absarokee acquisition. Commercial real estate loans increased $111 million, or 6.8%, to $1.8 billion as of September 30, 2015, from $1.6 billion as of December 31, 2014, with approximately $12 million of the increase attributable to the Absarokee acquisition.

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Indirect consumer loans grew organically $63 million, or 11.4%, to $616 million as of September 30, 2015, from $553 million as of December 31, 2014. Management attributes this increase to the combined impact of heightened consumer demand for recreational vehicles and increased dealer volume resulting from expansion efforts within our existing market areas.

Agricultural loans increased $30 million, or 24.0%, to $155 million as of September 30, 2015, from $125 million as of December 31, 2014, with approximately $7 million of the increase attributable to the Absarokee acquisition. Management attributes the remaining increase to seasonal increases in agricultural credit lines that typically occur during the second and third quarters of each year.

Non-performing Assets. Non-performing assets include non-accrual loans, loans contractually past due 90 days or more and still accruing interest and OREO. The following table sets forth information regarding non-performing assets as of the dates indicated:



Nonperforming Assets and Troubled Debt Restructurings
(Dollars in thousands)	September 30, 2015			June 30, 2015			March 31, 2015			December 31, 2014			September 30, 2014
Non-performing loans:
Non-accrual loans	$	66,359		$	70,848		$	73,941		$	62,182		$	71,915
Accruing loans past due 90 days or more	3,357			2,153			5,175			2,576			1,348

Total non-performing loans	69,716			73,001			79,116			64,758			73,263
OREO	8,031			11,773			15,134			13,554			18,496

Total non-performing assets	$	77,747		$	84,774		$	94,250		$	78,312		$	91,759

Troubled debt restructurings not included above	$	16,702		$	15,127		$	16,070		$	20,952		$	20,956

Non-performing loans to total loans	1.35		%	1.43		%	1.61		%	1.32		%	1.51		%
Non-performing assets to total loans and OREO	1.50		%	1.66		%	1.91		%	1.59		%	1.88		%
Non-performing assets to total assets	0.90		%	1.01		%	1.11		%	0.91		%	1.08		%

Non-performing loans. Non-performing loans include non-accrual loans and loans contractually past due 90 days or more. We monitor and evaluate collateral values on non-performing loans quarterly. Appraisals are required on all non-performing loans every 18-24 months, or sooner as conditions necessitate. We monitor real estate values by market for our larger market areas. Based on trends in real estate values, adjustments may be made to the appraised value based on time elapsed between the appraisal date and the impairment analysis or a new appraisal may be ordered. Appraised values in our smaller market areas may be adjusted based on trends identified through discussions with local realtors and appraisers. Appraisals are also adjusted for selling costs. The adjusted appraised value is then compared to the loan balance and any resulting shortfall is recorded in the allowance for loan losses as a specific valuation allowance. Overall increases in specific valuation allowances will result in higher provisions for loan losses. Provisions for loan losses are also impacted by changes in the historical or general valuation elements of the allowance for loan losses.

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The following table sets forth the allocation of our non-performing loans among our various loan categories as of the dates indicated:



Non-Performing Loans by Loan Type
(Dollars in thousands)	September 30, 2015		Percent of Total		December 31, 2014		Percent of Total
Real estate:
Commercial	$	23,237	33.4	%	$	27,700	42.9	%
Construction:			.
Land acquisition and development	9,146		13.1	%	8,252		12.7	%
Commercial	329		0.5	%	2,564		4.0	%
Residential	983		1.4	%	272		0.4	%
Total construction	10,458		15.0	%	11,088		17.1	%
Residential	3,332		4.8	%	4,554		7.0	%
Agricultural	6,792		9.7	%	6,842		10.6	%
Total real estate	43,819		62.9	%	50,184		77.5	%
Consumer	2,133		3.1	%	1,282		2.0	%
Commercial	22,722		32.6	%	12,846		19.8	%
Agricultural	731		1.0	%	446		0.7	%
Other	311		—	%	—		—	%
Total non-performing loans	$	69,716	100.0	%	$	64,758	100.0	%

Non-accrual loans. We generally place loans, excluding acquired credit impaired loans, on non-accrual when they become 90 days past due, unless they are well secured and in the process of collection. When a loan is placed on non-accrual status, any interest previously accrued but not collected is reversed from income. If all loans on non-accrual had been current in accordance with their original terms, gross income of approximately $2.3 million and $3.2 million would have been accrued for the nine months ended September 30, 2015 and 2014, respectively. Non-accrual loans increased $4 million, or 6.7%, to $66 million as of September 30, 2015, from $62 million as of December 31, 2014, primarily due to the placement of the loans of one commercial borrower on non-accrual status.

OREO. OREO consists of real property acquired through foreclosure on the collateral underlying defaulted loans. We initially record OREO at fair value less estimated selling costs. Any excess of loan carrying value over the fair value of the real estate acquired is recorded as a charge against the allowance for loan losses. Estimated losses that result from the ongoing periodic valuation of these properties are charged to earnings in the period in which they are identified. The fair values of OREO properties are estimated using appraisals and management estimates of current market conditions. OREO properties are appraised every 18-24 months unless deterioration in local market conditions indicates the need to obtain new appraisals sooner. OREO properties are evaluated by management quarterly to determine if additional write-downs are appropriate or necessary based on current market conditions. Quarterly evaluations include a review of the most recent appraisal of the property and reviews of recent appraisals and comparable sales data for similar properties in the same or adjacent market areas. Commercial and agricultural OREO properties are listed with unrelated third party professional real estate agents or brokers local to the areas where the marketed properties are located. Residential properties are typically listed with local realtors, after any redemption period has expired. We rely on these local real estate agents and/or brokers to list the properties on the local multiple listing system, to provide marketing materials and advertisements for the properties and to conduct open houses.

OREO decreased $6 million, or 40.7%, to $8 million as of September 30, 2015, from $14 million as of December 31, 2014. During the nine months ended September 30, 2015, we recorded OREO additions of $5 million and sold OREO with a book value of $11 million at a net gain of $2.9 million. As of September 30, 2015, the composition of OREO properties was 46% land and land development, 26% commercial, 23% residential real estate, 1% construction and 4% agricultural.

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Allowance for Loan Losses. The Company performs a quarterly assessment of the adequacy of its allowance for loan losses in accordance with generally accepted accounting principles. The methodology used to assess the adequacy is consistently applied to the Company's loan portfolio. The allowance for loan losses is established through a provision for loan losses based on our evaluation of known and inherent risk in our loan portfolio at each balance sheet date. In determining the allowance for loan losses, we estimate losses on specific loans, or groups of loans, where the probable loss can be identified and reasonably determined. The balance of the allowance for loan losses is based on internally assigned risk classifications of loans, historical loan loss rates, changes in the nature of the loan portfolio, overall portfolio quality, industry concentrations, delinquency trends, current economic factors and the estimated impact of current economic conditions on certain historical loan loss rates. See the discussion under “Critical Accounting Estimates and Significant Accounting Policies — Allowance for Loan Losses."

The allowance for loan losses is increased by provisions charged against earnings and net recoveries of charged-off loans and is reduced by negative provisions credited to earnings and net loan charge-offs. The allowance for loan losses consists of three elements:

(1)

Specific valuation allowances associated with impaired loans. Specific valuation allowances are determined based on assessment of the fair value of the collateral underlying the loans as determined through independent appraisals, the present value of future cash flows, observable market prices and any relevant qualitative or environmental factors impacting the loan. No specific valuation allowances are recorded for impaired loans that are adequately secured.

(2)

Historical valuation allowances based on loan loss experience for similar loans with similar characteristics and trends. Historical valuation allowances are determined by applying percentage loss factors to the credit exposures from outstanding loans. For commercial, agricultural and real estate loans, loss factors are applied based on the internal risk classifications of these loans. For consumer loans, loss factors are applied on a portfolio basis. For commercial, agriculture and real estate loans, loss factor percentages are based on a migration analysis of our historical loss experience, designed to account for credit deterioration. For consumer loans, loss factor percentages are based on a one-year loss history.


(3)	General valuation allowances determined based on changes in the nature of the loan portfolio, overall portfolio quality, industry concentrations, delinquency trends, general economic conditions and other qualitative risk factors both internal and external to us.

Based on the assessment of the adequacy of the allowance for loan losses, management records provisions for loan losses to maintain the allowance for loan losses at appropriate levels.

Loans acquired in business combinations are recorded at fair value with no allowance for loan losses on the date of acquisition. Subsequent to the acquisition date, an allowance for loan loss is recorded for the emergence of new probable and estimable losses on loans acquired without evidence of credit impairment. Loans acquired with evidence of credit impairment are regularly monitored and to the extent that the performance has deteriorated from management's expectations at the date of acquisition, an allowance for loan losses is established. As of September 30, 2015, management determined that an allowance for loan losses related to acquired loans of $344 thousand was required under generally accepted accounting principles.

Loans, or portions thereof, are charged-off against the allowance for loan losses when management believes that the collectability of the principal is unlikely, or, with respect to consumer installment loans, according to an established delinquency schedule. Generally, loans are charged-off when (1) there has been no material principal reduction within the previous 90 days and there is no pending sale of collateral or other assets, (2) there is no significant or pending event which will result in principal reduction within the upcoming 90 days, (3) it is clear that we will not be able to collect all or a portion of the loan, (4) payments on the loan are sporadic, will result in an excessive amortization or are not consistent with the collateral held and (5) foreclosure or repossession actions are pending. Loan charge-offs do not directly correspond with the receipt of independent appraisals or the use of observable market data if the collateral value is determined to be sufficient to repay the principal balance of the loan.

If the impaired loan is adequately collateralized, a specific valuation allowance is not recorded. As such, significant changes in impaired and non-performing loans do not necessarily correspond proportionally with changes in the specific valuation component of the allowance for loan losses. Additionally, management expects the timing of charge-offs will vary between quarters and will not necessarily correspond proportionally to changes in the allowance for loan losses or changes in non-performing or impaired loans due to timing differences among the initial identification of an impaired loan, recording of a specific valuation allowance for the impaired loan and any resulting charge-off of uncollectible principal.

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The following table sets forth information regarding our allowance for loan losses as of and for the periods indicated.



Allowance for Loan Losses
(Dollars in thousands)	Three Months Ended
	September 30,			June 30,			March 31,			December 31,			September 30,
	2015			2015			2015			2014			2014
Balance at beginning of period	$	76,552		$	75,336		$	74,200		$	74,231		$	78,266
Provision charged to operating expense	1,098			1,340			1,095			118			261
Charge offs:
Real estate
Commercial	120			47			109			485			41
Construction	2,028			—			30			108			20
Residential	71			510			45			30			84
Agricultural	—			53			2			1			2
Consumer	1,537			837			1,301			1,658			1,437
Commercial	791			61			374			22			4,678
Agricultural	—			—			—			—			—
Other	—			—			—			—			12
Total charge-offs	4,547			1,508			1,861			2,304			6,274
Recoveries:
Real estate
Commercial	387			293			512			446			181
Construction	—			49			316			736			728
Residential	—			80			154			124			88
Agricultural	—			3			10			—			2
Consumer	653			520			640			686			495
Commercial	113			438			270			162			484
Agricultural	—			1			—			1			—
Total recoveries	1,153			1,384			1,902			2,155			1,978
Net charge-offs	3,394			124			(41		)	149			4,296
Balance at end of period	$	74,256		$	76,552		$	75,336		$	74,200		$	74,231

Period end loans	$	5,176,480		$	5,103,946		$	4,927,306		$	4,897,443		$	4,854,382
Average loans	5,141,484			4,991,416			4,895,146			4,870,509			4,751,928
Net loans charged-off to average loans, annualized	0.26		%	0.01		%	—		%	0.01		%	0.36		%
Allowance to period end loans	1.43		%	1.50		%	1.53		%	1.52		%	1.53		%

Our allowance for loan losses as a percentage of period end loans declined to 1.43% as of September 30, 2015, as compared to 1.52% as of December 31, 2014, primarily due to loan growth, changes in loss factors and the acquisition of Absarokee loans, which were initially recorded at fair value with no carryover of the related allowance for loan losses. The decrease in our allowance for loan losses as a percentage of period end loans to 1.53% as of September 30, 2014, from 1.74% as of June 30, 2014,was due to the acquisition of Mountain West loans, which were initially recorded at fair value with no carryover of the related allowance for loan losses.

Although we have established our allowance for loan losses in accordance with accounting principles generally accepted in the United States and we believe that our allowance for loan losses is adequate to provide for known and inherent losses in the portfolio at all times, future provisions will be subject to on-going evaluations of the risks in the loan portfolio. If the economy declines or asset quality deteriorates, material additional provisions could be required.

Investment Securities. We manage our investment portfolio to obtain the highest yield possible, while meeting our risk tolerance and liquidity guidelines and satisfying the pledging requirements for deposits of state and political subdivisions and securities sold under repurchase agreements. Investment securities decreased $219 million, or 9.6%, to $2,068 million, or 24.0% of total assets, as of September 30, 2015, from $2,287 million, or 26.6% of total assets, as of December 31, 2014. During the first nine months of 2015, proceeds from maturities, calls and pay-downs of investment securities were used to fund loan growth.

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We evaluate our investment portfolio quarterly for other-than-temporary declines in the market value of individual investment securities. This evaluation includes monitoring credit ratings; market, industry and corporate news; volatility in market prices; and, determining whether the market value of a security has been below its cost for an extended period of time. As of September 30, 2015, we had investment securities with fair values aggregating $249 million that had been in a continuous loss position more than twelve months. Gross unrealized losses on these securities of $2 million as of September 30, 2015, were attributable to changes in interest rates. No impairment losses were recorded during the three and nine months ended September 30, 2015 and 2014.

Cash and Cash Equivalents. Cash and cash equivalents decreased $91 million, or 11.3%, to $708 million as of September 30, 2015, from $799 million as of December 31, 2014. During the first nine months of 2015, loan growth was funded through available funds resulting in decreases in cash and cash equivalents from December 31, 2014 to September 30, 2015. Remaining decreases in cash and cash equivalents occurred during the normal course of business and are not reflective of changes in business plan or strategy.

Goodwill. Goodwill decreased $1 million to $204 million as of September 30, 2015, from $205 million as of December 31, 2014. During third quarter 2015, we recorded goodwill of $34 thousand in conjunction with the Absarokee acquisition. This increase was offset by a $1 million decrease in recorded goodwill resulting from the finalization of the fair valuation of deferred tax assets acquired in the Mountain West acquisition.

Company-Owned Life Insurance. Company-owned life insurance increased $32 million, or 20.9%, to $186 million as of September 30, 2015, from $154 million as of December 31, 2014. This increase was due to the second quarter 2015 purchase of an additional $23 million of life insurance covering selected officers of FIB and increases in cash surrender value of existing policies.

Deferred Tax Asset/Liability. As of September 30, 2015, we had a net deferred tax liability of $13 million, as compared to a net deferred tax asset of $5 million as of December 31, 2014. The shift in deferred taxes from a net asset to a net liability was primarily due to decreases in deferred tax assets related to unrealized losses on available-for sale investment securities and the removal of deferred tax assets upon the disposal of real property acquired as part of the Mountain West acquisition. The shift in the deferred taxes from a net asset to a net liability was also impacted by decreases in deferred tax assets related to tax deductible goodwill from previous acquisitions.

Deposits. Our deposits consist of non-interest bearing and interest bearing demand, savings, individual retirement and time deposit accounts. Total deposits increased $30 million, or less than 1.0%, to $7,036 million as of September 30, 2015, from $7,006 million as of December 31, 2014. The following table summarizes our deposits as of the dates indicated:



Deposits
(Dollars in thousands)	September 30, 2015		Percent of Total		December 31, 2014		Percent of Total
Non-interest bearing demand	$	1,832,535	26.0	%	$	1,791,364	25.5	%
Interest bearing:
Demand	2,134,203		30.3		2,133,273		30.5
Savings	1,918,724		27.3		1,843,355		26.3
Time, $100 and over	496,539		7.1		520,125		7.4
Time, other (1)	653,793		9.3		718,095		10.2
Total interest bearing	5,203,259		74.0		5,214,848		74.5
Total deposits	$	7,035,794	100.0	%	$	7,006,212	100.0	%


(1)	Included in Time, other are Certificate of Deposit Account Registry Service, or CDAR, deposits of $33 million as of September 30, 2015 and $40 million as of December 31, 2014.

Securities Sold Under Repurchase Agreements. In addition to deposits, repurchase agreements with commercial depositors, which include municipalities, provide an additional source of funds. Under repurchase agreements, deposit balances are invested in short-term U.S. government agency securities overnight and are then repurchased the following day. All outstanding repurchase agreements are due in one day. Repurchase agreement balances decreased $65 million, or 12.9%, to $438 million as of September 30, 2015, from $502 million as of December 31, 2014, due to fluctuations in the liquidity of our customers.

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Long-Term Debt. Long-term debt increased $5 million, or 13.2%, to $43 million as of September 30, 2015, from $38 million as of December 31, 2014. On January 29, 2015, the Company borrowed $5 million on a 2.28% note payable maturing July 29, 2022, with interest payable monthly and principal due at maturity. The note is collateralized by the Company's equity interest in Universal Sub CDE, LLC, a community development entity owned 99.9% by the Company.

Accounts Payable and Accrued Expenses. Accounts payable and accrued expenses decreased $17 million, or 26.4%, to $49 million as of September 30, 2015, from $66 million as of December 31, 2014. This decrease is due to fluctuations in the timing of corporate income tax payments and the reclassification of deferred tax assets to current taxes payable.

Capital Resources and Liquidity Management

Stockholders’ equity is influenced primarily by earnings, dividends, sales and redemptions of common stock and changes in the unrealized holding gains or losses, net of taxes, on available-for-sale investment securities. Stockholders’ equity increased $30 million, or 3.3%, to $939 million as of September 30, 2015, from $909 million as of December 31, 2014, primarily due to the retention of earnings, which was partially offset by the redemption and retirement of Class A common shares.

During the nine months ended September 30, 2015, we repurchased and retired 765,875 shares of our Class A common stock in open market transactions at an aggregate purchase price of $20 million. The repurchases were made pursuant to a stock repurchase program approved by our Board of Directors. For additional information regarding the repurchase, see “Note 9 – Capital Stock” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report.

On July 2, 2013, the Board of Governors of the Federal Reserve Bank issued a final rule implementing a revised regulatory capital framework for U.S. banks in accordance with the Basel III international accord and satisfying related mandates under the Dodd-Frank Wall Street Reform and Consumer Protection Act. The revised regulatory capital framework ("Basel III ") includes a more stringent definition of capital and introduces a new common equity tier 1, or CET1, capital requirement; sets forth a comprehensive methodology for calculating risk-weighted assets, introduces a conservation buffer and sets out minimum capital ratios and overall capital adequacy standards. As a banking organization subject to the standardized approach, Basel III became effective for us on January 1, 2015. Certain deductions and adjustments to regulatory capital began to phase in starting January 1, 2015 and will be fully implemented on January 1, 2018. The capital conservation buffer phases in beginning January 1, 2016 and will be fully implemented on January 1, 2019.

As of September 30, 2015 and December 31, 2014, we had capital levels that, in all cases, exceeded the well-capitalized guidelines. For additional information regarding our capital levels, see “Note 11 – Regulatory Capital” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report.

Liquidity. Liquidity measures our ability to meet current and future cash flow needs on a timely basis and at a reasonable cost. We manage our liquidity position to meet the daily cash flow needs of customers, while maintaining an appropriate balance between assets and liabilities to meet the return on investment objectives of our shareholders. Our liquidity position is supported by management of liquid assets and liabilities and access to alternative sources of funds. Liquid assets include cash, interest bearing deposits in banks, federal funds sold, available-for-sale investment securities and maturing or prepaying balances in our held-to-maturity investment and loan portfolios. Liquid liabilities include core deposits, federal funds purchased, securities sold under repurchase agreements and borrowings. Other sources of liquidity include the sale of loans, the ability to acquire additional national market funds through non-core deposits, the issuance of additional collateralized borrowings such as FHLB advances, the issuance of debt securities, additional borrowings through the Federal Reserve’s discount window and the issuance of preferred or common securities.

Our short-term and long-term liquidity requirements are primarily to fund on-going operations, including payment of interest on deposits and debt, extensions of credit to borrowers, capital expenditures and shareholder dividends. These liquidity requirements are met primarily through cash flow from operations, redeployment of prepaying and maturing balances in our loan and investment portfolios, debt financing and increases in customer deposits. For additional information regarding our operating, investing and financing cash flows, see the unaudited “Consolidated Statements of Cash Flows,” included in Part I, Item 1.

As a holding company, we are a corporation separate and apart from the Bank and, therefore, we provide for our own liquidity. Our main sources of funding include management fees and dividends declared and paid by the Bank and access to capital markets. There are statutory, regulatory and debt covenant limitations that affect the ability of our subsidiary bank to pay dividends to us. Management believes that such limitations will not impact our ability to meet our ongoing short-term cash obligations.

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Management continuously monitors our liquidity position and adjustments are made to the balance between sources and uses of funds as deemed appropriate. Our management is not aware of any events that are reasonably likely to have a material adverse effect on our liquidity, capital resources or operations. In addition, our management is not aware of any regulatory recommendations regarding liquidity, which if implemented, would have a material adverse effect on us.

Recent Accounting Pronouncements

See “Note 17 – Recent Authoritative Accounting Guidance” in the accompanying “Notes to Unaudited Consolidated Financial Statements” included in this report for details of recently issued accounting pronouncements and their expected impact on our financial statements.

Item 3.

QUANTITATIVE AND QUALITATIVE DISCLOSURES

ABOUT MARKET RISK

As of September 30, 2015, there have been no material changes in the quantitative and qualitative information about market risk provided pursuant to Item 305 of Regulation S-K as presented in our Annual Report on Form 10-K for the year ended December 31, 2014.

Item 4.

CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our management is responsible for establishing and maintaining effective disclosure controls and procedures, as defined under Rules 13a-15(e) and 15d-15(e) of the Exchange Act. As of September 30, 2015, an evaluation was performed, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures as of September 30, 2015, were effective in ensuring that information required to be disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods required by the SEC’s rules and forms, and is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting for the quarter ended September 30, 2015, that have materially affected, or are reasonably likely to materially affect, such control.

Limitations on Controls and Procedures

The effectiveness of our disclosure controls and procedures and our internal control over financial reporting is subject to various inherent limitations, including cost limitations, judgments used in decision making, assumptions about the likelihood of future events, the soundness of our systems, the possibility of human error, and the risk of fraud. Moreover, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions and the risk that the degree of compliance with policies or procedures may deteriorate over time. Because of these limitations, any system of disclosure controls and procedures or internal control over financial reporting may not be successful in preventing all errors or fraud or in making all material information known in a timely manner to the appropriate levels of management.

PART II.

OTHER INFORMATION


Item 1.	Legal Proceedings

There have been no material changes in legal proceedings as described in our Annual Report on Form 10-K for the year ended December 31, 2014.

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Item 1A.	Risk Factors

There have been no material changes in risk factors described in our Annual Report on Form 10-K for the year ended December 31, 2014.


Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds

(a) There were no unregistered sales of equity securities during the three months ended September 30, 2015.

(b) Not applicable.

(c) There were no purchases made by or on behalf of us or any "affiliated purchasers" (as defined in Rule 10b-18(a)(3) under the Exchange Act), of our common stock during the three months ended September 30, 2015.



				Total Number of	Maximum Number
				Shares Purchased	of Shares That
	Total Number	Average		as Part of Publicly	May Yet Be
	of Shares	Price Paid		Announced Plans	Purchased Under the
Period	Purchased	Per Share		or Programs	Plans or Programs
July 2015	1,334	$	28.09	—	434,125
August 2015	58,542	26.06		58,542	375,583
September 2015	141,458	26.31		141,458	1,000,000
Total	201,334	$	26.25	200,000	1,000,000


Item 3.	Defaults upon Senior Securities

None.


Item 4.	Mine Safety Disclosures

Not applicable.


Item 5.	Other Information

Not applicable or required.

Item 6. Exhibits



Exhibit Number		Description

2.2		Agreement and Plan of Merger between First Interstate BancSystem, Inc. and Mountain West Financial Corp dated February 10, 2014 (incorporated herein reference to Exhibit 2.1 of the Company's Pre-Effective Amendment No. 1 to Registration Statement on Form S-4, No. 333-194050, dated April 2, 2014)

3.1		Amended and Restated Articles of Incorporation dated March 5, 2010 (incorporated herein by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K/A filed on March 10, 2010)

3.2		Second Amended and Restated Bylaws dated January 27, 2011 (incorporated herein by reference to Exhibit 3.8 of the Company’s Current Report on Form 8-K filed on February 3, 2011)

10.1		Credit Agreement Re: Subordinated Term Note dated as of January 10, 2008, between First Interstate BancSystem, Inc. and First Midwest Bank (incorporated herein by reference to Exhibit 10.24 of the Company’s Current Report on Form 8-K filed on January 16, 2008)

10.2		Lease Agreement between Billings 401 Joint Venture and First Interstate Bank Montana dated September 20, 1985 and addendum thereto (incorporated herein by reference to Exhibit 10.4 of the Company’s Post-Effective Amendment No. 3 to Registration Statement on Form S-1, No. 033-84540, filed on September 29, 1994)

10.3†		First Interstate BancSystem’s Deferred Compensation Plan dated December 1, 2006 (incorporated herein by reference to Exhibit 10.9 of the Company’s Pre-Effective Amendment No. 3 to Registration Statement on Form S-1, No. 333-164380, filed on March 23, 2010)

10.4†		First Amendment to the First Interstate BancSystem’s Deferred Compensation Plan dated October 24, 2008 (incorporated herein by reference to Exhibit 10.10 of the Company’s Pre-Effective Amendment No. 3 to Registration Statement on Form S-1, No. 333-164380, filed on March 23, 2010)

10.5†		2001 Stock Option Plan, as amended (incorporated herein by reference to Exhibit 4.12 of the Company’s Registration Statement on Form S-8, No. 333-106495, filed on June 25, 2003)

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Exhibit Number		Description

10.6†		Second Amendment to 2001 Stock Option Plan (incorporated herein by reference to Exhibit 10.6 of the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2010)

10.7†		First Interstate BancSystem, Inc. 2006 Equity Compensation Plan, amended and restated as of November 21, 2013 (incorporated herein by reference to Exhibit 4.4 of the Company's Registration Statement on Form S-8, No. 333-193543, filed January 24, 2014 )

10.8†		Form of First Interstate BancSystem, Inc. 2006 Equity Compensation Plan Restricted Stock Agreement (Performance-ROA) for Certain Executive Officers (incorporated herein by reference to Exhibit 10.8 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013)

10.9†		Form of First Interstate BancSystem, Inc. 2006 Equity Compensation Plan Restricted Stock Agreement (Performance-ROE) for Certain Executive Officers (incorporated herein by reference to Exhibit 10.9 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013)

10.10†		Form of First Interstate BancSystem, Inc. 2006 Equity Compensation Plan Restricted Stock Agreement (Performance) for Certain Executive Officers (incorporated herein by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on February 13, 2013)

10.11†		First Interstate BancSystem, Inc. 2015 Equity and Incentive Plan (incorporated herein by reference to Appendix A of the Company’s Proxy Statement on Schedule 14A for the 2015 Annual Meeting of Shareholders, filed on April 2, 2015).

10.12†*		Executive Employment Agreement between Kevin P. Riley and First Interstate BancSystem, Inc. dated September 23, 2015.

10.13		Trademark License Agreements between Wells Fargo & Company and First Interstate BancSystem, Inc. (incorporated herein by reference to Exhibit 10.11 of the Registration Statement on Form S-1, filed on April 22, 1997)

31.1*		Certification of Quarterly Report on Form 10-Q pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by Chief Executive Officer

31.2*		Certification of Quarterly Report on Form 10-Q pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 by Chief Financial Officer

32*		Certification of Quarterly Report on Form 10-Q pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101**		Interactive data file


†	Management contract or compensatory arrangement.


*	Filed herewith.


**	As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Sections 11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.



		FIRST INTERSTATE BANCSYSTEM, INC.

Date:	November 6, 2015	/S/ KEVIN P. RILEY
		Kevin P. Riley
		President and Chief Executive Officer

Date:	November 6, 2015	/S/ MARCY D. MUTCH
		Marcy D. Mutch
		Executive Vice President and Chief Financial Officer