Glacier Bancorp (GBCI) 10-Q 6 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 18, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	GLACIER BANCORP INC
Entity Central Index Key	868,671
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		76,168,388

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Assets
Cash on hand and in banks		$ 104,222	$ 117,137
Federal funds sold		1,400	6,080
Interest bearing cash deposits		45,239	70,036
Cash and cash equivalents		150,861	193,253
Investment securities, available-for-sale		2,604,625	2,610,760
Investment securities, held-to-maturity		691,663	702,072
Total investment securities		3,296,288	3,312,832
Loans held for sale		40,484	56,514
Loans receivable	[1]	5,197,193	5,078,681
Allowance for loan and lease losses		(130,071)	(129,697)
Loans receivable, net		5,067,122	4,948,984
Premises and equipment, net		192,951	194,030
Other real estate owned		22,085	26,815
Accrued interest receivable		47,363	44,524
Deferred tax asset		55,773	58,475
Core deposit intangible, net		13,758	14,555
Goodwill		140,638	140,638
Non-marketable equity securities		24,199	27,495
Other assets		69,220	71,117
Total assets		9,120,742	9,089,232
Liabilities
Non-interest bearing deposits		1,887,004	1,918,310
Interest bearing deposits		5,129,190	5,026,698
Securities sold under agreements to repurchase		445,960	423,414
Federal Home Loan Bank advances		313,969	394,131
Other borrowed funds		6,633	6,602
Subordinated debentures		125,884	125,848
Accrued interest payable		3,608	3,517
Other liabilities		114,814	114,062
Total liabilities		8,027,062	8,012,582
Stockholders' Equity
Preferred shares, $0.01 par value per share, 1,000,000 shares authorized, none issued or outstanding		0	0
Common stock, $0.01 par value per share, 117,187,500 shares authorized		762	761
Paid-in capital		736,664	736,368
Retained earnings - substantially restricted		350,933	337,532
Accumulated other comprehensive income		5,321	1,989
Total stockholders' equity		1,093,680	1,076,650
Total liabilities and stockholders' equity		$ 9,120,742	$ 9,089,232
Number of common stock shares issued and outstanding		76,168,388	76,086,288
[1]	Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015, respectively.

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Preferred shares, par value	$ 0.01	$ 0.01
Preferred shares, authorized	1,000,000	1,000,000
Preferred shares, issued	0	0
Preferred shares, outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	117,187,500	117,187,500

Unaudited Condensed Consolidat4

Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest Income
Investment securities	$ 23,883	$ 22,959
Residential real estate loans	8,285	7,761
Commercial loans	44,503	39,022
Consumer and other loans	7,710	7,744
Total interest income	84,381	77,486
Interest Expense
Deposits	4,795	4,147
Securities sold under agreements to repurchase	318	241
Federal Home Loan Bank advances	1,652	2,195
Other borrowed funds	18	27
Subordinated debentures	892	772
Total interest expense	7,675	7,382
Net Interest Income	76,706	70,104
Provision for loan losses	568	765
Net interest income after provision for loan losses	76,138	69,339
Non-Interest Income
Service charges and other fees	14,331	12,999
Miscellaneous loan fees and charges	1,021	1,157
Gain on sale of loans	5,992	5,430
Gain on sale of investments	108	5
Other income	2,800	3,102
Total non-interest income	24,252	22,693
Non-Interest Expense
Compensation and employee benefits	36,941	32,244
Occupancy and equipment	6,676	6,060
Advertising and promotions	2,125	1,927
Data processing	3,373	2,551
Other real estate owned	390	758
Regulatory assessments and insurance	1,508	1,305
Core deposit intangibles amortization	797	731
Other expenses	10,546	9,921
Total non-interest expense	62,356	55,497
Income Before Income Taxes	38,034	36,535
Federal and state income tax expense	9,352	8,865
Net Income	$ 28,682	$ 27,670
Basic earnings per share	$ 0.38	$ 0.37
Diluted earnings per share	0.38	0.37
Dividends declared per share	$ 0.20	$ 0.18
Average outstanding shares - basic	76,126,251	75,206,348
Average outstanding shares - diluted	76,173,417	75,244,959

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 28,682	$ 27,670
Other Comprehensive Income, Net of Tax
Unrealized gains on available-for-sale securities	13,598	5,181
Reclassification adjustment for gains included in net income	(61)	(4)
Net unrealized gains on available-for-sale securities	13,537	5,177
Tax effect	(5,244)	(1,979)
Net of tax amount	8,293	3,198
Unrealized losses on derivatives used for cash flow hedges	(9,928)	(5,993)
Reclassification adjustment for losses included in net income	1,829	1,251
Net unrealized losses on derivatives used for cash flow hedges	(8,099)	(4,742)
Tax effect	3,138	1,827
Net of tax amount	(4,961)	(2,915)
Total other comprehensive income, net of tax	3,332	283
Total Comprehensive Income	$ 32,014	$ 27,953

Unaudited Condensed Consolidat6

Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings Substantially Restricted	Accumulated Other Comprehensive Income
Balance, beginning, shares at Dec. 31, 2014		75,026,092
Balance, beginning at Dec. 31, 2014	$ 1,028,047	$ 750	$ 708,356	$ 301,197	$ 17,744
Net income	27,670			27,670
Comprehensive income, accumulated other comprehensive income	283				283
Comprehensive income, total	27,953
Cash dividends declared	(13,631)			(13,631)
Stock issuances under stock incentive plans, shares		60,294
Stock issuances under stock incentive plans, value	(289)	$ 1	(290)
Stock issued in connection with acquisitions, shares		443,644
Stock issued in connection with acquisitions, value	10,776	$ 4	10,772
Stock-based compensation and related taxes	668		668
Balance, ending, shares at Mar. 31, 2015		75,530,030
Balance, ending at Mar. 31, 2015	$ 1,053,524	$ 755	719,506	315,236	18,027
Balance, beginning, shares at Dec. 31, 2015	76,086,288	76,086,288
Balance, beginning at Dec. 31, 2015	$ 1,076,650	$ 761	736,368	337,532	1,989
Net income	28,682			28,682
Comprehensive income, accumulated other comprehensive income	3,332				3,332
Comprehensive income, total	32,014
Cash dividends declared	(15,281)			(15,281)
Stock issuances under stock incentive plans, shares		82,100
Stock issuances under stock incentive plans, value	0	$ 1	(1)
Stock-based compensation and related taxes	$ 297		297
Balance, ending, shares at Mar. 31, 2016	76,168,388	76,168,388
Balance, ending at Mar. 31, 2016	$ 1,093,680	$ 762	$ 736,664	$ 350,933	$ 5,321

Unaudited Condensed Consolidat7

Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash dividends declared per share	$ 0.20	$ 0.18
Retained Earnings Substantially Restricted
Cash dividends declared per share	$ 0.20	$ 0.18

Unaudited Condensed Consolidat8

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income	$ 28,682	$ 27,670
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	568	765
Net amortization of investment securities premiums and discounts	6,594	6,282
Loans held for sale originated or acquired	(179,471)	(192,332)
Proceeds from sales of loans held for sale	202,605	193,667
Gain on sale of loans	(5,992)	(5,430)
Gain on sale of investments	(108)	(5)
Stock-based compensation expense, net of tax benefits	43	347
Excess tax benefits from stock-based compensation	(20)	(102)
Depreciation of premises and equipment	3,730	3,206
Loss (gain) on sale of other real estate owned and write-downs, net	52	(2)
Amortization of core deposit intangibles	797	731
Net increase in accrued interest receivable	(2,839)	(1,871)
Net decrease in other assets	195	2,619
Net increase (decrease) in accrued interest payable	91	(393)
Net increase in other liabilities	2,803	2,944
Net cash provided by operating activities	57,730	38,096
Investing Activities
Sales of available-for-sale securities	20,539	35,558
Maturities, prepayments and calls of available-for-sale securities	156,779	161,179
Purchases of available-for-sale securities	(163,654)	(311,895)
Maturities, prepayments and calls of held-to-maturity securities	11,155	460
Purchases of held-to-maturity securities	(1,223)	(50,005)
Principal collected on loans	346,124	332,693
Loans originated or acquired	(465,644)	(454,511)
Net addition of premises and equipment and other real estate owned	(2,726)	(3,889)
Proceeds from sale of other real estate owned	4,457	3,245
Net proceeds from sale of non-marketable equity securities	3,297	514
Net cash received in acquisitions	0	19,712
Net cash used in investing activities	(90,896)	(266,939)
Financing Activities
Net increase (decrease) in deposits	71,186	(33,240)
Net increase in securities sold under agreements to repurchase	22,546	27,188
Net decrease in short-term Federal Home Loan Bank advances	(80,000)	0
Repayments of long-term Federal Home Loan Bank advances	(162)	(731)
Net increase (decrease) in other borrowed funds	67	(572)
Cash dividends paid	(22,883)	(22,557)
Excess tax benefits from stock-based compensation	20	102
Stock-based compensation activity	0	(290)
Net cash used in financing activities	(9,226)	(30,100)
Net decrease in cash and cash equivalents	(42,392)	(258,943)
Cash and cash equivalents at beginning of period	193,253	442,409
Cash and cash equivalents at end of period	150,861	183,466
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	7,584	7,775
Cash paid during the period for income taxes	0	0
Supplemental Disclosure of Non-Cash Investing Activities
Sale and refinancing of other real estate owned	474	256
Transfer of loans to other real estate owned	178	3,217
Dividend declared but not paid	15,281	13,631
Fair value of common stock shares issued	0	10,776
Cash consideration for outstanding shares	0	12,219
Fair value of assets acquired	0	174,637
Liabilities assumed	$ 0	$ 152,779

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Summary of Significant Accounting Policies	Nature of Operations and Summary of Significant Accounting Policies General Glacier Bancorp, Inc. (“Company”) is a Montana corporation headquartered in Kalispell, Montana. The Company provides a full range of banking services to individuals and businesses in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the Company’s financial condition as of March 31, 2016 , the results of operations and comprehensive income for the three month periods ended March 31, 2016 and 2015 , and changes in stockholders’ equity and cash flows for the three month periods ended March 31, 2016 and 2015 . The condensed consolidated statement of financial condition of the Company as of December 31, 2015 has been derived from the audited consolidated statements of the Company as of that date. The accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 . Operating results for the three months ended March 31, 2016 are not necessarily indicative of the results anticipated for the year ending December 31, 2016 . The Company is a defendant in legal proceedings arising in the normal course of business. In the opinion of management, the disposition of pending litigation will not have a material affect on the Company’s consolidated financial position, results of operations or liquidity. Material estimates that are particularly susceptible to significant change include: 1) the determination of the allowance for loan and lease losses (“ALLL” or “allowance”); 2) the valuation of investment securities; 3) the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans; and 4) the evaluation of goodwill impairment. For the determination of the ALLL and real estate valuation estimates, management obtains independent appraisals (new or updated) for significant items. Estimates relating to investment valuations are obtained from independent third parties. Estimates relating to the evaluation of goodwill for impairment are determined based on internal calculations using significant independent party inputs. Principles of Consolidation The consolidated financial statements of the Company include the parent holding company, the Bank and all variable interest entities (“VIE”) for which the Company has both the power to direct the VIE’s significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could potentially be significant to the VIE. The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. The Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment as the Bank 1) engages in similar bank business activity from which it earns revenues and incurs expenses; 2) the operating results of the Bank are regularly reviewed by the Chief Executive Officer (i.e., the chief operating decision maker) who makes decisions about resources to be allocated to the Bank; and 3) financial information is available for the Bank. All significant inter-company transactions have been eliminated in consolidation. In October 2015, the Company completed its acquisition of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado (collectively, “Cañon”). In February 2015, the Company completed its acquisition of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana (collectively, “CB”). The transactions were accounted for using the acquisition method, and their results of operations have been included in the Company’s consolidated financial statements as of the acquisition dates. In February 2015, the Financial Accounting Standards Board’s (“FASB”) amended consolidation guidance by modifying the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities and by changing how entities analyze related-party relationships and fee arrangements. As a result of this amendment, the Company determined it was no longer the primary beneficiary of its Low-Income Housing Tax Credit (“LIHTC”) partnerships and deconsolidated its LIHTC investments effective January 1, 2016. There was no material effect on the Company’s financial condition or results of operations upon adoption of this accounting guidance. Loans Receivable Loans that are intended to be held-to-maturity are reported at the unpaid principal balance less net charge-offs and adjusted for deferred fees and costs on originated loans and unamortized premiums or discounts on acquired loans. Fees and costs on originated loans and premiums or discounts on acquired loans are deferred and subsequently amortized or accreted as a yield adjustment over the expected life of the loan utilizing the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. When a loan is paid off prior to maturity, the remaining fees and costs on originated loans and premiums or discounts on acquired loans are immediately recognized into interest income. The Company’s loan segments, which are based on the purpose of the loan, include residential real estate, commercial, and consumer loans. The Company’s loan classes, a further disaggregation of segments, include residential real estate loans (residential real estate segment), commercial real estate and other commercial loans (commercial segment), and home equity and other consumer loans (consumer segment). Loans that are thirty days or more past due based on payments received and applied to the loan are considered delinquent. Loans are designated non-accrual and the accrual of interest is discontinued when the collection of the contractual principal or interest is unlikely. A loan is typically placed on non-accrual when principal or interest is due and has remained unpaid for ninety days or more. When a loan is placed on non-accrual status, interest previously accrued but not collected is reversed against current period interest income. Subsequent payments on non-accrual loans are applied to the outstanding principal balance if doubt remains as to the ultimate collectability of the loan. Interest accruals are not resumed on partially charged-off impaired loans. For other loans on nonaccrual, interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest. The Company considers impaired loans to be the primary credit quality indicator for monitoring the credit quality of the loan portfolio. Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and, therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring). Interest income on accruing impaired loans is recognized using the interest method. The Company measures impairment on a loan-by-loan basis in the same manner for each class within the loan portfolio. An insignificant delay or shortfall in the amounts of payments would not cause a loan or lease to be considered impaired. The Company determines the significance of payment delays and shortfalls on a case-by-case basis, taking into consideration all of the facts and circumstances surrounding the loan and the borrower, including the length and reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest due. A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company periodically enters into restructure agreements with borrowers whereby the loans were previously identified as TDRs. When such circumstances occur, the Company carefully evaluates the facts of the subsequent restructure to determine the appropriate accounting and under certain circumstances it may be acceptable not to account for the subsequently restructured loan as a TDR. When assessing whether a concession has been granted by the Company, any prior forgiveness on a cumulative basis is considered a continuing concession. A TDR loan is considered an impaired loan and a specific valuation allowance is established when the fair value of the collateral-dependent loan or present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate based on the original contractual rate) is lower than the carrying value of the impaired loan. The Company has made the following types of loan modifications, some of which were considered a TDR: • reduction of the stated interest rate for the remaining term of the debt; • extension of the maturity date(s) at a stated rate of interest lower than the current market rate for newly originated debt having similar risk characteristics; and • reduction of the face amount of the debt as stated in the debt agreements. The Company recognizes that while borrowers may experience deterioration in their financial condition, many continue to be creditworthy customers who have the willingness and capacity for debt repayment. In determining whether non-restructured or unimpaired loans issued to a single or related party group of borrowers should continue to accrue interest when the borrower has other loans that are impaired or are TDRs, the Company on a quarterly or more frequent basis performs an updated and comprehensive assessment of the willingness and capacity of the borrowers to timely and ultimately repay their total debt obligations, including contingent obligations. Such analysis takes into account current financial information about the borrowers and financially responsible guarantors, if any, including for example: • analysis of global, i.e., aggregate debt service for total debt obligations; • assessment of the value and security protection of collateral pledged using current market conditions and alternative market assumptions across a variety of potential future situations; and • loan structures and related covenants. For additional information relating to loans, see Note 3. Allowance for Loan and Lease Losses Based upon management’s analysis of the Company’s loan portfolio, the balance of the ALLL is an estimate of probable credit losses known and inherent within the Bank’s loan portfolio as of the date of the consolidated financial statements. The ALLL is analyzed at the loan class level and is maintained within a range of estimated losses. Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The determination of the ALLL and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses. The balance of the ALLL is highly dependent upon management’s evaluations of borrowers’ current and prospective performance, appraisals and other variables affecting the quality of the loan portfolio. Individually significant loans and major lending areas are reviewed periodically to determine potential problems at an early date. Changes in management’s estimates and assumptions are reasonably possible and may have a material impact upon the Company’s consolidated financial statements, results of operations or capital. Risk characteristics considered in the ALLL analysis applicable to each loan class within the Company's loan portfolio are as follows: Residential Real Estate. Residential real estate loans are secured by owner-occupied 1-4 family residences. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers. Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the property securing the loans and affect the borrowers' personal incomes. Mitigating risk factors for this loan class include a large number of borrowers, geographic dispersion of market areas and the loans are originated for relatively smaller amounts. Commercial Real Estate . Commercial real estate loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operation of the property securing the loan and/or the business conducted on the property securing the loan. Credit risk in these loans is impacted by the creditworthiness of a borrower, valuation of the property securing the loan and conditions within the local economies in the Company’s diverse, geographic market areas. Commercial . Commercial loans consist of loans to commercial customers for use in financing working capital needs, equipment purchases and business expansions. The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation. Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations across the Company’s diverse, geographic market areas. Home Equity . Home equity loans consist of junior lien mortgages and first and junior lien lines of credit (revolving open-end and amortizing closed-end) secured by owner-occupied 1-4 family residences. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers. Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the residential property securing the loans and affect the borrowers' personal incomes. Mitigating risk factors for this loan class are a large number of borrowers, geographic dispersion of market areas and the loans are originated for terms that range from 10 years to 20 years. Other Consumer . The other consumer loan portfolio consists of various short-term loans such as automobile loans and loans for other personal purposes. Repayment of these loans is primarily dependent on the personal income of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the Company’s diverse, geographic market area) and the creditworthiness of a borrower. The ALLL consists of a specific valuation allowance component and a general valuation allowance component. The specific component relates to loans that are determined to be impaired and individually evaluated for impairment. The Company measures impairment on a loan-by-loan basis based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except when it is determined that repayment of the loan is expected to be provided solely by the underlying collateral. For impairment based on expected future cash flows, the Company considers all information available as of a measurement date, including past events, current conditions, potential prepayments, and estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the loan. For alternative ranges of cash flows, the likelihood of the possible outcomes is considered in determining the best estimate of expected future cash flows. The effective interest rate for a loan restructured in a TDR is based on the original contractual rate. For collateral-dependent loans and real estate loans for which foreclosure or a deed-in-lieu of foreclosure is probable, impairment is measured by the fair value of the collateral, less estimated cost to sell. The fair value of the collateral is determined primarily based upon appraisal or evaluation of the underlying real property value. The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors. The historical loss experience is based on the previous twelve quarters loss experience by loan class adjusted for risk characteristics in the existing loan portfolio. The same trends and conditions are evaluated for each class within the loan portfolio; however, the risk characteristics are weighted separately at the individual class level based on the Company’s judgment and experience. The changes in trends and conditions evaluated for each class within the loan portfolio include the following: • Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses; • Changes in global, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments; • Changes in the nature and volume of the portfolio and in the terms of loans; • Changes in experience, ability, and depth of lending management and other relevant staff; • Changes in the volume and severity of past due and nonaccrual loans; • Changes in the quality of the Company’s loan review system; • Changes in the value of underlying collateral for collateral-dependent loans; • The existence and effect of any concentrations of credit, and changes in the level of such concentrations; and • The effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Company’s existing portfolio. The ALLL is increased by provisions for loan losses which are charged to expense. The portions of loan balances determined by management to be uncollectible are charged off as a reduction of the ALLL and recoveries of amounts previously charged off are credited as an increase to the ALLL. The Company’s charge-off policy is consistent with bank regulatory standards. Consumer loans generally are charged off when the loan becomes over 120 days delinquent. Real estate acquired as a result of foreclosure or by deed-in-lieu of foreclosure is classified as real estate owned until such time as it is sold. At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over from acquired banks. Subsequent to acquisition, an allowance will be recorded on the acquired loan portfolios for further credit deterioration, if any. Reclassifications Certain reclassifications have been made to the 2015 financial statements to conform to the 2016 presentation. Impact of Recent Authoritative Accounting Guidance The Accounting Standards Codification ™ (“ASC”) is FASB’s officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of the federal securities laws are also sources of authoritative GAAP for the Company as an SEC registrant. All other accounting literature is non-authoritative. The following paragraphs provide descriptions of recently adopted or newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations. In March 2016, FASB amended FASB ASC Topic 718, Compensation - Stock Compensation. The amendments in this Update address certain aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification of awards on the statement of cash flows. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2016. Early adoption is permitted in any interim or annual period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In February 2016, FASB amended FASB ASC Topic 842, Leases. The amendments in this Update address several aspects of lease accounting with the significant change being the recognition of lease assets and lease liabilities for leases previously classified as operating leases. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018 and early adoption is permitted. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In January 2016, FASB amended FASB ASC Topic 825, Financial Instruments. The amendments in this Update address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Early adoption is only permitted under certain circumstances outlined in the amendments. A reporting entity should apply the amendments by means of a cumulative-effect adjustment to the Company’s statement of financial condition as of the beginning of the reporting year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In September 2015, FASB amended FASB ASC Topic 805, Business Combinations. The amendments in this Update require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustments are necessary. The amendments in this Update 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. The amendments in this Update require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments should be applied prospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The Company has evaluated the impact of these amendments and determined there was not a material effect on the Company’s financial position or results of operations. In February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and end a deferral available for investment companies. The amendments modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities. Consolidation conclusions may change for entities that already are VIEs due to changes in how entities would analyze related-party relationships and fee arrangements. The amendments relax existing criteria for determining when fees paid to a decision maker or service provider do not represent a variable interest by focusing on whether those fees are “at market.” The amendments eliminate both the consolidation model specific to limited partnerships and the current presumption that a general partner controls a limited partnership. Application of the new amendments could result in some entities being deconsolidated or considered a VIE and subject to additional disclosures. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period with any adjustments reflected as of the beginning of the reporting year that includes the interim period. A reporting entity may apply the amendments using a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the reporting year of adoption or may apply the amendments retrospectively. The Company has evaluated the impact of these amendments and determined there was not a material effect on the Company’s financial position or results of operations. In May 2014, FASB amended FASB ASC Topic 606, Revenue from Contracts with Customers. The amendments clarify the principals for recognizing revenue and develop a common revenue standard among industries. The new guidance establishes the following core principal: 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 goods or services. Five steps are provided for a company or organization to follow to achieve such core principle. The new guidance also includes a cohesive set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standards Update No 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of the Company’s investment securities: March 31, 2016 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 45,957 18 (288 ) 45,687 U.S. government sponsored enterprises 68,100 673 — 68,773 State and local governments 870,239 36,720 (5,826 ) 901,133 Corporate bonds 443,632 738 (1,495 ) 442,875 Residential mortgage-backed securities 1,140,413 8,434 (2,690 ) 1,146,157 Total available-for-sale 2,568,341 46,583 (10,299 ) 2,604,625 Held-to-maturity State and local governments 691,663 33,081 (4,554 ) 720,190 Total held-to-maturity 691,663 33,081 (4,554 ) 720,190 Total investment securities $ 3,260,004 79,664 (14,853 ) 3,324,815 December 31, 2015 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 47,868 15 (432 ) 47,451 U.S. government sponsored enterprises 93,230 100 (163 ) 93,167 State and local governments 856,738 34,159 (5,878 ) 885,019 Corporate bonds 386,629 611 (3,077 ) 384,163 Residential mortgage-backed securities 1,203,548 6,180 (8,768 ) 1,200,960 Total available-for-sale 2,588,013 41,065 (18,318 ) 2,610,760 Held-to-maturity State and local governments 702,072 31,863 (4,422 ) 729,513 Total held-to-maturity 702,072 31,863 (4,422 ) 729,513 Total investment securities $ 3,290,085 72,928 (22,740 ) 3,340,273 The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at March 31, 2016 . Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties. March 31, 2016 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 150,150 150,764 — — Due after one year through five years 503,233 503,879 — — Due after five years through ten years 144,750 149,613 28,545 29,370 Due after ten years 629,795 654,212 663,118 690,820 1,427,928 1,458,468 691,663 720,190 Residential mortgage-backed securities 1 1,140,413 1,146,157 — — Total $ 2,568,341 2,604,625 691,663 720,190 __________ 1 Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds. Proceeds from sales and calls of investment securities and the associated gains and losses that have been included in earnings are listed below: Three Months ended (Dollars in thousands) March 31, March 31, Available-for-sale Proceeds from sales and calls of investment securities $ 58,623 62,703 Gross realized gains 1 800 39 Gross realized losses 1 (739 ) (35 ) Held-to-maturity Proceeds from calls of investment securities 11,155 460 Gross realized gains 1 47 1 Gross realized losses 1 — — __________ 1 The gain or loss on the sale or call of each investment security is determined by the specific identification method. Investment securities with an unrealized loss position are summarized as follows: March 31, 2016 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale U.S. government and federal agency $ 2,291 (5 ) 39,478 (283 ) 41,769 (288 ) State and local governments 50,820 (444 ) 145,853 (5,382 ) 196,673 (5,826 ) Corporate bonds 208,048 (1,227 ) 33,786 (268 ) 241,834 (1,495 ) Residential mortgage-backed securities 259,495 (1,655 ) 65,081 (1,035 ) 324,576 (2,690 ) Total available-for-sale $ 520,654 (3,331 ) 284,198 (6,968 ) 804,852 (10,299 ) Held-to-maturity State and local governments $ 16,230 (209 ) 108,674 (4,345 ) 124,904 (4,554 ) Total held-to-maturity $ 16,230 (209 ) 108,674 (4,345 ) 124,904 (4,554 ) December 31, 2015 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale U.S. government and federal agency $ 42,493 (432 ) 2 — 42,495 (432 ) U.S. government sponsored enterprises 60,010 (163 ) — — 60,010 (163 ) State and local governments 102,422 (1,629 ) 115,943 (4,249 ) 218,365 (5,878 ) Corporate bonds 228,258 (1,812 ) 13,962 (1,265 ) 242,220 (3,077 ) Residential mortgage-backed securities 730,412 (7,226 ) 53,021 (1,542 ) 783,433 (8,768 ) Total available-for-sale $ 1,163,595 (11,262 ) 182,928 (7,056 ) 1,346,523 (18,318 ) Held-to-maturity State and local governments $ 42,322 (594 ) 81,709 (3,828 ) 124,031 (4,422 ) Total held-to-maturity $ 42,322 (594 ) 81,709 (3,828 ) 124,031 (4,422 ) Based on an analysis of its investment securities with unrealized losses as of March 31, 2016 and December 31, 2015 , the Company determined that none of such securities had other-than-temporary impairment and the unrealized losses were primarily the result of interest rate changes and market spreads subsequent to acquisition. The fair value of the investment securities is expected to recover as payments are received and the securities approach maturity. At March 31, 2016 , management determined that it did not intend to sell investment securities with unrealized losses, and there was no expected requirement to sell any of its investment securities with unrealized losses before recovery of their amortized cost.

Loans Receivable, Net

Loans Receivable, Net	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Loans Receivable, Net	Loans Receivable, Net The Company’s loan portfolio is comprised of three segments: residential real estate, commercial, and consumer and other loans. The loan segments are further disaggregated into the following classes: residential real estate, commercial real estate, other commercial, home equity and other consumer loans. The following table presents loans receivable for each portfolio class of loans: (Dollars in thousands) March 31, December 31, Residential real estate loans $ 685,026 688,912 Commercial loans Real estate 2,680,691 2,633,953 Other commercial 1,172,956 1,099,564 Total 3,853,647 3,733,517 Consumer and other loans Home equity 423,895 420,901 Other consumer 234,625 235,351 Total 658,520 656,252 Loans receivable 1 5,197,193 5,078,681 Allowance for loan and lease losses (130,071 ) (129,697 ) Loans receivable, net $ 5,067,122 4,948,984 Weighted-average interest rate on loans (tax-equivalent) 4.81 % 4.84 % __________ 1 Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015 , respectively. The following tables summarize the activity in the ALLL by portfolio segment: Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,697 14,427 67,877 32,525 8,998 5,870 Provision for loan losses 568 (1,149 ) (873 ) 3,720 (793 ) (337 ) Charge-offs (1,163 ) (100 ) (253 ) (324 ) (229 ) (257 ) Recoveries 969 18 295 133 173 350 Balance at end of period $ 130,071 13,196 67,046 36,054 8,149 5,626 Three Months ended March 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,753 14,680 67,799 30,891 9,963 6,420 Provision for loan losses 765 440 (286 ) 1,112 (459 ) (42 ) Charge-offs (1,297 ) (14 ) (445 ) (694 ) (31 ) (113 ) Recoveries 635 25 259 206 46 99 Balance at end of period $ 129,856 15,131 67,327 31,515 9,519 6,364 The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment: March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Allowance for loan and lease losses Individually evaluated for impairment $ 8,440 597 914 6,442 190 297 Collectively evaluated for impairment 121,631 12,599 66,132 29,612 7,959 5,329 Total allowance for loan and lease losses $ 130,071 13,196 67,046 36,054 8,149 5,626 Loans receivable Individually evaluated for impairment $ 140,866 21,041 81,840 27,889 6,557 3,539 Collectively evaluated for impairment 5,056,327 663,985 2,598,851 1,145,067 417,338 231,086 Total loans receivable $ 5,197,193 685,026 2,680,691 1,172,956 423,895 234,625 December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Allowance for loan and lease losses Individually evaluated for impairment $ 8,124 782 1,629 5,277 64 372 Collectively evaluated for impairment 121,573 13,645 66,248 27,248 8,934 5,498 Total allowance for loan and lease losses $ 129,697 14,427 67,877 32,525 8,998 5,870 Loans receivable Individually evaluated for impairment $ 140,773 20,767 85,845 23,874 6,493 3,794 Collectively evaluated for impairment 4,937,908 668,145 2,548,108 1,075,690 414,408 231,557 Total loans receivable $ 5,078,681 688,912 2,633,953 1,099,564 420,901 235,351 Substantially all of the Company’s loans receivable are with customers in the Company’s geographic market areas. Although the Company has a diversified loan portfolio, a substantial portion of its customers’ ability to honor their obligations is dependent upon the economic performance in the Company’s market areas. The following tables disclose information related to impaired loans by portfolio segment: At or for the Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 31,631 7,501 10,077 12,150 456 1,447 Unpaid principal balance 32,794 8,364 10,094 12,266 590 1,480 Specific valuation allowance 8,440 597 914 6,442 190 297 Average balance 33,157 7,877 11,316 12,036 279 1,649 Loans without a specific valuation allowance Recorded balance $ 109,235 13,540 71,763 15,739 6,101 2,092 Unpaid principal balance 136,388 15,042 92,608 19,657 6,882 2,199 Average balance 107,662 13,027 72,527 13,845 6,246 2,017 Total Recorded balance $ 140,866 21,041 81,840 27,889 6,557 3,539 Unpaid principal balance 169,182 23,406 102,702 31,923 7,472 3,679 Specific valuation allowance 8,440 597 914 6,442 190 297 Average balance 140,819 20,904 83,843 25,881 6,525 3,666 At or for the Year ended December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 34,683 8,253 12,554 11,923 102 1,851 Unpaid principal balance 36,157 9,198 12,581 12,335 109 1,934 Specific valuation allowance 8,124 782 1,629 5,277 64 372 Average balance 36,176 6,393 15,827 11,768 426 1,762 Loans without a specific valuation allowance Recorded balance $ 106,090 12,514 73,291 11,951 6,391 1,943 Unpaid principal balance 132,718 13,969 94,028 15,539 7,153 2,029 Average balance 116,356 13,615 78,684 15,479 6,350 2,228 Total Recorded balance $ 140,773 20,767 85,845 23,874 6,493 3,794 Unpaid principal balance 168,875 23,167 106,609 27,874 7,262 3,963 Specific valuation allowance 8,124 782 1,629 5,277 64 372 Average balance 152,532 20,008 94,511 27,247 6,776 3,990 Interest income recognized on impaired loans for the three months ended March 31, 2016 and 2015 was not significant. The following tables present an aging analysis of the recorded investment in loans by portfolio segment: March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 20,663 3,365 6,644 7,454 1,930 1,270 Accruing loans 60-89 days past due 3,333 110 1,268 1,106 739 110 Accruing loans 90 days or more past due 4,615 833 1,630 2,007 107 38 Non-accrual loans 53,523 7,319 29,747 9,799 5,998 660 Total past due and non-accrual loans 82,134 11,627 39,289 20,366 8,774 2,078 Current loans receivable 5,115,059 673,399 2,641,402 1,152,590 415,121 232,547 Total loans receivable $ 5,197,193 685,026 2,680,691 1,172,956 423,895 234,625 December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 15,801 4,895 4,393 3,564 1,601 1,348 Accruing loans 60-89 days past due 3,612 961 1,841 286 280 244 Accruing loans 90 days or more past due 2,131 — 231 1,820 15 65 Non-accrual loans 51,133 8,073 28,819 7,691 6,022 528 Total past due and non-accrual loans 72,677 13,929 35,284 13,361 7,918 2,185 Current loans receivable 5,006,004 674,983 2,598,669 1,086,203 412,983 233,166 Total loans receivable $ 5,078,681 688,912 2,633,953 1,099,564 420,901 235,351 The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented: Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Commercial Other Home Other TDRs that occurred during the period Number of loans 3 — 1 1 1 — Pre-modification recorded balance $ 8,959 — 56 8,755 148 — Post-modification recorded balance $ 8,959 — 56 8,755 148 — TDRs that subsequently defaulted Number of loans — — — — — — Recorded balance $ — — — — — — Three Months ended March 31, 2015 (Dollars in thousands) Total Residential Commercial Other Home Other TDRs that occurred during the period Number of loans 5 — 2 3 — — Pre-modification recorded balance $ 3,085 — 2,182 903 — — Post-modification recorded balance $ 3,085 — 2,182 903 — — TDRs that subsequently defaulted Number of loans 6 — — 3 2 1 Recorded balance $ 174 — — 57 116 1 The modifications for the TDRs that occurred during the three months ended March 31, 2016 and 2015 included one or a combination of the following: an extension of the maturity date, a reduction of the interest rate or a reduction in the principal amount. In addition to the TDRs that occurred during the period provided in the preceding tables, the Company had TDRs with pre-modification loan balances of $210,000 and $3,595,000 for the three months ended March 31, 2016 and 2015 , respectively, for which other real estate owned (“OREO”) was received in full or partial satisfaction of the loans. The majority of such TDRs were in residential real estate and commercial real estate for the three months ended March 31, 2016 and 2015 , respectively. At March 31, 2016 and December 31, 2015 , the Company had $3,531,000 and $3,253,000 , respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At March 31, 2016 and December 31, 2015 , the Company had $1,995,000 and $1,496,000 , respectively, of OREO secured by residential real estate properties.

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The following schedule discloses the changes in the carrying value of goodwill: Three Months ended (Dollars in thousands) March 31, March 31, Net carrying value at beginning of period $ 140,638 129,706 Acquisitions — 1,137 Net carrying value at end of period $ 140,638 130,843 The gross carrying value of goodwill and the accumulated impairment charge consists of the following: (Dollars in thousands) March 31, December 31, Gross carrying value $ 180,797 180,797 Accumulated impairment charge 1 (40,159 ) (40,159 ) Net carrying value $ 140,638 140,638 __________ 1 A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide. The Company performed its annual goodwill impairment test during the third quarter of 2015 and determined the fair value of the aggregated reporting units exceeded the carrying value, such that the Company’s goodwill was not considered impaired. Changes in the economic environment, operations of the aggregated reporting units, or other factors could result in the decline in the fair value of the aggregated reporting units which could result in a goodwill impairment in the future.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Variable Interest Entities	Variable Interest Entities A VIE is a partnership, limited liability company, trust or other legal entity that meets one of the following criteria: 1) the entity’s equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties; 2) the holders of the equity investment at risk, as a group, lack the characteristics of a controlling financial interest; and 3) the voting rights of some holders of the equity investment at risk are disproportionate to their obligation to absorb losses or receive returns, and substantially all of the activities are conducted on behalf of the holder of equity investment at risk with disproportionately few voting rights. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary, which is the party involved with the VIE that has both: 1) the power to direct the activities of the VIE that most significantly affect the VIE’s economic performance; and 2) the obligation to absorb the losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The Company’s VIEs are regularly monitored to determine if any reconsideration events have occurred that could cause the primary beneficiary status to change. A previously unconsolidated VIE is consolidated when the Company becomes the primary beneficiary. A previously consolidated VIE is deconsolidated when the Company ceases to be the primary beneficiary or the entity is no longer a VIE. In February 2015, FASB amended consolidation guidance by modifying the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities and by changing how entities analyze related-party relationships and fee arrangements. As a result of this amendment, the Company determined it was no longer the primary beneficiary of its LIHTC partnerships and deconsolidated its LIHTC investments effective January 1, 2016. Due to this reevaluation event, the Company determined its LIHTC investments would qualify for the proportional amortization method and elected to adopt this accounting method. The proportional amortization method allows for the amortization of LIHTC investments to be presented as a component of income taxes. Once elected, the proportional amortization method is required for all eligible LIHTC investments. Consolidated Variable Interest Entities The Company has equity investments in Certified Development Entities (“CDE”) which have received allocations of New Markets Tax Credits (“NMTC”). The NMTC program provides federal tax incentives to investors to make investments in distressed communities and promotes economic improvements through the development of successful businesses in these communities. The NMTC is available to investors over a seven -year period and is subject to recapture if certain events occur during such period. The maximum exposure to loss in the CDEs is the amount of equity invested and credit extended by the Company. However, the Company has credit protection in the form of indemnification agreements, guarantees, and collateral arrangements. The Company has evaluated the variable interests held by the Company in each CDE (NMTC) investment and determined the Company does not individually meet the characteristics of a primary beneficiary; however, the related-party group does meet the criteria as a group and substantially all of the activities of the CDEs either involve or are conducted on behalf of the Company. As a result, the Company is the primary beneficiary of the CDEs and their assets, liabilities, and results of operations are included in the Company’s consolidated financial statements. The primary activities of the CDEs are recognized in commercial loans interest income and other borrowed funds interest expense on the Company’s statements of operations and the federal income tax credit allocations from the investments are recognized in the Company’s statements of operations as a component of income tax expense. Such related cash flows are recognized in loans originated, principal collected on loans and change in other borrowed funds. The following table summarizes the carrying amounts of the consolidated VIEs’ assets and liabilities included in the Company’s statements of financial condition and are adjusted for intercompany eliminations. All assets presented can be used only to settle obligations of the consolidated VIEs and all liabilities presented consist of liabilities for which creditors and other beneficial interest holders therein have no recourse to the general credit of the Company. (Dollars in thousands) March 31, December 31, Assets Loans receivable $ 57,228 57,126 Premises and equipment, net — 13,503 Accrued interest receivable 206 117 Other assets 1,029 1,429 Total assets $ 58,463 72,175 Liabilities Other borrowed funds $ 4,555 6,195 Accrued interest payable 4 9 Other liabilities 145 139 Total liabilities $ 4,704 6,343 Unconsolidated Variable Interest Entities The Company has equity investments in LIHTC partnerships with carrying values of $4,579,000 as of March 31, 2016 . The LIHTCs are indirect federal subsidies to finance low-income housing and are used in connection with both newly constructed and renovated residential rental buildings. Once a project is placed in service, it is generally eligible for the tax credit every year for ten years. To continue generating the tax credit and to avoid tax credit recapture, a LIHTC building must satisfy specific low-income housing compliance rules for a full fifteen -year period. The maximum exposure to loss in the VIEs is the amount of equity invested and credit extended by the Company. However, the Company has credit protection in the form of indemnification agreements, guarantees, and collateral arrangements. The Company has evaluated the variable interests held by the Company in each LIHTC investment and determined that the Company does not have controlling financial interests in such investments, and is not the primary beneficiary. The Company reports the investments in the unconsolidated LIHTCs as other assets on the Company’s statements of financial condition. Total unfunded contingent commitments related to the Company’s LIHTC investments totaled $4,536,000 at March 31, 2016 . The Company expects to fulfill these commitments during 2017 . There were no impairment losses on the Company’s LIHTC investments during the three months ended March 31, 2016 . The following table summarizes the amortization expense and the amount of tax credits and other tax benefits recognized for qualified affordable housing project investments during the three months ended March 31, 2016 and 2015 . Amortization expense is recognized as a component of income tax expense. Three Months ended (Dollars in thousands) March 31, March 31, Amortization expense $ 255 252 Tax credits and other tax benefits recognized 392 391 The Company also owns the following trust subsidiaries, each of which issued trust preferred securities as Tier 1 capital instruments: Glacier Capital Trust II, Glacier Capital Trust III, Glacier Capital Trust IV, Citizens (ID) Statutory Trust I, Bank of the San Juans Bancorporation Trust I, First Company Statutory Trust 2001, and First Company Statutory Trust 2003. The trust subsidiaries have no assets, operations, revenues or cash flows other than those related to the issuance, administration and repayment of the securities held by third parties. The trust subsidiaries are not included in the Company’s consolidated financial statements because the sole asset of each trust subsidiary is a receivable from the Company, even though the Company owns all of the voting equity shares of the trust subsidiaries, has fully guaranteed the obligations of the trust subsidiaries and may have the right to redeem the third party securities under certain circumstances. The Company reports the trust preferred securities issued to the trust subsidiaries as subordinated debentures on the Company’s statements of financial condition.

Securities Sold Under Agreement

Securities Sold Under Agreements to Repurchase	3 Months Ended
	Mar. 31, 2016
Transfers and Servicing [Abstract]
Securities Sold Under Agreements to Repurchase	Securities Sold Under Agreements to Repurchase The Company’s securities sold under agreements to repurchase (“repurchase agreements”) totaled $445,960,000 and $423,414,000 at March 31, 2016 and December 31, 2015 , respectively, and are secured by investment securities with carrying values of $397,148,000 and $446,838,000 , respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and are held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate. The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral: March 31, 2016 Remaining Contractual Maturity of the Agreements (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Residential mortgage-backed securities $ 443,913 2,047 445,960 December 31, 2015 Remaining Contractual Maturity of the Agreements (Dollars in thousands) Overnight and Continuous Up to 30 Days Total U.S. government sponsored enterprises $ 12,507 — 12,507 Residential mortgage-backed securities 408,460 2,447 410,907 $ 420,967 2,447 423,414

Derivatives and Hedging Activit

Derivatives and Hedging Activities	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities As of March 31, 2016 , the Company’s interest rate swap derivative financial instruments were designated as cash flow hedges and are summarized as follows: (Dollars in thousands) Forecasted Notional Amount Variable Interest Rate 1 Fixed Interest Rate 1 Payment Term Interest rate swap $ 160,000 3 month LIBOR 3.378 % Oct. 21, 2014 - Oct. 21, 2021 Interest rate swap 100,000 3 month LIBOR 2.498 % Nov. 30, 2015 - Nov. 30, 2022 __________ 1 The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate. The hedging strategy converts the LIBOR-based variable interest rate on borrowings to a fixed interest rate, thereby protecting the Company from interest rate variability. The interest rate swaps with the $160,000,000 and $100,000,000 notional amounts began their payment terms in October 2014 and November 2015, respectively. The Company designated wholesale deposits as the cash flow hedge and these deposits were determined to be fully effective during the current and prior year. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the three months ended March 31, 2016 and 2015 . Therefore, the aggregate fair value of the interest rate swaps was recorded in other liabilities with changes recorded in other comprehensive income (“OCI”). The Company expects the hedges to remain highly effective during the remaining terms of the interest rate swaps. Interest expense recorded on the interest rate swaps totaled $1,998,000 and $1,351,000 during 2016 and 2015 , respectively, and is reported as a component of interest expense on deposits. Unless the interest rate swaps are terminated during the next year, the Company expects $7,903,000 of the unrealized loss reported in other comprehensive income at March 31, 2016 to be reclassified to interest expense during the next twelve months. The following table presents the pre-tax gains or losses recorded in accumulated other comprehensive income and the Company’s statements of operations relating to the interest rate swap derivative financial instruments: Three Months ended (Dollars in thousands) March 31, March 31, Interest rate swaps Amount of loss recognized in OCI (effective portion) $ (9,928 ) (5,993 ) Amount of loss reclassified from OCI to interest expense (1,829 ) (1,251 ) Amount of loss recognized in other non-interest expense (ineffective portion) — — The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities. There were no interest rate swap derivative assets at the dates presented. March 31, 2016 December 31, 2015 (Dollars in thousands) Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statements of Financial Position Net Amounts of Liabilities Presented in the Statements of Financial Position Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statements of Financial Position Net Amounts of Liabilities Presented in the Statements of Financial Position Interest rate swaps $ 27,598 — 27,598 19,499 — 19,499 Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of investment securities totaling $32,673,000 at March 31, 2016 . There was $0 collateral pledged from the counterparty to the Company as of March 31, 2016 . There is the possibility that the Company may need to pledge additional collateral in the future if there were declines in the fair value of the interest rate swap derivative financial instruments versus the collateral pledged.

Other Expenses

Other Expenses	3 Months Ended
	Mar. 31, 2016
Other Expenses [Abstract]
Other Expenses	Other Expenses Other expenses consists of the following: Three Months ended (Dollars in thousands) March 31, March 31, Debit card expenses $ 1,849 1,352 Consulting and outside services 1,014 1,471 Telephone 960 809 Printing and supplies 943 790 Postage 880 914 Loan expenses 783 609 Checking and operating expenses 694 705 VIE write-downs and other expenses 639 607 Employee expenses 579 496 Accounting and audit fees 391 450 Business development 342 308 ATM expenses 255 266 Legal fees 237 265 Other 980 879 Total other expenses $ 10,546 9,921

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The following table illustrates the activity within accumulated other comprehensive income by component, net of tax: (Dollars in thousands) Gains on Available-For-Sale Securities Losses on Derivatives Used for Cash Flow Hedges Total Balance at December 31, 2014 $ 27,945 (10,201 ) 17,744 Other comprehensive income (loss) before reclassification 3,201 (3,682 ) (481 ) Amounts reclassified from accumulated other comprehensive income (3 ) 767 764 Net current period other comprehensive income (loss) 3,198 (2,915 ) 283 Balance at March 31, 2015 $ 31,143 (13,116 ) 18,027 Balance at December 31, 2015 $ 13,935 (11,946 ) 1,989 Other comprehensive income (loss) before reclassification 8,331 (6,082 ) 2,249 Amounts reclassified from accumulated other comprehensive income (38 ) 1,121 1,083 Net current period other comprehensive income (loss) 8,293 (4,961 ) 3,332 Balance at March 31, 2016 $ 22,228 (16,907 ) 5,321

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method. Basic and diluted earnings per share has been computed based on the following: Three Months ended (Dollars in thousands, except per share data) March 31, March 31, Net income available to common stockholders, basic and diluted $ 28,682 27,670 Average outstanding shares - basic 76,126,251 75,206,348 Add: dilutive stock options and awards 47,166 38,611 Average outstanding shares - diluted 76,173,417 75,244,959 Basic earnings per share $ 0.38 0.37 Diluted earnings per share $ 0.38 0.37 There were no stock options or restricted stock awards excluded from the diluted average outstanding share calculation for the three months ended March 31, 2016 and 2015 , because to do so would have been anti-dilutive for those periods. Anti-dilution occurs when the exercise price of a stock option or the unrecognized compensation cost per share of a restricted stock award exceeds the market price of the Company’s stock.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. There is a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three levels of inputs that may be used to measure fair value are as follows: Level 1 Quoted prices in active markets for identical assets or liabilities Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities Transfers in and out of Level 1 (quoted prices in active markets), Level 2 (significant other observable inputs) and Level 3 (significant unobservable inputs) are recognized on the actual transfer date. There were no transfers between fair value hierarchy levels during the three month periods ended March 31, 2016 and 2015 . Recurring Measurements The following is a description of the inputs and valuation methodologies used for assets and liabilities measured at fair value on a recurring basis, as well as the general classification of such assets and liabilities pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended March 31, 2016 . Investment securities, available-for-sale: fair value for available-for-sale securities is estimated by obtaining quoted market prices for identical assets, where available. If such prices are not available, fair value is based on independent asset pricing services and models, the inputs of which are market-based or independently sourced market parameters, including but not limited to, yield curves, interest rates, volatilities, market spreads, prepayments, defaults, recoveries, cumulative loss projections, and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. Where Level 1 or Level 2 inputs are not available, such securities are classified as Level 3 within the hierarchy. Fair value determinations of available-for-sale securities are the responsibility of the Company’s corporate accounting and treasury departments. The Company obtains fair value estimates from independent third party vendors on a monthly basis. The vendors’ pricing system methodologies, procedures and system controls are reviewed to ensure they are appropriately designed and operating effectively. The Company reviews the vendors’ inputs for fair value estimates and the recommended assignments of levels within the fair value hierarchy. The review includes the extent to which markets for investment securities are determined to have limited or no activity, or are judged to be active markets. The Company reviews the extent to which observable and unobservable inputs are used as well as the appropriateness of the underlying assumptions about risk that a market participant would use in active markets, with adjustments for limited or inactive markets. In considering the inputs to the fair value estimates, the Company places less reliance on quotes that are judged to not reflect orderly transactions, or are non-binding indications. In assessing credit risk, the Company reviews payment performance, collateral adequacy, third party research and analyses, credit rating histories and issuers’ financial statements. For those markets determined to be inactive or limited, the valuation techniques used are models for which management has verified that discount rates are appropriately adjusted to reflect illiquidity and credit risk. Interest rate swap derivative financial instruments: fair values for interest rate swap derivative financial instruments 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 and, therefore, are classified within Level 2 of the valuation hierarchy. 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. The Company also obtains and compares the reasonableness of the pricing from an independent third party. The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value March 31, 2016 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. government and federal agency $ 45,687 — 45,687 — U.S. government sponsored enterprises 68,773 — 68,773 — State and local governments 901,133 — 901,133 — Corporate bonds 442,875 — 442,875 — Residential mortgage-backed securities 1,146,157 — 1,146,157 — Total assets measured at fair value on a recurring basis $ 2,604,625 — 2,604,625 — Interest rate swaps $ 27,598 — 27,598 — Total liabilities measured at fair value on a recurring basis $ 27,598 — 27,598 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2015 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. government and federal agency $ 47,451 — 47,451 — U.S. government sponsored enterprises 93,167 — 93,167 — State and local governments 885,019 — 885,019 — Corporate bonds 384,163 — 384,163 — Residential mortgage-backed securities 1,200,960 — 1,200,960 — Total assets measured at fair value on a recurring basis $ 2,610,760 — 2,610,760 — Interest rate swaps $ 19,499 — 19,499 — Total liabilities measured at fair value on a recurring basis $ 19,499 — 19,499 — Non-recurring Measurements The following is a description of the inputs and valuation methodologies used for assets recorded at fair value on a non-recurring basis, as well as the general classification of such assets pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended March 31, 2016 . Other real estate owned: OREO is carried at the lower of fair value at acquisition date or current estimated fair value, less estimated cost to sell. Estimated fair value of OREO is based on appraisals or evaluations (new or updated). OREO is classified within Level 3 of the fair value hierarchy. Collateral-dependent impaired loans, net of ALLL: loans included in the Company’s loan portfolio for which it is probable that the Company will not collect all principal and interest due according to contractual terms are considered impaired. Estimated fair value of collateral-dependent impaired loans is based on the fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy. The Company’s credit departments review appraisals for OREO and collateral-dependent loans, giving consideration to the highest and best use of the collateral. The appraisal or evaluation (new or updated) is considered the starting point for determining fair value. The valuation techniques used in preparing appraisals or evaluations (new or updated) include the cost approach, income approach, sales comparison approach, or a combination of the preceding valuation techniques. The key inputs used to determine the fair value of the collateral-dependent loans and OREO include selling costs, discounted cash flow rate or capitalization rate, and adjustment to comparables. Valuations and significant inputs obtained by independent sources are reviewed by the Company for accuracy and reasonableness. The Company also considers other factors and events in the environment that may affect the fair value. The appraisals or evaluations (new or updated) are reviewed at least quarterly and more frequently based on current market conditions, including deterioration in a borrower’s financial condition and when property values may be subject to significant volatility. After review and acceptance of the collateral appraisal or evaluation (new or updated), adjustments to the impaired loan or OREO may occur. The Company generally obtains appraisals or evaluations (new or updated) annually. The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value March 31, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other real estate owned $ 547 — — 547 Collateral-dependent impaired loans, net of ALLL 9,691 — — 9,691 Total assets measured at fair value on a non-recurring basis $ 10,238 — — 10,238 Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2015 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other real estate owned $ 7,609 — — 7,609 Collateral-dependent impaired loans, net of ALLL 12,938 — — 12,938 Total assets measured at fair value on a non-recurring basis $ 20,547 — — 20,547 Non-recurring Measurements Using Significant Unobservable Inputs (Level 3) The following tables present 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 value: Fair Value March 31, 2016 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 547 Sales comparison approach Selling costs 8.0% - 8.0% (8.0%) Collateral-dependent impaired loans, net of ALLL $ 72 Cost approach Selling costs 5.0% - 20.0% (10.8%) 5,795 Sales comparison approach Selling costs 8.0% - 10.0% (9.0%) 3,824 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 9,691 Fair Value December 31, 2015 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 4,067 Sales comparison approach Selling costs 7.0% - 10.0% (7.9%) 3,542 Combined approach Selling costs 8.0% - 8.0% (8.0%) $ 7,609 Collateral-dependent impaired loans, net of ALLL $ 162 Cost approach Selling costs 0.0% - 20.0% (6.1%) 9,465 Sales comparison approach Selling costs 8.0% - 20.0% (8.9%) Adjustment to comparables 0.0% - 5.0% (0.0%) 3,311 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 12,938 __________ 1 The range for selling costs and adjustments to comparables indicate reductions to the fair value. Fair Value of Financial Instruments The following is a description of the methods used to estimate the fair value of all other assets and liabilities recognized at amounts other than fair value. Cash and cash equivalents: fair value is estimated at book value. Investment securities, held-to-maturity: fair value for held-to-maturity securities is estimated in the same manner as available-for-sale securities, which is described above. Loans held for sale: fair value is estimated at book value. Loans receivable, net of ALLL: fair value is estimated by discounting the future cash flows using the rates at which similar notes would be written for the same remaining maturities. The market rates used are based on current rates the Company would impose for similar loans and reflect a market participant assumption about risks associated with non-performance, illiquidity, and the structure and term of the loans along with local economic and market conditions. Estimated fair value of impaired loans is based on the fair value of the collateral, less estimated cost to sell, or the present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate). All impaired loans are classified as Level 3 and all other loans are classified as Level 2 within the valuation hierarchy. Accrued interest receivable: fair value is estimated at book value. Non-marketable equity securities: fair value is estimated at book value due to restrictions that limit the sale or transfer of such securities. Deposits: fair value of term deposits is estimated by discounting the future cash flows using rates of similar deposits with similar maturities. The market rates used were obtained from an independent third party and reviewed by the Company. The rates were the average of current rates offered by the Company’s local competitors. The estimated fair value of demand, NOW, savings, and money market deposits is the book value since rates are regularly adjusted to market rates and transactions are executed at book value daily. Therefore, such deposits are classified in Level 1 of the valuation hierarchy. Certificate accounts and wholesale deposits are classified as Level 2 within the hierarchy. Federal Home Loan Bank advances: fair value of non-callable Federal Home Loan Bank (“FHLB”) advances is estimated by discounting the future cash flows using rates of similar advances with similar maturities. Such rates were obtained from current rates offered by FHLB. The estimated fair value of callable FHLB advances was obtained from FHLB and the model was reviewed by the Company. Securities sold under agreements to repurchase and other borrowed funds: fair value of term repurchase agreements and other term borrowings is estimated based on current repurchase rates and borrowing rates currently available to the Company for repurchases and borrowings with similar terms and maturities. The estimated fair value for overnight repurchase agreements and other borrowings is book value. Subordinated debentures: fair value of the subordinated debt is estimated by discounting the estimated future cash flows using current estimated market rates. The market rates used were averages of currently traded trust preferred securities with similar characteristics to the Company’s issuances and obtained from an independent third party. Accrued interest payable: fair value is estimated at book value. Off-balance sheet financial instruments: commitments to extend credit and letters of credit represent the principal categories of off-balance sheet financial instruments. Rates for these commitments are set at time of loan closing, such that no adjustment is necessary to reflect these commitments at market value. The Company has an insignificant amount of off-balance sheet financial instruments. The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount March 31, 2016 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 $ 150,861 150,861 — — Investment securities, available-for-sale 2,604,625 — 2,604,625 — Investment securities, held-to-maturity 691,663 — 720,190 — Loans held for sale 40,484 40,484 — — Loans receivable, net of ALLL 5,067,122 — 4,897,887 132,426 Accrued interest receivable 47,363 47,363 — — Non-marketable equity securities 24,199 — 24,199 — Total financial assets $ 8,626,317 238,708 8,246,901 132,426 Financial liabilities Deposits $ 7,016,194 5,626,969 1,389,225 — FHLB advances 313,969 — 324,946 — Repurchase agreements and other borrowed funds 452,593 — 452,593 — Subordinated debentures 125,884 — 81,174 — Accrued interest payable 3,608 3,608 — — Interest rate swaps 27,598 — 27,598 — Total financial liabilities $ 7,939,846 5,630,577 2,275,536 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount December 31, 2015 Quoted Prices Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and cash equivalents $ 193,253 193,253 — — Investment securities, available-for-sale 2,610,760 — 2,610,760 — Investment securities, held-to-maturity 702,072 — 729,513 — Loans held for sale 56,514 56,514 — — Loans receivable, net of ALLL 4,948,984 — 4,851,934 132,649 Accrued interest receivable 44,524 44,524 — — Non-marketable equity securities 27,495 — 27,495 — Total financial assets $ 8,583,602 294,291 8,219,702 132,649 Financial liabilities Deposits $ 6,945,008 5,654,638 1,293,506 — FHLB advances 394,131 — 401,530 — Repurchase agreements and other borrowed funds 430,016 — 430,016 — Subordinated debentures 125,848 — 81,840 — Accrued interest payable 3,517 3,517 — — Interest rate swaps 19,499 — 19,499 — Total financial liabilities $ 7,918,019 5,658,155 2,226,391 —

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On April 20, 2016, the Company announced the signing of a definitive agreement to acquire Treasure State Bank, a community bank based in Missoula, Montana . Treasure State Bank provides banking services to individuals and businesses in the greater Missoula market. As of December 31, 2015, Treasure State Bank had total assets of $71,000,000 , gross loans of $53,000,000 and total deposits of $58,000,000 . Upon closing of the transaction, which is anticipated to take place in the third quarter of 2016, Treasure State Bank will be merged into the Bank and will become part of the First Security Bank of Missoula division.

Nature of Operations and Summ21

Nature of Operations and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General Glacier Bancorp, Inc. (“Company”) is a Montana corporation headquartered in Kalispell, Montana. The Company provides a full range of banking services to individuals and businesses in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the Company’s financial condition as of March 31, 2016 , the results of operations and comprehensive income for the three month periods ended March 31, 2016 and 2015 , and changes in stockholders’ equity and cash flows for the three month periods ended March 31, 2016 and 2015 . The condensed consolidated statement of financial condition of the Company as of December 31, 2015 has been derived from the audited consolidated statements of the Company as of that date. The accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 . Operating results for the three months ended March 31, 2016 are not necessarily indicative of the results anticipated for the year ending December 31, 2016 . The Company is a defendant in legal proceedings arising in the normal course of business. In the opinion of management, the disposition of pending litigation will not have a material affect on the Company’s consolidated financial position, results of operations or liquidity. Material estimates that are particularly susceptible to significant change include: 1) the determination of the allowance for loan and lease losses (“ALLL” or “allowance”); 2) the valuation of investment securities; 3) the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans; and 4) the evaluation of goodwill impairment. For the determination of the ALLL and real estate valuation estimates, management obtains independent appraisals (new or updated) for significant items. Estimates relating to investment valuations are obtained from independent third parties. Estimates relating to the evaluation of goodwill for impairment are determined based on internal calculations using significant independent party inputs.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements of the Company include the parent holding company, the Bank and all variable interest entities (“VIE”) for which the Company has both the power to direct the VIE’s significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could potentially be significant to the VIE. The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. The Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment as the Bank 1) engages in similar bank business activity from which it earns revenues and incurs expenses; 2) the operating results of the Bank are regularly reviewed by the Chief Executive Officer (i.e., the chief operating decision maker) who makes decisions about resources to be allocated to the Bank; and 3) financial information is available for the Bank. All significant inter-company transactions have been eliminated in consolidation. In October 2015, the Company completed its acquisition of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado (collectively, “Cañon”). In February 2015, the Company completed its acquisition of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana (collectively, “CB”). The transactions were accounted for using the acquisition method, and their results of operations have been included in the Company’s consolidated financial statements as of the acquisition dates. In February 2015, the Financial Accounting Standards Board’s (“FASB”) amended consolidation guidance by modifying the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities and by changing how entities analyze related-party relationships and fee arrangements. As a result of this amendment, the Company determined it was no longer the primary beneficiary of its Low-Income Housing Tax Credit (“LIHTC”) partnerships and deconsolidated its LIHTC investments effective January 1, 2016. There was no material effect on the Company’s financial condition or results of operations upon adoption of this accounting guidance.
Loans Receivable	Loans Receivable Loans that are intended to be held-to-maturity are reported at the unpaid principal balance less net charge-offs and adjusted for deferred fees and costs on originated loans and unamortized premiums or discounts on acquired loans. Fees and costs on originated loans and premiums or discounts on acquired loans are deferred and subsequently amortized or accreted as a yield adjustment over the expected life of the loan utilizing the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. When a loan is paid off prior to maturity, the remaining fees and costs on originated loans and premiums or discounts on acquired loans are immediately recognized into interest income. The Company’s loan segments, which are based on the purpose of the loan, include residential real estate, commercial, and consumer loans. The Company’s loan classes, a further disaggregation of segments, include residential real estate loans (residential real estate segment), commercial real estate and other commercial loans (commercial segment), and home equity and other consumer loans (consumer segment). Loans that are thirty days or more past due based on payments received and applied to the loan are considered delinquent. Loans are designated non-accrual and the accrual of interest is discontinued when the collection of the contractual principal or interest is unlikely. A loan is typically placed on non-accrual when principal or interest is due and has remained unpaid for ninety days or more. When a loan is placed on non-accrual status, interest previously accrued but not collected is reversed against current period interest income. Subsequent payments on non-accrual loans are applied to the outstanding principal balance if doubt remains as to the ultimate collectability of the loan. Interest accruals are not resumed on partially charged-off impaired loans. For other loans on nonaccrual, interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest. The Company considers impaired loans to be the primary credit quality indicator for monitoring the credit quality of the loan portfolio. Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and, therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring). Interest income on accruing impaired loans is recognized using the interest method. The Company measures impairment on a loan-by-loan basis in the same manner for each class within the loan portfolio. An insignificant delay or shortfall in the amounts of payments would not cause a loan or lease to be considered impaired. The Company determines the significance of payment delays and shortfalls on a case-by-case basis, taking into consideration all of the facts and circumstances surrounding the loan and the borrower, including the length and reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest due. A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company periodically enters into restructure agreements with borrowers whereby the loans were previously identified as TDRs. When such circumstances occur, the Company carefully evaluates the facts of the subsequent restructure to determine the appropriate accounting and under certain circumstances it may be acceptable not to account for the subsequently restructured loan as a TDR. When assessing whether a concession has been granted by the Company, any prior forgiveness on a cumulative basis is considered a continuing concession. A TDR loan is considered an impaired loan and a specific valuation allowance is established when the fair value of the collateral-dependent loan or present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate based on the original contractual rate) is lower than the carrying value of the impaired loan. The Company has made the following types of loan modifications, some of which were considered a TDR: • reduction of the stated interest rate for the remaining term of the debt; • extension of the maturity date(s) at a stated rate of interest lower than the current market rate for newly originated debt having similar risk characteristics; and • reduction of the face amount of the debt as stated in the debt agreements. The Company recognizes that while borrowers may experience deterioration in their financial condition, many continue to be creditworthy customers who have the willingness and capacity for debt repayment. In determining whether non-restructured or unimpaired loans issued to a single or related party group of borrowers should continue to accrue interest when the borrower has other loans that are impaired or are TDRs, the Company on a quarterly or more frequent basis performs an updated and comprehensive assessment of the willingness and capacity of the borrowers to timely and ultimately repay their total debt obligations, including contingent obligations. Such analysis takes into account current financial information about the borrowers and financially responsible guarantors, if any, including for example: • analysis of global, i.e., aggregate debt service for total debt obligations; • assessment of the value and security protection of collateral pledged using current market conditions and alternative market assumptions across a variety of potential future situations; and • loan structures and related covenants. For additional information relating to loans, see Note 3.
Allowance for Loan and Lease Losses	Allowance for Loan and Lease Losses Based upon management’s analysis of the Company’s loan portfolio, the balance of the ALLL is an estimate of probable credit losses known and inherent within the Bank’s loan portfolio as of the date of the consolidated financial statements. The ALLL is analyzed at the loan class level and is maintained within a range of estimated losses. Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The determination of the ALLL and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses. The balance of the ALLL is highly dependent upon management’s evaluations of borrowers’ current and prospective performance, appraisals and other variables affecting the quality of the loan portfolio. Individually significant loans and major lending areas are reviewed periodically to determine potential problems at an early date. Changes in management’s estimates and assumptions are reasonably possible and may have a material impact upon the Company’s consolidated financial statements, results of operations or capital. Risk characteristics considered in the ALLL analysis applicable to each loan class within the Company's loan portfolio are as follows: Residential Real Estate. Residential real estate loans are secured by owner-occupied 1-4 family residences. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers. Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the property securing the loans and affect the borrowers' personal incomes. Mitigating risk factors for this loan class include a large number of borrowers, geographic dispersion of market areas and the loans are originated for relatively smaller amounts. Commercial Real Estate . Commercial real estate loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operation of the property securing the loan and/or the business conducted on the property securing the loan. Credit risk in these loans is impacted by the creditworthiness of a borrower, valuation of the property securing the loan and conditions within the local economies in the Company’s diverse, geographic market areas. Commercial . Commercial loans consist of loans to commercial customers for use in financing working capital needs, equipment purchases and business expansions. The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation. Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations across the Company’s diverse, geographic market areas. Home Equity . Home equity loans consist of junior lien mortgages and first and junior lien lines of credit (revolving open-end and amortizing closed-end) secured by owner-occupied 1-4 family residences. Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers. Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the residential property securing the loans and affect the borrowers' personal incomes. Mitigating risk factors for this loan class are a large number of borrowers, geographic dispersion of market areas and the loans are originated for terms that range from 10 years to 20 years. Other Consumer . The other consumer loan portfolio consists of various short-term loans such as automobile loans and loans for other personal purposes. Repayment of these loans is primarily dependent on the personal income of the borrowers. Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the Company’s diverse, geographic market area) and the creditworthiness of a borrower. The ALLL consists of a specific valuation allowance component and a general valuation allowance component. The specific component relates to loans that are determined to be impaired and individually evaluated for impairment. The Company measures impairment on a loan-by-loan basis based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except when it is determined that repayment of the loan is expected to be provided solely by the underlying collateral. For impairment based on expected future cash flows, the Company considers all information available as of a measurement date, including past events, current conditions, potential prepayments, and estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the loan. For alternative ranges of cash flows, the likelihood of the possible outcomes is considered in determining the best estimate of expected future cash flows. The effective interest rate for a loan restructured in a TDR is based on the original contractual rate. For collateral-dependent loans and real estate loans for which foreclosure or a deed-in-lieu of foreclosure is probable, impairment is measured by the fair value of the collateral, less estimated cost to sell. The fair value of the collateral is determined primarily based upon appraisal or evaluation of the underlying real property value. The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors. The historical loss experience is based on the previous twelve quarters loss experience by loan class adjusted for risk characteristics in the existing loan portfolio. The same trends and conditions are evaluated for each class within the loan portfolio; however, the risk characteristics are weighted separately at the individual class level based on the Company’s judgment and experience. The changes in trends and conditions evaluated for each class within the loan portfolio include the following: • Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses; • Changes in global, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments; • Changes in the nature and volume of the portfolio and in the terms of loans; • Changes in experience, ability, and depth of lending management and other relevant staff; • Changes in the volume and severity of past due and nonaccrual loans; • Changes in the quality of the Company’s loan review system; • Changes in the value of underlying collateral for collateral-dependent loans; • The existence and effect of any concentrations of credit, and changes in the level of such concentrations; and • The effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Company’s existing portfolio. The ALLL is increased by provisions for loan losses which are charged to expense. The portions of loan balances determined by management to be uncollectible are charged off as a reduction of the ALLL and recoveries of amounts previously charged off are credited as an increase to the ALLL. The Company’s charge-off policy is consistent with bank regulatory standards. Consumer loans generally are charged off when the loan becomes over 120 days delinquent. Real estate acquired as a result of foreclosure or by deed-in-lieu of foreclosure is classified as real estate owned until such time as it is sold. At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over from acquired banks. Subsequent to acquisition, an allowance will be recorded on the acquired loan portfolios for further credit deterioration, if any.
Reclassifications	Reclassifications Certain reclassifications have been made to the 2015 financial statements to conform to the 2016 presentation.
Impact of Recent Authoritative Accounting Guidance	Impact of Recent Authoritative Accounting Guidance The Accounting Standards Codification ™ (“ASC”) is FASB’s officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of the federal securities laws are also sources of authoritative GAAP for the Company as an SEC registrant. All other accounting literature is non-authoritative. The following paragraphs provide descriptions of recently adopted or newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations. In March 2016, FASB amended FASB ASC Topic 718, Compensation - Stock Compensation. The amendments in this Update address certain aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification of awards on the statement of cash flows. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2016. Early adoption is permitted in any interim or annual period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In February 2016, FASB amended FASB ASC Topic 842, Leases. The amendments in this Update address several aspects of lease accounting with the significant change being the recognition of lease assets and lease liabilities for leases previously classified as operating leases. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018 and early adoption is permitted. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In January 2016, FASB amended FASB ASC Topic 825, Financial Instruments. The amendments in this Update address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Early adoption is only permitted under certain circumstances outlined in the amendments. A reporting entity should apply the amendments by means of a cumulative-effect adjustment to the Company’s statement of financial condition as of the beginning of the reporting year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations. In September 2015, FASB amended FASB ASC Topic 805, Business Combinations. The amendments in this Update require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustments are necessary. The amendments in this Update 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. The amendments in this Update require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments should be applied prospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The Company has evaluated the impact of these amendments and determined there was not a material effect on the Company’s financial position or results of operations. In February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and end a deferral available for investment companies. The amendments modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities. Consolidation conclusions may change for entities that already are VIEs due to changes in how entities would analyze related-party relationships and fee arrangements. The amendments relax existing criteria for determining when fees paid to a decision maker or service provider do not represent a variable interest by focusing on whether those fees are “at market.” The amendments eliminate both the consolidation model specific to limited partnerships and the current presumption that a general partner controls a limited partnership. Application of the new amendments could result in some entities being deconsolidated or considered a VIE and subject to additional disclosures. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period with any adjustments reflected as of the beginning of the reporting year that includes the interim period. A reporting entity may apply the amendments using a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the reporting year of adoption or may apply the amendments retrospectively. The Company has evaluated the impact of these amendments and determined there was not a material effect on the Company’s financial position or results of operations. In May 2014, FASB amended FASB ASC Topic 606, Revenue from Contracts with Customers. The amendments clarify the principals for recognizing revenue and develop a common revenue standard among industries. The new guidance establishes the following core principal: 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 goods or services. Five steps are provided for a company or organization to follow to achieve such core principle. The new guidance also includes a cohesive set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standards Update No 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Amortized cost, gross unrealized gains and losses and fair value of investment securities	The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of the Company’s investment securities: March 31, 2016 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 45,957 18 (288 ) 45,687 U.S. government sponsored enterprises 68,100 673 — 68,773 State and local governments 870,239 36,720 (5,826 ) 901,133 Corporate bonds 443,632 738 (1,495 ) 442,875 Residential mortgage-backed securities 1,140,413 8,434 (2,690 ) 1,146,157 Total available-for-sale 2,568,341 46,583 (10,299 ) 2,604,625 Held-to-maturity State and local governments 691,663 33,081 (4,554 ) 720,190 Total held-to-maturity 691,663 33,081 (4,554 ) 720,190 Total investment securities $ 3,260,004 79,664 (14,853 ) 3,324,815 December 31, 2015 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 47,868 15 (432 ) 47,451 U.S. government sponsored enterprises 93,230 100 (163 ) 93,167 State and local governments 856,738 34,159 (5,878 ) 885,019 Corporate bonds 386,629 611 (3,077 ) 384,163 Residential mortgage-backed securities 1,203,548 6,180 (8,768 ) 1,200,960 Total available-for-sale 2,588,013 41,065 (18,318 ) 2,610,760 Held-to-maturity State and local governments 702,072 31,863 (4,422 ) 729,513 Total held-to-maturity 702,072 31,863 (4,422 ) 729,513 Total investment securities $ 3,290,085 72,928 (22,740 ) 3,340,273
Amortized cost and fair value of securities by contractual maturity	The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at March 31, 2016 . Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties. March 31, 2016 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 150,150 150,764 — — Due after one year through five years 503,233 503,879 — — Due after five years through ten years 144,750 149,613 28,545 29,370 Due after ten years 629,795 654,212 663,118 690,820 1,427,928 1,458,468 691,663 720,190 Residential mortgage-backed securities 1 1,140,413 1,146,157 — — Total $ 2,568,341 2,604,625 691,663 720,190 __________ 1 Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.
Proceeds from sales and calls of investment securities and the associated gains and losses	Proceeds from sales and calls of investment securities and the associated gains and losses that have been included in earnings are listed below: Three Months ended (Dollars in thousands) March 31, March 31, Available-for-sale Proceeds from sales and calls of investment securities $ 58,623 62,703 Gross realized gains 1 800 39 Gross realized losses 1 (739 ) (35 ) Held-to-maturity Proceeds from calls of investment securities 11,155 460 Gross realized gains 1 47 1 Gross realized losses 1 — — __________ 1 The gain or loss on the sale or call of each investment security is determined by the specific identification method.
Summary of investments with an unrealized loss position	Investment securities with an unrealized loss position are summarized as follows: March 31, 2016 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale U.S. government and federal agency $ 2,291 (5 ) 39,478 (283 ) 41,769 (288 ) State and local governments 50,820 (444 ) 145,853 (5,382 ) 196,673 (5,826 ) Corporate bonds 208,048 (1,227 ) 33,786 (268 ) 241,834 (1,495 ) Residential mortgage-backed securities 259,495 (1,655 ) 65,081 (1,035 ) 324,576 (2,690 ) Total available-for-sale $ 520,654 (3,331 ) 284,198 (6,968 ) 804,852 (10,299 ) Held-to-maturity State and local governments $ 16,230 (209 ) 108,674 (4,345 ) 124,904 (4,554 ) Total held-to-maturity $ 16,230 (209 ) 108,674 (4,345 ) 124,904 (4,554 ) December 31, 2015 Less than 12 Months 12 Months or More Total (Dollars in thousands) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale U.S. government and federal agency $ 42,493 (432 ) 2 — 42,495 (432 ) U.S. government sponsored enterprises 60,010 (163 ) — — 60,010 (163 ) State and local governments 102,422 (1,629 ) 115,943 (4,249 ) 218,365 (5,878 ) Corporate bonds 228,258 (1,812 ) 13,962 (1,265 ) 242,220 (3,077 ) Residential mortgage-backed securities 730,412 (7,226 ) 53,021 (1,542 ) 783,433 (8,768 ) Total available-for-sale $ 1,163,595 (11,262 ) 182,928 (7,056 ) 1,346,523 (18,318 ) Held-to-maturity State and local governments $ 42,322 (594 ) 81,709 (3,828 ) 124,031 (4,422 ) Total held-to-maturity $ 42,322 (594 ) 81,709 (3,828 ) 124,031 (4,422 )

Loans Receivable, Net (Tables)

Loans Receivable, Net (Tables)	3 Months Ended
	Mar. 31, 2016
Receivables [Abstract]
Summary of loans receivable	The following table presents loans receivable for each portfolio class of loans: (Dollars in thousands) March 31, December 31, Residential real estate loans $ 685,026 688,912 Commercial loans Real estate 2,680,691 2,633,953 Other commercial 1,172,956 1,099,564 Total 3,853,647 3,733,517 Consumer and other loans Home equity 423,895 420,901 Other consumer 234,625 235,351 Total 658,520 656,252 Loans receivable 1 5,197,193 5,078,681 Allowance for loan and lease losses (130,071 ) (129,697 ) Loans receivable, net $ 5,067,122 4,948,984 Weighted-average interest rate on loans (tax-equivalent) 4.81 % 4.84 % __________ 1 Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015 , respectively.
Summary of the activity in the ALLL	The following tables summarize the activity in the ALLL by portfolio segment: Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,697 14,427 67,877 32,525 8,998 5,870 Provision for loan losses 568 (1,149 ) (873 ) 3,720 (793 ) (337 ) Charge-offs (1,163 ) (100 ) (253 ) (324 ) (229 ) (257 ) Recoveries 969 18 295 133 173 350 Balance at end of period $ 130,071 13,196 67,046 36,054 8,149 5,626 Three Months ended March 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,753 14,680 67,799 30,891 9,963 6,420 Provision for loan losses 765 440 (286 ) 1,112 (459 ) (42 ) Charge-offs (1,297 ) (14 ) (445 ) (694 ) (31 ) (113 ) Recoveries 635 25 259 206 46 99 Balance at end of period $ 129,856 15,131 67,327 31,515 9,519 6,364
Summary of ALLL and loans receivable	The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment: March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Allowance for loan and lease losses Individually evaluated for impairment $ 8,440 597 914 6,442 190 297 Collectively evaluated for impairment 121,631 12,599 66,132 29,612 7,959 5,329 Total allowance for loan and lease losses $ 130,071 13,196 67,046 36,054 8,149 5,626 Loans receivable Individually evaluated for impairment $ 140,866 21,041 81,840 27,889 6,557 3,539 Collectively evaluated for impairment 5,056,327 663,985 2,598,851 1,145,067 417,338 231,086 Total loans receivable $ 5,197,193 685,026 2,680,691 1,172,956 423,895 234,625 December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Allowance for loan and lease losses Individually evaluated for impairment $ 8,124 782 1,629 5,277 64 372 Collectively evaluated for impairment 121,573 13,645 66,248 27,248 8,934 5,498 Total allowance for loan and lease losses $ 129,697 14,427 67,877 32,525 8,998 5,870 Loans receivable Individually evaluated for impairment $ 140,773 20,767 85,845 23,874 6,493 3,794 Collectively evaluated for impairment 4,937,908 668,145 2,548,108 1,075,690 414,408 231,557 Total loans receivable $ 5,078,681 688,912 2,633,953 1,099,564 420,901 235,351
Summary of impaired loans	The following tables disclose information related to impaired loans by portfolio segment: At or for the Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 31,631 7,501 10,077 12,150 456 1,447 Unpaid principal balance 32,794 8,364 10,094 12,266 590 1,480 Specific valuation allowance 8,440 597 914 6,442 190 297 Average balance 33,157 7,877 11,316 12,036 279 1,649 Loans without a specific valuation allowance Recorded balance $ 109,235 13,540 71,763 15,739 6,101 2,092 Unpaid principal balance 136,388 15,042 92,608 19,657 6,882 2,199 Average balance 107,662 13,027 72,527 13,845 6,246 2,017 Total Recorded balance $ 140,866 21,041 81,840 27,889 6,557 3,539 Unpaid principal balance 169,182 23,406 102,702 31,923 7,472 3,679 Specific valuation allowance 8,440 597 914 6,442 190 297 Average balance 140,819 20,904 83,843 25,881 6,525 3,666 At or for the Year ended December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 34,683 8,253 12,554 11,923 102 1,851 Unpaid principal balance 36,157 9,198 12,581 12,335 109 1,934 Specific valuation allowance 8,124 782 1,629 5,277 64 372 Average balance 36,176 6,393 15,827 11,768 426 1,762 Loans without a specific valuation allowance Recorded balance $ 106,090 12,514 73,291 11,951 6,391 1,943 Unpaid principal balance 132,718 13,969 94,028 15,539 7,153 2,029 Average balance 116,356 13,615 78,684 15,479 6,350 2,228 Total Recorded balance $ 140,773 20,767 85,845 23,874 6,493 3,794 Unpaid principal balance 168,875 23,167 106,609 27,874 7,262 3,963 Specific valuation allowance 8,124 782 1,629 5,277 64 372 Average balance 152,532 20,008 94,511 27,247 6,776 3,990
Loan portfolio aging analysis	The following tables present an aging analysis of the recorded investment in loans by portfolio segment: March 31, 2016 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 20,663 3,365 6,644 7,454 1,930 1,270 Accruing loans 60-89 days past due 3,333 110 1,268 1,106 739 110 Accruing loans 90 days or more past due 4,615 833 1,630 2,007 107 38 Non-accrual loans 53,523 7,319 29,747 9,799 5,998 660 Total past due and non-accrual loans 82,134 11,627 39,289 20,366 8,774 2,078 Current loans receivable 5,115,059 673,399 2,641,402 1,152,590 415,121 232,547 Total loans receivable $ 5,197,193 685,026 2,680,691 1,172,956 423,895 234,625 December 31, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 15,801 4,895 4,393 3,564 1,601 1,348 Accruing loans 60-89 days past due 3,612 961 1,841 286 280 244 Accruing loans 90 days or more past due 2,131 — 231 1,820 15 65 Non-accrual loans 51,133 8,073 28,819 7,691 6,022 528 Total past due and non-accrual loans 72,677 13,929 35,284 13,361 7,918 2,185 Current loans receivable 5,006,004 674,983 2,598,669 1,086,203 412,983 233,166 Total loans receivable $ 5,078,681 688,912 2,633,953 1,099,564 420,901 235,351
Summary of TDRs	The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented: Three Months ended March 31, 2016 (Dollars in thousands) Total Residential Commercial Other Home Other TDRs that occurred during the period Number of loans 3 — 1 1 1 — Pre-modification recorded balance $ 8,959 — 56 8,755 148 — Post-modification recorded balance $ 8,959 — 56 8,755 148 — TDRs that subsequently defaulted Number of loans — — — — — — Recorded balance $ — — — — — — Three Months ended March 31, 2015 (Dollars in thousands) Total Residential Commercial Other Home Other TDRs that occurred during the period Number of loans 5 — 2 3 — — Pre-modification recorded balance $ 3,085 — 2,182 903 — — Post-modification recorded balance $ 3,085 — 2,182 903 — — TDRs that subsequently defaulted Number of loans 6 — — 3 2 1 Recorded balance $ 174 — — 57 116 1

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in the carrying value of goodwill	The following schedule discloses the changes in the carrying value of goodwill: Three Months ended (Dollars in thousands) March 31, March 31, Net carrying value at beginning of period $ 140,638 129,706 Acquisitions — 1,137 Net carrying value at end of period $ 140,638 130,843
Gross carrying value of goodwill and the accumulated impairment charge	The gross carrying value of goodwill and the accumulated impairment charge consists of the following: (Dollars in thousands) March 31, December 31, Gross carrying value $ 180,797 180,797 Accumulated impairment charge 1 (40,159 ) (40,159 ) Net carrying value $ 140,638 140,638 __________ 1 A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Carrying amounts of consolidated VIEs' assets and liabilities	The following table summarizes the carrying amounts of the consolidated VIEs’ assets and liabilities included in the Company’s statements of financial condition and are adjusted for intercompany eliminations. All assets presented can be used only to settle obligations of the consolidated VIEs and all liabilities presented consist of liabilities for which creditors and other beneficial interest holders therein have no recourse to the general credit of the Company. (Dollars in thousands) March 31, December 31, Assets Loans receivable $ 57,228 57,126 Premises and equipment, net — 13,503 Accrued interest receivable 206 117 Other assets 1,029 1,429 Total assets $ 58,463 72,175 Liabilities Other borrowed funds $ 4,555 6,195 Accrued interest payable 4 9 Other liabilities 145 139 Total liabilities $ 4,704 6,343
Amortization expense and tax credits and other tax benefits recognized for qualified affordable housing project investments	The following table summarizes the amortization expense and the amount of tax credits and other tax benefits recognized for qualified affordable housing project investments during the three months ended March 31, 2016 and 2015 . Amortization expense is recognized as a component of income tax expense. Three Months ended (Dollars in thousands) March 31, March 31, Amortization expense $ 255 252 Tax credits and other tax benefits recognized 392 391

Securities Sold Under Agreeme26

Securities Sold Under Agreements to Repurchase Securities Sold Under Agreements to Repurchase (Tables)	3 Months Ended
	Mar. 31, 2016
Transfers and Servicing [Abstract]
Carrying Value of Repurchase Agreements	The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral: March 31, 2016 Remaining Contractual Maturity of the Agreements (Dollars in thousands) Overnight and Continuous Up to 30 Days Total Residential mortgage-backed securities $ 443,913 2,047 445,960 December 31, 2015 Remaining Contractual Maturity of the Agreements (Dollars in thousands) Overnight and Continuous Up to 30 Days Total U.S. government sponsored enterprises $ 12,507 — 12,507 Residential mortgage-backed securities 408,460 2,447 410,907 $ 420,967 2,447 423,414

Derivatives and Hedging Activ27

Derivatives and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of interest rate swap derivative financial instruments	As of March 31, 2016 , the Company’s interest rate swap derivative financial instruments were designated as cash flow hedges and are summarized as follows: (Dollars in thousands) Forecasted Notional Amount Variable Interest Rate 1 Fixed Interest Rate 1 Payment Term Interest rate swap $ 160,000 3 month LIBOR 3.378 % Oct. 21, 2014 - Oct. 21, 2021 Interest rate swap 100,000 3 month LIBOR 2.498 % Nov. 30, 2015 - Nov. 30, 2022 __________ 1 The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.
Summary of Pre-Tax Gains or Losses	The following table presents the pre-tax gains or losses recorded in accumulated other comprehensive income and the Company’s statements of operations relating to the interest rate swap derivative financial instruments: Three Months ended (Dollars in thousands) March 31, March 31, Interest rate swaps Amount of loss recognized in OCI (effective portion) $ (9,928 ) (5,993 ) Amount of loss reclassified from OCI to interest expense (1,829 ) (1,251 ) Amount of loss recognized in other non-interest expense (ineffective portion) — —
Offsetting liabilities	The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities. There were no interest rate swap derivative assets at the dates presented. March 31, 2016 December 31, 2015 (Dollars in thousands) Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statements of Financial Position Net Amounts of Liabilities Presented in the Statements of Financial Position Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Statements of Financial Position Net Amounts of Liabilities Presented in the Statements of Financial Position Interest rate swaps $ 27,598 — 27,598 19,499 — 19,499

Other Expenses (Tables)

Other Expenses (Tables)	3 Months Ended
	Mar. 31, 2016
Other Expenses [Abstract]
Schedule of Other Expenses	Other expenses consists of the following: Three Months ended (Dollars in thousands) March 31, March 31, Debit card expenses $ 1,849 1,352 Consulting and outside services 1,014 1,471 Telephone 960 809 Printing and supplies 943 790 Postage 880 914 Loan expenses 783 609 Checking and operating expenses 694 705 VIE write-downs and other expenses 639 607 Employee expenses 579 496 Accounting and audit fees 391 450 Business development 342 308 ATM expenses 255 266 Legal fees 237 265 Other 980 879 Total other expenses $ 10,546 9,921

Accumulated Other Comprehensi29

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2016
Equity [Abstract]
Activity within Accumulated Other Comprehensive Income, Net of Tax	The following table illustrates the activity within accumulated other comprehensive income by component, net of tax: (Dollars in thousands) Gains on Available-For-Sale Securities Losses on Derivatives Used for Cash Flow Hedges Total Balance at December 31, 2014 $ 27,945 (10,201 ) 17,744 Other comprehensive income (loss) before reclassification 3,201 (3,682 ) (481 ) Amounts reclassified from accumulated other comprehensive income (3 ) 767 764 Net current period other comprehensive income (loss) 3,198 (2,915 ) 283 Balance at March 31, 2015 $ 31,143 (13,116 ) 18,027 Balance at December 31, 2015 $ 13,935 (11,946 ) 1,989 Other comprehensive income (loss) before reclassification 8,331 (6,082 ) 2,249 Amounts reclassified from accumulated other comprehensive income (38 ) 1,121 1,083 Net current period other comprehensive income (loss) 8,293 (4,961 ) 3,332 Balance at March 31, 2016 $ 22,228 (16,907 ) 5,321

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2016
Earnings Per Share [Abstract]
Basic and diluted earnings per share	Basic and diluted earnings per share has been computed based on the following: Three Months ended (Dollars in thousands, except per share data) March 31, March 31, Net income available to common stockholders, basic and diluted $ 28,682 27,670 Average outstanding shares - basic 76,126,251 75,206,348 Add: dilutive stock options and awards 47,166 38,611 Average outstanding shares - diluted 76,173,417 75,244,959 Basic earnings per share $ 0.38 0.37 Diluted earnings per share $ 0.38 0.37

Fair Value of Assets and Liab31

Fair Value of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2016
Fair Value Disclosures [Abstract]
Fair value measurement of assets and liabilities measured at fair value on a recurring basis	The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value March 31, 2016 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. government and federal agency $ 45,687 — 45,687 — U.S. government sponsored enterprises 68,773 — 68,773 — State and local governments 901,133 — 901,133 — Corporate bonds 442,875 — 442,875 — Residential mortgage-backed securities 1,146,157 — 1,146,157 — Total assets measured at fair value on a recurring basis $ 2,604,625 — 2,604,625 — Interest rate swaps $ 27,598 — 27,598 — Total liabilities measured at fair value on a recurring basis $ 27,598 — 27,598 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2015 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. government and federal agency $ 47,451 — 47,451 — U.S. government sponsored enterprises 93,167 — 93,167 — State and local governments 885,019 — 885,019 — Corporate bonds 384,163 — 384,163 — Residential mortgage-backed securities 1,200,960 — 1,200,960 — Total assets measured at fair value on a recurring basis $ 2,610,760 — 2,610,760 — Interest rate swaps $ 19,499 — 19,499 — Total liabilities measured at fair value on a recurring basis $ 19,499 — 19,499 —
Fair value measurement of assets measured at fair value on a non-recurring basis	The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value March 31, 2016 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other real estate owned $ 547 — — 547 Collateral-dependent impaired loans, net of ALLL 9,691 — — 9,691 Total assets measured at fair value on a non-recurring basis $ 10,238 — — 10,238 Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2015 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other real estate owned $ 7,609 — — 7,609 Collateral-dependent impaired loans, net of ALLL 12,938 — — 12,938 Total assets measured at fair value on a non-recurring basis $ 20,547 — — 20,547
Quantitative information about assets measured at fair value on a non-recurring basis for which Level 3 inputs were used	The following tables present 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 value: Fair Value March 31, 2016 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 547 Sales comparison approach Selling costs 8.0% - 8.0% (8.0%) Collateral-dependent impaired loans, net of ALLL $ 72 Cost approach Selling costs 5.0% - 20.0% (10.8%) 5,795 Sales comparison approach Selling costs 8.0% - 10.0% (9.0%) 3,824 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 9,691 Fair Value December 31, 2015 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 4,067 Sales comparison approach Selling costs 7.0% - 10.0% (7.9%) 3,542 Combined approach Selling costs 8.0% - 8.0% (8.0%) $ 7,609 Collateral-dependent impaired loans, net of ALLL $ 162 Cost approach Selling costs 0.0% - 20.0% (6.1%) 9,465 Sales comparison approach Selling costs 8.0% - 20.0% (8.9%) Adjustment to comparables 0.0% - 5.0% (0.0%) 3,311 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 12,938 __________ 1 The range for selling costs and adjustments to comparables indicate reductions to the fair value.
Carrying amounts and estimated fair values of financial instruments	The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments: Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount March 31, 2016 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 $ 150,861 150,861 — — Investment securities, available-for-sale 2,604,625 — 2,604,625 — Investment securities, held-to-maturity 691,663 — 720,190 — Loans held for sale 40,484 40,484 — — Loans receivable, net of ALLL 5,067,122 — 4,897,887 132,426 Accrued interest receivable 47,363 47,363 — — Non-marketable equity securities 24,199 — 24,199 — Total financial assets $ 8,626,317 238,708 8,246,901 132,426 Financial liabilities Deposits $ 7,016,194 5,626,969 1,389,225 — FHLB advances 313,969 — 324,946 — Repurchase agreements and other borrowed funds 452,593 — 452,593 — Subordinated debentures 125,884 — 81,174 — Accrued interest payable 3,608 3,608 — — Interest rate swaps 27,598 — 27,598 — Total financial liabilities $ 7,939,846 5,630,577 2,275,536 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount December 31, 2015 Quoted Prices Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and cash equivalents $ 193,253 193,253 — — Investment securities, available-for-sale 2,610,760 — 2,610,760 — Investment securities, held-to-maturity 702,072 — 729,513 — Loans held for sale 56,514 56,514 — — Loans receivable, net of ALLL 4,948,984 — 4,851,934 132,649 Accrued interest receivable 44,524 44,524 — — Non-marketable equity securities 27,495 — 27,495 — Total financial assets $ 8,583,602 294,291 8,219,702 132,649 Financial liabilities Deposits $ 6,945,008 5,654,638 1,293,506 — FHLB advances 394,131 — 401,530 — Repurchase agreements and other borrowed funds 430,016 — 430,016 — Subordinated debentures 125,848 — 81,840 — Accrued interest payable 3,517 3,517 — — Interest rate swaps 19,499 — 19,499 — Total financial liabilities $ 7,918,019 5,658,155 2,226,391 —

Nature of Operations and Summ32

Nature of Operations and Summary of Significant Accounting Policies (Details Textual)	3 Months Ended
	Mar. 31, 2016
Number of Bank Divisions	13
Number of Operating Segments	1
Minimum Period Past Due to Consider Loan as Delinquent	30 days
Minimum Period Past Due to Consider Loan as Non Accrual	90 days
Minimum Number of Days Delinquent to Charge off Consumer Loans	120 days
Number of Steps to Achieve Core Revenue Recognition Principal	5
Minimum Range
Number of years for home equity loan origination term	10 years
Maximum Range
Number of years for home equity loan origination term	20 years

Amortized Cost, Gross Unrealize

Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Available-for-sale
Amortized Cost	$ 2,568,341	$ 2,588,013
Gross Unrealized Gains	46,583	41,065
Gross Unrealized Losses	(10,299)	(18,318)
Fair Value	2,604,625	2,610,760
Held-to-maturity
Amortized Cost	691,663	702,072
Gross Unrealized Gains	33,081	31,863
Gross Unrealized Losses	(4,554)	(4,422)
Fair Value	720,190	729,513
Total
Amortized Cost	3,260,004	3,290,085
Gross Unrealized Gains	79,664	72,928
Gross Unrealized Losses	(14,853)	(22,740)
Fair Value	3,324,815	3,340,273
U.S. government and federal agency
Available-for-sale
Amortized Cost	45,957	47,868
Gross Unrealized Gains	18	15
Gross Unrealized Losses	(288)	(432)
Fair Value	45,687	47,451
U.S. government sponsored enterprises
Available-for-sale
Amortized Cost	68,100	93,230
Gross Unrealized Gains	673	100
Gross Unrealized Losses	0	(163)
Fair Value	68,773	93,167
State and local governments
Available-for-sale
Amortized Cost	870,239	856,738
Gross Unrealized Gains	36,720	34,159
Gross Unrealized Losses	(5,826)	(5,878)
Fair Value	901,133	885,019
Held-to-maturity
Amortized Cost	691,663	702,072
Gross Unrealized Gains	33,081	31,863
Gross Unrealized Losses	(4,554)	(4,422)
Fair Value	720,190	729,513
Corporate bonds
Available-for-sale
Amortized Cost	443,632	386,629
Gross Unrealized Gains	738	611
Gross Unrealized Losses	(1,495)	(3,077)
Fair Value	442,875	384,163
Residential mortgage-backed securities
Available-for-sale
Amortized Cost	1,140,413	1,203,548
Gross Unrealized Gains	8,434	6,180
Gross Unrealized Losses	(2,690)	(8,768)
Fair Value	$ 1,146,157	$ 1,200,960

Investment Securities Maturity

Investment Securities Maturity Schedule (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Available-for-Sale, Amortized Cost
Due within one year		$ 150,150
Due after one year through five years		503,233
Due after five years through ten years		144,750
Due after ten years		629,795
Total before residential mortgage-backed securities		1,427,928
Total		2,568,341	$ 2,588,013
Available-for-Sale, Fair Value
Due within one year		150,764
Due after one year through five years		503,879
Due after five years through ten years		149,613
Due after ten years		654,212
Total before residential mortgage-backed securities		1,458,468
Total		2,604,625	2,610,760
Held-to-Maturity, Amortized Cost
Due within one year		0
Due after one year through five years		0
Due after five years through ten years		28,545
Due after ten years		663,118
Total before residential mortgage-backed securities		691,663
Amortized Cost		691,663	702,072
Held-to-Maturity, Fair Value
Due within one year		0
Due after one year through five years		0
Due after five years through ten years		29,370
Due after ten years		690,820
Total before residential mortgage-backed securities		720,190
Total		720,190	729,513
Residential mortgage-backed securities
Available-for-Sale, Amortized Cost
Residential mortgage-backed securities	[1]	1,140,413
Total		1,140,413	1,203,548
Available-for-Sale, Fair Value
Residential mortgage-backed securities	[1]	1,146,157
Total		1,146,157	$ 1,200,960
Held-to-Maturity, Amortized Cost
Residential mortgage-backed securities	[1]	0
Held-to-Maturity, Fair Value
Residential mortgage-backed securities	[1]	$ 0
[1]	Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.

Proceeds From Sales and Calls o

Proceeds From Sales and Calls of Investment Securities and Associates Gains or Losses (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Available-for-sale
Proceeds from sales and calls of investment securities		$ 58,623	$ 62,703
Gross realized gains	[1]	800	39
Gross realized losses	[1]	(739)	(35)
Held-to-maturity
Proceeds from calls of investment securities		11,155	460
Gross realized gains	[1]	47	1
Gross realized losses	[1]	$ 0	$ 0
[1]	The gain or loss on the sale or call of each investment security is determined by the specific identification method.

Investment with an Unrealized L

Investment with an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Available-for-sale, Fair Value
Less than 12 Months	$ 520,654	$ 1,163,595
12 Months or More	284,198	182,928
Total	804,852	1,346,523
Available-for-sale, Unrealized Loss
Less than 12 Months	(3,331)	(11,262)
12 Months or More	(6,968)	(7,056)
Total	(10,299)	(18,318)
Held-to-maturity, Fair Value
Less than 12 Months	16,230	42,322
12 Months or More	108,674	81,709
Total	124,904	124,031
Held-to-maturity, Unrealized Loss
Less than 12 Months	(209)	(594)
12 Months or More	(4,345)	(3,828)
Total	(4,554)	(4,422)
U.S. government and federal agency
Available-for-sale, Fair Value
Less than 12 Months	2,291	42,493
12 Months or More	39,478	2
Total	41,769	42,495
Available-for-sale, Unrealized Loss
Less than 12 Months	(5)	(432)
12 Months or More	(283)	0
Total	(288)	(432)
U.S. government sponsored enterprises
Available-for-sale, Fair Value
Less than 12 Months		60,010
12 Months or More		0
Total		60,010
Available-for-sale, Unrealized Loss
Less than 12 Months		(163)
12 Months or More		0
Total		(163)
State and local governments
Available-for-sale, Fair Value
Less than 12 Months	50,820	102,422
12 Months or More	145,853	115,943
Total	196,673	218,365
Available-for-sale, Unrealized Loss
Less than 12 Months	(444)	(1,629)
12 Months or More	(5,382)	(4,249)
Total	(5,826)	(5,878)
Held-to-maturity, Fair Value
Less than 12 Months	16,230	42,322
12 Months or More	108,674	81,709
Total	124,904	124,031
Held-to-maturity, Unrealized Loss
Less than 12 Months	(209)	(594)
12 Months or More	(4,345)	(3,828)
Total	(4,554)	(4,422)
Corporate bonds
Available-for-sale, Fair Value
Less than 12 Months	208,048	228,258
12 Months or More	33,786	13,962
Total	241,834	242,220
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,227)	(1,812)
12 Months or More	(268)	(1,265)
Total	(1,495)	(3,077)
Residential mortgage-backed securities
Available-for-sale, Fair Value
Less than 12 Months	259,495	730,412
12 Months or More	65,081	53,021
Total	324,576	783,433
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,655)	(7,226)
12 Months or More	(1,035)	(1,542)
Total	$ (2,690)	$ (8,768)

Investment Securities (Details

Investment Securities (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Other-than-temporary impairment on investment securities	$ 0	$ 0

Loans Receivable, Net Summary o

Loans Receivable, Net Summary of Loans Receivable (Details) - USD ($)		Mar. 31, 2016	Dec. 31, 2015
Summary of Loans Receivable
Loans receivable	[1]	$ 5,197,193,000	$ 5,078,681,000
Allowance for loan and lease losses		(130,071,000)	(129,697,000)
Loans receivable, net		$ 5,067,122,000	$ 4,948,984,000
Weighted Average Interest Rate on Loans		4.81%	4.84%
Net deferred fees, costs, premiums, and discounts included in loans receivable		$ 14,010,000	$ 15,529,000
Residential Real Estate
Summary of Loans Receivable
Loans receivable		685,026,000	688,912,000
Allowance for loan and lease losses		(13,196,000)	(14,427,000)
Commercial Real Estate
Summary of Loans Receivable
Loans receivable		2,680,691,000	2,633,953,000
Allowance for loan and lease losses		(67,046,000)	(67,877,000)
Other Commercial
Summary of Loans Receivable
Loans receivable		1,172,956,000	1,099,564,000
Allowance for loan and lease losses		(36,054,000)	(32,525,000)
Total Commercial
Summary of Loans Receivable
Loans receivable		3,853,647,000	3,733,517,000
Home Equity
Summary of Loans Receivable
Loans receivable		423,895,000	420,901,000
Allowance for loan and lease losses		(8,149,000)	(8,998,000)
Other Consumer
Summary of Loans Receivable
Loans receivable		234,625,000	235,351,000
Allowance for loan and lease losses		(5,626,000)	(5,870,000)
Total Consumer and Other
Summary of Loans Receivable
Loans receivable		$ 658,520,000	$ 656,252,000
[1]	Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015, respectively.

ALLL Activity (Details)

ALLL Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Allowance for loan and lease losses
Balance at beginning of period	$ 129,697	$ 129,753
Provision for loan losses	568	765
Charge-offs	(1,163)	(1,297)
Recoveries	969	635
Balance at end of period	130,071	129,856
Residential Real Estate
Allowance for loan and lease losses
Balance at beginning of period	14,427	14,680
Provision for loan losses	(1,149)	440
Charge-offs	(100)	(14)
Recoveries	18	25
Balance at end of period	13,196	15,131
Commercial Real Estate
Allowance for loan and lease losses
Balance at beginning of period	67,877	67,799
Provision for loan losses	(873)	(286)
Charge-offs	(253)	(445)
Recoveries	295	259
Balance at end of period	67,046	67,327
Other Commercial
Allowance for loan and lease losses
Balance at beginning of period	32,525	30,891
Provision for loan losses	3,720	1,112
Charge-offs	(324)	(694)
Recoveries	133	206
Balance at end of period	36,054	31,515
Home Equity
Allowance for loan and lease losses
Balance at beginning of period	8,998	9,963
Provision for loan losses	(793)	(459)
Charge-offs	(229)	(31)
Recoveries	173	46
Balance at end of period	8,149	9,519
Other Consumer
Allowance for loan and lease losses
Balance at beginning of period	5,870	6,420
Provision for loan losses	(337)	(42)
Charge-offs	(257)	(113)
Recoveries	350	99
Balance at end of period	$ 5,626	$ 6,364

ALLL and Loans Receivable Summa

ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		$ 8,440	$ 8,124
Collectively evaluated for impairment		121,631	121,573
Total allowance for loan and lease losses		130,071	129,697
Individually evaluated for impairment		140,866	140,773
Collectively evaluated for impairment		5,056,327	4,937,908
Total loans receivable	[1]	5,197,193	5,078,681
Residential Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		597	782
Collectively evaluated for impairment		12,599	13,645
Total allowance for loan and lease losses		13,196	14,427
Individually evaluated for impairment		21,041	20,767
Collectively evaluated for impairment		663,985	668,145
Total loans receivable		685,026	688,912
Commercial Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		914	1,629
Collectively evaluated for impairment		66,132	66,248
Total allowance for loan and lease losses		67,046	67,877
Individually evaluated for impairment		81,840	85,845
Collectively evaluated for impairment		2,598,851	2,548,108
Total loans receivable		2,680,691	2,633,953
Other Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		6,442	5,277
Collectively evaluated for impairment		29,612	27,248
Total allowance for loan and lease losses		36,054	32,525
Individually evaluated for impairment		27,889	23,874
Collectively evaluated for impairment		1,145,067	1,075,690
Total loans receivable		1,172,956	1,099,564
Home Equity
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		190	64
Collectively evaluated for impairment		7,959	8,934
Total allowance for loan and lease losses		8,149	8,998
Individually evaluated for impairment		6,557	6,493
Collectively evaluated for impairment		417,338	414,408
Total loans receivable		423,895	420,901
Other Consumer
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		297	372
Collectively evaluated for impairment		5,329	5,498
Total allowance for loan and lease losses		5,626	5,870
Individually evaluated for impairment		3,539	3,794
Collectively evaluated for impairment		231,086	231,557
Total loans receivable		$ 234,625	$ 235,351
[1]	Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015, respectively.

Impaired Loans (Details)

Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	$ 31,631	$ 34,683
Loans with a specific valuation allowance, Unpaid principal balance	32,794	36,157
Specific valuation allowance	8,440	8,124
Loans with a specific valuation allowance, Average balance	33,157	36,176
Loans without a specific valuation allowance, Recorded balance	109,235	106,090
Loans without a specific valuation allowance, Unpaid principal balance	136,388	132,718
Loans without a specific valuation allowance, Average balance	107,662	116,356
Recorded balance	140,866	140,773
Unpaid principal balance	169,182	168,875
Average balance	140,819	152,532
Residential Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	7,501	8,253
Loans with a specific valuation allowance, Unpaid principal balance	8,364	9,198
Specific valuation allowance	597	782
Loans with a specific valuation allowance, Average balance	7,877	6,393
Loans without a specific valuation allowance, Recorded balance	13,540	12,514
Loans without a specific valuation allowance, Unpaid principal balance	15,042	13,969
Loans without a specific valuation allowance, Average balance	13,027	13,615
Recorded balance	21,041	20,767
Unpaid principal balance	23,406	23,167
Average balance	20,904	20,008
Commercial Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	10,077	12,554
Loans with a specific valuation allowance, Unpaid principal balance	10,094	12,581
Specific valuation allowance	914	1,629
Loans with a specific valuation allowance, Average balance	11,316	15,827
Loans without a specific valuation allowance, Recorded balance	71,763	73,291
Loans without a specific valuation allowance, Unpaid principal balance	92,608	94,028
Loans without a specific valuation allowance, Average balance	72,527	78,684
Recorded balance	81,840	85,845
Unpaid principal balance	102,702	106,609
Average balance	83,843	94,511
Other Commercial
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	12,150	11,923
Loans with a specific valuation allowance, Unpaid principal balance	12,266	12,335
Specific valuation allowance	6,442	5,277
Loans with a specific valuation allowance, Average balance	12,036	11,768
Loans without a specific valuation allowance, Recorded balance	15,739	11,951
Loans without a specific valuation allowance, Unpaid principal balance	19,657	15,539
Loans without a specific valuation allowance, Average balance	13,845	15,479
Recorded balance	27,889	23,874
Unpaid principal balance	31,923	27,874
Average balance	25,881	27,247
Home Equity
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	456	102
Loans with a specific valuation allowance, Unpaid principal balance	590	109
Specific valuation allowance	190	64
Loans with a specific valuation allowance, Average balance	279	426
Loans without a specific valuation allowance, Recorded balance	6,101	6,391
Loans without a specific valuation allowance, Unpaid principal balance	6,882	7,153
Loans without a specific valuation allowance, Average balance	6,246	6,350
Recorded balance	6,557	6,493
Unpaid principal balance	7,472	7,262
Average balance	6,525	6,776
Other Consumer
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	1,447	1,851
Loans with a specific valuation allowance, Unpaid principal balance	1,480	1,934
Specific valuation allowance	297	372
Loans with a specific valuation allowance, Average balance	1,649	1,762
Loans without a specific valuation allowance, Recorded balance	2,092	1,943
Loans without a specific valuation allowance, Unpaid principal balance	2,199	2,029
Loans without a specific valuation allowance, Average balance	2,017	2,228
Recorded balance	3,539	3,794
Unpaid principal balance	3,679	3,963
Average balance	$ 3,666	$ 3,990

Loans Receivable Aging Analysis

Loans Receivable Aging Analysis (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Loan portfolio aging analysis
Non-accrual loans		$ 53,523	$ 51,133
Total past due and non-accrual loans		82,134	72,677
Current loans receivable		5,115,059	5,006,004
Total loans receivable	[1]	5,197,193	5,078,681
Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		20,663	15,801
Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		3,333	3,612
Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		4,615	2,131
Residential Real Estate
Loan portfolio aging analysis
Non-accrual loans		7,319	8,073
Total past due and non-accrual loans		11,627	13,929
Current loans receivable		673,399	674,983
Total loans receivable		685,026	688,912
Residential Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		3,365	4,895
Residential Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		110	961
Residential Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		833	0
Commercial Real Estate
Loan portfolio aging analysis
Non-accrual loans		29,747	28,819
Total past due and non-accrual loans		39,289	35,284
Current loans receivable		2,641,402	2,598,669
Total loans receivable		2,680,691	2,633,953
Commercial Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		6,644	4,393
Commercial Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		1,268	1,841
Commercial Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		1,630	231
Other Commercial
Loan portfolio aging analysis
Non-accrual loans		9,799	7,691
Total past due and non-accrual loans		20,366	13,361
Current loans receivable		1,152,590	1,086,203
Total loans receivable		1,172,956	1,099,564
Other Commercial | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		7,454	3,564
Other Commercial | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		1,106	286
Other Commercial | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		2,007	1,820
Home Equity
Loan portfolio aging analysis
Non-accrual loans		5,998	6,022
Total past due and non-accrual loans		8,774	7,918
Current loans receivable		415,121	412,983
Total loans receivable		423,895	420,901
Home Equity | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		1,930	1,601
Home Equity | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		739	280
Home Equity | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		107	15
Other Consumer
Loan portfolio aging analysis
Non-accrual loans		660	528
Total past due and non-accrual loans		2,078	2,185
Current loans receivable		232,547	233,166
Total loans receivable		234,625	235,351
Other Consumer | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		1,270	1,348
Other Consumer | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		110	244
Other Consumer | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		$ 38	$ 65
[1]	Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015, respectively.

Troubled Debt Restructurings (D

Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)Loan	Mar. 31, 2015USD ($)Loan
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	3	5
Troubled debt restructurings, Pre-modification recorded balance	$ 8,959	$ 3,085
Troubled debt restructurings, Post-modification recorded balance	$ 8,959	$ 3,085
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	6
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 174
Residential Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	0	0
Troubled debt restructurings, Pre-modification recorded balance	$ 0	$ 0
Troubled debt restructurings, Post-modification recorded balance	$ 0	$ 0
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0
Commercial Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	1	2
Troubled debt restructurings, Pre-modification recorded balance	$ 56	$ 2,182
Troubled debt restructurings, Post-modification recorded balance	$ 56	$ 2,182
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0
Other Commercial
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	1	3
Troubled debt restructurings, Pre-modification recorded balance	$ 8,755	$ 903
Troubled debt restructurings, Post-modification recorded balance	$ 8,755	$ 903
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	3
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 57
Home Equity
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	1	0
Troubled debt restructurings, Pre-modification recorded balance	$ 148	$ 0
Troubled debt restructurings, Post-modification recorded balance	$ 148	$ 0
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	2
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 116
Other Consumer
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	0	0
Troubled debt restructurings, Pre-modification recorded balance	$ 0	$ 0
Troubled debt restructurings, Post-modification recorded balance	$ 0	$ 0
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 1

Loans Receivable, Net (Details

Loans Receivable, Net (Details Textual) - USD ($)	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Loans and Leases Receivable Disclosure
TDR With Pre Modification Loan Balance for Which Oreo Was Received	$ 210,000		$ 3,595,000
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	3,531,000	$ 3,253,000
OREO Secured by Residential Real Estate	$ 1,995,000	$ 1,496,000

Goodwill Changes in the Carryin

Goodwill Changes in the Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Goodwill Roll Forward
Net carrying value at beginning of period	$ 140,638	$ 129,706
Acquisitions	0	1,137
Net carrying value at end of period	$ 140,638	$ 130,843

Net Carrying Value of Goodwill

Net Carrying Value of Goodwill (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Gross carrying value of goodwill and the accumulated impairment charge
Gross carrying value		$ 180,797	$ 180,797
Accumulated impairment charge	[1]	(40,159)	(40,159)
Net carrying value		$ 140,638	$ 140,638	$ 130,843	$ 129,706
[1]	A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

Variable Interest Entities VIE

Variable Interest Entities VIE Carrying Amounts Included in Financial Statements (Details) - Consolidated VIEs - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Consolidated VIEs
Assets	$ 58,463	$ 72,175
Liabilities	4,704	6,343
Loans Receivable
Consolidated VIEs
Assets	57,228	57,126
Premises and Equipment, Net
Consolidated VIEs
Assets	0	13,503
Accrued Interest Receivable
Consolidated VIEs
Assets	206	117
Other assets
Consolidated VIEs
Assets	1,029	1,429
Other borrowed funds
Consolidated VIEs
Liabilities	4,555	6,195
Accrued interest payable
Consolidated VIEs
Liabilities	4	9
Other liabilities
Consolidated VIEs
Liabilities	$ 145	$ 139

Variable Interest Entities Amor

Variable Interest Entities Amortization Expense and Tax Credits and Other Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments in qualified affordable housing projects
Amortization expense	$ 255	$ 252
Tax credits and other tax benefits recognized	$ 392	$ 391

Variable Interest Entities (Det

Variable Interest Entities (Details Textual)	3 Months Ended
	Mar. 31, 2016USD ($)
Variable Interest Entities
Unfunded contingent commitments	$ 4,536,000
Year in which commitments will be fulfilled	2,017
Impairment losses	$ 0
Other assets
Variable Interest Entities
Carrying value of equity investments in LIHTCs	$ 4,579,000
CDE
Variable Interest Entities
Tax credit period	7 years
LIHTC
Variable Interest Entities
Tax credit period	10 years
Tax credit compliance period	15 years

Carrying Value of Repurchase Ag

Carrying Value of Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 445,960	$ 423,414
Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements		420,967
Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements		2,447
U.S. government sponsored enterprises
Securities Sold Under Agreements to Repurchase
Repurchase Agreements		12,507
U.S. government sponsored enterprises | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements		12,507
U.S. government sponsored enterprises | Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements		0
Residential mortgage-backed securities
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	445,960	410,907
Residential mortgage-backed securities | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	443,913	408,460
Residential mortgage-backed securities | Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 2,047	$ 2,447

Securities Sold Under Agreeme51

Securities Sold Under Agreements to Repurchase Securities Sold Under Agreements to Repurchase (Details Textual) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 445,960,000	$ 423,414,000
Securities Pledged for Repurchase Agreements	$ 397,148,000	$ 446,838,000

Interest Rate Swap Summary (Det

Interest Rate Swap Summary (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Interest Rate Swap One
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 160,000
Interest Rate Swap One | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 160,000
Variable Interest Rate	3 month LIBOR	[1]
Fixed Interest Rate	3.378%	[1]
Term, Effective Date	Oct. 21, 2014
Term, Maturity Date	Oct. 21, 2021
Interest Rate Swap Two
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 100,000
Interest Rate Swap Two | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 100,000
Variable Interest Rate	3 month LIBOR	[1]
Fixed Interest Rate	2.498%	[1]
Term, Effective Date	Nov. 30, 2015
Term, Maturity Date	Nov. 30, 2022
[1]	The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.

Derivatives and Hedging Activ53

Derivatives and Hedging Activities Interest Rate Swap Gains or Losses (Details) - Interest Rate Swap - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest Expense
Pre-Tax Gains or Losses
Amount of loss reclassified from OCI to interest expense	$ (1,829)	$ (1,251)
Other Non-Interest Expense
Pre-Tax Gains or Losses
Amount of loss recognized in other non-interest expense (ineffective portion)	0	0
Other Comprehensive Income
Pre-Tax Gains or Losses
Amount of loss recognized in OCI (effective portion)	$ (9,928)	$ (5,993)

Derivatives and Hedging Activ54

Derivatives and Hedging Activities Offsetting Assets (Details) - Interest Rate Swap - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Offsetting Derivative Assets
Gross Amounts of Recognized Assets	$ 0	$ 0
Gross Amounts Offset in the Statements of Financial Position	0	0
Net Amounts of Assets Presented in the Statements of Financial Position	$ 0	$ 0

Derivatives and Hedging Activ55

Derivatives and Hedging Activities Offsetting Liabilities (Details) - Interest Rate Swap - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Offsetting Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 27,598	$ 19,499
Gross Amounts Offset in the Statements of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statements of Financial Position	$ 27,598	$ 19,499

Derivatives and Hedging Activ56

Derivatives and Hedging Activities (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest Rate Swap
Interest rate swap derivative financial instruments
Interest expense recorded on interest rate swap	$ 1,998,000	$ 1,351,000
Unrealized loss to be reclassified within twelve months	7,903,000
Investment securities pledged as collateral	32,673,000
Collateral pledged from the counterparties to the Company	0
Interest Rate Swap One
Interest rate swap derivative financial instruments
Forecasted Notional Amount	160,000,000
Interest Rate Swap One | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	160,000,000
Interest Rate Swap Two
Interest rate swap derivative financial instruments
Forecasted Notional Amount	100,000,000
Interest Rate Swap Two | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 100,000,000

Other Expenses (Details)

Other Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other Expenses
Debit card expenses	$ 1,849	$ 1,352
Consulting and outside services	1,014	1,471
Telephone	960	809
Printing and supplies	943	790
Postage	880	914
Loan expenses	783	609
Checking and operating expenses	694	705
VIE write-downs, losses and other expenses	639	607
Employee expenses	579	496
Accounting and audit fees	391	450
Business development	342	308
ATM expenses	255	266
Legal fees	237	265
Other	980	879
Total other expenses	$ 10,546	$ 9,921

Accumulated Other Comprehensi58

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income
Balance, beginning	$ 1,989	$ 17,744
Other comprehensive income before reclassification	2,249	(481)
Amounts reclassified from accumulated other comprehensive income	1,083	764
Net current period other comprehensive income	3,332	283
Balance, end	5,321	18,027
Available-For-Sale Securities
Accumulated Other Comprehensive Income
Balance, beginning	13,935	27,945
Other comprehensive income before reclassification	8,331	3,201
Amounts reclassified from accumulated other comprehensive income	(38)	(3)
Net current period other comprehensive income	8,293	3,198
Balance, end	22,228	31,143
Derivatives Used for Cash Flow Hedges
Accumulated Other Comprehensive Income
Balance, beginning	(11,946)	(10,201)
Other comprehensive income before reclassification	(6,082)	(3,682)
Amounts reclassified from accumulated other comprehensive income	1,121	767
Net current period other comprehensive income	(4,961)	(2,915)
Balance, end	$ (16,907)	$ (13,116)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Basic and Diluted Earnings Per Share
Net income available to common stockholders, basic and diluted	$ 28,682	$ 27,670
Average outstanding shares - basic	76,126,251	75,206,348
Add: dilutive stock options and awards	47,166	38,611
Average outstanding shares - diluted	76,173,417	75,244,959
Basic earnings per share	$ 0.38	$ 0.37
Diluted earnings per share	$ 0.38	$ 0.37
Earnings Per Share
Stock options and restricted stock awards excluded from the diluted average outstanding share calculation	0	0

Fair Value Measurements on a Re

Fair Value Measurements on a Recurring Basis (Details) - Recurring Measurements - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financial Assets
Total assets measured at fair value on a recurring basis	$ 2,604,625	$ 2,610,760
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	27,598	19,499
Interest rate swaps
Financial Liabilities
Interest rate swaps	27,598	19,499
U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	45,687	47,451
U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	68,773	93,167
State and local governments
Financial Assets
Investment securities, available-for-sale	901,133	885,019
Corporate bonds
Financial Assets
Investment securities, available-for-sale	442,875	384,163
Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	1,146,157	1,200,960
Level 1
Financial Assets
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	0	0
Level 1 | Interest rate swaps
Financial Liabilities
Interest rate swaps	0	0
Level 1 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | State and local governments
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	0	0
Level 2
Financial Assets
Total assets measured at fair value on a recurring basis	2,604,625	2,610,760
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	27,598	19,499
Level 2 | Interest rate swaps
Financial Liabilities
Interest rate swaps	27,598	19,499
Level 2 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	45,687	47,451
Level 2 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	68,773	93,167
Level 2 | State and local governments
Financial Assets
Investment securities, available-for-sale	901,133	885,019
Level 2 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	442,875	384,163
Level 2 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	1,146,157	1,200,960
Level 3
Financial Assets
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	0	0
Level 3 | Interest rate swaps
Financial Liabilities
Interest rate swaps	0	0
Level 3 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | State and local governments
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	$ 0	$ 0

Fair Value Measurements on a No

Fair Value Measurements on a Non-Recurring Basis (Details) - Non-Recurring Measurements - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 547	$ 7,609
Collateral-dependent impaired loans, net of ALLL	9,691	12,938
Total assets measured at fair value on a non-recurring basis	10,238	20,547
Level 1
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 2
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 3
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	547	7,609
Collateral-dependent impaired loans, net of ALLL	9,691	12,938
Total assets measured at fair value on a non-recurring basis	$ 10,238	$ 20,547

Quantitative Information about

Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2016	Dec. 31, 2015
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 10,238	$ 20,547
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		10,238	20,547
Other real estate owned | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value			7,609
Other real estate owned | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 547	4,067
Other real estate owned | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value			$ 3,542
Other real estate owned | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	7.00%
Adjustment to Comparables	[1]		0.00%
Other real estate owned | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	8.00%
Discount Rate	[1]		0.00%
Other real estate owned | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Adjustment to Comparables	[1]		0.00%
Other real estate owned | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	8.00%
Discount Rate	[1]		0.00%
Other real estate owned | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	7.90%
Adjustment to Comparables	[1]		0.00%
Other real estate owned | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	8.00%
Discount Rate	[1]		0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 9,691	$ 12,938
Collateral-dependent Impaired Loans, Net of ALLL | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		5,795	9,465
Collateral-dependent Impaired Loans, Net of ALLL | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		3,824	3,311
Collateral-dependent Impaired Loans, Net of ALLL | Cost Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 72	$ 162
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	8.00%
Adjustment to Comparables	[1]	0.00%	0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	5.00%	0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		0.00%
Discount Rate	[1]		0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	20.00%
Adjustment to Comparables	[1]	0.00%	5.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		0.00%
Discount Rate	[1]		0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	9.00%	8.90%
Adjustment to Comparables	[1]	0.00%	0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.80%	6.10%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		0.00%
Discount Rate	[1]		0.00%
[1]	The range for selling costs and adjustments to comparables indicate reductions to the fair value.

Carrying Amount and Fair Value

Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Carrying Amount
Financial assets
Cash and cash equivalents	$ 150,861	$ 193,253
Investment securities, available-for-sale	2,604,625	2,610,760
Investment securities, held-to-maturity	691,663	702,072
Loans held for sale	40,484	56,514
Loans receivable, net of ALLL	5,067,122	4,948,984
Accrued interest receivable	47,363	44,524
Non-marketable equity securities	24,199	27,495
Total financial assets	8,626,317	8,583,602
Financial liabilities
Deposits	7,016,194	6,945,008
FHLB advances	313,969	394,131
Repurchase agreements and other borrowed funds	452,593	430,016
Subordinated debentures	125,884	125,848
Accrued interest payable	3,608	3,517
Interest rate swaps	27,598	19,499
Total financial liabilities	7,939,846	7,918,019
Estimated Fair Value | Level 1
Financial assets
Cash and cash equivalents	150,861	193,253
Investment securities, available-for-sale	0	0
Investment securities, held-to-maturity	0	0
Loans held for sale	40,484	56,514
Loans receivable, net of ALLL	0	0
Accrued interest receivable	47,363	44,524
Non-marketable equity securities	0	0
Total financial assets	238,708	294,291
Financial liabilities
Deposits	5,626,969	5,654,638
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Accrued interest payable	3,608	3,517
Interest rate swaps	0	0
Total financial liabilities	5,630,577	5,658,155
Estimated Fair Value | Level 2
Financial assets
Cash and cash equivalents	0	0
Investment securities, available-for-sale	2,604,625	2,610,760
Investment securities, held-to-maturity	720,190	729,513
Loans held for sale	0	0
Loans receivable, net of ALLL	4,897,887	4,851,934
Accrued interest receivable	0	0
Non-marketable equity securities	24,199	27,495
Total financial assets	8,246,901	8,219,702
Financial liabilities
Deposits	1,389,225	1,293,506
FHLB advances	324,946	401,530
Repurchase agreements and other borrowed funds	452,593	430,016
Subordinated debentures	81,174	81,840
Accrued interest payable	0	0
Interest rate swaps	27,598	19,499
Total financial liabilities	2,275,536	2,226,391
Estimated Fair Value | Level 3
Financial assets
Cash and cash equivalents	0	0
Investment securities, available-for-sale	0	0
Investment securities, held-to-maturity	0	0
Loans held for sale	0	0
Loans receivable, net of ALLL	132,426	132,649
Accrued interest receivable	0	0
Non-marketable equity securities	0	0
Total financial assets	132,426	132,649
Financial liabilities
Deposits	0	0
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Total financial liabilities	$ 0	$ 0

Subsequent Event (Details Textu

Subsequent Event (Details Textual) - USD ($)		Apr. 20, 2016	Mar. 31, 2016	Dec. 31, 2015
Subsequent Event
Total assets			$ 9,120,742,000	$ 9,089,232,000
Gross loans	[1]		$ 5,197,193,000	$ 5,078,681,000
Treasure State Bank
Subsequent Event
Subsequent Event, Description		the Company announced the signing of a definitive agreement to acquire Treasure State Bank, a community bank based in Missoula, Montana
Total assets		$ 71,000,000
Gross loans		53,000,000
Total deposits		$ 58,000,000
[1]	Includes net deferred fees, costs, premiums and discounts of $14,010,000 and $15,529,000 at March 31, 2016 and December 31, 2015, respectively.