Glacier Bancorp (GBCI) 10-Q 4 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 28, 2015
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	Jun. 30, 2015
Amendment Flag	false
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		75,532,082

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Assets
Cash on hand and in banks		$ 120,783	$ 122,834
Federal funds sold		0	1,025
Interest bearing cash deposits		234,936	318,550
Cash and cash equivalents		355,719	442,409
Investment securities, available-for-sale		2,361,830	2,387,428
Investment securities, held-to-maturity		593,314	520,997
Total investment securities		2,955,144	2,908,425
Loans held for sale		53,201	46,726
Loans receivable	[1]	4,807,431	4,488,095
Allowance for loan and lease losses		(130,519)	(129,753)
Loans receivable, net		4,676,912	4,358,342
Premises and equipment, net		186,858	179,175
Other real estate owned		26,686	27,804
Accrued interest receivable		44,563	40,587
Deferred tax asset		56,571	41,737
Core deposit intangible, net		11,501	10,900
Goodwill		130,843	129,706
Non-marketable equity securities		24,914	52,868
Other assets		66,898	67,828
Total assets		8,589,810	8,306,507
Liabilities
Non-interest bearing deposits		1,731,015	1,632,403
Interest bearing deposits		4,827,642	4,712,809
Securities sold under agreements to repurchase		408,935	397,107
Federal Home Loan Bank advances		329,470	296,944
Other borrowed funds		6,665	7,311
Subordinated debentures		125,776	125,705
Accrued interest payable		3,790	4,155
Other liabilities		100,066	102,026
Total liabilities		7,533,359	7,278,460
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		755	750
Paid-in capital		720,073	708,356
Retained earnings - substantially restricted		330,183	301,197
Accumulated other comprehensive income		5,440	17,744
Total stockholders' equity		1,056,451	1,028,047
Total liabilities and stockholders' equity		$ 8,589,810	$ 8,306,507
Number of common stock shares issued and outstanding		75,531,258	75,026,092
[1]	Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014, respectively.

Unaudited Condensed Consolidat3

Unaudited Condensed Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Income
Residential real estate loans	$ 7,942	$ 7,220	$ 15,703	$ 14,307
Commercial loans	40,698	35,267	79,720	70,309
Consumer and other loans	8,018	7,583	15,762	15,226
Investment securities	21,959	23,893	44,918	48,208
Total interest income	78,617	73,963	156,103	148,050
Interest Expense
Deposits	4,112	3,061	8,259	6,150
Securities sold under agreements to repurchase	232	192	473	402
Federal Home Loan Bank advances	2,217	2,447	4,412	4,961
Other borrowed funds	15	48	42	101
Subordinated debentures	793	780	1,565	1,554
Total interest expense	7,369	6,528	14,751	13,168
Net Interest Income	71,248	67,435	141,352	134,882
Provision for loan losses	282	239	1,047	1,361
Net interest income after provision for loan losses	70,966	67,196	140,305	133,521
Non-Interest Income
Service charges and other fees	14,303	13,547	27,302	25,766
Miscellaneous loan fees and charges	1,142	1,200	2,299	2,229
Gain on sale of loans	7,600	4,778	13,030	8,373
Loss on sale of investments	(98)	(48)	(93)	(99)
Other income	2,855	3,027	5,957	5,623
Total non-interest income	25,802	22,504	48,495	41,892
Non-Interest Expense
Compensation and employee benefits	32,729	28,988	64,973	57,622
Occupancy and equipment	7,810	6,733	15,172	13,346
Advertising and promotions	2,240	1,948	4,167	3,725
Data processing	1,593	2,032	2,842	3,320
Other real estate owned	1,377	566	2,135	1,073
Regulatory assessments and insurance	1,006	1,028	2,311	2,620
Core deposit intangibles amortization	755	693	1,486	1,403
Other expenses	12,435	10,685	22,356	19,634
Total non-interest expense	59,945	52,673	115,442	102,743
Income Before Income Taxes	36,823	37,027	73,358	72,670
Federal and state income tax expense	7,488	8,350	16,353	17,263
Net Income	$ 29,335	$ 28,677	$ 57,005	$ 55,407
Basic earnings per share	$ 0.39	$ 0.38	$ 0.76	$ 0.74
Diluted earnings per share	0.39	0.38	0.76	0.74
Dividends declared per share	$ 0.19	$ 0.17	$ 0.37	$ 0.33
Average outstanding shares - basic	75,530,591	74,467,576	75,369,366	74,452,568
Average outstanding shares - diluted	75,565,655	74,499,660	75,407,621	74,491,459

Unaudited Condensed Consolidat5

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 29,335	$ 28,677	$ 57,005	$ 55,407
Other Comprehensive (Loss) Income, Net of Tax
Unrealized (losses) gains on available-for-sale securities	(25,750)	20,714	(20,569)	35,317
Reclassification adjustment for losses included in net income	49	48	45	121
Net unrealized (losses) gains on available-for-sale securities	(25,701)	20,762	(20,524)	35,438
Tax effect	9,957	(8,056)	7,978	(13,736)
Net of tax amount	(15,744)	12,706	(12,546)	21,702
Unrealized gains (losses) on derivatives used for cash flow hedges	3,896	(6,190)	(2,097)	(11,669)
Reclassification adjustment for losses included in net income	1,257	0	2,508	0
Net unrealized gains (losses) on derivatives used for cash flow hedges	5,153	(6,190)	411	(11,669)
Tax effect	(1,996)	2,402	(169)	4,528
Net of tax amount	3,157	(3,788)	242	(7,141)
Total other comprehensive (loss) income, net of tax	(12,587)	8,918	(12,304)	14,561
Total Comprehensive Income	$ 16,748	$ 37,595	$ 44,701	$ 69,968

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, 2013		74,373,296
Balance, beginning at Dec. 31, 2013	$ 963,250	$ 744	$ 690,918	$ 261,943	$ 9,645
Net income	55,407			55,407
Comprehensive income, accumulated other comprehensive income	14,561				14,561
Comprehensive income, total	69,968
Cash dividends declared	(24,629)			(24,629)
Stock issuances under stock incentive plans, shares		94,612
Stock issuances under stock incentive plans, value	764	$ 1	763
Stock-based compensation and related taxes	662		662
Balance, ending, shares at Jun. 30, 2014		74,467,908
Balance, ending at Jun. 30, 2014	$ 1,010,015	$ 745	692,343	292,721	24,206
Balance, beginning, shares at Dec. 31, 2014	75,026,092	75,026,092
Balance, beginning at Dec. 31, 2014	$ 1,028,047	$ 750	708,356	301,197	17,744
Net income	57,005			57,005
Comprehensive income, accumulated other comprehensive income	(12,304)				(12,304)
Comprehensive income, total	44,701
Cash dividends declared	(28,019)			(28,019)
Stock issuances under stock incentive plans, shares		61,522
Stock issuances under stock incentive plans, value	(299)	$ 1	(300)
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	$ 1,245		1,245
Balance, ending, shares at Jun. 30, 2015	75,531,258	75,531,258
Balance, ending at Jun. 30, 2015	$ 1,056,451	$ 755	$ 720,073	$ 330,183	$ 5,440

Unaudited Condensed Consolidat7

Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash dividends declared per share	$ 0.37	$ 0.33
Retained Earnings Substantially Restricted
Cash dividends declared per share	$ 0.37	$ 0.33

Unaudited Condensed Consolidat8

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net income	$ 57,005	$ 55,407
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,047	1,361
Net amortization of investment securities premiums and discounts	13,376	14,606
Loans held for sale originated or acquired	(449,630)	(293,098)
Proceeds from sales of loans held for sale	460,799	298,399
Gain on sale of loans	(13,030)	(8,373)
Loss on sale of investments	93	99
Stock-based compensation expense, net of tax benefits	700	437
Excess tax (benefits) deficiencies from stock-based compensation	(102)	14
Depreciation of premises and equipment	6,658	5,545
Loss (gain) on sale of other real estate owned and write-downs, net	619	(969)
Amortization of core deposit intangibles	1,486	1,403
Net (increase) decrease in accrued interest receivable	(3,173)	133
Net decrease (increase) in other assets	3,983	(1,870)
Net decrease in accrued interest payable	(496)	(342)
Net (decrease) increase in other liabilities	(2,405)	2,960
Net cash provided by operating activities	76,930	75,712
Investing Activities
Sales of available-for-sale securities	35,558	16,639
Maturities, prepayments and calls of available-for-sale securities	346,230	309,569
Purchases of available-for-sale securities	(347,212)	(121,671)
Maturities, prepayments and calls of held-to-maturity securities	10,065	3,930
Purchases of held-to-maturity securities	(83,004)	(7,873)
Principal collected on loans	723,316	630,875
Loans originated or acquired	(967,774)	(783,843)
Net addition of premises and equipment and other real estate owned	(7,403)	(5,614)
Proceeds from sale of other real estate owned	6,288	6,730
Net sale (purchase) of non-marketable equity securities	29,877	(523)
Net cash received in acquisitions	19,712	0
Net cash (used in) provided by investing activities	(234,347)	48,219
Financing Activities
Net increase in deposits	66,625	165,869
Net increase in securities sold under agreements to repurchase	10,472	1,846
Net decrease in short-term Federal Home Loan Bank advances	0	(256,000)
Proceeds from long-term Federal Home Loan Bank advances	50,000	175,000
Repayments of long-term Federal Home Loan Bank advances	(19,410)	(151,877)
Net decrease in other borrowed funds	(575)	(949)
Cash dividends paid	(36,188)	(11,942)
Excess tax benefits (deficiencies) from stock-based compensation	102	(14)
Stock-based compensation activity	(299)	837
Net cash provided by (used in) financing activities	70,727	(77,230)
Net (decrease) increase in cash and cash equivalents	(86,690)	46,701
Cash and cash equivalents at beginning of period	442,409	155,657
Cash and cash equivalents at end of period	355,719	202,358
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	15,248	13,510
Cash paid during the period for income taxes	15,961	16,818
Supplemental Disclosure of Non-Cash Investing Activities
Transfer of investment securities from available-for-sale to held-to-maturity	0	484,583
Sale and refinancing of other real estate owned	265	501
Transfer of loans to other real estate owned	5,181	5,740
Fair value of common stock shares issued	10,776	0
Cash consideration for outstanding shares	12,219	0
Fair value of assets acquired	174,637	0
Liabilities assumed	$ 152,779	$ 0

Nature of Operations and Summar

Nature of Operations and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2015
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 June 30, 2015 , the results of operations and comprehensive income for the three and six month periods ended June 30, 2015 and 2014 , and changes in stockholders’ equity and cash flows for the six month periods ended June 30, 2015 and 2014 . The condensed consolidated statement of financial condition of the Company as of December 31, 2014 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, 2014 . Operating results for the six months ended June 30, 2015 are not necessarily indicative of the results anticipated for the year ending December 31, 2015 . 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 a majority of the expected losses and/or receive a majority of the expected residual returns. 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. Each of 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 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”). In August 2014, the Company completed its acquisition of FNBR Holding Corporation and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado. 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. 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. Impact of Recent Authoritative Accounting Guidance The Accounting Standards Codification ™ (“ASC”) is the Financial Accounting Standards Board’s (“FASB”) 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 February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and ends 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 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 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. For public entities, the amendments are effective for annual reporting periods beginning after December 15, 2016, including interim periods within the reporting period. Early application is not permitted. The entity should apply the amendments using one of two retrospective methods described in the amendment. 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 2014, FASB amended FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. The amendments permit entities to make an accounting policy election for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense. The amendments should be applied retrospectively 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, 2014. The adoption of these amendments did not have a material effect on the Company’s financial position or results of operations.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2015
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: June 30, 2015 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 51,889 13 (405 ) 51,497 U.S. government sponsored enterprises 81,085 32 (356 ) 80,761 State and local governments 938,088 29,310 (9,346 ) 958,052 Corporate bonds 355,140 1,482 (773 ) 355,849 Residential mortgage-backed securities 910,491 11,298 (6,118 ) 915,671 Total available-for-sale 2,336,693 42,135 (16,998 ) 2,361,830 Held-to-maturity State and local governments 593,314 23,308 (7,841 ) 608,781 Total held-to-maturity 593,314 23,308 (7,841 ) 608,781 Total investment securities $ 2,930,007 65,443 (24,839 ) 2,970,611 December 31, 2014 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 44 — — 44 U.S. government sponsored enterprises 21,916 31 (2 ) 21,945 State and local governments 962,365 40,173 (4,569 ) 997,969 Corporate bonds 313,545 2,059 (750 ) 314,854 Residential mortgage-backed securities 1,043,897 11,205 (2,486 ) 1,052,616 Total available-for-sale 2,341,767 53,468 (7,807 ) 2,387,428 Held-to-maturity State and local governments 520,997 32,925 (2,976 ) 550,946 Total held-to-maturity 520,997 32,925 (2,976 ) 550,946 Total investment securities $ 2,862,764 86,393 (10,783 ) 2,938,374 The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at June 30, 2015 . Actual maturities may differ from expected or contractual maturities since borrowers have the right to prepay obligations with or without prepayment penalties. June 30, 2015 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 130,166 130,744 — — Due after one year through five years 449,624 451,570 — — Due after five years through ten years 137,566 139,651 5,462 5,384 Due after ten years 708,846 724,194 587,852 603,397 1,426,202 1,446,159 593,314 608,781 Residential mortgage-backed securities 1 910,491 915,671 — — Total $ 2,336,693 2,361,830 593,314 608,781 __________ 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 Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Available-for-sale Proceeds from sales and calls of investment securities $ 11,918 21,773 74,621 33,700 Gross realized gains 1 43 160 82 181 Gross realized losses 1 (92 ) (208 ) (127 ) (302 ) Held-to-maturity Proceeds from calls of investment securities 9,605 — 10,065 3,930 Gross realized gains 1 14 — 15 22 Gross realized losses 1 (63 ) — (63 ) — __________ 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: June 30, 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 $ 48,276 (405 ) 3 — 48,279 (405 ) U.S. government sponsored enterprises 64,511 (356 ) — — 64,511 (356 ) State and local governments 228,286 (5,018 ) 106,178 (4,328 ) 334,464 (9,346 ) Corporate bonds 128,016 (736 ) 3,635 (37 ) 131,651 (773 ) Residential mortgage-backed securities 271,261 (4,307 ) 48,782 (1,811 ) 320,043 (6,118 ) Total available-for-sale $ 740,350 (10,822 ) 158,598 (6,176 ) 898,948 (16,998 ) Held-to-maturity State and local governments $ 126,065 (4,113 ) 65,860 (3,728 ) 191,925 (7,841 ) Total held-to-maturity $ 126,065 (4,113 ) 65,860 (3,728 ) 191,925 (7,841 ) December 31, 2014 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 $ — — 3 — 3 — U.S. government sponsored enterprises 13,793 (2 ) — — 13,793 (2 ) State and local governments 91,082 (1,273 ) 115,927 (3,296 ) 207,009 (4,569 ) Corporate bonds 60,289 (545 ) 7,874 (205 ) 68,163 (750 ) Residential mortgage-backed securities 192,962 (926 ) 78,223 (1,560 ) 271,185 (2,486 ) Total available-for-sale $ 358,126 (2,746 ) 202,027 (5,061 ) 560,153 (7,807 ) Held-to-maturity State and local governments $ 18,643 (624 ) 76,761 (2,352 ) 95,404 (2,976 ) Total held-to-maturity $ 18,643 (624 ) 76,761 (2,352 ) 95,404 (2,976 ) Based on an analysis of its investment securities with unrealized losses as of June 30, 2015 and December 31, 2014 , 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 June 30, 2015 , 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	6 Months Ended
	Jun. 30, 2015
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) June 30, December 31, Residential real estate loans $ 635,674 611,463 Commercial loans Real estate 2,454,369 2,337,548 Other commercial 1,074,905 925,900 Total 3,529,274 3,263,448 Consumer and other loans Home equity 410,708 394,670 Other consumer 231,775 218,514 Total 642,483 613,184 Loans receivable 1 4,807,431 4,488,095 Allowance for loan and lease losses (130,519 ) (129,753 ) Loans receivable, net $ 4,676,912 4,358,342 __________ 1 Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014 , respectively. 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 summarize the activity in the ALLL by portfolio segment: Three Months ended June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,856 15,131 67,327 31,515 9,519 6,364 Provision for loan losses 282 (258 ) 491 532 (559 ) 76 Charge-offs (1,301 ) (44 ) (303 ) (675 ) (122 ) (157 ) Recoveries 1,682 21 1,182 111 108 260 Balance at end of period $ 130,519 14,850 68,697 31,483 8,946 6,543 Three Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 130,729 14,066 70,571 28,484 9,426 8,182 Provision for loan losses 239 915 (2,229 ) 1,334 308 (89 ) Charge-offs (1,738 ) (377 ) (83 ) (586 ) (186 ) (506 ) Recoveries 1,406 20 670 357 177 182 Balance at end of period $ 130,636 14,624 68,929 29,589 9,725 7,769 Six Months ended June 30, 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 1,047 182 205 1,644 (1,018 ) 34 Charge-offs (2,598 ) (58 ) (748 ) (1,369 ) (153 ) (270 ) Recoveries 2,317 46 1,441 317 154 359 Balance at end of period $ 130,519 14,850 68,697 31,483 8,946 6,543 Six Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 130,351 14,067 70,332 28,630 9,299 8,023 Provision for loan losses 1,361 737 (2,189 ) 2,267 511 35 Charge-offs (3,324 ) (413 ) (264 ) (1,749 ) (299 ) (599 ) Recoveries 2,248 233 1,050 441 214 310 Balance at end of period $ 130,636 14,624 68,929 29,589 9,725 7,769 The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment: June 30, 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 $ 7,254 793 2,546 3,306 111 498 Collectively evaluated for impairment 123,265 14,057 66,151 28,177 8,835 6,045 Total allowance for loan and lease losses $ 130,519 14,850 68,697 31,483 8,946 6,543 Loans receivable Individually evaluated for impairment $ 151,732 18,199 94,860 28,061 6,580 4,032 Collectively evaluated for impairment 4,655,699 617,475 2,359,509 1,046,844 404,128 227,743 Total loans receivable $ 4,807,431 635,674 2,454,369 1,074,905 410,708 231,775 December 31, 2014 (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 $ 11,597 853 2,967 6,836 447 494 Collectively evaluated for impairment 118,156 13,827 64,832 24,055 9,516 5,926 Total allowance for loan and lease losses $ 129,753 14,680 67,799 30,891 9,963 6,420 Loans receivable Individually evaluated for impairment $ 161,366 19,576 105,264 25,321 6,901 4,304 Collectively evaluated for impairment 4,326,729 591,887 2,232,284 900,579 387,769 214,210 Total loans receivable $ 4,488,095 611,463 2,337,548 925,900 394,670 218,514 The following tables disclose information related to impaired loans by portfolio segment: At or for the Three or Six Months ended June 30, 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 $ 34,014 5,055 15,111 11,862 234 1,752 Unpaid principal balance 35,374 5,186 15,505 12,184 253 2,246 Specific valuation allowance 7,254 793 2,546 3,306 111 498 Average balance - three months 34,166 5,081 14,034 13,003 319 1,729 Average balance - six months 38,006 4,757 18,408 12,461 617 1,763 Loans without a specific valuation allowance Recorded balance $ 117,718 13,144 79,749 16,199 6,346 2,280 Unpaid principal balance 146,826 14,440 101,325 21,622 7,100 2,339 Average balance - three months 122,973 13,525 82,629 18,345 6,220 2,254 Average balance - six months 120,541 14,172 81,122 16,878 6,042 2,327 Total Recorded balance $ 151,732 18,199 94,860 28,061 6,580 4,032 Unpaid principal balance 182,200 19,626 116,830 33,806 7,353 4,585 Specific valuation allowance 7,254 793 2,546 3,306 111 498 Average balance - three months 157,139 18,606 96,663 31,348 6,539 3,983 Average balance - six months 158,547 18,929 99,530 29,339 6,659 4,090 At or for the Year ended December 31, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 45,688 4,110 27,155 11,377 1,214 1,832 Unpaid principal balance 48,477 4,276 28,048 12,461 1,336 2,356 Specific valuation allowance 11,597 853 2,967 6,836 447 494 Average balance 53,339 5,480 24,519 19,874 1,039 2,427 Loans without a specific valuation allowance Recorded balance $ 115,678 15,466 78,109 13,944 5,687 2,472 Unpaid principal balance 145,038 16,683 100,266 19,117 6,403 2,569 Average balance 128,645 15,580 89,015 14,024 7,163 2,863 Total Recorded balance $ 161,366 19,576 105,264 25,321 6,901 4,304 Unpaid principal balance 193,515 20,959 128,314 31,578 7,739 4,925 Specific valuation allowance 11,597 853 2,967 6,836 447 494 Average balance 181,984 21,060 113,534 33,898 8,202 5,290 Interest income recognized on impaired loans for the six months ended June 30, 2015 and 2014 was not significant. The following tables present an aging analysis of the recorded investment in loans by portfolio segment: June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 19,801 473 10,057 6,484 1,943 844 Accruing loans 60-89 days past due 8,673 858 5,616 765 1,169 265 Accruing loans 90 days or more past due 618 — 396 33 — 189 Non-accrual loans 56,918 7,038 33,671 9,610 5,902 697 Total past due and non-accrual loans 86,010 8,369 49,740 16,892 9,014 1,995 Current loans receivable 4,721,421 627,305 2,404,629 1,058,013 401,694 229,780 Total loans receivable $ 4,807,431 635,674 2,454,369 1,074,905 410,708 231,775 December 31, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 19,139 3,506 7,925 5,310 1,374 1,024 Accruing loans 60-89 days past due 6,765 1,686 3,592 609 679 199 Accruing loans 90 days or more past due 214 35 31 74 17 57 Non-accrual loans 61,882 6,798 39,717 8,421 5,969 977 Total past due and non-accrual loans 88,000 12,025 51,265 14,414 8,039 2,257 Current loans receivable 4,400,095 599,438 2,286,283 911,486 386,631 216,257 Total loans receivable $ 4,488,095 611,463 2,337,548 925,900 394,670 218,514 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 June 30, 2015 (Dollars in thousands) Total Residential Commercial Other Home Other Troubled debt restructurings Number of loans 15 — 7 5 — 3 Pre-modification recorded balance $ 4,038 — 2,828 1,006 — 204 Post-modification recorded balance $ 3,744 — 2,748 792 — 204 Troubled debt restructurings that subsequently defaulted Number of loans 2 — — 1 — 1 Recorded balance $ 101 — — 99 — 2 Three Months ended June 30, 2014 (Dollars in thousands) Total Residential Commercial Other Home Other Troubled debt restructurings Number of loans 13 — 3 8 1 1 Pre-modification recorded balance $ 19,166 — 1,957 17,160 46 3 Post-modification recorded balance $ 19,158 — 2,000 17,109 46 3 Troubled debt restructurings that subsequently defaulted Number of loans 1 — — 1 — — Recorded balance $ 10 — — 10 — — Six Months ended June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Troubled debt restructurings Number of loans 20 — 9 8 — 3 Pre-modification recorded balance $ 7,123 — 5,010 1,909 — 204 Post-modification recorded balance $ 6,829 — 4,930 1,695 — 204 Troubled debt restructurings that subsequently defaulted Number of loans 4 — — 1 2 1 Recorded balance $ 217 — — 99 116 2 Six Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Troubled debt restructurings Number of loans 26 — 8 15 2 1 Pre-modification recorded balance $ 24,276 — 4,432 19,599 242 3 Post-modification recorded balance $ 23,639 — 4,475 18,919 242 3 Troubled debt restructurings that subsequently defaulted Number of loans 2 — — 2 — — Recorded balance $ 27 — — 27 — — The modifications for the TDRs that occurred during the six months ended June 30, 2015 and 2014 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 $5,494,000 and $6,604,000 for the six months ended June 30, 2015 and 2014 , 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 commercial real estate and residential real estate for the six months ended June 30, 2015 and 2014 , respectively. At June 30, 2015 , the Company had $1,007,000 of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At June 30, 2015 , the Company had $1,626,000 of OREO secured by residential real estate properties.

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The following schedule discloses the changes in the carrying value of goodwill: Three Months ended Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Net carrying value at beginning of period $ 130,843 129,706 129,706 129,706 Acquisitions — — 1,137 — Net carrying value at end of period $ 130,843 129,706 130,843 129,706 The gross carrying value of goodwill and the accumulated impairment charge consists of the following: (Dollars in thousands) June 30, December 31, Gross carrying value $ 171,002 169,865 Accumulated impairment charge (40,159 ) (40,159 ) Net carrying value $ 130,843 129,706 The Company performed its annual goodwill impairment test during the third quarter of 2014 and determined the fair value of the aggregated reporting units exceeded the carrying value, such that the Company’s goodwill was not considered impaired. In recognition there were no events or circumstances that occurred since the third quarter of 2014 that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value, the Company did not perform interim testing at June 30, 2015 . 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. For additional information on goodwill related to acquisitions, see Note 12.

Variable Interest Entities

Variable Interest Entities	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities A VIE is a partnership, limited liability company, trust or other legal entity that meets either one of the following criteria; 1) the entity’s total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties, or 2) the entity has equity investors that cannot make significant decisions about the entity’s operations or that do not absorb their proportionate share of the expected losses or receive the expected returns of the entity. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary of the VIE, which is the party involved with the VIE that has the power to direct the VIE’s significant activities and will absorb a majority of the expected losses, receive a majority of the expected residual returns, or both. 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. 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 Company also has equity investments in Low-Income Housing Tax Credit (“LIHTC”) partnerships. The CDEs and the LIHTC partnerships are VIEs. The underlying activities of the VIEs are community development projects designed primarily to promote community welfare, such as economic rehabilitation and development of low-income areas by providing housing, services, or jobs for residents. 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 primary activities of the VIEs are recognized in commercial loans interest income, other non-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 Company has evaluated the variable interests held by the Company in each CDE (NMTC) and LIHTC partnership investment and determined that the Company continues to be the primary beneficiary of such VIEs. As the primary beneficiary, the VIEs’ assets, liabilities, and results of operations are included in the Company’s consolidated financial statements. 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. June 30, 2015 December 31, 2014 (Dollars in thousands) CDE (NMTC) LIHTC CDE (NMTC) LIHTC Assets Loans receivable $ 36,114 — 36,077 — Premises and equipment, net — 12,893 — 13,106 Accrued interest receivable 113 — 116 — Other assets 478 346 616 258 Total assets $ 36,705 13,239 36,809 13,364 Liabilities Other borrowed funds $ 4,555 1,663 4,555 1,690 Accrued interest payable 4 5 4 5 Other liabilities 67 — 185 — Total liabilities $ 4,626 1,668 4,744 1,695 The following table summarizes the net investment loss of the consolidated VIEs and the associated tax credits included in the Company’s statements of operations during the three and six months ended June 30, 2015 and 2014 . Three Months ended Six Months ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 (Dollars in thousands) CDE (NMTC) LIHTC CDE (NMTC) LIHTC CDE (NMTC) LIHTC CDE (NMTC) LIHTC VIE loss $ (899 ) (251 ) (896 ) (271 ) (690 ) (503 ) (687 ) (541 ) Federal income tax credits 1,165 293 1,164 317 1,165 587 1,164 635 Unconsolidated Variable Interest Entities The Company 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	6 Months Ended
	Jun. 30, 2015
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”) amounted to $408,935,000 and $397,107,000 at June 30, 2015 and December 31, 2014 , respectively, are almost entirely overnight in nature, and are secured by residential mortgage-backed securities with carrying values of $444,695,000 and $479,345,000 , 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.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities As of June 30, 2015 , 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 2 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. 2 N o cash will be exchanged prior to the beginning of the payment term. 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. In October 2014, the interest rate swap with the $160,000,000 notional amount began its payment term. The Company designated wholesale deposits as the cash flow hedge and these deposits were determined to be fully effective during the current period. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the six months ended June 30, 2015 . Therefore, the aggregate fair value of the interest rate swap was recorded in other liabilities with changes recorded in other comprehensive income. The Company expects the hedge to remain highly effective during the remaining term of the interest rate swap. Interest expense recorded on this interest rate swap totaled $2,717,000 during 2015 and is reported as a component of interest expense on deposits. Unless the interest rate swap is terminated during the next year, the Company expects $5,480,000 of the unrealized loss reported in other comprehensive income at June 30, 2015 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 Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Interest rate swaps Amount of gain (loss) recognized in OCI (effective portion) $ 3,896 (6,190 ) (2,097 ) (11,669 ) Amount of loss reclassified from OCI to interest expense (1,257 ) — (2,508 ) — 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. June 30, 2015 December 31, 2014 (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 $ 16,256 — 16,256 16,668 — 16,668 Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of investment securities totaling $23,821,000 at June 30, 2015 . There was $0 collateral pledged from the counterparty to the Company as of June 30, 2015 . 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	6 Months Ended
	Jun. 30, 2015
Other Expenses [Abstract]
Other Expenses	Other Expenses Other expenses consists of the following: Three Months ended Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Consulting and outside services $ 1,804 764 3,275 1,390 Debit card expenses 1,533 1,501 2,885 3,002 VIE write-downs, losses and other expenses 1,694 1,732 2,301 2,352 Postage 927 795 1,841 1,644 Employee expenses 991 858 1,795 1,579 Loan expenses 1,182 607 1,791 1,143 Printing and supplies 906 855 1,696 1,669 Telephone 828 720 1,637 1,540 Checking and operating expenses 742 862 1,447 1,554 Accounting and audit fees 409 385 859 853 ATM expenses 303 305 569 568 Legal fees 183 419 448 638 Other 933 882 1,812 1,702 Total other expenses $ 12,435 10,685 22,356 19,634

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2015
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 Gains (Losses) on Derivatives Used for Cash Flow Hedges Total Balance at December 31, 2013 $ 8,485 1,160 9,645 Other comprehensive income (loss) before reclassification 21,628 (7,141 ) 14,487 Amounts reclassified from accumulated other comprehensive income 74 — 74 Net current period other comprehensive income (loss) 21,702 (7,141 ) 14,561 Balance at June 30, 2014 $ 30,187 (5,981 ) 24,206 Balance at December 31, 2014 $ 27,945 (10,201 ) 17,744 Other comprehensive (loss) income before reclassification (12,574 ) (1,294 ) (13,868 ) Amounts reclassified from accumulated other comprehensive income 28 1,536 1,564 Net current period other comprehensive (loss) income (12,546 ) 242 (12,304 ) Balance at June 30, 2015 $ 15,399 (9,959 ) 5,440

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2015
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 Six Months ended (Dollars in thousands, except per share data) June 30, June 30, June 30, June 30, Net income available to common stockholders, basic and diluted $ 29,335 28,677 57,005 55,407 Average outstanding shares - basic 75,530,591 74,467,576 75,369,366 74,452,568 Add: dilutive stock options and awards 35,064 32,084 38,255 38,891 Average outstanding shares - diluted 75,565,655 74,499,660 75,407,621 74,491,459 Basic earnings per share $ 0.39 0.38 0.76 0.74 Diluted earnings per share $ 0.39 0.38 0.76 0.74 There were no stock options or restricted stock awards excluded from the diluted average outstanding share calculation for the six months ended June 30, 2015 and 2014 , 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	6 Months Ended
	Jun. 30, 2015
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 six month periods ended June 30, 2015 and 2014 . 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 June 30, 2015 . 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, prepayments, defaults, 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 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 schedules 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 June 30, 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 $ 51,497 — 51,497 — U.S. government sponsored enterprises 80,761 — 80,761 — State and local governments 958,052 — 958,052 — Corporate bonds 355,849 — 355,849 — Residential mortgage-backed securities 915,671 — 915,671 — Total assets measured at fair value on a recurring basis $ 2,361,830 — 2,361,830 — Interest rate swaps $ 16,256 — 16,256 — Total liabilities measured at fair value on a recurring basis $ 16,256 — 16,256 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2014 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 $ 44 — 44 — U.S. government sponsored enterprises 21,945 — 21,945 — State and local governments 997,969 — 997,969 — Corporate bonds 314,854 — 314,854 — Residential mortgage-backed securities 1,052,616 — 1,052,616 — Total assets measured at fair value on a recurring basis $ 2,387,428 — 2,387,428 — Interest rate swaps $ 16,668 — 16,668 — Total liabilities measured at fair value on a recurring basis $ 16,668 — 16,668 — 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 June 30, 2015 . 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 schedules 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 June 30, 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 $ 5,021 — — 5,021 Collateral-dependent impaired loans, net of ALLL 12,192 — — 12,192 Total assets measured at fair value on a non-recurring basis $ 17,213 — — 17,213 Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2014 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 $ 3,000 — — 3,000 Collateral-dependent impaired loans, net of ALLL 15,480 — — 15,480 Total assets measured at fair value on a non-recurring basis $ 18,480 — — 18,480 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 June 30, 2015 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 1,479 Sales comparison approach Selling costs 7.0% - 10.0% (7.4%) 3,542 Combined approach Selling costs 8.0% - 8.0% (8.0%) $ 5,021 Collateral-dependent impaired loans, net of ALLL $ 253 Cost approach Selling costs 0.0% - 10.0% (5.6%) 6,179 Sales comparison approach Selling costs 0.0% - 10.0% (8.8%) Adjustment to comparables 0.0% - 5.0% (0.0%) 5,760 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 12,192 Fair Value December 31, 2014 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 2,393 Sales comparison approach Selling costs 0.0% - 10.0% (5.8%) Adjustment to comparables 0.0% - 7.0% (0.5%) 607 Combined approach Selling costs 10.0% - 10.0% (10.0%) Discount rate 10.0% - 10.0% (10.0%) $ 3,000 Collateral-dependent impaired loans, net of ALLL $ 6 Cost approach Selling costs 7.0% - 7.0% (7.0%) 5,335 Income approach Selling costs 8.0% - 10.0% (8.5%) Discount rate 8.3% - 12.0% (9.1%) 6,330 Sales comparison approach Selling costs 0.0% - 10.0% (8.3%) Adjustment to comparables 0.0% - 30.0% (3.5%) 3,809 Combined approach Selling costs 8.0% - 10.0% (9.2%) Adjustment to comparables 10.0% - 20.0% (16.2%) $ 15,480 __________ 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, including discussions with FHLB. 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 schedules 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 June 30, 2015 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 $ 355,719 355,719 — — Investment securities, available-for-sale 2,361,830 — 2,361,830 — Investment securities, held-to-maturity 593,314 — 608,781 — Loans held for sale 53,201 53,201 — — Loans receivable, net of ALLL 4,676,912 — 4,608,899 144,478 Accrued interest receivable 44,563 44,563 — — Non-marketable equity securities 24,914 — 24,914 — Total financial assets $ 8,110,453 453,483 7,604,424 144,478 Financial liabilities Deposits $ 6,558,657 5,215,156 1,347,635 — FHLB advances 329,470 — 339,179 — Repurchase agreements and other borrowed funds 415,600 — 415,600 — Subordinated debentures 125,776 — 78,442 — Accrued interest payable 3,790 3,790 — — Interest rate swaps 16,256 — 16,256 — Total financial liabilities $ 7,449,549 5,218,946 2,197,112 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount December 31, 2014 Quoted Prices Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and cash equivalents $ 442,409 442,409 — — Investment securities, available-for-sale 2,387,428 — 2,387,428 — Investment securities, held-to-maturity 520,997 — 550,946 — Loans held for sale 46,726 46,726 — — Loans receivable, net of ALLL 4,358,342 — 4,288,417 149,769 Accrued interest receivable 40,587 40,587 — — Non-marketable equity securities 52,868 — 52,868 — Total financial assets $ 7,849,357 529,722 7,279,659 149,769 Financial liabilities Deposits $ 6,345,212 4,928,771 1,421,234 — FHLB advances 296,944 — 312,363 — Repurchase agreements and other borrowed funds 404,418 — 404,418 — Subordinated debentures 125,705 — 76,711 — Accrued interest payable 4,155 4,155 — — Interest rate swaps 16,668 — 16,668 — Total financial liabilities $ 7,193,102 4,932,926 2,231,394 —

Mergers and Acquisitions

Mergers and Acquisitions	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Mergers and Acquisitions	Mergers and Acquisitions On February 28, 2015, the Company acquired 100 percent of the outstanding common stock of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana. CB provides banking services to individuals and businesses in western Montana, with banking offices located in Missoula, Polson, Ronan and Pablo, Montana. The acquisition allowed the Company to add new markets in western Montana and complimented the Company’s presence in Missoula and Polson, Montana. The branches of CB have become a part of the Glacier Bank and First Security Bank of Missoula bank divisions. The CB acquisition was valued at $22,995,000 and resulted in the Company issuing 443,644 shares of its common stock and $12,219,000 in cash in exchange for all of CB’s outstanding common stock shares. The fair value of the Company shares issued was determined on the basis of the closing market price of the Company’s common stock on the February 28, 2015 acquisition date. The excess of the fair value of consideration transferred over total identifiable net assets was recorded as goodwill. The goodwill arising from the acquisition consists largely of the synergies and economies of scale expected from combining the operations of the Company and CB. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange. The assets and liabilities of CB were recorded on the Company’s consolidated statements of financial condition at their estimated fair values as of the February 28, 2015 acquisition date and CB’s results of operations have been included in the Company’s consolidated statements of operations since that date. The following table discloses the calculation of the fair value of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill arising from the CB acquisition: (Dollars in thousands) February 28, Fair value of consideration transferred Fair value of Company shares issued, net of equity issuance costs $ 10,776 Cash consideration for outstanding shares 12,219 Contingent consideration — Total fair value of consideration transferred 22,995 Recognized amounts of identifiable assets acquired and liabilities assumed Identifiable assets acquired Cash and cash equivalents 31,931 Investment securities 42,350 Loans receivable 84,689 Core deposit intangible 2,087 Accrued income and other assets 13,580 Total identifiable assets acquired 174,637 Liabilities assumed Deposits 146,820 FHLB advances and repurchase agreements 3,292 Accrued expenses and other liabilities 2,667 Total liabilities assumed 152,779 Total identifiable net assets 21,858 Goodwill recognized $ 1,137 The fair value of the CB assets acquired includes loans with fair values of $84,689,000 and the gross principal and contractual interest due under the CB contracts is $88,817,000 . The Company evaluated the principal and contractual interest due at the acquisition date and determined that an insignificant amount is not expected to be collectible. Core deposit intangible assets related to the CB acquisition totaled $2,087,000 with an estimated life of 10 years. The Company incurred $1,427,000 of third-party acquisition-related costs in connection with the CB acquisition during the six months ended June 30, 2015 . The expenses are included in other expense in the Company's consolidated statements of operations. Total income consisting of net interest income and non-interest income of the acquired operations of CB was approximately $3,028,000 and the net loss was approximately $173,000 from February 28, 2015 to June 30, 2015 . The following unaudited pro forma summary presents consolidated information of the Company as if the CB acquisition had occurred on January 1, 2014: Three Months ended Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Net interest income and non-interest income $ 97,050 91,956 191,004 180,734 Net income 29,335 28,882 57,006 55,798

Subsequent Event

Subsequent Event	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On July 30, 2015 , the Company announced the signing of a definitive agreement to acquire Cañon National Bank, a community bank based in Cañon City, Colorado . Cañon National Bank provides community banking services to individuals and businesses in south central Colorado, with banking offices located in Colorado Springs, Pueblo, Pueblo West, Cañon City, Colorado City and Florence, Colorado. As of June 30, 2015, Cañon National Bank had total assets of $253,000,000 , gross loans of $159,000,000 and total deposits of $225,000,000 . Upon closing of the transaction, which is anticipated to take place in the fourth quarter of 2015, the branches of Cañon National Bank will be merged into the Bank and will become part of the Bank of the San Juans division.

Nature of Operations and Summ22

Nature of Operations and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
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 June 30, 2015 , the results of operations and comprehensive income for the three and six month periods ended June 30, 2015 and 2014 , and changes in stockholders’ equity and cash flows for the six month periods ended June 30, 2015 and 2014 . The condensed consolidated statement of financial condition of the Company as of December 31, 2014 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, 2014 . Operating results for the six months ended June 30, 2015 are not necessarily indicative of the results anticipated for the year ending December 31, 2015 . 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 a majority of the expected losses and/or receive a majority of the expected residual returns. 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. Each of 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 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”). In August 2014, the Company completed its acquisition of FNBR Holding Corporation and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado. 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.
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.
Impact of Recent Authoritative Accounting Guidance	Impact of Recent Authoritative Accounting Guidance The Accounting Standards Codification ™ (“ASC”) is the Financial Accounting Standards Board’s (“FASB”) 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 February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and ends 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 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 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. For public entities, the amendments are effective for annual reporting periods beginning after December 15, 2016, including interim periods within the reporting period. Early application is not permitted. The entity should apply the amendments using one of two retrospective methods described in the amendment. 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 2014, FASB amended FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. The amendments permit entities to make an accounting policy election for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense. The amendments should be applied retrospectively 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, 2014. The adoption of these amendments did not have a material effect on the Company’s financial position or results of operations.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2015
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: June 30, 2015 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 51,889 13 (405 ) 51,497 U.S. government sponsored enterprises 81,085 32 (356 ) 80,761 State and local governments 938,088 29,310 (9,346 ) 958,052 Corporate bonds 355,140 1,482 (773 ) 355,849 Residential mortgage-backed securities 910,491 11,298 (6,118 ) 915,671 Total available-for-sale 2,336,693 42,135 (16,998 ) 2,361,830 Held-to-maturity State and local governments 593,314 23,308 (7,841 ) 608,781 Total held-to-maturity 593,314 23,308 (7,841 ) 608,781 Total investment securities $ 2,930,007 65,443 (24,839 ) 2,970,611 December 31, 2014 Amortized Cost Gross Unrealized Fair Value (Dollars in thousands) Gains Losses Available-for-sale U.S. government and federal agency $ 44 — — 44 U.S. government sponsored enterprises 21,916 31 (2 ) 21,945 State and local governments 962,365 40,173 (4,569 ) 997,969 Corporate bonds 313,545 2,059 (750 ) 314,854 Residential mortgage-backed securities 1,043,897 11,205 (2,486 ) 1,052,616 Total available-for-sale 2,341,767 53,468 (7,807 ) 2,387,428 Held-to-maturity State and local governments 520,997 32,925 (2,976 ) 550,946 Total held-to-maturity 520,997 32,925 (2,976 ) 550,946 Total investment securities $ 2,862,764 86,393 (10,783 ) 2,938,374
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 June 30, 2015 . Actual maturities may differ from expected or contractual maturities since borrowers have the right to prepay obligations with or without prepayment penalties. June 30, 2015 Available-for-Sale Held-to-Maturity (Dollars in thousands) Amortized Cost Fair Value Amortized Cost Fair Value Due within one year $ 130,166 130,744 — — Due after one year through five years 449,624 451,570 — — Due after five years through ten years 137,566 139,651 5,462 5,384 Due after ten years 708,846 724,194 587,852 603,397 1,426,202 1,446,159 593,314 608,781 Residential mortgage-backed securities 1 910,491 915,671 — — Total $ 2,336,693 2,361,830 593,314 608,781 __________ 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 Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Available-for-sale Proceeds from sales and calls of investment securities $ 11,918 21,773 74,621 33,700 Gross realized gains 1 43 160 82 181 Gross realized losses 1 (92 ) (208 ) (127 ) (302 ) Held-to-maturity Proceeds from calls of investment securities 9,605 — 10,065 3,930 Gross realized gains 1 14 — 15 22 Gross realized losses 1 (63 ) — (63 ) — __________ 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: June 30, 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 $ 48,276 (405 ) 3 — 48,279 (405 ) U.S. government sponsored enterprises 64,511 (356 ) — — 64,511 (356 ) State and local governments 228,286 (5,018 ) 106,178 (4,328 ) 334,464 (9,346 ) Corporate bonds 128,016 (736 ) 3,635 (37 ) 131,651 (773 ) Residential mortgage-backed securities 271,261 (4,307 ) 48,782 (1,811 ) 320,043 (6,118 ) Total available-for-sale $ 740,350 (10,822 ) 158,598 (6,176 ) 898,948 (16,998 ) Held-to-maturity State and local governments $ 126,065 (4,113 ) 65,860 (3,728 ) 191,925 (7,841 ) Total held-to-maturity $ 126,065 (4,113 ) 65,860 (3,728 ) 191,925 (7,841 ) December 31, 2014 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 $ — — 3 — 3 — U.S. government sponsored enterprises 13,793 (2 ) — — 13,793 (2 ) State and local governments 91,082 (1,273 ) 115,927 (3,296 ) 207,009 (4,569 ) Corporate bonds 60,289 (545 ) 7,874 (205 ) 68,163 (750 ) Residential mortgage-backed securities 192,962 (926 ) 78,223 (1,560 ) 271,185 (2,486 ) Total available-for-sale $ 358,126 (2,746 ) 202,027 (5,061 ) 560,153 (7,807 ) Held-to-maturity State and local governments $ 18,643 (624 ) 76,761 (2,352 ) 95,404 (2,976 ) Total held-to-maturity $ 18,643 (624 ) 76,761 (2,352 ) 95,404 (2,976 )

Loans Receivable, Net (Tables)

Loans Receivable, Net (Tables)	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
Summary of loans receivable	The following table presents loans receivable for each portfolio class of loans: (Dollars in thousands) June 30, December 31, Residential real estate loans $ 635,674 611,463 Commercial loans Real estate 2,454,369 2,337,548 Other commercial 1,074,905 925,900 Total 3,529,274 3,263,448 Consumer and other loans Home equity 410,708 394,670 Other consumer 231,775 218,514 Total 642,483 613,184 Loans receivable 1 4,807,431 4,488,095 Allowance for loan and lease losses (130,519 ) (129,753 ) Loans receivable, net $ 4,676,912 4,358,342 __________ 1 Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014 , respectively.
Summary of the activity in the ALLL	The following tables summarize the activity in the ALLL by portfolio segment: Three Months ended June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 129,856 15,131 67,327 31,515 9,519 6,364 Provision for loan losses 282 (258 ) 491 532 (559 ) 76 Charge-offs (1,301 ) (44 ) (303 ) (675 ) (122 ) (157 ) Recoveries 1,682 21 1,182 111 108 260 Balance at end of period $ 130,519 14,850 68,697 31,483 8,946 6,543 Three Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 130,729 14,066 70,571 28,484 9,426 8,182 Provision for loan losses 239 915 (2,229 ) 1,334 308 (89 ) Charge-offs (1,738 ) (377 ) (83 ) (586 ) (186 ) (506 ) Recoveries 1,406 20 670 357 177 182 Balance at end of period $ 130,636 14,624 68,929 29,589 9,725 7,769 Six Months ended June 30, 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 1,047 182 205 1,644 (1,018 ) 34 Charge-offs (2,598 ) (58 ) (748 ) (1,369 ) (153 ) (270 ) Recoveries 2,317 46 1,441 317 154 359 Balance at end of period $ 130,519 14,850 68,697 31,483 8,946 6,543 Six Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Balance at beginning of period $ 130,351 14,067 70,332 28,630 9,299 8,023 Provision for loan losses 1,361 737 (2,189 ) 2,267 511 35 Charge-offs (3,324 ) (413 ) (264 ) (1,749 ) (299 ) (599 ) Recoveries 2,248 233 1,050 441 214 310 Balance at end of period $ 130,636 14,624 68,929 29,589 9,725 7,769
Summary of ALLL and loans receivable	The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment: June 30, 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 $ 7,254 793 2,546 3,306 111 498 Collectively evaluated for impairment 123,265 14,057 66,151 28,177 8,835 6,045 Total allowance for loan and lease losses $ 130,519 14,850 68,697 31,483 8,946 6,543 Loans receivable Individually evaluated for impairment $ 151,732 18,199 94,860 28,061 6,580 4,032 Collectively evaluated for impairment 4,655,699 617,475 2,359,509 1,046,844 404,128 227,743 Total loans receivable $ 4,807,431 635,674 2,454,369 1,074,905 410,708 231,775 December 31, 2014 (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 $ 11,597 853 2,967 6,836 447 494 Collectively evaluated for impairment 118,156 13,827 64,832 24,055 9,516 5,926 Total allowance for loan and lease losses $ 129,753 14,680 67,799 30,891 9,963 6,420 Loans receivable Individually evaluated for impairment $ 161,366 19,576 105,264 25,321 6,901 4,304 Collectively evaluated for impairment 4,326,729 591,887 2,232,284 900,579 387,769 214,210 Total loans receivable $ 4,488,095 611,463 2,337,548 925,900 394,670 218,514
Summary of impaired loans	The following tables disclose information related to impaired loans by portfolio segment: At or for the Three or Six Months ended June 30, 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 $ 34,014 5,055 15,111 11,862 234 1,752 Unpaid principal balance 35,374 5,186 15,505 12,184 253 2,246 Specific valuation allowance 7,254 793 2,546 3,306 111 498 Average balance - three months 34,166 5,081 14,034 13,003 319 1,729 Average balance - six months 38,006 4,757 18,408 12,461 617 1,763 Loans without a specific valuation allowance Recorded balance $ 117,718 13,144 79,749 16,199 6,346 2,280 Unpaid principal balance 146,826 14,440 101,325 21,622 7,100 2,339 Average balance - three months 122,973 13,525 82,629 18,345 6,220 2,254 Average balance - six months 120,541 14,172 81,122 16,878 6,042 2,327 Total Recorded balance $ 151,732 18,199 94,860 28,061 6,580 4,032 Unpaid principal balance 182,200 19,626 116,830 33,806 7,353 4,585 Specific valuation allowance 7,254 793 2,546 3,306 111 498 Average balance - three months 157,139 18,606 96,663 31,348 6,539 3,983 Average balance - six months 158,547 18,929 99,530 29,339 6,659 4,090 At or for the Year ended December 31, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Loans with a specific valuation allowance Recorded balance $ 45,688 4,110 27,155 11,377 1,214 1,832 Unpaid principal balance 48,477 4,276 28,048 12,461 1,336 2,356 Specific valuation allowance 11,597 853 2,967 6,836 447 494 Average balance 53,339 5,480 24,519 19,874 1,039 2,427 Loans without a specific valuation allowance Recorded balance $ 115,678 15,466 78,109 13,944 5,687 2,472 Unpaid principal balance 145,038 16,683 100,266 19,117 6,403 2,569 Average balance 128,645 15,580 89,015 14,024 7,163 2,863 Total Recorded balance $ 161,366 19,576 105,264 25,321 6,901 4,304 Unpaid principal balance 193,515 20,959 128,314 31,578 7,739 4,925 Specific valuation allowance 11,597 853 2,967 6,836 447 494 Average balance 181,984 21,060 113,534 33,898 8,202 5,290
Loan portfolio aging analysis	The following tables present an aging analysis of the recorded investment in loans by portfolio segment: June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 19,801 473 10,057 6,484 1,943 844 Accruing loans 60-89 days past due 8,673 858 5,616 765 1,169 265 Accruing loans 90 days or more past due 618 — 396 33 — 189 Non-accrual loans 56,918 7,038 33,671 9,610 5,902 697 Total past due and non-accrual loans 86,010 8,369 49,740 16,892 9,014 1,995 Current loans receivable 4,721,421 627,305 2,404,629 1,058,013 401,694 229,780 Total loans receivable $ 4,807,431 635,674 2,454,369 1,074,905 410,708 231,775 December 31, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Accruing loans 30-59 days past due $ 19,139 3,506 7,925 5,310 1,374 1,024 Accruing loans 60-89 days past due 6,765 1,686 3,592 609 679 199 Accruing loans 90 days or more past due 214 35 31 74 17 57 Non-accrual loans 61,882 6,798 39,717 8,421 5,969 977 Total past due and non-accrual loans 88,000 12,025 51,265 14,414 8,039 2,257 Current loans receivable 4,400,095 599,438 2,286,283 911,486 386,631 216,257 Total loans receivable $ 4,488,095 611,463 2,337,548 925,900 394,670 218,514
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 June 30, 2015 (Dollars in thousands) Total Residential Commercial Other Home Other Troubled debt restructurings Number of loans 15 — 7 5 — 3 Pre-modification recorded balance $ 4,038 — 2,828 1,006 — 204 Post-modification recorded balance $ 3,744 — 2,748 792 — 204 Troubled debt restructurings that subsequently defaulted Number of loans 2 — — 1 — 1 Recorded balance $ 101 — — 99 — 2 Three Months ended June 30, 2014 (Dollars in thousands) Total Residential Commercial Other Home Other Troubled debt restructurings Number of loans 13 — 3 8 1 1 Pre-modification recorded balance $ 19,166 — 1,957 17,160 46 3 Post-modification recorded balance $ 19,158 — 2,000 17,109 46 3 Troubled debt restructurings that subsequently defaulted Number of loans 1 — — 1 — — Recorded balance $ 10 — — 10 — — Six Months ended June 30, 2015 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Troubled debt restructurings Number of loans 20 — 9 8 — 3 Pre-modification recorded balance $ 7,123 — 5,010 1,909 — 204 Post-modification recorded balance $ 6,829 — 4,930 1,695 — 204 Troubled debt restructurings that subsequently defaulted Number of loans 4 — — 1 2 1 Recorded balance $ 217 — — 99 116 2 Six Months ended June 30, 2014 (Dollars in thousands) Total Residential Real Estate Commercial Real Estate Other Commercial Home Equity Other Consumer Troubled debt restructurings Number of loans 26 — 8 15 2 1 Pre-modification recorded balance $ 24,276 — 4,432 19,599 242 3 Post-modification recorded balance $ 23,639 — 4,475 18,919 242 3 Troubled debt restructurings that subsequently defaulted Number of loans 2 — — 2 — — Recorded balance $ 27 — — 27 — —

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2015
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 Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Net carrying value at beginning of period $ 130,843 129,706 129,706 129,706 Acquisitions — — 1,137 — Net carrying value at end of period $ 130,843 129,706 130,843 129,706
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) June 30, December 31, Gross carrying value $ 171,002 169,865 Accumulated impairment charge (40,159 ) (40,159 ) Net carrying value $ 130,843 129,706

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Carrying amounts of 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. June 30, 2015 December 31, 2014 (Dollars in thousands) CDE (NMTC) LIHTC CDE (NMTC) LIHTC Assets Loans receivable $ 36,114 — 36,077 — Premises and equipment, net — 12,893 — 13,106 Accrued interest receivable 113 — 116 — Other assets 478 346 616 258 Total assets $ 36,705 13,239 36,809 13,364 Liabilities Other borrowed funds $ 4,555 1,663 4,555 1,690 Accrued interest payable 4 5 4 5 Other liabilities 67 — 185 — Total liabilities $ 4,626 1,668 4,744 1,695
VIE Net Income or Loss and Associated Tax Credits	The following table summarizes the net investment loss of the consolidated VIEs and the associated tax credits included in the Company’s statements of operations during the three and six months ended June 30, 2015 and 2014 . Three Months ended Six Months ended June 30, 2015 June 30, 2014 June 30, 2015 June 30, 2014 (Dollars in thousands) CDE (NMTC) LIHTC CDE (NMTC) LIHTC CDE (NMTC) LIHTC CDE (NMTC) LIHTC VIE loss $ (899 ) (251 ) (896 ) (271 ) (690 ) (503 ) (687 ) (541 ) Federal income tax credits 1,165 293 1,164 317 1,165 587 1,164 635

Derivatives and Hedging Activ27

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of interest rate swap derivative financial instruments	As of June 30, 2015 , 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 2 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. 2 N o cash will be exchanged prior to the beginning of the payment term.
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 Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Interest rate swaps Amount of gain (loss) recognized in OCI (effective portion) $ 3,896 (6,190 ) (2,097 ) (11,669 ) Amount of loss reclassified from OCI to interest expense (1,257 ) — (2,508 ) — 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. June 30, 2015 December 31, 2014 (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 $ 16,256 — 16,256 16,668 — 16,668

Other Expenses (Tables)

Other Expenses (Tables)	6 Months Ended
	Jun. 30, 2015
Other Expenses [Abstract]
Schedule of Other Expenses	Other expenses consists of the following: Three Months ended Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Consulting and outside services $ 1,804 764 3,275 1,390 Debit card expenses 1,533 1,501 2,885 3,002 VIE write-downs, losses and other expenses 1,694 1,732 2,301 2,352 Postage 927 795 1,841 1,644 Employee expenses 991 858 1,795 1,579 Loan expenses 1,182 607 1,791 1,143 Printing and supplies 906 855 1,696 1,669 Telephone 828 720 1,637 1,540 Checking and operating expenses 742 862 1,447 1,554 Accounting and audit fees 409 385 859 853 ATM expenses 303 305 569 568 Legal fees 183 419 448 638 Other 933 882 1,812 1,702 Total other expenses $ 12,435 10,685 22,356 19,634

Accumulated Other Comprehensi29

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2015
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 Gains (Losses) on Derivatives Used for Cash Flow Hedges Total Balance at December 31, 2013 $ 8,485 1,160 9,645 Other comprehensive income (loss) before reclassification 21,628 (7,141 ) 14,487 Amounts reclassified from accumulated other comprehensive income 74 — 74 Net current period other comprehensive income (loss) 21,702 (7,141 ) 14,561 Balance at June 30, 2014 $ 30,187 (5,981 ) 24,206 Balance at December 31, 2014 $ 27,945 (10,201 ) 17,744 Other comprehensive (loss) income before reclassification (12,574 ) (1,294 ) (13,868 ) Amounts reclassified from accumulated other comprehensive income 28 1,536 1,564 Net current period other comprehensive (loss) income (12,546 ) 242 (12,304 ) Balance at June 30, 2015 $ 15,399 (9,959 ) 5,440

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2015
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 Six Months ended (Dollars in thousands, except per share data) June 30, June 30, June 30, June 30, Net income available to common stockholders, basic and diluted $ 29,335 28,677 57,005 55,407 Average outstanding shares - basic 75,530,591 74,467,576 75,369,366 74,452,568 Add: dilutive stock options and awards 35,064 32,084 38,255 38,891 Average outstanding shares - diluted 75,565,655 74,499,660 75,407,621 74,491,459 Basic earnings per share $ 0.39 0.38 0.76 0.74 Diluted earnings per share $ 0.39 0.38 0.76 0.74

Fair Value of Assets and Liab31

Fair Value of Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair value measurement of assets and liabilities measured at fair value on a recurring basis	The following schedules 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 June 30, 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 $ 51,497 — 51,497 — U.S. government sponsored enterprises 80,761 — 80,761 — State and local governments 958,052 — 958,052 — Corporate bonds 355,849 — 355,849 — Residential mortgage-backed securities 915,671 — 915,671 — Total assets measured at fair value on a recurring basis $ 2,361,830 — 2,361,830 — Interest rate swaps $ 16,256 — 16,256 — Total liabilities measured at fair value on a recurring basis $ 16,256 — 16,256 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2014 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 $ 44 — 44 — U.S. government sponsored enterprises 21,945 — 21,945 — State and local governments 997,969 — 997,969 — Corporate bonds 314,854 — 314,854 — Residential mortgage-backed securities 1,052,616 — 1,052,616 — Total assets measured at fair value on a recurring basis $ 2,387,428 — 2,387,428 — Interest rate swaps $ 16,668 — 16,668 — Total liabilities measured at fair value on a recurring basis $ 16,668 — 16,668 —
Fair value measurement of assets measured at fair value on a non-recurring basis	The following schedules 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 June 30, 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 $ 5,021 — — 5,021 Collateral-dependent impaired loans, net of ALLL 12,192 — — 12,192 Total assets measured at fair value on a non-recurring basis $ 17,213 — — 17,213 Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Fair Value December 31, 2014 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 $ 3,000 — — 3,000 Collateral-dependent impaired loans, net of ALLL 15,480 — — 15,480 Total assets measured at fair value on a non-recurring basis $ 18,480 — — 18,480
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 June 30, 2015 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 1,479 Sales comparison approach Selling costs 7.0% - 10.0% (7.4%) 3,542 Combined approach Selling costs 8.0% - 8.0% (8.0%) $ 5,021 Collateral-dependent impaired loans, net of ALLL $ 253 Cost approach Selling costs 0.0% - 10.0% (5.6%) 6,179 Sales comparison approach Selling costs 0.0% - 10.0% (8.8%) Adjustment to comparables 0.0% - 5.0% (0.0%) 5,760 Combined approach Selling costs 10.0% - 10.0% (10.0%) Adjustment to comparables 20.0% - 20.0% (20.0%) $ 12,192 Fair Value December 31, 2014 Quantitative Information about Level 3 Fair Value Measurements (Dollars in thousands) Valuation Technique Unobservable Input Range (Weighted-Average) 1 Other real estate owned $ 2,393 Sales comparison approach Selling costs 0.0% - 10.0% (5.8%) Adjustment to comparables 0.0% - 7.0% (0.5%) 607 Combined approach Selling costs 10.0% - 10.0% (10.0%) Discount rate 10.0% - 10.0% (10.0%) $ 3,000 Collateral-dependent impaired loans, net of ALLL $ 6 Cost approach Selling costs 7.0% - 7.0% (7.0%) 5,335 Income approach Selling costs 8.0% - 10.0% (8.5%) Discount rate 8.3% - 12.0% (9.1%) 6,330 Sales comparison approach Selling costs 0.0% - 10.0% (8.3%) Adjustment to comparables 0.0% - 30.0% (3.5%) 3,809 Combined approach Selling costs 8.0% - 10.0% (9.2%) Adjustment to comparables 10.0% - 20.0% (16.2%) $ 15,480 __________ 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 schedules 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 June 30, 2015 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 $ 355,719 355,719 — — Investment securities, available-for-sale 2,361,830 — 2,361,830 — Investment securities, held-to-maturity 593,314 — 608,781 — Loans held for sale 53,201 53,201 — — Loans receivable, net of ALLL 4,676,912 — 4,608,899 144,478 Accrued interest receivable 44,563 44,563 — — Non-marketable equity securities 24,914 — 24,914 — Total financial assets $ 8,110,453 453,483 7,604,424 144,478 Financial liabilities Deposits $ 6,558,657 5,215,156 1,347,635 — FHLB advances 329,470 — 339,179 — Repurchase agreements and other borrowed funds 415,600 — 415,600 — Subordinated debentures 125,776 — 78,442 — Accrued interest payable 3,790 3,790 — — Interest rate swaps 16,256 — 16,256 — Total financial liabilities $ 7,449,549 5,218,946 2,197,112 — Fair Value Measurements At the End of the Reporting Period Using (Dollars in thousands) Carrying Amount December 31, 2014 Quoted Prices Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets Cash and cash equivalents $ 442,409 442,409 — — Investment securities, available-for-sale 2,387,428 — 2,387,428 — Investment securities, held-to-maturity 520,997 — 550,946 — Loans held for sale 46,726 46,726 — — Loans receivable, net of ALLL 4,358,342 — 4,288,417 149,769 Accrued interest receivable 40,587 40,587 — — Non-marketable equity securities 52,868 — 52,868 — Total financial assets $ 7,849,357 529,722 7,279,659 149,769 Financial liabilities Deposits $ 6,345,212 4,928,771 1,421,234 — FHLB advances 296,944 — 312,363 — Repurchase agreements and other borrowed funds 404,418 — 404,418 — Subordinated debentures 125,705 — 76,711 — Accrued interest payable 4,155 4,155 — — Interest rate swaps 16,668 — 16,668 — Total financial liabilities $ 7,193,102 4,932,926 2,231,394 —

Mergers and Acquisitions (Table

Mergers and Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Consideration transferred, identifiable net assets acquired and resulting goodwill	The following table discloses the calculation of the fair value of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill arising from the CB acquisition: (Dollars in thousands) February 28, Fair value of consideration transferred Fair value of Company shares issued, net of equity issuance costs $ 10,776 Cash consideration for outstanding shares 12,219 Contingent consideration — Total fair value of consideration transferred 22,995 Recognized amounts of identifiable assets acquired and liabilities assumed Identifiable assets acquired Cash and cash equivalents 31,931 Investment securities 42,350 Loans receivable 84,689 Core deposit intangible 2,087 Accrued income and other assets 13,580 Total identifiable assets acquired 174,637 Liabilities assumed Deposits 146,820 FHLB advances and repurchase agreements 3,292 Accrued expenses and other liabilities 2,667 Total liabilities assumed 152,779 Total identifiable net assets 21,858 Goodwill recognized $ 1,137
Unaudited Pro Forma Summary of the Company as if the Acquisitions had Occurred at the Beginning of the Period	The following unaudited pro forma summary presents consolidated information of the Company as if the CB acquisition had occurred on January 1, 2014: Three Months ended Six Months ended (Dollars in thousands) June 30, June 30, June 30, June 30, Net interest income and non-interest income $ 97,050 91,956 191,004 180,734 Net income 29,335 28,882 57,006 55,798

Nature of Operations and Summ33

Nature of Operations and Summary of Significant Accounting Policies (Details Textual) - Jun. 30, 2015	Total
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	Jun. 30, 2015	Dec. 31, 2014
Available-for-sale
Amortized Cost	$ 2,336,693	$ 2,341,767
Gross Unrealized Gains	42,135	53,468
Gross Unrealized Losses	(16,998)	(7,807)
Fair Value	2,361,830	2,387,428
Held-to-maturity
Amortized Cost	593,314	520,997
Gross Unrealized Gains	23,308	32,925
Gross Unrealized Losses	(7,841)	(2,976)
Fair Value	608,781	550,946
Total
Amortized Cost	2,930,007	2,862,764
Gross Unrealized Gains	65,443	86,393
Gross Unrealized Losses	(24,839)	(10,783)
Fair Value	2,970,611	2,938,374
U.S. government and federal agency
Available-for-sale
Amortized Cost	51,889	44
Gross Unrealized Gains	13	0
Gross Unrealized Losses	(405)	0
Fair Value	51,497	44
U.S. government sponsored enterprises
Available-for-sale
Amortized Cost	81,085	21,916
Gross Unrealized Gains	32	31
Gross Unrealized Losses	(356)	(2)
Fair Value	80,761	21,945
State and local governments
Available-for-sale
Amortized Cost	938,088	962,365
Gross Unrealized Gains	29,310	40,173
Gross Unrealized Losses	(9,346)	(4,569)
Fair Value	958,052	997,969
Held-to-maturity
Amortized Cost	593,314	520,997
Gross Unrealized Gains	23,308	32,925
Gross Unrealized Losses	(7,841)	(2,976)
Fair Value	608,781	550,946
Corporate bonds
Available-for-sale
Amortized Cost	355,140	313,545
Gross Unrealized Gains	1,482	2,059
Gross Unrealized Losses	(773)	(750)
Fair Value	355,849	314,854
Residential mortgage-backed securities
Available-for-sale
Amortized Cost	910,491	1,043,897
Gross Unrealized Gains	11,298	11,205
Gross Unrealized Losses	(6,118)	(2,486)
Fair Value	$ 915,671	$ 1,052,616

Investment Securities Maturity

Investment Securities Maturity Schedule (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Available-for-Sale, Amortized Cost
Due within one year		$ 130,166
Due after one year through five years		449,624
Due after five years through ten years		137,566
Due after ten years		708,846
Total before residential mortgage-backed securities		1,426,202
Total		2,336,693	$ 2,341,767
Available-for-Sale, Fair Value
Due within one year		130,744
Due after one year through five years		451,570
Due after five years through ten years		139,651
Due after ten years		724,194
Total before residential mortgage-backed securities		1,446,159
Total		2,361,830	2,387,428
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		5,462
Due after ten years		587,852
Total before residential mortgage-backed securities		593,314
Amortized Cost		593,314	520,997
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		5,384
Due after ten years		603,397
Total before residential mortgage-backed securities		608,781
Total		608,781	550,946
Residential mortgage-backed securities
Available-for-Sale, Amortized Cost
Residential mortgage-backed securities	[1]	910,491
Total		910,491	1,043,897
Available-for-Sale, Fair Value
Residential mortgage-backed securities	[1]	915,671
Total		915,671	$ 1,052,616
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		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Available-for-sale
Proceeds from sales and calls of investment securities		$ 11,918	$ 21,773	$ 74,621	$ 33,700
Gross realized gains	[1]	43	160	82	181
Gross realized losses	[1]	(92)	(208)	(127)	(302)
Held-to-maturity
Proceeds from calls of investment securities		9,605	0	10,065	3,930
Gross realized gains	[1]	14	0	15	22
Gross realized losses	[1]	$ (63)	$ 0	$ (63)	$ 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	Jun. 30, 2015	Dec. 31, 2014
Available-for-sale, Fair Value
Less than 12 Months	$ 740,350	$ 358,126
12 Months or More	158,598	202,027
Total	898,948	560,153
Available-for-sale, Unrealized Loss
Less than 12 Months	(10,822)	(2,746)
12 Months or More	(6,176)	(5,061)
Total	(16,998)	(7,807)
Held-to-maturity, Fair Value
Less than 12 Months	126,065	18,643
12 Months or More	65,860	76,761
Total	191,925	95,404
Held-to-maturity, Unrealized Loss
Less than 12 Months	(4,113)	(624)
12 Months or More	(3,728)	(2,352)
Total	(7,841)	(2,976)
U.S. government and federal agency
Available-for-sale, Fair Value
Less than 12 Months	48,276	0
12 Months or More	3	3
Total	48,279	3
Available-for-sale, Unrealized Loss
Less than 12 Months	(405)	0
12 Months or More	0	0
Total	(405)	0
U.S. government sponsored enterprises
Available-for-sale, Fair Value
Less than 12 Months	64,511	13,793
12 Months or More	0	0
Total	64,511	13,793
Available-for-sale, Unrealized Loss
Less than 12 Months	(356)	(2)
12 Months or More	0	0
Total	(356)	(2)
State and local governments
Available-for-sale, Fair Value
Less than 12 Months	228,286	91,082
12 Months or More	106,178	115,927
Total	334,464	207,009
Available-for-sale, Unrealized Loss
Less than 12 Months	(5,018)	(1,273)
12 Months or More	(4,328)	(3,296)
Total	(9,346)	(4,569)
Held-to-maturity, Fair Value
Less than 12 Months	126,065	18,643
12 Months or More	65,860	76,761
Total	191,925	95,404
Held-to-maturity, Unrealized Loss
Less than 12 Months	(4,113)	(624)
12 Months or More	(3,728)	(2,352)
Total	(7,841)	(2,976)
Corporate bonds
Available-for-sale, Fair Value
Less than 12 Months	128,016	60,289
12 Months or More	3,635	7,874
Total	131,651	68,163
Available-for-sale, Unrealized Loss
Less than 12 Months	(736)	(545)
12 Months or More	(37)	(205)
Total	(773)	(750)
Residential mortgage-backed securities
Available-for-sale, Fair Value
Less than 12 Months	271,261	192,962
12 Months or More	48,782	78,223
Total	320,043	271,185
Available-for-sale, Unrealized Loss
Less than 12 Months	(4,307)	(926)
12 Months or More	(1,811)	(1,560)
Total	$ (6,118)	$ (2,486)

Investment Securities (Details

Investment Securities (Details Textual) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
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 ($)		Jun. 30, 2015	Dec. 31, 2014
Summary of Loans Receivable
Loans receivable	[1]	$ 4,807,431,000	$ 4,488,095,000
Allowance for loan and lease losses		(130,519,000)	(129,753,000)
Loans receivable, net		4,676,912,000	4,358,342,000
Net deferred fees, costs, premiums, and discounts included in loans receivable		13,312,000	13,710,000
Residential Real Estate
Summary of Loans Receivable
Loans receivable		635,674,000	611,463,000
Allowance for loan and lease losses		(14,850,000)	(14,680,000)
Commercial Real Estate
Summary of Loans Receivable
Loans receivable		2,454,369,000	2,337,548,000
Allowance for loan and lease losses		(68,697,000)	(67,799,000)
Other Commercial
Summary of Loans Receivable
Loans receivable		1,074,905,000	925,900,000
Allowance for loan and lease losses		(31,483,000)	(30,891,000)
Total Commercial
Summary of Loans Receivable
Loans receivable		3,529,274,000	3,263,448,000
Home Equity
Summary of Loans Receivable
Loans receivable		410,708,000	394,670,000
Allowance for loan and lease losses		(8,946,000)	(9,963,000)
Other Consumer
Summary of Loans Receivable
Loans receivable		231,775,000	218,514,000
Allowance for loan and lease losses		(6,543,000)	(6,420,000)
Total Consumer and Other
Summary of Loans Receivable
Loans receivable		$ 642,483,000	$ 613,184,000
[1]	Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014, respectively.

ALLL Activity (Details)

ALLL Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Allowance for loan and lease losses
Balance at beginning of period	$ 129,856	$ 130,729	$ 129,753	$ 130,351
Provision for loan losses	282	239	1,047	1,361
Charge-offs	(1,301)	(1,738)	(2,598)	(3,324)
Recoveries	1,682	1,406	2,317	2,248
Balance at end of period	130,519	130,636	130,519	130,636
Residential Real Estate
Allowance for loan and lease losses
Balance at beginning of period	15,131	14,066	14,680	14,067
Provision for loan losses	(258)	915	182	737
Charge-offs	(44)	(377)	(58)	(413)
Recoveries	21	20	46	233
Balance at end of period	14,850	14,624	14,850	14,624
Commercial Real Estate
Allowance for loan and lease losses
Balance at beginning of period	67,327	70,571	67,799	70,332
Provision for loan losses	491	(2,229)	205	(2,189)
Charge-offs	(303)	(83)	(748)	(264)
Recoveries	1,182	670	1,441	1,050
Balance at end of period	68,697	68,929	68,697	68,929
Other Commercial
Allowance for loan and lease losses
Balance at beginning of period	31,515	28,484	30,891	28,630
Provision for loan losses	532	1,334	1,644	2,267
Charge-offs	(675)	(586)	(1,369)	(1,749)
Recoveries	111	357	317	441
Balance at end of period	31,483	29,589	31,483	29,589
Home Equity
Allowance for loan and lease losses
Balance at beginning of period	9,519	9,426	9,963	9,299
Provision for loan losses	(559)	308	(1,018)	511
Charge-offs	(122)	(186)	(153)	(299)
Recoveries	108	177	154	214
Balance at end of period	8,946	9,725	8,946	9,725
Other Consumer
Allowance for loan and lease losses
Balance at beginning of period	6,364	8,182	6,420	8,023
Provision for loan losses	76	(89)	34	35
Charge-offs	(157)	(506)	(270)	(599)
Recoveries	260	182	359	310
Balance at end of period	$ 6,543	$ 7,769	$ 6,543	$ 7,769

ALLL and Loans Receivable Summa

ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		$ 7,254	$ 11,597
Collectively evaluated for impairment		123,265	118,156
Total allowance for loan and lease losses		130,519	129,753
Individually evaluated for impairment		151,732	161,366
Collectively evaluated for impairment		4,655,699	4,326,729
Total loans receivable	[1]	4,807,431	4,488,095
Residential Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		793	853
Collectively evaluated for impairment		14,057	13,827
Total allowance for loan and lease losses		14,850	14,680
Individually evaluated for impairment		18,199	19,576
Collectively evaluated for impairment		617,475	591,887
Total loans receivable		635,674	611,463
Commercial Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		2,546	2,967
Collectively evaluated for impairment		66,151	64,832
Total allowance for loan and lease losses		68,697	67,799
Individually evaluated for impairment		94,860	105,264
Collectively evaluated for impairment		2,359,509	2,232,284
Total loans receivable		2,454,369	2,337,548
Other Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		3,306	6,836
Collectively evaluated for impairment		28,177	24,055
Total allowance for loan and lease losses		31,483	30,891
Individually evaluated for impairment		28,061	25,321
Collectively evaluated for impairment		1,046,844	900,579
Total loans receivable		1,074,905	925,900
Home Equity
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		111	447
Collectively evaluated for impairment		8,835	9,516
Total allowance for loan and lease losses		8,946	9,963
Individually evaluated for impairment		6,580	6,901
Collectively evaluated for impairment		404,128	387,769
Total loans receivable		410,708	394,670
Other Consumer
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		498	494
Collectively evaluated for impairment		6,045	5,926
Total allowance for loan and lease losses		6,543	6,420
Individually evaluated for impairment		4,032	4,304
Collectively evaluated for impairment		227,743	214,210
Total loans receivable		$ 231,775	$ 218,514
[1]	Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014, respectively.

Impaired Loans (Details)

Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	$ 34,014	$ 34,014	$ 45,688
Loans with a specific valuation allowance, Unpaid principal balance	35,374	35,374	48,477
Specific valuation allowance	7,254	7,254	11,597
Loans with a specific valuation allowance, Average balance	34,166	38,006	53,339
Loans without a specific valuation allowance, Recorded balance	117,718	117,718	115,678
Loans without a specific valuation allowance, Unpaid principal balance	146,826	146,826	145,038
Loans without a specific valuation allowance, Average balance	122,973	120,541	128,645
Recorded balance	151,732	151,732	161,366
Unpaid principal balance	182,200	182,200	193,515
Average balance	157,139	158,547	181,984
Residential Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	5,055	5,055	4,110
Loans with a specific valuation allowance, Unpaid principal balance	5,186	5,186	4,276
Specific valuation allowance	793	793	853
Loans with a specific valuation allowance, Average balance	5,081	4,757	5,480
Loans without a specific valuation allowance, Recorded balance	13,144	13,144	15,466
Loans without a specific valuation allowance, Unpaid principal balance	14,440	14,440	16,683
Loans without a specific valuation allowance, Average balance	13,525	14,172	15,580
Recorded balance	18,199	18,199	19,576
Unpaid principal balance	19,626	19,626	20,959
Average balance	18,606	18,929	21,060
Commercial Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	15,111	15,111	27,155
Loans with a specific valuation allowance, Unpaid principal balance	15,505	15,505	28,048
Specific valuation allowance	2,546	2,546	2,967
Loans with a specific valuation allowance, Average balance	14,034	18,408	24,519
Loans without a specific valuation allowance, Recorded balance	79,749	79,749	78,109
Loans without a specific valuation allowance, Unpaid principal balance	101,325	101,325	100,266
Loans without a specific valuation allowance, Average balance	82,629	81,122	89,015
Recorded balance	94,860	94,860	105,264
Unpaid principal balance	116,830	116,830	128,314
Average balance	96,663	99,530	113,534
Other Commercial
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	11,862	11,862	11,377
Loans with a specific valuation allowance, Unpaid principal balance	12,184	12,184	12,461
Specific valuation allowance	3,306	3,306	6,836
Loans with a specific valuation allowance, Average balance	13,003	12,461	19,874
Loans without a specific valuation allowance, Recorded balance	16,199	16,199	13,944
Loans without a specific valuation allowance, Unpaid principal balance	21,622	21,622	19,117
Loans without a specific valuation allowance, Average balance	18,345	16,878	14,024
Recorded balance	28,061	28,061	25,321
Unpaid principal balance	33,806	33,806	31,578
Average balance	31,348	29,339	33,898
Home Equity
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	234	234	1,214
Loans with a specific valuation allowance, Unpaid principal balance	253	253	1,336
Specific valuation allowance	111	111	447
Loans with a specific valuation allowance, Average balance	319	617	1,039
Loans without a specific valuation allowance, Recorded balance	6,346	6,346	5,687
Loans without a specific valuation allowance, Unpaid principal balance	7,100	7,100	6,403
Loans without a specific valuation allowance, Average balance	6,220	6,042	7,163
Recorded balance	6,580	6,580	6,901
Unpaid principal balance	7,353	7,353	7,739
Average balance	6,539	6,659	8,202
Other Consumer
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	1,752	1,752	1,832
Loans with a specific valuation allowance, Unpaid principal balance	2,246	2,246	2,356
Specific valuation allowance	498	498	494
Loans with a specific valuation allowance, Average balance	1,729	1,763	2,427
Loans without a specific valuation allowance, Recorded balance	2,280	2,280	2,472
Loans without a specific valuation allowance, Unpaid principal balance	2,339	2,339	2,569
Loans without a specific valuation allowance, Average balance	2,254	2,327	2,863
Recorded balance	4,032	4,032	4,304
Unpaid principal balance	4,585	4,585	4,925
Average balance	$ 3,983	$ 4,090	$ 5,290

Loans Receivable Aging Analysis

Loans Receivable Aging Analysis (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Loan portfolio aging analysis
Non-accrual loans		$ 56,918	$ 61,882
Total past due and non-accrual loans		86,010	88,000
Current loans receivable		4,721,421	4,400,095
Total loans receivable	[1]	4,807,431	4,488,095
Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		19,801	19,139
Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		8,673	6,765
Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		618	214
Residential Real Estate
Loan portfolio aging analysis
Non-accrual loans		7,038	6,798
Total past due and non-accrual loans		8,369	12,025
Current loans receivable		627,305	599,438
Total loans receivable		635,674	611,463
Residential Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		473	3,506
Residential Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		858	1,686
Residential Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		0	35
Commercial Real Estate
Loan portfolio aging analysis
Non-accrual loans		33,671	39,717
Total past due and non-accrual loans		49,740	51,265
Current loans receivable		2,404,629	2,286,283
Total loans receivable		2,454,369	2,337,548
Commercial Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		10,057	7,925
Commercial Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		5,616	3,592
Commercial Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		396	31
Other Commercial
Loan portfolio aging analysis
Non-accrual loans		9,610	8,421
Total past due and non-accrual loans		16,892	14,414
Current loans receivable		1,058,013	911,486
Total loans receivable		1,074,905	925,900
Other Commercial | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		6,484	5,310
Other Commercial | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		765	609
Other Commercial | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		33	74
Home Equity
Loan portfolio aging analysis
Non-accrual loans		5,902	5,969
Total past due and non-accrual loans		9,014	8,039
Current loans receivable		401,694	386,631
Total loans receivable		410,708	394,670
Home Equity | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		1,943	1,374
Home Equity | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		1,169	679
Home Equity | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		0	17
Other Consumer
Loan portfolio aging analysis
Non-accrual loans		697	977
Total past due and non-accrual loans		1,995	2,257
Current loans receivable		229,780	216,257
Total loans receivable		231,775	218,514
Other Consumer | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		844	1,024
Other Consumer | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		265	199
Other Consumer | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		$ 189	$ 57
[1]	Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014, respectively.

Troubled Debt Restructurings (D

Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)Loan	Jun. 30, 2014USD ($)Loan	Jun. 30, 2015USD ($)Loan	Jun. 30, 2014USD ($)Loan
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	15	13	20	26
Troubled debt restructurings, Pre-modification recorded balance	$ 4,038	$ 19,166	$ 7,123	$ 24,276
Troubled debt restructurings, Post-modification recorded balance	$ 3,744	$ 19,158	$ 6,829	$ 23,639
TDRs that Subsequently Defaulted, Number of Loans | Loan	2	1	4	2
TDRs that Subsequently Defaulted, Recorded Balance	$ 101	$ 10	$ 217	$ 27
Residential Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	0	0	0	0
Troubled debt restructurings, Pre-modification recorded balance	$ 0	$ 0	$ 0	$ 0
Troubled debt restructurings, Post-modification recorded balance	$ 0	$ 0	$ 0	$ 0
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	7	3	9	8
Troubled debt restructurings, Pre-modification recorded balance	$ 2,828	$ 1,957	$ 5,010	$ 4,432
Troubled debt restructurings, Post-modification recorded balance	$ 2,748	$ 2,000	$ 4,930	$ 4,475
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 0
Other Commercial
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	5	8	8	15
Troubled debt restructurings, Pre-modification recorded balance	$ 1,006	$ 17,160	$ 1,909	$ 19,599
Troubled debt restructurings, Post-modification recorded balance	$ 792	$ 17,109	$ 1,695	$ 18,919
TDRs that Subsequently Defaulted, Number of Loans | Loan	1	1	1	2
TDRs that Subsequently Defaulted, Recorded Balance	$ 99	$ 10	$ 99	$ 27
Home Equity
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	0	1	0	2
Troubled debt restructurings, Pre-modification recorded balance	$ 0	$ 46	$ 0	$ 242
Troubled debt restructurings, Post-modification recorded balance	$ 0	$ 46	$ 0	$ 242
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	2	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 116	$ 0
Other Consumer
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans | Loan	3	1	3	1
Troubled debt restructurings, Pre-modification recorded balance	$ 204	$ 3	$ 204	$ 3
Troubled debt restructurings, Post-modification recorded balance	$ 204	$ 3	$ 204	$ 3
TDRs that Subsequently Defaulted, Number of Loans | Loan	1	0	1	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 2	$ 0	$ 2	$ 0

Loans Receivable, Net (Details

Loans Receivable, Net (Details Textual) - USD ($)	Jun. 30, 2015	Jun. 30, 2014
Loans and Leases Receivable Disclosure
TDR With Pre Modification Loan Balance for Which Oreo Was Received	$ 5,494,000	$ 6,604,000
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	1,007,000
OREO Secured by Residential Real Estate	$ 1,626,000

Goodwill Changes in the Carryin

Goodwill Changes in the Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill Roll Forward
Net carrying value at beginning of period	$ 130,843	$ 129,706	$ 129,706	$ 129,706
Acquisitions	0	0	1,137	0
Net carrying value at end of period	$ 130,843	$ 129,706	$ 130,843	$ 129,706

Net Carrying Value of Goodwill

Net Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Gross carrying value of goodwill and the accumulated impairment charge
Gross carrying value	$ 171,002		$ 169,865
Accumulated impairment charge	(40,159)		(40,159)
Net carrying value	$ 130,843	$ 130,843	$ 129,706	$ 129,706	$ 129,706	$ 129,706

Variable Interest Entities VIE

Variable Interest Entities VIE Carrying Amounts Included in Financial Statements (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CDE (NMTC)
Carrying amounts of the VIEs' assets and liabilities
Loans receivable	$ 36,114	$ 36,077
Premises and equipment, net	0	0
Accrued interest receivable	113	116
Other assets	478	616
Total assets	36,705	36,809
Other borrowed funds	4,555	4,555
Accrued interest payable	4	4
Other liabilities	67	185
Total liabilities	4,626	4,744
LIHTC
Carrying amounts of the VIEs' assets and liabilities
Loans receivable	0	0
Premises and equipment, net	12,893	13,106
Accrued interest receivable	0	0
Other assets	346	258
Total assets	13,239	13,364
Other borrowed funds	1,663	1,690
Accrued interest payable	5	5
Other liabilities	0	0
Total liabilities	$ 1,668	$ 1,695

Variable Interest Entities VI49

Variable Interest Entities VIE Net Income or Loss and Tax Credits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CDE (NMTC)
Consolidated VIEs
VIE loss	$ (899)	$ (896)	$ (690)	$ (687)
Federal income tax credits	1,165	1,164	1,165	1,164
LIHTC
Consolidated VIEs
VIE loss	(251)	(271)	(503)	(541)
Federal income tax credits	$ 293	$ 317	$ 587	$ 635

Securities Sold Under Agreeme50

Securities Sold Under Agreements to Repurchase Securities Sold Under Agreements to Repurchase (Details Textual) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Residential mortgage-backed securities
Repurchase Agreements
Securities Pledged for Repurchase Agreements	$ 444,695,000	$ 479,345,000
Maturity Overnight
Repurchase Agreements
Repurchase Agreements	$ 408,935,000	$ 397,107,000

Interest Rate Swap Summary (Det

Interest Rate Swap Summary (Details) - Jun. 30, 2015 - USD ($) $ in Thousands		Total
Interest Rate Swap One
Interest rate swap derivative financial instruments
Forecasted Notional Amount		$ 160,000
Variable Interest Rate	[1]	3 month LIBOR
Fixed Interest Rate	[1]	3.378%
Term, Effective Date	[2]	Oct. 21, 2014
Term, Maturity Date	[2]	Oct. 21, 2021
Interest Rate Swap Two
Interest rate swap derivative financial instruments
Forecasted Notional Amount		$ 100,000
Variable Interest Rate	[1]	3 month LIBOR
Fixed Interest Rate	[1]	2.498%
Term, Effective Date	[2]	Nov. 30, 2015
Term, Maturity Date	[2]	Nov. 30, 2022
[1]	The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.
[2]	No cash will be exchanged prior to the beginning of the payment term.

Derivatives and Hedging Activ52

Derivatives and Hedging Activities Interest Rate Swap Gains or Losses (Details) - Interest Rate Swap - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Expense
Pre-Tax Gains or Losses
Amount of loss reclassified from OCI to interest expense	$ (1,257)	$ 0	$ (2,508)	$ 0
Other Non-Interest Expense
Pre-Tax Gains or Losses
Amount of loss recognized in other non-interest expense (ineffective portion)	0	0	0	0
Other Comprehensive Income
Pre-Tax Gains or Losses
Amount of gain (loss) recognized in OCI (effective portion)	$ 3,896	$ (6,190)	$ (2,097)	$ (11,669)

Derivatives and Hedging Activ53

Derivatives and Hedging Activities Offsetting Assets (Details) - Interest Rate Swap - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
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 Activ54

Derivatives and Hedging Activities Offsetting Liabilities (Details) - Interest Rate Swap - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Offsetting Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 16,256	$ 16,668
Gross Amounts Offset in the Statements of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statements of Financial Position	$ 16,256	$ 16,668

Derivatives and Hedging Activ55

Derivatives and Hedging Activities (Details Textual) - Jun. 30, 2015 - USD ($)	Total
Interest Rate Swap
Interest rate swap derivative financial instruments
Investment securities pledged as collateral	$ 23,821,000
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 expense recorded on interest rate swap	2,717,000
Unrealized loss to be reclassified within twelve months	$ 5,480,000

Other Expenses (Details)

Other Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other Expenses
Consulting and outside services	$ 1,804	$ 764	$ 3,275	$ 1,390
Debit card expenses	1,533	1,501	2,885	3,002
VIE write-downs, losses and other expenses	1,694	1,732	2,301	2,352
Postage	927	795	1,841	1,644
Employee expenses	991	858	1,795	1,579
Loan expenses	1,182	607	1,791	1,143
Printing and supplies	906	855	1,696	1,669
Telephone	828	720	1,637	1,540
Checking and operating expenses	742	862	1,447	1,554
Accounting and audit fees	409	385	859	853
ATM expenses	303	305	569	568
Legal fees	183	419	448	638
Other	933	882	1,812	1,702
Total other expenses	$ 12,435	$ 10,685	$ 22,356	$ 19,634

Accumulated Other Comprehensi57

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income
Balance, beginning			$ 17,744	$ 9,645
Other comprehensive income before reclassification			(13,868)	14,487
Amounts reclassified from accumulated other comprehensive income			1,564	74
Net current period other comprehensive income	$ (12,587)	$ 8,918	(12,304)	14,561
Balance, end	5,440	24,206	5,440	24,206
Available-For-Sale Securities
Accumulated Other Comprehensive Income
Balance, beginning			27,945	8,485
Other comprehensive income before reclassification			(12,574)	21,628
Amounts reclassified from accumulated other comprehensive income			28	74
Net current period other comprehensive income			(12,546)	21,702
Balance, end	15,399	30,187	15,399	30,187
Derivatives Used for Cash Flow Hedges
Accumulated Other Comprehensive Income
Balance, beginning			(10,201)	1,160
Other comprehensive income before reclassification			(1,294)	(7,141)
Amounts reclassified from accumulated other comprehensive income			1,536	0
Net current period other comprehensive income			242	(7,141)
Balance, end	$ (9,959)	$ (5,981)	$ (9,959)	$ (5,981)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic and Diluted Earnings Per Share
Net income available to common stockholders, basic and diluted	$ 29,335	$ 28,677	$ 57,005	$ 55,407
Average outstanding shares - basic	75,530,591	74,467,576	75,369,366	74,452,568
Add: dilutive stock options and awards	35,064	32,084	38,255	38,891
Average outstanding shares - diluted	75,565,655	74,499,660	75,407,621	74,491,459
Basic earnings per share	$ 0.39	$ 0.38	$ 0.76	$ 0.74
Diluted earnings per share	$ 0.39	$ 0.38	$ 0.76	$ 0.74
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	Jun. 30, 2015	Dec. 31, 2014
Financial Assets
Total assets measured at fair value on a recurring basis	$ 2,361,830	$ 2,387,428
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	16,256	16,668
Interest rate swaps
Financial Liabilities
Interest rate swaps	16,256	16,668
U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	51,497	44
U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	80,761	21,945
State and local governments
Financial Assets
Investment securities, available-for-sale	958,052	997,969
Corporate bonds
Financial Assets
Investment securities, available-for-sale	355,849	314,854
Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	915,671	1,052,616
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	2,361,830	2,387,428
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	16,256	16,668
Level 2 | Interest rate swaps
Financial Liabilities
Interest rate swaps	16,256	16,668
Level 2 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	51,497	44
Level 2 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	80,761	21,945
Level 2 | State and local governments
Financial Assets
Investment securities, available-for-sale	958,052	997,969
Level 2 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	355,849	314,854
Level 2 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	915,671	1,052,616
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	Jun. 30, 2015	Dec. 31, 2014
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 5,021	$ 3,000
Collateral-dependent impaired loans, net of ALLL	12,192	15,480
Total assets measured at fair value on a non-recurring basis	17,213	18,480
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	5,021	3,000
Collateral-dependent impaired loans, net of ALLL	12,192	15,480
Total assets measured at fair value on a non-recurring basis	$ 17,213	$ 18,480

Quantitative Information about

Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 17,213	$ 18,480
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		17,213	18,480
Other real estate owned | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		5,021	3,000
Other real estate owned | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		1,479	2,393
Other real estate owned | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 3,542	$ 607
Other real estate owned | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	7.00%	0.00%
Adjustment to Comparables	[1]		0.00%
Other real estate owned | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Other real estate owned | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]		7.00%
Other real estate owned | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Other real estate owned | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	7.40%	5.80%
Adjustment to Comparables	[1]		0.50%
Other real estate owned | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 12,192	$ 15,480
Collateral-dependent Impaired Loans, Net of ALLL | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		6,179	6,330
Collateral-dependent Impaired Loans, Net of ALLL | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		5,760	3,809
Collateral-dependent Impaired Loans, Net of ALLL | Cost Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 253	6
Collateral-dependent Impaired Loans, Net of ALLL | Income Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value			$ 5,335
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	0.00%
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%	8.00%
Adjustment to Comparables	[1]	20.00%	10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		8.00%
Discount Rate	[1]		8.30%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]	5.00%	30.00%
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]	10.00%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		10.00%
Discount Rate	[1]		12.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.80%	8.30%
Adjustment to Comparables	[1]	0.00%	3.50%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	9.20%
Adjustment to Comparables	[1]	20.00%	16.20%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	5.60%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		8.50%
Discount Rate	[1]		9.10%
[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	Jun. 30, 2015	Dec. 31, 2014
Carrying Amount
Financial assets
Cash and cash equivalents	$ 355,719	$ 442,409
Investment securities, available-for-sale	2,361,830	2,387,428
Investment securities, held-to-maturity	593,314	520,997
Loans held for sale	53,201	46,726
Loans receivable, net of ALLL	4,676,912	4,358,342
Accrued interest receivable	44,563	40,587
Non-marketable equity securities	24,914	52,868
Total financial assets	8,110,453	7,849,357
Financial liabilities
Deposits	6,558,657	6,345,212
FHLB advances	329,470	296,944
Repurchase agreements and other borrowed funds	415,600	404,418
Subordinated debentures	125,776	125,705
Accrued interest payable	3,790	4,155
Interest rate swaps	16,256	16,668
Total financial liabilities	7,449,549	7,193,102
Estimated Fair Value | Level 1
Financial assets
Cash and cash equivalents	355,719	442,409
Investment securities, available-for-sale	0	0
Investment securities, held-to-maturity	0	0
Loans held for sale	53,201	46,726
Loans receivable, net of ALLL	0	0
Accrued interest receivable	44,563	40,587
Non-marketable equity securities	0	0
Total financial assets	453,483	529,722
Financial liabilities
Deposits	5,215,156	4,928,771
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Accrued interest payable	3,790	4,155
Interest rate swaps	0	0
Total financial liabilities	5,218,946	4,932,926
Estimated Fair Value | Level 2
Financial assets
Cash and cash equivalents	0	0
Investment securities, available-for-sale	2,361,830	2,387,428
Investment securities, held-to-maturity	608,781	550,946
Loans held for sale	0	0
Loans receivable, net of ALLL	4,608,899	4,288,417
Accrued interest receivable	0	0
Non-marketable equity securities	24,914	52,868
Total financial assets	7,604,424	7,279,659
Financial liabilities
Deposits	1,347,635	1,421,234
FHLB advances	339,179	312,363
Repurchase agreements and other borrowed funds	415,600	404,418
Subordinated debentures	78,442	76,711
Accrued interest payable	0	0
Interest rate swaps	16,256	16,668
Total financial liabilities	2,197,112	2,231,394
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	144,478	149,769
Accrued interest receivable	0	0
Non-marketable equity securities	0	0
Total financial assets	144,478	149,769
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

Consideration Transferred, Iden

Consideration Transferred, Identifiable Net Assets Acquired and Resulting Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Liabilities assumed
Goodwill recognized	$ 0	$ 0	$ 1,137	$ 0
Montana Community Banks, Inc.
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs			10,776
Cash consideration for outstanding shares			12,219
Contingent consideration			0
Total fair value of consideration transferred			22,995
Identifiable assets acquired
Cash and cash equivalents	31,931		31,931
Investment securities	42,350		42,350
Loans receivable	84,689		84,689
Core deposit intangible	2,087		2,087
Accrued income and other assets	13,580		13,580
Total identifiable assets acquired	174,637		174,637
Liabilities assumed
Deposits	146,820		146,820
FHLB advances and repurchase agreements	3,292		3,292
Accrued expenses and other liabilities	2,667		2,667
Total liabilities assumed	152,779		152,779
Total identifiable net assets	$ 21,858		21,858
Goodwill recognized			$ 1,137

Mergers and Acquisitions Pro Fo

Mergers and Acquisitions Pro Forma Summary (Details) - 2015 acquisitions - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Pro Forma Information
Net interest income and non-interest income	$ 97,050	$ 91,956	$ 191,004	$ 180,734
Net income	$ 29,335	$ 28,882	$ 57,006	$ 55,798

Mergers and Acquisitions (Detai

Mergers and Acquisitions (Details Textual) - Jun. 30, 2015 - Montana Community Banks, Inc. - USD ($)	Total
Business Acquisition
Effective Date of Acquisition	Feb. 28, 2015
Percentage of Outstanding Common Stock Acquired	100.00%
Business Combination, Consideration Transferred	$ 22,995,000
Number of Shares Issued for Aquisition	443,644
Cash consideration for outstanding shares	$ 12,219,000
Loans receivable	84,689,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due	88,817,000
Core deposit intangible	$ 2,087,000
Core Deposit Intangible Assets, Weighted Average Useful Life	10 years
Third-party Acquisition Related Costs	$ 1,427,000
Net interest income and non-interest income	3,028,000
Net loss	$ 173,000

Subsequent Event (Details Textu

Subsequent Event (Details Textual) - USD ($)		6 Months Ended
		Jun. 30, 2015	Jul. 30, 2015	Dec. 31, 2014
Subsequent Event
Subsequent Event, Date		Jul. 30, 2015
Subsequent Event, Description		the Company announced the signing of a definitive agreement to acquire Cañon National Bank, a community bank based in Cañon City, Colorado
Total assets		$ 8,589,810,000		$ 8,306,507,000
Gross loans	[1]	$ 4,807,431,000		$ 4,488,095,000
Canon National Bank
Subsequent Event
Total assets			$ 253,000,000
Gross loans			159,000,000
Total deposits			$ 225,000,000
[1]	Includes net deferred fees, costs, premiums and discounts of $13,312,000 and $13,710,000 at June 30, 2015 and December 31, 2014, respectively.

Uncategorized Items - gbci-2015

Label	Element	Value
Gain (Loss) on Sales of Loans, Net	us-gaap_GainLossOnSalesOfLoansNet	$ 4,778
Gain (Loss) on Sales of Loans, Net	us-gaap_GainLossOnSalesOfLoansNet	7,600
Amortization of Intangible Assets	us-gaap_AmortizationOfIntangibleAssets	693
Amortization of Intangible Assets	us-gaap_AmortizationOfIntangibleAssets	755
Gain (Loss) on Sale of Securities, Net	us-gaap_GainLossOnSaleOfSecuritiesNet	(48)
Gain (Loss) on Sale of Securities, Net	us-gaap_GainLossOnSaleOfSecuritiesNet	$ (98)