Heritage Financial (HFWA) 10-Q6 May 152015 Q1 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
Document and Entity Information	Mar. 31, 2015	Apr. 27, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	HERITAGE FINANCIAL CORP /WA/
Entity Central Index Key	1046025
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		30,243,417

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Financial Condition (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash on hand and in banks	$60,205	$74,028
Interest earning deposits	19,859	47,608
Cash and cash equivalents	80,064	121,636
Other interest earning deposits	9,364	10,126
Investment securities available for sale, at fair value	747,299	742,846
Investment securities held to maturity (fair value of $36,633 and $36,874, respectively)	35,425	35,814
Loans held for sale	8,742	5,582
Allowance for loan losses on noncovered loans	-27,816	-27,729
Total loans receivable, net	2,260,498	2,223,348
FDIC indemnification asset	692	1,116
Other real estate owned ($2,772 and $1,177 covered by FDIC shared-loss agreements, respectively)	4,094	3,355
Premises and equipment, net	64,547	64,938
Federal Home Loan Bank stock, at cost	12,022	12,188
Bank owned life insurance	35,346	35,176
Accrued interest receivable	10,132	9,836
Prepaid expenses and other assets	61,733	61,871
Other intangible assets, net	10,362	10,889
Goodwill	119,029	119,029
Total assets	3,459,349	3,457,750
LIABILITIES AND STOCKHOLDERS' EQUITY
Deposits	2,912,458	2,906,331
Federal Home Loan Bank Advances	7,420	0
Junior subordinated debentures	19,205	19,082
Securities sold under agreement to repurchase	23,177	32,181
Accrued expenses and other liabilities	34,563	45,650
Total liabilities	2,996,823	3,003,244
Stockholdersâ€™ equity:
Preferred stock, no par value, 2,500,000 shares authorized; no shares issued and outstanding at March 31, 2015 and December 31, 2014	0	0
Common stock, no par value, 50,000,000 shares authorized; 30,238,591 and 30,259,838 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	363,202	364,741
Retained earnings	93,140	86,387
Accumulated other comprehensive income, net	6,184	3,378
Total stockholdersâ€™ equity	462,526	454,506
Total liabilities and stockholdersâ€™ equity	3,459,349	3,457,750
Noncovered Loans
ASSETS
Noncovered loans receivable, net	2,170,693	2,124,877
Allowance for loan losses on noncovered loans	-22,317	-22,153
Noncovered loans receivable, net of allowance for loan losses	2,148,376	2,102,724
Covered Loans
ASSETS
Covered loans receivable, net	117,621	126,200
Allowance for loan losses on covered loans	-5,499	-5,576
Covered loans receivable, net of allowance for loan losses	$112,122	$120,624

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Investment securities held to maturity	$36,633	$36,874
Other real estate owned, covered by FDIC loss share	$2,772	$1,177
Preferred stock, par value (in usd per share)	$0	$0
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in usd per share)	$0	$0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	30,238,591	30,259,838
Common stock, shares outstanding	30,238,591	30,259,838

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
INTEREST INCOME:
Interest and fees on loans	$30,481	$16,451
Taxable interest on investment securities	2,684	639
Nontaxable interest on investment securities	1,033	436
Interest and dividends on other interest earning assets	51	87
Total interest income	34,249	17,613
INTEREST EXPENSE:
Deposits	1,318	854
Junior subordinated debentures	239	0
Other borrowings	18	18
Total interest expense	1,575	872
Net interest income	32,674	16,741
Provision for loan losses	1,208	458
Net interest income after provision for loan losses	31,466	16,283
NONINTEREST INCOME:
Service charges and other fees	3,295	1,398
Merchant Visa income, net	198	245
Change in FDIC indemnification asset	-193	-37
Gain on sale of investment securities, net	544	180
Gain on sale of loans, net	1,135	0
Other income	3,366	521
Total noninterest income	8,345	2,307
NONINTEREST EXPENSE:
Compensation and employee benefits	14,225	8,011
Occupancy and equipment	3,691	2,617
Data processing	1,627	996
Marketing	633	505
Professional services	805	830
State and local taxes	620	249
Impairment loss on investment of securities, net	0	8
Federal deposit insurance premium	516	252
Other real estate owned, net	658	52
Amortization of intangible assets	527	156
Other expense	2,736	1,103
Total noninterest expense	26,038	14,779
Income before income taxes	13,773	3,811
Income tax expense	3,994	1,268
Net income	9,779	2,543
Basic earnings per common share (in usd per share)	$0.32	$0.16
Diluted earnings per common share (in usd per share)	$0.32	$0.16
Dividends declared per common share (in usd per share)	$0.10	$0.16
Noncovered Loans
INTEREST EXPENSE:
Provision for loan losses		-21
Covered Loans
INTEREST EXPENSE:
Provision for loan losses		$479

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$9,779	$2,543
Change in fair value of securities available for sale, net of tax of $1,705 and $319, respectively	3,152	593
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $(191) and $(63), respectively	-354	-117
Accretion of other-than-temporary impairment on securities held to maturity, net of tax of $4 and $8, respectively	8	15
Other comprehensive income	2,806	491
Comprehensive income	$12,585	$3,034

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Change in fair value of securities available for sale, tax	$1,705	$319
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $(191) and $(63), respectively	-190	-63
Accretion of other-than-temporary impairment on securities held to maturity, tax	$4	$8

Condensed_Consolidated_Stateme5

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net
In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net
Beginning balance at Dec. 31, 2013	$215,762	$138,659	$78,265	($1,162)
Beginning balance, shares at Dec. 31, 2013		16,211,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted and unrestricted stock awards issued, net of forfeitures, shares		5,000
Restricted and unrestricted stock awards issued, net of forfeitures	0	0
Stock option compensation expense	15	15
Exercise of stock options (including tax effect from nonqualified stock options), shares	4,492	4,000
Exercise of stock options (including excess tax benefits from nonqualified stock options)	57	57
Restricted stock compensation expense	276	276
Excess tax benefits from restricted stock	32	32
Common stock repurchased and retired, shares		-9,000
Common stock repurchased	-165	-165
Net income	2,543		2,543
Other comprehensive income (loss), net of tax	491			491
Cash dividends declared on common stock	-2,594		-2,594
Ending balance at Mar. 31, 2014	216,417	138,874	78,214	-671
Ending balance, shares at Mar. 31, 2014		16,211,000
Beginning balance at Dec. 31, 2014	454,506	364,741	86,387	3,378
Beginning balance, shares at Dec. 31, 2014		30,260,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Restricted and unrestricted stock awards issued, net of forfeitures, shares		89,000
Restricted and unrestricted stock awards issued, net of forfeitures	0	0
Exercise of stock options (including tax effect from nonqualified stock options), shares	37,437	37,000
Exercise of stock options (including excess tax benefits from nonqualified stock options)	461	461
Restricted stock compensation expense	348	348
Excess tax benefits from restricted stock	26	26
Common stock repurchased and retired, shares		-147,000
Common stock repurchased	-2,374	-2,374
Net income	9,779		9,779
Other comprehensive income (loss), net of tax	2,806			2,806
Cash dividends declared on common stock	-3,026		-3,026
Ending balance at Mar. 31, 2015	$462,526	$363,202	$93,140	$6,184
Ending balance, shares at Mar. 31, 2015		30,239,000

Condensed_Consolidated_Stateme6

Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (Parenthetical) (USD $)	0 Months Ended						3 Months Ended
	Jan. 28, 2015	Nov. 11, 2014	Oct. 23, 2014	Jul. 24, 2014	Mar. 27, 2014	Jan. 29, 2014	Mar. 31, 2015	Mar. 31, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividends declared on common stock (in usd per share)	$0.10	$0.16	$0.09	$0.09	$0.08	$0.08	$0.10	$0.16

Condensed_Consolidated_Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$9,779	$2,543
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,392	2,666
Changes in net deferred loan fees, net of amortization	-630	-48
Provision for loan losses	1,208	458
Net change in accrued interest receivable, FDIC indemnification asset, prepaid expenses and other assets, accrued expenses and other liabilities	-10,948	-751
Restricted and unrestricted stock compensation expense	348	276
Stock option compensation expense	0	15
Excess tax benefits from stock options and restricted and unrestricted stock	-41	-32
Amortization of intangible assets	527	156
Gain on sale of investment securities, net	-544	-180
Impairment loss on investment of securities, net	0	8
Origination of loans held for sale	-29,150	0
Gain on sale of loans, net	-1,135	0
Proceeds from sale of loans held for sale	27,125	0
Earnings on bank owned life insurance	-170	-25
Valuation adjustment on other real estate owned	330	0
Loss (gain) on sale of other real estate owned, net	70	-27
Loss on sale or write-off of furniture, equipment and leasehold improvements	0	421
Net cash provided by operating activities	161	5,480
Cash flows from investing activities:
Loans originated, net of principal payments	-39,456	-5,180
Maturities of other interest earning deposits	747	497
Maturities of investment securities available for sale	28,899	7,343
Maturities of investment securities held to maturity	314	241
Purchase of investment securities available for sale	-55,728	-24,443
Purchase of investment securities held to maturity	0	-3,294
Purchase of premises and equipment	-545	-584
Proceeds from sales of other real estate owned	589	520
Proceeds from sales of investment securities available for sale	23,887	40,318
Proceeds from redemption of FHLB stock	166	75
Investment in low-income housing tax credit partnership	-236	0
Net cash (used in) provided by investing activities	-41,363	15,493
Cash flows from financing activities:
Net increase in deposits	6,127	5,025
Net increase in Federal Home Loan Bank advances	7,420	0
Common stock cash dividends paid	-3,026	-1,297
Net decrease in securities sold under agreement to repurchase	-9,004	-630
Proceeds from exercise of stock options	446	57
Excess tax benefits from stock options and restricted and unrestricted stock	41	32
Repurchase of common stock	-2,374	-165
Net cash (used in) provided by financing activities	-370	3,022
Net (decrease) increase in cash and cash equivalents	-41,572	23,995
Cash and cash equivalents at beginning of period	121,636	130,400
Cash and cash equivalents at end of period	80,064	154,395
Supplemental disclosures of cash flow information:
Cash paid for interest	1,720	887
Cash paid for income taxes	8,256	7
Supplemental non-cash disclosures of cash flow information:
Transfers of loans receivable to other real estate owned	1,728	218
Cash dividends declared but not paid	$0	$1,297

Description_of_Business_Basis_

Description of Business, Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business, Basis of Presentation and Significant Accounting Policies and Recently Issued Accounting Pronouncements	Description of Business, Basis of Presentation, Significant Accounting Policies and Recently Issued Accounting Pronouncements
	(a) Description of Business
	Heritage Financial Corporation ("Heritage" or the “Company”) is a bank holding company that was incorporated in the State of Washington in August 1997. The Company is primarily engaged in the business of planning, directing and coordinating the business activities of its wholly-owned subsidiary, Heritage Bank (the “Bank”). The Bank is a Washington-chartered commercial bank and its deposits are insured by the FDIC under the Deposit Insurance Fund. The Bank is headquartered in Olympia, Washington and conducts business from its sixty-six branch offices located throughout Washington State and the greater Portland, Oregon area. The Bank’s business consists primarily of commercial lending and deposit relationships with small businesses and their owners in its market areas and attracting deposits from the general public. The Bank also makes real estate construction and land development loans and consumer loans and originates first mortgage loans on residential properties primarily located in its market area.
	The Company has expanded its footprint through mergers and acquisitions. The largest of these transactions was the strategic merger with Washington Banking Company (“Washington Banking”) and its wholly owned subsidiary bank, Whidbey Island Bank ("Whidbey"). Effective May 1, 2014, Washington Banking merged with an into Heritage and Whidbey merged with an into Heritage Bank and is referred to herein as the "Washington Banking Merger".
	(b) Basis of Presentation
	The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with the accounting principles generally accepted in the United States (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. It is recommended that these unaudited Condensed Consolidated Financial Statements and accompanying Notes be read with the audited Consolidated Financial Statements and the accompanying Notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Annual Form 10-K”). In management's opinion, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. In preparing the unaudited Condensed Consolidated Financial Statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses. Management believes that the judgments, estimates and assumptions used in the preparation of the financial statements are appropriate based on the facts and circumstances at the time. Actual results, however, could differ from those estimates.
	Certain prior period amounts have been reclassified to conform to the current period’s presentation. Reclassifications had no effect on prior periods' net income or stockholders’ equity.
	(c) Significant Accounting Policies
	The significant accounting policies used in preparation of the Company's Condensed Consolidated Financial Statements are disclosed in the 2014 Annual Form 10-K. There have not been any material changes in the Company's significant accounting policies from those contained in the 2014 Annual Form 10-K.
	(d) Recently Issued Accounting Pronouncements
	Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU" or "Update") 2014-09, Revenue from Contracts with Customers, was issued in May 2014. Under this Update, FASB created a new Topic 606 which is in response to a joint initiative of FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP and international financial reporting standards that would:

	•	Remove inconsistencies and weaknesses in revenue requirements.

	•	Provide a more robust framework for addressing revenue issues.

	•	Improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets.

	•	Provide more useful information to users of financial statements through improved disclosure requirements.

	•	Simplify the preparation of financial statements by reducing the number of requirements to which an entity must refer.
	The Update is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. The Company is currently evaluating the impact that this Update will have on its Condensed Consolidated Financial Statements.
	FASB ASU 2014-11, Transfers and Servicing: Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, was issued in June 2014. This Update aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements, such as secured borrowings. The guidance eliminates sale accounting and supersedes the guidance under which a transfer of a financial asset and a contemporaneous repurchase financing could be accounted for on a combined basis as a forward agreement. The Update requires new and expanded disclosures that are effective for interim or annual reporting periods beginning after December 15, 2014, with certain requirements applicable for periods beginning after March 31, 2015. The adoption of this Update did not have a material impact on the Company's Condensed Consolidated Financial Statements.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities
	The Company’s investment policy is designed primarily to provide and maintain liquidity, generate a favorable return on assets without incurring undue interest rate and credit risk, and complement the Bank’s lending activities. Securities are classified as either available for sale or held to maturity when acquired.
	(a) Securities by Type and Maturity
	The amortized cost, gross unrealized gains, gross unrealized losses and fair values of investment securities available for sale at the dates indicated were as follows:


		Securities Available for Sale
		31-Mar-15
		Amortized			Gross			Gross				Fair
		Cost			Unrealized			Unrealized				Value
					Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	22,377		$	142		$	—			$	22,519

	Municipal securities	182,056			3,931			(156		)		185,831

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	524,832			6,773			(899		)		530,706

	Corporate obligations	6,264			5			(10		)		6,259

	Mutual funds and other equities	1,956			28			—				1,984

	Total	$	737,485		$	10,879		$	(1,065	)		$	747,299



		Securities Available for Sale
		31-Dec-14
		Amortized			Gross			Gross				Fair
		Cost			Unrealized			Unrealized				Value
					Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	21,414		$	44		$	(31	)		$	21,427

	Municipal securities	170,082			3,139			(184		)		173,037

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government agencies	539,859			4,015			(1,475		)		542,399

	Corporate obligations	4,034			—			(24		)		4,010

	Mutual funds and other equities	1,956			17			—				1,973

	Total	$	737,345		$	7,215		$	(1,714	)		$	742,846


	The amortized cost, gross unrecognized gains, gross unrecognized losses and fair values of investment securities held to maturity at the dates indicated were as follows:


		Securities Held to Maturity
		31-Mar-15
		Amortized			Gross			Gross				Fair
		Cost			Unrecognized			Unrecognized				Value
					Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	1,586		$	183		$	—			$	1,769

	Municipal securities	22,331			643			(12		)		22,962

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	10,665			449			(48		)		11,066

	Private residential collateralized mortgage obligations	843			80			(87		)		836

Total	$	35,425		$	1,355		$	(147	)		$	36,633



	Securities Held to Maturity
	31-Dec-14
	Amortized			Gross			Gross				Fair
	Cost			Unrecognized			Unrecognized				Value
				Gains			Losses
	(In thousands)
U.S. Treasury and U.S. Government-sponsored agencies	$	1,591		$	167		$	—			$	1,758

Municipal securities	22,486			643			(11		)		23,118

Mortgage backed securities and collateralized mortgage obligations-residential:
U.S. Government-sponsored agencies	10,866			364			(74		)		11,156

Private residential collateralized mortgage obligations	871			75			(104		)		842

Total	$	35,814		$	1,249		$	(189	)		$	36,874

There were no securities classified as trading at March 31, 2015 or December 31, 2014.
The amortized cost and fair value of securities at March 31, 2015, by contractual maturity, are set forth below. Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay obligations with or without call or prepayment penalties.


	Securities Available for Sale						Securities Held to Maturity
	Amortized			Fair Value			Amortized				Fair Value
	Cost						Cost
	(In thousands)
Due in one year or less	$	5,127		$	5,144		$	2,880			$	2,889

Due after one year through three years	34,103			34,347			4,240				4,280

Due after three years through five years	33,231			33,647			6,571				6,899

Due after five years through ten years	159,099			161,551			17,277				18,086

Due after ten years	503,969			510,626			4,457				4,479

Investment securities with no stated maturities	1,956			1,984			—				—

Total	$	737,485		$	747,299		$	35,425			$	36,633

(b) Unrealized Losses and Other-Than-Temporary Impairments
Available for sale investment securities with unrealized losses as of March 31, 2015 and December 31, 2014 were as follows:


	Securities Available for Sale
	31-Mar-15
	Less than 12 Months						12 Months or							Total
							Longer
	Fair			Unrealized			Fair				Unrealized			Fair		Unrealized
	Value			Losses			Value				Losses			Value		Losses
	(In thousands)
Municipal securities	$	23,537		$	(156	)	$	—			$	—		$	23,537	$	(156	)

Mortgage backed securities and collateralized mortgage obligations-residential:
U.S. Government-sponsored agencies	110,318			(899		)	—				—			110,318		(899		)

Corporate obligations	4,023			(10		)	—				—			4,023		(10		)

Total	$	137,878		$	(1,065	)	$	—			$	—		$	137,878	$	(1,065	)



	Securities Available for Sale
	31-Dec-14
	Less than 12 Months						12 Months or							Total
							Longer
	Fair			Unrealized			Fair				Unrealized			Fair		Unrealized
	Value			Losses			Value				Losses			Value		Losses
	(In thousands)
U.S. Treasury and U.S. Government-sponsored agencies	$	3,567		$	(31	)	$	—			$	—		$	3,567	$	(31	)

Municipal securities	25,176			(184		)	—				—			25,176		(184		)

Mortgage backed securities and collateralized mortgage obligations-residential:
U.S. Government-sponsored agencies	182,970			(1,475		)	—				—			182,970		(1,475		)

Corporate obligations	2,119			(24		)	—				—			2,119		(24		)

Total	$	213,832		$	(1,714	)	$	—			$	—		$	213,832	$	(1,714	)


Held to maturity investment securities with unrecognized losses as of March 31, 2015 and December 31, 2014 were as follows:


	Securities Held to Maturity
	31-Mar-15
	Less than 12						12 Months or							Total
	Months						Longer
	Fair			Unrecognized			Fair				Unrecognized			Fair		Unrecognized
	Value			Losses			Value				Losses			Value		Losses
	(In thousands)
Municipal securities	$	1,554		$	(12	)	$	—			$	—		$	1,554	$	(12	)

Mortgage backed securities and collateralized mortgage obligations-residential:
U.S. Government-sponsored agencies	2,556			(48		)	—				—			2,556		(48		)

Private residential collateralized mortgage obligations	554			(87		)	—				—			554		(87		)

Total	$	4,664		$	(147	)	$	—			$	—		$	4,664	$	(147	)




	Securities Held to Maturity
	31-Dec-14
	Less than 12						12 Months or							Total
	Months						Longer
	Fair			Unrecognized			Fair				Unrecognized			Fair		Unrecognized
	Value			Losses			Value				Losses			Value		Losses
	(In thousands)
Municipal securities	$	2,196		$	(11	)	$	—			$	—		$	2,196	$	(11	)

Mortgage backed securities and collateralized mortgage obligations-residential:
U.S. Government-sponsored agencies	2,553			(74		)	—				—			2,553		(74		)

Private residential collateralized mortgage obligations	558			(104		)	—				—			558		(104		)

Total	$	5,307		$	(189	)	$	—			$	—		$	5,307	$	(189	)

The Company has evaluated these securities and has determined that, other than certain private residential collateralized mortgage obligations discussed below, the decline in their value is temporary. The unrealized losses are primarily due to increases in market interest rates and larger spreads in the market for mortgage-related products. The fair value of these securities is expected to recover as the securities approach their maturity date and/or as the pricing spreads narrow on mortgage-related securities. The Company has the ability and intent to hold the investments until recovery of the market value which may be the maturity date of the securities.
To analyze the unrealized losses, the Company estimated expected future cash flows of the private residential collateralized mortgage obligations by estimating the expected future cash flows of the underlying collateral and applying those collateral cash flows, together with any credit enhancements such as subordination interests owned by third parties, to the security. The expected future cash flows of the underlying collateral are determined using the remaining contractual cash flows adjusted for future expected credit losses (which considers current delinquencies and nonperforming assets, future expected default rates and collateral value by vintage and geographic region) and prepayments. The expected cash flows of the security are then discounted at the interest rate used to recognize interest income on the security to arrive at a present value amount. The Company did not use any impairment assumptions as of March 31, 2015 as the unrealized losses were insignificant. The average prepayment rate and average discount rate used in the valuation of the present value as of March 31, 2014 were 6.0% and 6.7%, respectively.
For the three months ended March 31, 2015, there were no private residential collateralized mortgage obligations determined to be other-than-temporarily impaired and the Company recorded no unrealized losses for the three months ended March 31, 2015 in earnings or other comprehensive income. In comparison, for the three months ended March 31, 2014, there were two private residential collateralized mortgage obligations determined to be other-than-temporarily impaired. All unrealized losses for the three months ended March 31, 2014 were deemed to be credit related, and the Company recorded the impairment in earnings.
The following table summarizes activity for the three months ended March 31, 2015 and 2014 related to the amount of impairments on held to maturity securities:


	Life-to-Date Gross Other-Than-Temporary Impairments			Life-to-Date Other-Than-Temporary Impairments Included in Other Comprehensive Income			Life-to-Date Net
							Other-Than-Temporary Impairments Included in Earnings
	(In thousands)
December 31, 2013	$	2,603		$	1,152		$	1,451

Subsequent impairments	8			—			8

March 31, 2014	$	2,611		$	1,152		$	1,459


December 31, 2014	$	2,648		$	1,152		$	1,496

Subsequent impairments	—			—			—

March 31, 2015	$	2,648		$	1,152		$	1,496


(c) Pledged Securities
The following table summarizes the amortized cost and fair value of available for sale and held to maturity securities that are pledged as collateral for the following obligations at March 31, 2015 and December 31, 2014:


	March 31, 2015						December 31, 2014
	Amortized			Fair			Amortized				Fair
	Cost			Value			Cost				Value
	(In thousands)
Washington and Oregon state to secure public deposits	$	159,797		$	163,456		$	150,507			$	153,785

Federal Reserve Bank of San Francisco and FHLB to secure borrowing arrangements	516			517			4,430				4,460

Repurchase agreements	41,729			42,723			43,676				44,457

Other securities pledged	14,789			14,902			14,828				14,922

Total	$	216,831		$	221,598		$	213,441			$	217,624


At March 31, 2015 and December 31, 2014, the total carrying value of pledged securities was $220.4 million and $216.7 million, respectively.

Noncovered_Loans_Receivable

Noncovered Loans Receivable (Noncovered Loans)	3 Months Ended
	Mar. 31, 2015
Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Noncovered Loans Receivable	Noncovered Loans Receivable
	The Company originates loans in the ordinary course of business and has also acquired loans through FDIC-assisted and open bank transactions. Loans that are not covered by FDIC shared-loss agreements are referred to as "noncovered loans." Disclosures related to the Company’s recorded investment in noncovered loans receivable generally exclude accrued interest receivable and net deferred loan origination fees and costs because they are insignificant.
	Loans acquired in a business combination may be further classified as “purchased” loans. Loans purchased with evidence of credit deterioration since origination for which it is probable that not all contractually required payments will be collected are accounted for under FASB Accounting Standards Codification ("ASC") 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality. These loans are identified as “purchased credit impaired” ("PCI") loans. Loans purchased that are not accounted for under FASB ASC 310-30 are accounted for under FASB ASC 310-20, Receivables—Nonrefundable Fees and Other Costs and are referred to as "non-PCI" loans.
	(a) Loan Origination/Risk Management
	The Company categorizes loans in one of the four segments of the total loan portfolio: commercial business, one-to-four family residential, real estate construction and land development and consumer. Within these segments are classes of loans to which management monitors and assesses credit risk in the loan portfolios. The Company has certain lending policies and procedures in place that are designed to maximize loan income within an acceptable level of risk. Management reviews and approves these policies and procedures on a regular basis. A reporting system supplements the review process by providing management with frequent reports related to loan production, loan quality, concentrations of credit, loan delinquencies, and nonperforming and potential problem loans. The Company also conducts internal loan reviews and validates the credit risk assessment on a periodic basis and presents the results of these reviews to management. The loan review process complements and reinforces the risk identification and assessment decisions made by loan officers and credit personnel, as well as the Company’s policies and procedures.
	A discussion of the risk characteristics of each loan portfolio segment is as follows:
	Commercial Business:
	There are three significant classes of loans in the commercial portfolio segment: commercial and industrial loans, owner-occupied commercial real estate and non-owner occupied commercial real estate. The owner and non-owner occupied commercial real estate are both considered commercial real estate loans. As the commercial and industrial loans carry different risk characteristics than the commercial real estate loans, they are discussed separately below.
	Commercial and industrial. Commercial and industrial loans are primarily made based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. The cash flows of borrowers, however, may not be as expected and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may include a personal guarantee; however, some short-term loans may be made on an unsecured basis. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers.
	Commercial real estate. The Company originates commercial real estate loans within its primary market areas. These loans are subject to underwriting standards and processes similar to commercial and industrial loans, in addition to those of real estate loans. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate involves more risk than other classes of loans in that the lending typically involves higher loan principal amounts, and payments on loans secured by real estate properties are dependent on successful operation and management of the properties. Repayment of these loans may be more adversely affected by conditions in the real estate market or the economy. Owner-occupied commercial real estate loans are generally of lower credit risk than non-owner occupied commercial real estate loans as the borrowers' businesses are likely dependent on the properties.
	One-to-Four Family Residential:
	The majority of the Company’s one-to-four family residential loans are secured by single-family residences located in its primary market areas. The Company’s underwriting standards require that single-family portfolio loans generally are owner-occupied and do not exceed 80% of the lower of appraised value at origination or cost of the underlying collateral. Terms of maturity typically range from 15 to 30 years. Historically, the Company sold most single-family loans in the secondary market and retained a smaller portion in its loan portfolio. From the second quarter of 2013 until May 1, 2014, the Company only originated single-family loans for its loan portfolio. As a result of the Washington Banking Merger, since May 1, 2014 the Company has once again begun originating and selling a majority of its single-family mortgages.
	Real Estate Construction and Land Development:
	The Company originates construction loans for one-to-four family residential and for five or more family residential and commercial properties. The one-to-four family residential construction loans generally include construction of custom homes whereby the home buyer is the borrower. The Company also provides financing to builders for the construction of pre-sold homes and, in selected cases, to builders for the construction of speculative residential property. Substantially all construction loans are short-term in nature and priced with variable rates of interest. Construction lending can involve a higher level of risk than other types of lending because funds are advanced partially based upon the value of the project, which is uncertain prior to the project’s completion. Because of the uncertainties inherent in estimating construction costs as well as the market value of a completed project and the effects of governmental regulation of real property, the Company’s estimates with regard to the total funds required to complete a project and the related loan-to-value ratio may vary from actual results. As a result, construction loans often involve the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate project and the ability of the borrower to sell or lease the property or refinance the indebtedness. If the Company’s estimate of the value of a project at completion proves to be overstated, it may have inadequate security for repayment of the loan and may incur a loss if the borrower does not repay the loan. Sources of repayment for these types of loans may be pre-committed permanent loans from approved long-term lenders, sales of developed property or an interim loan commitment from the Company until permanent financing is obtained. These loans are closely monitored by on-site inspections and are considered to have higher risks than other real estate loans due to their ultimate repayment being dependent upon successful completion of the construction project, interest rate changes, government regulation of real property, general economic conditions and the availability of long-term financing.
	Consumer:
	The Company originates consumer loans and lines of credit that are both secured and unsecured. The underwriting process for these loans ensures a qualifying primary and secondary source of repayment. Underwriting standards for home equity loans are significantly influenced by statutory requirements, which include, but are not limited to, a maximum loan-to-value percentage of 80%, collection remedies, the number of such loans a borrower can have at one time and documentation requirements. To monitor and manage consumer loan risk, policies and procedures are developed and modified, as needed. The majority of consumer loans are for relatively small amounts disbursed among many individual borrowers which reduces the credit risk for this type of loan. To further reduce the risk, trend reports are reviewed by management on a regular basis.
	As a result of the Washington Banking Merger, the Company is originating indirect consumer loans. These loans are for new and used automobile and recreational vehicles that are originated indirectly by selected dealers located in the Company's market areas. The Company has limited its indirect loans purchased primarily to dealerships that are established and well known in their market areas and to applicants that are not classified as sub-prime.
	Noncovered loans receivable at March 31, 2015 and December 31, 2014 consisted of the following portfolio segments and classes:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	559,363			$	551,343

	Owner-occupied commercial real estate	558,198				535,742

	Non-owner occupied commercial real estate	631,627				616,757

	Total commercial business	1,749,188				1,703,842

	One-to-four family residential	63,944				63,540

	Real estate construction and land development:
	One-to-four family residential	42,993				46,749

	Five or more family residential and commercial properties	57,898				61,360

	Total real estate construction and land development	100,891				108,109

	Consumer	256,977				250,323

	Gross noncovered loans receivable	2,171,000				2,125,814

	Net deferred loan fees	(307		)		(937		)
	Noncovered loans receivable, net	2,170,693				2,124,877

	Allowance for loan losses	(22,317		)		(22,153		)
	Noncovered loans receivable, net of allowance for loan losses	$	2,148,376			$	2,102,724

	(b) Concentrations of Credit
	Most of the Company’s lending activity occurs within Washington State, and to a lesser extent Oregon. The Company’s primary market areas have been concentrated along the I-5 corridor from Whatcom County to Clark County in Washington State and Multnomah County in Oregon, as well as other contiguous markets. The Washington Banking Merger has allowed the expansion of the market area north of Seattle, Washington to the Canadian border. The majority of the Company’s loan portfolio consists of (in order of balances at March 31, 2015) non-owner occupied commercial real estate, commercial and industrial and owner-occupied commercial real estate. As of March 31, 2015 and December 31, 2014, there were no concentrations of loans related to any single industry in excess of 10% of the Company’s total loans.
	(c) Credit Quality Indicators
	As part of the on-going monitoring of the credit quality of the Company’s loan portfolio, management tracks certain credit quality indicators including trends related to (i) the risk grade of the loans, (ii) the level of classified loans, (iii) net charge-offs, (iv) nonperforming loans, and (v) the general economic conditions of the United States of America, and specifically the states of Washington and Oregon. The Company utilizes a risk grading matrix to assign a risk grade to each of its loans. Loans are graded on a scale of 0 to 10. A description of the general characteristics of the risk grades is as follows:

	•	Grades 0 to 5: These grades are considered “pass grade” and include loans with negligible to above average but acceptable risk. These borrowers generally have strong to acceptable capital levels and consistent earnings and debt service capacity. Loans with the higher grades within the “pass” category may include borrowers who are experiencing unusual operating difficulties, but have acceptable payment performance to date. Increased monitoring of financials and/or collateral may be appropriate. Loans with this grade show no immediate loss exposure.

	•	Grade 6: This grade includes "Watch" loans and is considered a “pass grade”. The grade is intended to be utilized on a temporary basis for pass grade borrowers where a potentially significant risk-modifying action is anticipated in the near term.

	•	Grade 7: This grade includes “Other Assets Especially Mentioned” (“OAEM”) loans in accordance with regulatory guidelines, and is intended to highlight loans with elevated risks. Loans with this grade show signs of deteriorating profits and capital, and the borrower might not be strong enough to sustain a major setback. The borrower is typically higher than normally leveraged, and outside support might be modest and likely illiquid. The loan is at risk of further decline unless active measures are taken to correct the situation.

	•	Grade 8: This grade includes “Substandard” loans in accordance with regulatory guidelines, which the Company has determined have a high credit risk. These loans also have well-defined weaknesses which make payment default or principal exposure likely, but not yet certain. The borrower may have shown serious negative trends in financial ratios and performance. Such loans may be dependent upon collateral liquidation, a secondary source of repayment or an event outside of the normal course of business. Loans with this grade can be placed on accrual or nonaccrual status based on the Company’s accrual policy.

	•	Grade 9: This grade includes “Doubtful” loans in accordance with regulatory guidelines, and the Company has determined these loans to have excessive credit risk. Such loans are placed on nonaccrual status and may be dependent upon collateral having a value that is difficult to determine or upon some near-term event which lacks certainty. Additionally, these loans generally have a specific valuation allowance or have been partially charged-off for the amount considered uncollectible.

•	Grade 10: This grade includes “Loss” loans in accordance with regulatory guidelines, and the Company has determined these loans have the highest risk of loss. Such loans are charged-off or charged-down when payment is acknowledged to be uncertain or when the timing or value of payments cannot be determined. “Loss” is not intended to imply that the loan or some portion of it will never be paid, nor does it in any way imply that there has been a forgiveness of debt.
Numerical loan grades for all commercial business loans and real estate construction and land development loans are established at the origination of the loan. Prior to November 2014, one-to-four family residential loans and consumer loans (“non-commercial loans”) were not numerically graded at origination date as these loans were determined to be “pass graded” loans. A numeric grade was assigned to these non-commercial loans if subsequent to origination, the credit department evaluated the credit and determined it necessary to classify the loan. Subsequent to November 2014, the non-commercial loans were designated a loan grade “4” at origination date to reflect a "pass grade". The Bank follows the FDIC’s Uniform Retail Credit Classification and Account Management Policy for subsequent classification in the event of payment delinquencies or default. Loan grades are reviewed on a quarterly basis, or more frequently if necessary, by the credit department. Typically, an individual loan grade will not be changed from the prior period unless there is a specific indication of credit deterioration or improvement. Credit deterioration is evidenced by delinquency, direct communications with the borrower, or other borrower information that becomes known to management. Credit improvements are evidenced by known facts regarding the borrower or the collateral property.
The loan grades relate to the likelihood of losses in that the higher the grade, the greater the loss potential. Loans with a pass grade may have some estimated inherent losses, but to a lesser extent than the other loan grades. The OAEM loan grade is transitory in that the Company is waiting on additional information to determine the likelihood and extent of the potential loss. The likelihood of loss for OAEM graded loans, however, is greater than Watch graded loans because there has been measurable credit deterioration. Loans with a Substandard grade are generally loans for which the Company has individually analyzed for potential impairment. For Doubtful and Loss graded loans, the Company is almost certain of the losses, and the unpaid principal balances are generally charged-off to the realizable value.
The following tables present the balance of the noncovered loans receivable by credit quality indicator as of March 31, 2015 and December 31, 2014.


	March 31, 2015
	Pass				OAEM				Substandard				Doubtful		Total
	(In thousands)
Commercial business:
Commercial and industrial	$	526,439			$	12,784			$	19,826			$	314	$	559,363

Owner-occupied commercial real estate	526,401				18,660				13,137				—		558,198

Non-owner occupied commercial real estate	600,563				16,297				14,767				—		631,627

Total commercial business	1,653,403				47,741				47,730				314		1,749,188

One-to-four family residential	61,534				313				2,097				—		63,944

Real estate construction and land development:
One-to-four family residential	32,778				3,355				6,860				—		42,993

Five or more family residential and commercial properties	54,011				—				3,887				—		57,898

Total real estate construction and land development	86,789				3,355				10,747				—		100,891

Consumer	249,831				—				7,146				—		256,977

Gross noncovered loans	$	2,051,557			$	51,409			$	67,720			$	314	$	2,171,000




	December 31, 2014
	Pass				OAEM				Substandard				Doubtful		Total
	(In thousands)
Commercial business:
Commercial and industrial	$	509,483			$	14,487			$	27,049			$	324	$	551,343

Owner-occupied commercial real estate	496,234				22,946				16,562				—		535,742

Non-owner occupied commercial real estate	584,262				17,643				14,852				—		616,757

Total commercial business	1,589,979				55,076				58,463				324		1,703,842

One-to-four family residential	61,185				315				2,040				—		63,540

Real estate construction and land development:
One-to-four family residential	34,356				3,977				8,416				—		46,749

Five or more family residential and commercial properties	57,025				—				4,335				—		61,360

Total real estate construction and land development	91,381				3,977				12,751				—		108,109

Consumer	242,836				—				7,487				—		250,323

Gross noncovered loans	$	1,985,381			$	59,368			$	80,741			$	324	$	2,125,814


Noncovered potential problem loans are loans classified as OAEM or worse that are currently accruing interest and are not considered impaired, but which management is monitoring because the financial information of the borrower causes concern as to their ability to meet their loan repayment terms. Noncovered potential problem loans also include PCI loans as these loans continue to accrete loan discounts established at acquisition based on the guidance of ASC 310-30. Noncovered potential problem loans as of March 31, 2015 and December 31, 2014 were $100.4 million and $117.3 million, respectively. The balance of noncovered potential problem loans guaranteed by a governmental agency, which guarantee reduces the Company's credit exposure, was $576,000 and $2.0 million as of March 31, 2015 and December 31, 2014, respectively.
(d) Nonaccrual Loans
Nonaccrual noncovered loans, segregated by segments and classes of loans, were as follows as of March 31, 2015 and December 31, 2014:


	March 31, 2015				December 31, 2014
	(In thousands)
Commercial business:
Commercial and industrial	$	3,852			$	3,463

Owner-occupied commercial real estate	1,066				1,163

Non-owner occupied commercial real estate	—				93

Total commercial business	4,918				4,719

One-to-four family residential	—				—

Real estate construction and land development:
One-to-four family residential	2,513				2,652

Total real estate construction and land development	2,513				2,652

Consumer	21				139

Gross nonaccrual noncovered loans	$	7,452			$	7,510

The Company had $1.7 million and $1.6 million of nonaccrual noncovered loans guaranteed by governmental agencies at March 31, 2015 and December 31, 2014, respectively.
PCI noncovered loans are not included in the nonaccrual loan table above because these loans are accounted for under ASC 310-30, which provides that accretable yield is calculated based on a loan's expected cash flow even if the loan is not performing under its conventional terms.
(e) Past due loans
The Company performs an aging analysis of past due loans using the categories of 30-89 days past due and 90 or more days past due. This policy is consistent with regulatory reporting requirements.
The balances of past due noncovered loans, segregated by segments and classes of loans, as of March 31, 2015 and December 31, 2014 were as follows:


	March 31, 2015
	30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
					Greater				Due								and Still
																	Accruing (1)
	(In thousands)
Commercial business:
Commercial and industrial	$	1,081			$	2,770			$	3,851			$	555,512	$	559,363	$	—

Owner-occupied commercial real estate	2,063				333				2,396				555,802		558,198		—

Non-owner occupied commercial real estate	5,167				—				5,167				626,460		631,627		—

Total commercial business	8,311				3,103				11,414				1,737,774		1,749,188		—

One-to-four family residential	391				—				391				63,553		63,944		—

Real estate construction and land development:
One-to-four family residential	760				1,964				2,724				40,269		42,993		—

Five or more family residential and commercial properties	—				—				—				57,898		57,898		—

Total real estate construction and land development	760				1,964				2,724				98,167		100,891		—

Consumer	2,181				—				2,181				254,796		256,977		—

Gross noncovered loans	$	11,643			$	5,067			$	16,710			$	2,154,290	$	2,171,000	$	—

(1) Excludes PCI loans.


	December 31, 2014
	30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
					Greater				Due								and Still
																	Accruing (1)
	(In thousands)
Commercial business:
Commercial and industrial	$	2,503			$	1,962			$	4,465			$	546,878	$	551,343	$	—

Owner-occupied commercial real estate	1,038				100				1,138				534,604		535,742		—

Non-owner occupied commercial real estate	113				75				188				616,569		616,757		—

Total commercial business	3,654				2,137				5,791				1,698,051		1,703,842		—

One-to-four family residential	200				—				200				63,340		63,540		—

Real estate construction and land development:
One-to-four family residential	62				2,135				2,197				44,552		46,749		—

Five or more family residential and commercial properties	—				376				376				60,984		61,360		—

Total real estate construction and land development	62				2,511				2,573				105,536		108,109		—

Consumer	2,413				125				2,538				247,785		250,323		—

Gross noncovered loans	$	6,329			$	4,773			$	11,102			$	2,114,712	$	2,125,814	$	—

(1) Excludes PCI loans.


(f) Impaired loans

Impaired noncovered loans includes nonaccrual noncovered loans and performing troubled debt restructured noncovered loans ("TDRs") and excludes certain performing troubled debt restructured noncovered loans classified as PCI as these loans are recorded at the recorded investment balance and may not have further impairment. The balance of impaired noncovered loans as of March 31, 2015 and December 31, 2014 are set forth in the following tables.


	March 31, 2015
	Recorded				Recorded				Total				Unpaid		Related
	Investment With				Investment With				Recorded				Contractual		Specific
	No Specific				Specific				Investment				Principal		Valuation
	Valuation				Valuation								Balance		Allowance
	Allowance				Allowance
	(In thousands)
Commercial business:
Commercial and industrial	$	2,129			$	6,199			$	8,328			$	9,341	$	797

Owner-occupied commercial real estate	—				2,339				2,339				2,669		629

Non-owner occupied commercial real estate	2,441				4,660				7,101				7,093		783

Total commercial business	4,570				13,198				17,768				19,103		2,209

One-to-four family residential	—				244				244				244		75

Real estate construction and land development:
One-to-four family residential	2,589				994				3,583				4,152		152

Five or more family residential and commercial properties	—				2,032				2,032				2,032		204

Total real estate construction and land development	2,589				3,026				5,615				6,184		356

Consumer	—				125				125				127		22

Total	$	7,159			$	16,593			$	23,752			$	25,658	$	2,662



	December 31, 2014
	Recorded				Recorded				Total				Unpaid		Related
	Investment With				Investment With				Recorded				Contractual		Specific
	No Specific				Specific				Investment				Principal		Valuation
	Valuation				Valuation								Balance		Allowance
	Allowance				Allowance
	(In thousands)
Commercial business:
Commercial and industrial	$	1,134			$	7,906			$	9,040			$	9,349	$	1,325

Owner-occupied commercial real estate	360				2,421				2,781				2,781		684

Non-owner occupied commercial real estate	2,459				4,846				7,305				7,279		465

Total commercial business	3,953				15,173				19,126				19,409		2,474

One-to-four family residential	—				245				245				245		75

Real estate construction and land development:
One-to-four family residential	2,307				2,217				4,524				4,964		396

Five or more family residential and commercial properties	—				2,056				2,056				2,056		234

Total real estate construction and land development	2,307				4,273				6,580				7,020		630

Consumer	33				172				205				208		56

Total	$	6,293			$	19,863			$	26,156			$	26,882	$	3,235


The Company had governmental guarantees of $2.2 million and $2.4 million related to the impaired noncovered loan balances at March 31, 2015 and December 31, 2014, respectively.
The average recorded investment of impaired noncovered loans for the three months ended March 31, 2015 and 2014 are set forth in the following table.


	Three Months Ended March 31,
	2015				2014
	(In thousands)
Commercial business:
Commercial and industrial	$	8,684			$	14,935

Owner-occupied commercial real estate	2,560				3,189

Non-owner occupied commercial real estate	7,203				7,396

Total commercial business	18,447				25,520

One-to-four family residential	244				380

Real estate construction and land development:
One-to-four family residential	4,053				5,591

Five or more family residential and commercial properties	2,044				2,265

Total real estate construction and land development	6,097				7,856

Consumer	166				889

Total	$	24,954			$	34,645

For the three months ended March 31, 2015 and 2014, no interest income was recognized subsequent to a loan’s classification as nonaccrual. For the three months ended March 31, 2015 and 2014, the Bank recorded $196,000 and $247,000, respectively, of interest income related to performing TDR noncovered loans.
(g) Troubled Debt Restructured Loans
A troubled debt restructured loan is a restructuring in which the Bank, for economic or legal reasons related to a borrower’s financial difficulties, grants a concession to the borrower that it would not otherwise consider. TDRs are considered impaired and are separately measured for impairment under FASB ASC 310-10-35, whether on accrual ("performing") or nonaccrual ("nonperforming") status.
The majority of the Bank’s TDR noncovered loans are a result of granting extensions of maturity on troubled credits which have already been adversely classified. The Bank grants such extensions to reassess the borrower’s financial status and to develop a plan for repayment. Certain modifications with extensions also include interest rate reductions, which is the second most prevalent concession. Certain TDRs were additionally re-amortized over a longer period of time. The Bank additionally advanced funds to a troubled speculative home builder to complete established projects. These modifications would all be considered a concession for a borrower that could not obtain similar financing terms from another source other than from the Bank.
The financial effects of each modification will vary based on the specific restructure. For the majority of the Bank’s TDRs, the noncovered loans were interest-only with a balloon payment at maturity. If the interest rate is not adjusted and the modified terms are consistent with other similar credits being offered, the Bank may not experience any loss associated with the restructure. If, however, the restructure involves forbearance agreements or interest rate modifications, the Bank may not collect all the principal and interest based on the original contractual terms. The Bank estimates the necessary allowance for loan losses on noncovered TDRs using the same guidance as used for other noncovered impaired loans.
The recorded investment balance and related allowance for loan losses of performing and nonaccrual TDR noncovered loans as of March 31, 2015 and December 31, 2014 were as follows:


	March 31, 2015								December 31, 2014
	Performing				Nonaccrual				Performing				Nonaccrual
	TDRs				TDRs				TDRs				TDRs
	(In thousands)
TDR noncovered loans	$	16,736			$	5,325			$	18,764			$	5,010

Allowance for loan losses on TDR noncovered loans	1,989				497				1,908				1,033


The unfunded commitment to borrowers related to noncovered TDRs was $1.0 million and $1.8 million at March 31, 2015 and December 31, 2014, respectively.
Noncovered loans that were modified as TDRs during the three months ended March 31, 2015 and 2014 are set forth in the following table:


	Three Months Ended March 31,
	2015							2014
	Number of			Outstanding				Number of		Outstanding
	Contracts			Principal Balance				Contracts		Principal Balance
	-1			(1)(2)				-1		(1)(2)
	(Dollars in thousands)
Commercial business:
Commercial and industrial	8			$	1,069			9		$	2,213

Owner-occupied commercial real estate	—			—				1		351

Total commercial business	8			1,069				10		2,564

Real estate construction and land development:
One-to-four family residential	4			2,520				1		190

Total real estate construction and land development	4			2,520				1		190

Consumer	1			39				3		222

Total TDR noncovered loans	13			$	3,628			14		$	2,976


-1	Number of contracts and outstanding principal balance represent loans which have balances as of period end as certain loans may have been paid-down or charged-off during the three months ended March 31, 2015 and 2014.

-2	Includes subsequent payments after modifications and reflects the balance as of period end. As the Bank did not forgive any principal or interest balance as part of the loan modification, the Bank’s recorded investment in each loan at the date of modification (pre-modification) did not change as a result of the modification (post-modification), except when the modification was the initial advance on a one-to-four family residential real estate construction and land development loan under a master guidance line. There were no advances on these types of loans during the three months ended March 31, 2015 or 2014.
Of the 13 noncovered loans modified during the three months ended March 31, 2015, six loans with a total outstanding principal balance of $925,000 had no prior modifications. Of the 14 noncovered loans modified during the three months ended March 31, 2014, four loans with a total outstanding principal balance of $761,000 had no prior modifications. The remaining noncovered loans included in the tables above for the three months ended March 31, 2015 and 2014 were previously reported as noncovered TDRs. The Bank typically grants shorter extension periods to continually monitor the troubled credits despite the fact that the extended date might not be the date the Bank expects the cash flow. The Company does not consider these modifications a subsequent default of a noncovered TDR as new loan terms, specifically maturity dates, were granted. The potential losses related to these loans would have been considered in the period the loan was first reported as a noncovered TDR and adjusted, as necessary, in the current periods based on more recent information. The related specific valuation allowance at March 31, 2015 for noncovered loans that were modified as TDRs during the three months ended March 31, 2015 was $286,000.
The noncovered loans modified during the previous twelve months ended March 31, 2015 and 2014 that subsequently defaulted during the three months ended March 31, 2015 and 2014 are included in the following table:


	Three Months Ended							Three Months Ended
	March 31, 2015							March 31, 2014
	Number of			Outstanding				Number of			Outstanding
	Contracts			Principal				Contracts			Principal
				Balance							Balance
	(Dollars in thousands)
Commercial business:
Commercial and industrial	1			$	77			3			$	799

Non-owner occupied commercial real estate	—			—				1			3

Total commercial business	1			77				4			802

Real estate construction and land development:
One-to-four family residential	1			865				—			—

Total real estate construction and land development	1			865				—			—

Total	2			$	942			4			$	802

The one-to-four family residential real estate construction loan totaling $865,000 included in the above table defaulted during the three months ended March 31, 2015 because it was past its modified maturity date, and the borrower had not repaid the credit. The Bank does not intend to extend the maturity date. All other loans included in the table above for both periods defaulted as the loans were greater than 90 days past due. The Bank had a specific valuation allowance at March 31, 2015 related to the credits which defaulted during the three months ended March 31, 2015 of $8,000.

(h) Purchased Credit Impaired Loans
The Company acquired PCI noncovered loans in the Washington Banking Merger and in previously completed acquisitions which are accounted for under FASB ASC 310-30. These previous acquisitions include the FDIC-assisted acquisitions of Cowlitz Bank ("Cowlitz") and Pierce Commercial Bank ("Pierce") on July 30, 2010 and November 8, 2010, respectively. In addition, the Company completed the acquisitions of Northwest Commercial Bank ("NCB") on January 9, 2013 and Valley Community Bancshares, Inc. ("Valley") on July 15, 2013.
The following table reflects the outstanding principal balance and recorded investment at March 31, 2015 and December 31, 2014 of the PCI noncovered loans:


	March 31, 2015								31-Dec-14
	Outstanding Principal				Recorded Investment				Outstanding Principal				Recorded Investment
	(In thousands)
Commercial business:
Commercial and industrial	$	20,400			$	17,162			$	22,144			$	18,040

Owner-occupied commercial real estate	15,980				14,448				18,165				16,208

Non-owner occupied commercial real estate	12,482				11,043				12,684				11,185

Total commercial business	48,862				42,653				52,993				45,433

One-to-four family residential	2,250				2,229				2,269				2,235

Real estate construction and land development:
One-to-four family residential	8,123				3,816				8,456				4,223

Five or more family residential and commercial properties	2,272				2,492				2,721				2,963

Total real estate construction and land development	10,395				6,308				11,177				7,186

Consumer	5,574				6,680				5,983				7,055

Gross PCI noncovered loans	$	67,081			$	57,870			$	72,422			$	61,909

On the acquisition dates, the amount by which the undiscounted expected cash flows of the PCI noncovered loans exceeded the estimate fair value of the loan is the “accretable yield”. The accretable yield is then measured at each financial reporting date and represents the difference between the remaining undiscounted expected cash flows and the current carrying value of the PCI noncovered loans.
The following table summarizes the accretable yield on the PCI noncovered loans resulting from the Pierce, NCB, Valley and Washington Banking acquisitions for the three months ended March 31, 2015 and 2014.


		Three Months Ended March 31,
		2015				2014
		(In thousands)
Balance at the beginning of the period		$	12,572			$	7,714

Accretion		(1,012		)		(828		)
Disposal and other		(284		)		(633		)
Change in accretable yield		2,739				836

Balance at the end of the period		$	14,015			$	7,089

Covered_Loans_Receivable

Covered Loans Receivable (Covered Loans)	3 Months Ended
	Mar. 31, 2015
Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans Receivable	Covered Loans Receivable
	The Company acquired loans through FDIC-assisted transactions which are covered by FDIC shared-loss agreements. These loans are referred to as "covered loans." Covered loans were acquired in the Cowlitz acquisition in July 2010 and in the Washington Banking Merger in May 2014. Included in the covered loans acquired from Washington Banking were loans Washington Banking had acquired from City Bank in April 2010 and North County Bank in September 2010. As part of the Washington Banking Merger, the shared-loss agreements with these acquisitions were transferred to Heritage Bank.
	Loans purchased with evidence of credit deterioration since origination for which it is probable that not all contractually required payments will be collected are accounted for under FASB ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality and are identified as PCI loans. Loans purchased that are not accounted for under FASB ASC 310-30 are accounted for under FASB ASC 310-20, Receivables—Nonrefundable Fees and Other Costs and are referred to as "non-PCI" loans.
	Disclosures related to the Company’s recorded investment in covered loans receivable generally exclude accrued interest receivable because it is insignificant.
	(a) Risk Management
	The Company categorizes covered loans in the same four segments as the noncovered portfolio: commercial business, real estate construction and land development, one-to-four family residential and consumer.
	The recorded investment of covered loans receivable at March 31, 2015 and December 31, 2014 consisted of the following portfolio segments and classes:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	19,389			$	19,110

	Owner-occupied commercial real estate	55,389				59,244

	Non-owner occupied commercial real estate	23,279				26,879

	Total commercial business	98,057				105,233

	One-to-four family residential	5,775				5,990

	Real estate construction and land development:
	One-to-four family residential	2,338				2,446

	Five or more family residential and commercial properties	3,152				3,560

	Total real estate construction and land development	5,490				6,006

	Consumer	8,299				8,971

	Gross covered loans receivable	117,621				126,200

	Allowance for loan losses	(5,499		)		(5,576		)
	Covered loans receivable, net	$	112,122			$	120,624

	At March 31, 2015 and December 31, 2014, the recorded investment balance of loans which are no longer covered under the FDIC shared-loss agreements, but are included in the covered loan table above as they are included in the loan pool established at the time of acquisition, was $1.2 million and $872,000, respectively.
	(b) Credit Quality Indicators
	The following tables present the recorded invested balance of the covered loans receivable by credit quality indicator as of March 31, 2015 and December 31, 2014.


		March 31, 2015
		Pass				OAEM				Substandard				Doubtful			Total
		(In thousands)
	Commercial business:
	Commercial and industrial	$	12,254			$	105			$	4,850			$	2,180		$	19,389

	Owner-occupied commercial real estate	39,628				3,983				11,529				249			55,389

	Non-owner occupied commercial real estate	8,427				36				13,691				1,125			23,279

	Total commercial business	60,309				4,124				30,070				3,554			98,057

	One-to-four family residential	5,432				—				343							5,775

	Real estate construction and land development:
	One-to-four family residential	2,075				—				263				—			2,338

	Five or more family residential and commercial properties	1,534				—				1,618				—			3,152

	Total real estate construction and land development	3,609				—				1,881				—			5,490

	Consumer	6,369				—				1,930				—			8,299

Gross covered loans receivable	$	75,719			$	4,124			$	34,224			$	3,554		$	117,621



	December 31, 2014
	Pass				OAEM				Substandard				Doubtful			Total
	(In thousands)
Commercial business:
Commercial and industrial	$	11,297			$	131			$	5,442			$	2,240		$	19,110

Owner-occupied commercial real estate	40,357				4,957				13,583				347			59,244

Non-owner occupied commercial real estate	9,656				40				17,183				—			26,879

Total commercial business	61,310				5,128				36,208				2,587			105,233

One-to-four family residential	5,414				425				151				—			5,990

Real estate construction and land development:
One-to-four family residential	2,178				—				268				—			2,446

Five or more family residential and commercial properties	1,758				—				1,802				—			3,560

Total real estate construction and land development	3,936				—				2,070				—			6,006

Consumer	7,030				—				1,941				—			8,971

Gross covered loans receivable	$	77,690			$	5,553			$	40,370			$	2,587		$	126,200


(c) Nonaccrual Loans
The recorded investment balance of nonaccrual covered loans, segregated by segments and classes of loans, were as follows as of March 31, 2015 and December 31, 2014:


	March 31, 2015				December 31, 2014
	(In thousands)
Commercial business:
Commercial and industrial	$	2,180			$	2,321

Owner -occupied commercial real estate	1,111				1,132

Non-owner-occupied commercial real estate	413				424

Total commercial business	3,704				3,877

One-to-four family residential	174				179

Consumer	6				6

Gross nonaccrual covered loans	$	3,884			$	4,062

PCI covered loans are not included in the nonaccrual table above because the loans are accounted for under ASC 310-30, whereby accretable yield is calculated based on a loan's expected cash flow even if the loan is not performing under its conventional terms.
(d) Past Due Loans
The balances of past due covered loans, segregated by segments and classes of loans, as of March 31, 2015 and December 31, 2014 were as follows:


	March 31, 2015
	30-89 Days				90 Days or				Total Past				Current			Total			90 Days or More
					Greater				Due										and Still
																			Accruing (1)
	(In thousands)
Commercial business:
Commercial and industrial	$	222			$	2,803			$	3,025			$	16,364		$	19,389		$	—

Owner-occupied commercial real estate	353				570				923				54,466			55,389			—

Non-owner occupied commercial real estate	—				460				460				22,819			23,279			—

Total commercial business	575				3,833				4,408				93,649			98,057			—

One-to-four family residential	111				—				111				5,664			5,775			—

Real estate construction and land development:
One-to-four family residential	—				89				89				2,249			2,338			—

Five or more family residential and commercial properties	—				40				40				3,112			3,152			—

Total real estate construction and land development	—				129				129				5,361			5,490			—

Consumer	140				736				876				7,423			8,299			—

Gross covered loans receivable	$	826			$	4,698			$	5,524			$	112,097		$	117,621		$	—

(1) Excludes covered PCI loans.


	December 31, 2014
	30-89 Days				90 Days or				Total Past				Current			Total			90 Days or More
					Greater				Due										and Still
																			Accruing (1)
	(In thousands)
Commercial business:
Commercial and industrial	$	2,262			$	1,163			$	3,425			$	15,685		$	19,110		$	—

Owner-occupied commercial real estate	645				2,680				3,325				55,919			59,244			—

Non-owner occupied commercial real estate	1,713				456				2,169				24,710			26,879			—

Total commercial business	4,620				4,299				8,919				96,314			105,233			—

One-to-four family residential	112				—				112				5,878			5,990			—

Real estate construction and land development:
One-to-four family residential	178				90				268				2,178			2,446			—

Five or more family residential and commercial properties	—				220				220				3,340			3,560			—

Total real estate construction and land development	178				310				488				5,518			6,006			—

Consumer	263				727				990				7,981			8,971			—

Gross covered loans receivable	$	5,173			$	5,336			$	10,509			$	115,691		$	126,200		$	—

(1) Excludes covered PCI loans.

(e) Impaired Loans
A covered loan, not initially classified as PCI, generally becomes impaired when classified as nonaccrual or when its modification results in a TDR. Impaired covered loans as of March 31, 2015 and December 31, 2014 are set forth in the following tables.


	March 31, 2015
	Recorded				Recorded				Total				Unpaid			Related
	Investment With				Investment With				Recorded				Contractual			Specific
	No Specific				Specific				Investment				Principal			Valuation
	Valuation				Valuation								Balance			Allowance
	Allowance				Allowance
	(In thousands)
Commercial business:
Commercial and industrial	$	2,180			$	—			$	2,180			$	3,577		$	—

Owner-occupied commercial real estate	—				1,419				1,419				1,452			302

Non-owner occupied commercial real estate	—				413				413				438			57

Total commercial business	2,180				1,832				4,012				5,467			359

Real estate construction and land development:
One-to-four family residential	—				174				174				180			48

Total real estate construction and land development	—				174				174				180			48

Consumer	—				6				6				8			2

Total	$	2,180			$	2,012			$	4,192			$	5,655		$	409




	December 31, 2014
	Recorded				Recorded				Total				Unpaid			Related
	Investment With				Investment With				Recorded				Contractual			Specific
	No Specific				Specific				Investment				Principal			Valuation
	Valuation				Valuation								Balance			Allowance
	Allowance				Allowance
	(In thousands)
Commercial business:
Commercial and industrial	$	2,240			$	94			$	2,334			$	3,696		$	9

Owner-occupied commercial real estate	—				1,132				1,132				1,156			295

Non-owner occupied commercial real estate	—				424				424				440			66

Total commercial business	2,240				1,650				3,890				5,292			370

Real estate construction and land development:
One-to-four family residential	—				179				179				182			51

Total real estate construction and land development	—				179				179				182			51

Consumer	—				6				6				8			2

Total	$	2,240			$	1,835			$	4,075			$	5,482		$	423

The average recorded investment of impaired covered loans for the three months ended March 31, 2015 and 2014 are set forth in the following table.


	Three Months Ended March 31,
	2015				2014
	(In thousands)
Commercial business:
Commercial and industrial	$	2,257			$	3,706

Owner-occupied commercial real estate	1,276				214

Non-owner occupied commercial real estate	418				—

Total commercial business	3,951				3,920

One-to-four family residential	—				225

Real estate construction and land development:
One-to-four family residential	177				—

Total real estate construction and land development	177				—

Consumer	6				7

Total	$	4,134			$	4,152

For the three months ended March 31, 2015 and 2014, no interest income was recognized subsequent to a covered loan’s classification as nonaccrual. For the three months ended March 31, 2015 and 2014, the Bank recorded $3,000 and $48,000, respectively, of interest income related to performing TDR covered loans.

(f) Troubled Debt Restructured Loans
The recorded investment balance and related allowance for loan losses of performing and nonaccrual covered TDRs as of March 31, 2015 and December 31, 2014 were as follows:


	March 31, 2015								December 31, 2014
	Performing				Nonaccrual				Performing				Nonaccrual
	TDRs				TDRs				TDRs				TDRs
	(In thousands)
TDR covered loans	$	10,419			$	2,186			$	10,289			$	2,246

Allowance for loan losses on TDR covered loans	28				2				1				2

There were no unfunded commitments related to credits classified as covered TDRs at March 31, 2015 and December 31, 2014.
Covered loans that were modified as TDRs during the three months ended March 31, 2015 and 2014 are set forth in the following table:


	Three Months Ended March 31,
	2015							2014
	Number of			Outstanding				Number of			Outstanding
	Contracts			Principal Balance				Contracts			Principal Balance
	-1			(1)(2)				-1			(1)(2)
	(Dollars in thousands)
Commercial business:
Commercial and industrial	1			$	126			1			$	3,626

Owner-occupied commercial real estate	1			308				—			—

Total commercial business	2			434				1			3,626

Consumer	1			105				—			—

Total TDR covered loans	3			$	539			1			$	3,626


-1	Number of contracts and outstanding principal balance represent loans which have balances as of period end as certain loans may have been paid-down or charged-off during the three months ended March 31, 2015 and 2014.

-2	Includes subsequent payments after modifications and reflects the balance as of period end. As the Bank did not forgive any principal or interest balance as part of the loan modification, the Bank’s recorded investment in each loan at the date of modification (pre-modification) did not change as a result of the modification (post-modification).
All covered loan modified as a TDRs during the three months ended March 31, 2015 and 2014 included in the table above were extensions of credits to borrowers with financial difficulties. At March 31, 2015, the loans modified during the three months ended March 31, 2015 had a specific valuation allowance of $28,000.
There was one commercial and industrial loan of $2.2 million at March 31, 2015 that was modified during the previous twelve months and subsequently defaulted during the three months ended March 31, 2015 as the borrower did not make specific curtailment payments. The defaulted loan had been written down to net realizable value at December 31, 2014 and no specific allowance for loan losses was recorded as of March 31, 2015. There were no covered loans modified during the previous twelve months ended March 31, 2014 that subsequently defaulted during the three months ended March 31, 2014.

(g) Purchased Credit Impaired Loans
The Company acquired covered loans which the Bank accounts for under FASB ASC 310-30 as they were identified as PCI loans at the time of acquisition.
The following table reflects the outstanding principal balance and recorded investment at March 31, 2015 and December 31, 2014 of the PCI covered loans:


	March 31, 2015								31-Dec-14
	Outstanding Principal				Recorded Investment				Outstanding Principal				Recorded Investment
	(In thousands)
Commercial business:
Commercial and industrial	$	10,239			$	7,891			$	9,635			$	7,134

Owner-occupied commercial real estate	19,782				17,946				23,071				20,666

Non-owner occupied commercial real estate	17,403				17,878				20,607				20,257

Total commercial business	47,424				43,715				53,313				48,057

One-to-four family residential	3,626				3,287				3,837				3,478

Real estate construction and land development:
One-to-four family residential	101				1,215				103				1,308

Five or more family residential and commercial properties	1,915				1,617				2,140				1,802

Total real estate construction and land development	2,016				2,832				2,243				3,110

Consumer	2,796				2,584				2,945				2,717

Gross PCI covered loans	$	55,862			$	52,418			$	62,338			$	57,362

The Bank has the option to modify PCI covered loans; however, modifying the loan may terminate the FDIC shared-loss coverage on those loans. At March 31, 2015 and December 31, 2014, the recorded investment balance of PCI covered loans which are no longer covered under the FDIC shared-loss agreements was $461,000 and $476,000, respectively. The Bank continues to report these loans in the covered portfolio as they are in a pool and they continue to be accounted for under FASB ASC 310-30. The FDIC indemnification asset has been adjusted to reflect the change in the loan status.

(h) Accretable Yield
The following table summarizes the accretable yield on the PCI covered loans resulting from the Cowlitz acquisition and Washington Banking Merger for the three months ended March 31, 2015 and 2014.


		Three Months Ended March 31,
		2015				2014
	(In thousands)
Balance at the beginning of the period		$	8,520			$	9,535

Accretion		(898		)		(685		)
Disposal and other		(354		)		(43		)
Change in accretable yield		1,042				256

Balance at the end of the period		$	8,310			$	9,063

Allowance_for_Loan_Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses
	The allowance for loan losses is maintained at a level deemed appropriate by management to provide for probable incurred credit losses in the loan portfolio.
	A summary of the changes in the noncovered loans’ allowance for loan losses during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Balance at the beginning of the period	$	22,153			$	22,657

	Charge-offs	(1,435		)		(63		)
	Recoveries of loans previously charged-off	314				247

	Provision for loan losses	1,285				(21		)

	Balance at the end of the period	$	22,317			$	22,820

	A summary of the changes in the covered loans’ allowance for loan losses during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Balance at the beginning of the period	$	5,576			$	6,167

	Charge-offs	—				(79		)

	Provision for loan losses	(77		)		479

	Balance at the end of the period	$	5,499			$	6,567

	The covered loans acquired in the Cowlitz acquisition and Washington Banking Merger (including Washington Banking's prior acquisitions of City Bank and North County Bank and related covered loans) are subject to the Company’s internal credit review. If and when credit deterioration occurs subsequent to the acquisition dates, a provision for loan losses will be charged to earnings for the full amount of the covered loan balance without regard to the FDIC shared-loss agreements. The portion of the estimated loss reimbursable from the FDIC is recorded in noninterest income and increases the FDIC indemnification asset.
	The following tables detail activity in the allowance for loan losses disaggregated on the basis of the Company’s impairment method as of and for the three months ended March 31, 2015:


		Balance at Beginning of Period				Charge-offs				Recoveries			Provision for Loan Losses				Balance at End of Period
		(In thousands)
	Three Months Ended March 31, 2015
	Commercial business:
	Commercial and industrial	$	10,553			$	(660	)		$	201		$	(236	)		$	9,858

	Owner-occupied commercial real estate	4,095				—				—			78				4,173

	Non-owner occupied commercial real estate	5,538				(188		)		—			679				6,029

	Total commercial business	20,186				(848		)		201			521				20,060

	One-to-four family residential	1,200				—				1			41				1,242

	Real estate construction and land development:
	One-to-four family residential	1,786				(106		)		—			(115		)		1,565

	Five or more family residential and commercial properties	972				—				—			33				1,005

	Total real estate construction and land development	2,758				(106		)		—			(82		)		2,570

	Consumer	2,769				(481		)		112			775				3,175

	Unallocated	816				—				—			(47		)		769

	Total	$	27,729			$	(1,435	)		$	314		$	1,208			$	27,816



	Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI		31-Mar-15
																			covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	797			$	6,278			$	—		$	116			$	2,211		$	456	$	9,858

Owner-occupied commercial real estate	629				1,756				302			14				330			1,142		4,173

Non-owner occupied commercial real estate	783				2,772				57			6				363			2,048		6,029

Total commercial business	2,209				10,806				359			136				2,904			3,646		20,060

One-to-four family residential	75				580				—			8				207			372		1,242

Real estate construction and land development:
One-to-four family residential	152				362				48			—				264			739		1,565

Five or more family residential and commercial properties	204				713				—			—				88			—		1,005

Total real estate construction and land development	356				1,075				48			—				352			739		2,570

Consumer	22				2,233				2			4				729			185		3,175

Unallocated	—				769				—			—				—			—		769

Total	$	2,662			$	15,463			$	409		$	148			$	4,192		$	4,942	$	27,816

The following table details the recorded investment balance of the loan receivables disaggregated on the basis of the Company’s impairment method as of March 31, 2015:


	Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI		31-Mar-15
																			covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	8,328			$	533,873			$	2,180		$	9,318			$	17,162		$	7,891	$	578,752

Owner-occupied commercial real estate	2,339				541,411				1,419			36,024				14,448			17,946		613,587

Non-owner occupied commercial real estate	7,101				613,483				413			4,988				11,043			17,878		654,906

Total commercial business	17,768				1,688,767				4,012			50,330				42,653			43,715		1,847,245

One-to-four family residential	244				61,471				—			2,488				2,229			3,287		69,719

Real estate construction and land development:
One-to-four family residential	3,583				35,594				174			949				3,816			1,215		45,331

Five or more family residential and commercial properties	2,032				53,374				—			1,535				2,492			1,617		61,050

Total real estate construction and land development	5,615				88,968				174			2,484				6,308			2,832		106,381

Consumer	125				250,172				6			5,709				6,680			2,584		265,276

Total	$	23,752			$	2,089,378			$	4,192		$	61,011			$	57,870		$	52,418	$	2,288,621



The following tables detail activity in the allowance for loan losses disaggregated on the basis of the Company’s impairment method for the three months ended March 31, 2014 and as of December 31, 2014.


	Balance at Beginning of Period				Charge-offs				Recoveries			Provision for Loan Losses				Balance at End of Period
	(In thousands)
Three Months Ended March 31, 2014
Commercial business:
Commercial and industrial	$	13,478			$	(79	)		$	232		$	(1,354	)		$	12,277

Owner-occupied commercial real estate	4,049				—				—			414				4,463

Non-owner occupied commercial real estate	5,326				—				—			(100		)		5,226

Total commercial business	22,853				(79		)		232			(1,040		)		21,966

One-to-four family residential	1,100				—				—			21				1,121

Real estate construction and land development:
One-to-four family residential	1,720				—				—			259				1,979

Five or more family residential and commercial properties	953				—				—			1,030				1,983

Total real estate construction and land development	2,673				—				—			1,289				3,962

Consumer	1,597				(63		)		15			141				1,690

Unallocated	601				—				—			47				648

Total	$	28,824			$	(142	)		$	247		$	458			$	29,387



	Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI		31-Dec-14
																			covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	1,325			$	6,449			$	9		$	108			$	2,191		$	471	$	10,553

Owner-occupied commercial real estate	684				1,629				295			14				330			1,143		4,095

Non-owner occupied commercial real estate	465				2,541				66			6				353			2,107		5,538

Total commercial business	2,474				10,619				370			128				2,874			3,721		20,186

One-to-four family residential	75				530				—			8				207			380		1,200

Real estate construction and land development:
One-to-four family residential	396				322				51			—				264			753		1,786

Five or more family residential and commercial properties	234				650				—			—				88			—		972

Total real estate construction and land development	630				972				51			—				352			753		2,758

Consumer	56				1,931				2			12				617			151		2,769

Unallocated	—				816				—			—				—			—		816

Total	$	3,235			$	14,868			$	423		$	148			$	4,050		$	5,005	$	27,729

The following table details the recorded investment balance of the loan receivables disaggregated on the basis of the Company’s impairment method for the year ended December 31, 2014:


	Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI		31-Dec-14
																			covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	9,040			$	524,263			$	2,334		$	9,642			$	18,040		$	7,134	$	570,453

Owner-occupied commercial real estate	2,781				516,753				1,132			37,446				16,208			20,666		594,986

Non-owner occupied commercial real estate	7,305				598,267				424			6,198				11,185			20,257		643,636

Total commercial business	19,126				1,639,283				3,890			53,286				45,433			48,057		1,809,075

One-to-four family residential	245				61,060				—			2,512				2,235			3,478		69,530

Real estate construction and land development:
One-to-four family residential	4,524				38,002				179			959				4,223			1,308		49,195

Five or more family residential and commercial properties	2,056				56,341				—			1,758				2,963			1,802		64,920

Total real estate construction and land development	6,580				94,343				179			2,717				7,186			3,110		114,115

Consumer	205				243,063				6			6,248				7,055			2,717		259,294

Total	$	26,156			$	2,037,749			$	4,075		$	64,763			$	61,909		$	57,362	$	2,252,014

FDIC_Indemnification_Asset

FDIC Indemnification Asset	3 Months Ended
	Mar. 31, 2015
FDIC Indemnification Asset [Roll Forward]
FDIC Indemnification Asset	FDIC Indemnification Asset
	Changes in the FDIC indemnification asset during the three months ended March 31, 2015 and 2014 were as follows:


		Three Months Ended March 31,
		2015			2014
		(In thousands)
	Balance at the beginning of the period	$	1,116		$	4,382

	Cash payments received or receivable from the FDIC	(231		)	(376		)
	FDIC share of additional estimated (gains) losses	(69		)	336

	Net amortization	(124		)	(373		)
	Balance at the end of the period	$	692		$	3,969

Other_Real_Estate_Owned

Other Real Estate Owned	3 Months Ended
	Mar. 31, 2015
Real Estate [Abstract]
Other Real Estate Owned	Other Real Estate Owned
	Changes in other real estate owned during the three months ended March 31, 2015 and 2014 were as follows:


		Three Months Ended March 31,
		2015			2014
		(In thousands)
	Balance at the beginning of the period	$	3,355		$	4,559

	Additions	1,728			218

	Proceeds from dispositions	(589		)	(520		)
	(Loss) gain on sales, net	(70		)	27

	Valuation adjustment	(330		)	—

	Balance at the end of the period	$	4,094		$	4,284


	At March 31, 2015 and December 31, 2014, the balance of other real estate owned that was covered by shared-loss agreements was $2.8 million and $1.2 million, respectively.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	(a) Goodwill
	The Company’s goodwill represents the excess of the purchase price over the fair value of net assets acquired in the Washington Banking Merger on May 1, 2014, and the acquisitions of Valley on July 15, 2013, Western Washington Bancorp in 2006 and North Pacific Bank in 1998. The Company’s goodwill is assigned to the Bank and is evaluated for impairment at the Bank level (reporting unit).
	There were no additions to goodwill during the three months ended March 31, 2015 and 2014.
	At March 31, 2015, the Company’s step-one analysis concluded that the reporting unit’s fair value was greater than its carrying value and therefore no goodwill impairment charges were required for the three months ended March 31, 2015. The Company did not record any goodwill impairment charges for the three months ended March 31, 2014. Even though there was no goodwill impairment at March 31, 2015, adverse events may impact the recoverability of goodwill and could result in a future impairment charge which could have a material impact on the Company’s operating results.
	b) Other Intangible Assets
	The other intangible assets represent the core deposit intangible ("CDI") acquired in business combinations. The useful life of the CDI related to the Washington Banking Merger, the acquisitions of Valley, NCB, Pierce, Cowlitz, and Western Washington Bancorp were estimated to be ten, ten, five, four, nine and eight years, respectively.
	The following table presents the change in the other intangible assets for the periods indicated:


		Three Months Ended March 31,
		2015		2014
		(In thousands)
	Balance at the beginning of the period	$	10,889	$	1,615

	Less: Amortization	527		156

	Balance at the end of the period	$	10,362	$	1,459

Junior_Subordinated_Debentures

Junior Subordinated Debentures	3 Months Ended
Junior Subordinated Debentures	Mar. 31, 2015
Debt Disclosure [Abstract]
Junior Subordinated Debentures	Junior Subordinated Debentures
	As part of the Washington Banking Merger on May 1, 2014, the Company acquired the Washington Banking Master Trust, a statutory business trust ("Master Trust"), which retained its name following the completion of the Washington Banking Merger. The Master Trust was a wholly-owned subsidiary of Washington Banking Company created for the exclusive purposes of issuing and selling capital securities and utilizing sale proceeds to acquire junior subordinated debt issued by Washington Banking Company. During 2007, the Master Trust issued $25.0 million of trust preferred securities with a 30-year maturity, callable after the fifth year by Washington Banking Company (now callable by Heritage). The trust preferred securities have a quarterly adjustable rate based upon the three-month London Interbank Offered Rate (“LIBOR”) plus 1.56%. The junior subordinated debentures are the sole assets of the Master Trust, and payments under the junior subordinated debentures are the sole revenues of the Trust. All of the common securities of the Master Trust are owned by the Company. Heritage has fully and unconditionally guaranteed the capital securities along with all obligations of the Master Trust under the trust agreements.
	The adjustable rate of the securities at March 31, 2015 was 1.82%. The weighted average rate of the junior subordinated debentures was 5.06% for the three months ended March 31, 2015 and included the accretion of the discount established at the merger date with Washington Banking Company which is amortized over the life of the trust preferred securities.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity
	(a) Earnings Per Common Share
	The following table illustrates the reconciliation of weighted average shares used for earnings per common share computations for the three months ended March 31, 2015 and 2014:


		Three Months Ended March 31,
		2015				2014
		(Dollars in thousands)
	Net income:
	Net income	$	9,779			$	2,543

	Less: Dividends and undistributed earnings allocated to participating securities	(95		)		(28		)
	Net income allocated to common shareholders	$	9,684			$	2,515

	Basic:
	Weighted average common shares outstanding	30,290,200				16,214,735

	Less: Restricted stock awards	(261,264		)		(197,697		)
	Total basic weighted average common shares outstanding	30,028,936				16,017,038

	Diluted:
	Basic weighted average common shares outstanding	30,028,936				16,017,038

	Incremental shares from stock options	22,946				9,764

	Total diluted weighted average common shares outstanding	30,051,882				16,026,802

	Potential dilutive shares are excluded from the computation of earnings per share if their effect is anti-dilutive. For the three months ended March 31, 2015 and 2014, anti-dilutive shares outstanding related to options to acquire common stock totaled 7,037 and 131,459, respectively, as the assumed proceeds from exercise price, tax benefits and future compensation was in excess of the market value.
	(b) Dividends
	The timing and amount of cash dividends paid on the Company's common stock depends on the Company’s earnings, capital requirements, financial condition and other relevant factors. Dividends on common stock from the Company depend substantially upon receipt of dividends from the Bank, which is the Company’s predominant source of income. The following table summarizes the dividend activity for the three months ended March 31, 2015 and calendar year 2014.


	Declared		Cash Dividend per Share		Record Date		Paid Date
	29-Jan-14		$0.08		February 10, 2014		February 24, 2014
	27-Mar-14		$0.08		April 8, 2014		April 23, 2014
	July 24, 2014		$0.09		August 7, 2014		August 21, 2014
	October 23, 2014		$0.09		November 6, 2014		November 20, 2014
	November 11, 2014		$0.16		December 2, 2014		December 12, 2014
	January 28, 2015		$0.10		February 10, 2015		February 24, 2015
	The FDIC and the Washington State Department of Financial Institutions, Division of Banks have the authority under their supervisory powers to prohibit the payment of dividends by the Bank to the Company. Additionally, current guidance from the Board of Governors of the Federal Reserve System ("Federal Reserve Board") provides, among other things, that dividends per share on the Company’s common stock generally should not exceed earnings per share, measured over the previous four fiscal quarters. Current regulations allow the Company and the Bank to pay dividends on their common stock if the Company’s or the Bank’s regulatory capital would not be reduced below the statutory capital requirements set by the Federal Reserve Board and the FDIC.
	(c) Stock Repurchase Program
	The Company has had various stock repurchase programs since March 1999. On October 23, 2014, the Company's Board of Directors authorized the repurchase of up to 5% of the Company's outstanding common shares, or approximately 1,513,000 shares, under the eleventh stock repurchase plan. The number, timing and price of shares repurchased will depend on business and market conditions, and other factors, including opportunities to deploy the Company's capital. On August 30, 2012, the Board of Directors approved the Company’s tenth stock repurchase plan, authorizing the repurchase of up to 5% of the Company’s outstanding shares of common stock, or approximately 757,000 shares. As the eleventh plan superseded the tenth stock repurchase program, the Company did not repurchase the total number of shares available under the tenth plan.

	The following table provides total repurchased shares and average share prices under the applicable plans for the periods indicated:


		Three Months Ended March 31,
		2015				2014			Plan Total (1)
	Tenth Plan
	Repurchased shares	—				—			704,975

	Stock repurchase average share price	$	—			$	—		$	15.85


	Eleventh Plan
	Repurchased shares	137,366				—			137,366

	Stock repurchase average share price	$	16.1			$	—		$	16.1

	(1) Represents shares repurchased and average share price paid during the duration of the plan.
	During the three months ended March 31, 2015 and 2014, the Company also repurchased 9,923 and 9,298 shares at an average price of $16.31 and $17.77, respectively, to pay withholding taxes on the vesting of restricted stock that vested during the three months ended March 31, 2015 and 2014, respectively.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income (Loss)
	The changes in accumulated other comprehensive income (loss) (“AOCI”) by component, during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31, 2015
		Changes in			Accretion of other-than-			Total
		fair value of			temporary
		available for sale securities (1)			impairment on held to maturity
					securities (1)
		(In thousands)
	Balance of AOCI at the beginning of period	$	3,567		$	(189	)	$	3,378

	Other comprehensive income before reclassification	3,152			8			3,160

	Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	(354		)	—			(354		)

	Net current period other comprehensive income	2,798			8			2,806

	Balance of AOCI at the end of period	$	6,365		$	(181	)	$	6,184


	(1)	All amounts are net of tax.


		Three Months Ended March 31, 2014
		Changes in			Accretion of other-than-			Total
		fair value of			temporary
		available for sale securities (1)			impairment on held to maturity
					securities (1)
		(In thousands)
	Balance of AOCI at the beginning of the period	$	(923	)	$	(239	)	$	(1,162	)
	Other comprehensive income before reclassification	593			15			608

	Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	(117		)	—			(117		)

	Net current period other comprehensive income	476			15			491

	Balance of AOCI at the end of the period	$	(447	)	$	(224	)	$	(671	)

	(1)	All amounts are net of tax.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2015
Share-based Compensation [Abstract]
Stock-Based Compensation	Stock-Based Compensation
	Stock options generally vest ratably over three years and expire five years after they become exercisable or vest ratably over four years and expire ten years from date of grant. Restricted stock awards issued generally have a five-year cliff vesting or four year ratable vesting schedule. The Company issues new shares of common stock to satisfy share option exercises and restricted stock awards.

	On July 24, 2014, the Company's shareholders approved the Heritage Financial Corporation 2014 Omnibus Equity Plan (the "Plan") under which 1,500,000 shares of the Company's common stock may be issued in the form of nonqualified stock option awards, restricted stock awards and restricted stock unit awards.
	As of March 31, 2015, 1,292,810 shares remain available for future issuances under the Company's stock-based compensation plans.
	(a) Stock Option Awards
	For the three months ended March 31, 2015, the Company did not recognize compensation expense or the related tax benefit for the outstanding stock options as all compensation expense had been previously recognized. For the three months ended March 31, 2014, the Company recognized compensation expense related to stock options of $15,000, with no related tax benefit for the period. The intrinsic value and cash proceeds from options exercised during the three months ended March 31, 2015 was $163,000 and $446,000, respectively. The intrinsic value and cash proceeds from options exercised during the three months ended March 31, 2014 was $22,000 and $57,000, respectively.
	The following tables summarize the stock option activity for the three months ended March 31, 2015 and 2014:


		Shares			Weighted-Average Exercise Price		Weighted-Average	Aggregate
							Remaining	Intrinsic
							Contractual	Value (In
							Term (In years)	thousands)
	Outstanding at December 31, 2013	194,482			$	15.82

	Granted	—			—

	Exercised	(4,492	)		12.7

	Forfeited or expired	(6,055	)		19.76

	Outstanding at March 31, 2014	183,935			$	15.77	3.22	$	503


	Outstanding at December 31, 2014	156,407			$	13.59

	Granted	—			—

	Exercised	(37,437	)		11.91

	Forfeited or expired	(7,441	)		15.08

	Outstanding at March 31, 2015	111,529			$	14.06	3.17	$	353

	Vested and expected to vest at March 31, 2015	111,529			$	14.06	3.17	$	353

	Exercisable at March 31, 2015	111,529			$	14.06	3.17	$	353


	(b) Restricted and Unrestricted Stock Awards
	For the three months ended March 31, 2015 and 2014, the Company recognized compensation expense related to restricted and unrestricted stock awards of $348,000 and $276,000, respectively, and a related tax benefit of $122,000 and $97,000, respectively. As of March 31, 2015, the total unrecognized compensation expense related to non-vested restricted and unrestricted stock awards was $3.5 million and the related weighted average period over which it is expected to be recognized is approximately 2.8 years. The vesting date fair value of restricted stock awards that vested during the three months ended March 31, 2015 and 2014 was $533,000 and $536,000, respectively.
	The following tables summarize the restricted and unrestricted stock award activity for the three months ended March 31, 2015 and 2014:


		Shares			Weighted-Average Grant Date Fair Value
	Nonvested at December 31, 2013	202,939			$	14.29

	Granted	6,407			17.17

	Vested	(30,176	)		14.55

	Forfeited	(811	)		14.67

	Nonvested at March 31, 2014	178,359			$	14.35


	Nonvested at December 31, 2014	238,669			$	15.2

	Granted	90,627			16.28

	Vested	(32,699	)		14.66

	Forfeited	(2,022	)		15.63

Nonvested at March 31, 2015	294,575			$	15.59

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements
	Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:
	Level 1: Valuations for assets and liabilities traded in active exchange markets, or interest in open-end mutual funds that allow the Company to sell its ownership interest back to the fund at net asset value on a daily basis. Valuations are obtained from readily available pricing sources for market transactions involving identical assets, liabilities, or funds.
	Level 2: Valuations for assets and liabilities traded in less active dealer, or broker markets, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or valuations using methodologies with observable inputs.
	Level 3: Valuations for assets and liabilities that are derived from other valuation methodologies, such as option pricing models, discounted cash flow models and similar techniques using unobservable inputs, and not based on market exchange, dealer, or broker traded transactions. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities.
	(a) Recurring and Nonrecurring Basis
	The Company used the following methods and significant assumptions to estimate fair value of certain assets on a recurring and nonrecurring basis:
	Investment Securities Available for Sale and Held to Maturity:
	The fair values of all investment securities are based upon the assumptions market participants would use in pricing the security. If available, investment securities are determined by quoted market prices which is generally the case for mutual funds and other equities (Level 1). For investment securities where quoted market prices are not available, fair values are calculated based on market prices on similar securities (Level 2). Level 2 includes U.S. Treasury, U.S. Government and agency debt securities, municipal securities, corporate securities and mortgage-backed securities and collateralized mortgage obligations-residential. For investment securities where quoted prices or market prices of similar securities are not available, fair values are calculated by using observable and unobservable inputs such as discounted cash flows or other market indicators (Level 3). Security valuations are obtained from third party pricing services for comparable assets or liabilities.
	Impaired Loans:
	At the time a loan is considered impaired, its impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, a loan’s observable market prices, or fair market value of the collateral if the loan is collateral-dependent. Impaired loans for which impairment is measured using the discounted cash flow approach are not considered to be measured at fair value because the loan’s effective interest rate is not a fair value input, and for the purposes of fair value disclosures, the fair value of these loans are measured commensurate with non-impaired loans. Generally, the Company utilizes the fair market value of the collateral, which is commonly based on recent real estate appraisals, to measure impairment. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in a Level 3 classification of the inputs for determining fair value. Non-real estate collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business (Level 3). Impaired loans are evaluated on a quarterly basis for additional impairment and adjusted accordingly.
	Other Real Estate Owned:
	Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Such adjustments are usually significant and typically result in Level 3 classification of the inputs for determining fair value.
	Appraisals for both collateral-dependent impaired loans and other real estate owned are performed by certified general appraisers for commercial properties or certified residential appraisers for residential properties whose qualifications and licenses have been reviewed and verified by the Company. Once received, the Company reviews the assumptions and approaches utilized in the appraisal as well as the resulting fair value in comparison with independent data sources such as recent market data or industry-wide statistics. On a quarterly basis, the Company compares the actual selling price of collateral that has been liquidated to the most recent appraised value to determine what additional adjustment should be made to the appraisal value to arrive at fair value.
	The following tables summarize the balances of assets measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014.


		March 31, 2015
		Total			Level 1			Level 2			Level 3
		(In thousands)
	Investment securities available for sale:
	U.S. Treasury and U.S. Government-sponsored agencies	$	22,519		$	—		$	22,519		$	—

	Municipal securities	185,831			—			185,831			—

	Mortgage backed securities and collateralized mortgage obligations—residential:
	U.S Government-sponsored agencies	530,706			—			530,706			—

	Corporate obligations	6,259			—			6,259			—

	Mutual funds and other equities	1,984			1,984			—			—

	Total	$	747,299		$	1,984		$	745,315		$	—



		December 31, 2014
		Total			Level 1			Level 2			Level 3
		(In thousands)
	Investment securities available for sale:
	U.S. Treasury and U.S. Government-sponsored agencies	$	21,427		$	—		$	21,427		$	—

	Municipal securities	173,037			—			173,037			—

	Mortgage backed securities and collateralized mortgage obligations—residential:
	U.S Government-sponsored agencies	542,399			—			542,399			—

	Corporate obligations	4,010			—			4,010			—

	Mutual funds and other equities	1,973			1,973			—			—

	Total	$	742,846		$	1,973		$	740,873		$	—

	There were no transfers between Level 1 and Level 2 during the three months ended March 31, 2015 and 2014.
	The Company may be required to measure certain financial assets and liabilities at fair value on a nonrecurring basis. These adjustments to fair value usually result from application of lower-of-cost-or-market accounting or write-downs of individual assets.
	The tables below represent assets measured at fair value on a nonrecurring basis at March 31, 2015 and December 31, 2014 and the net losses (gains) recorded in earnings during three months ended March 31, 2015 and 2014.


		Basis(1)			Fair Value at March 31, 2015
					Total			Level 1			Level 2			Level 3		Net Losses
																Recorded in
																Earnings
																During
																the Three Months Ended March 31, 2015
	(In thousands)
Impaired noncovered loans:
Commercial business:
Commercial and industrial	$	84		$	81		$	—		$	—		$	81	$	—

Total commercial business	84			81			—			—			81		—

Total	84			81			—			—			81		—

Other real estate owned:	$	1,057		$	727		$	—		$	—		$	727	$	330

Total assets measured	$	1,141		$	808		$	—		$	—		$	808	$	330


(1)	Basis represents the unpaid principal balance of impaired noncovered loans and carrying value at ownership date of other real estate owned.



	Basis(1)			Fair Value at December 31, 2014
				Total			Level 1			Level 2			Level 3		Net Losses
															(Gains)
															Recorded in
															Earnings
															During
															the Three Months Ended March 31, 2014
	(In thousands)
Impaired noncovered loans:
Commercial business:
Commercial and industrial	$	161		$	138		$	—		$	—		$	138	$	369

Owner-occupied commercial real estate	—			—			—			—			—		(62		)

Non-owner occupied commercial real estate	—			—			—			—			—		(27		)

Total commercial business	161			138			—			—			138		280

Real estate construction and land development:
One-to-four family residential	2,094			1,725			—			—			1,725		338

Total real estate construction and land development	2,094			1,725			—			—			1,725		338

Consumer	49			45			—			—			45		24

Total	2,304			1,908			—			—			1,908		642

Covered impaired loans:
Total	—			—			—			—			—		42

Investment securities held to maturity:
Mortgage back securities and collateralized mortgage obligations – residential:
Private residential collateralized mortgage obligations	36			11			—			11			—		8

Total assets measured	$	2,340		$	1,919		$	—		$	11		$	1,908	$	692


(1)	Basis represents the unpaid principal balance of impaired noncovered and impaired covered loans and amortized cost of investment securities held to maturity.
The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2015 and December 31, 2014.


	March 31, 2015
	Fair			Valuation		Unobservable Input(s)	Range of Inputs; Weighted
	Value			Technique(s)			Average
	(Dollars in thousands)
Impaired noncovered loans	$	81		Market approach		Adjustment for differences between the comparable sales	(50.0%) - 0.0%; (25.0%)

Other real estate owned	$	727		Market approach		Adjustment for differences between the comparable sales	(6.0%) - 3.0%; (5.0%)



	December 31, 2014
	Fair			Valuation		Unobservable Input(s)	Range of Inputs; Weighted
	Value			Technique(s)			Average
	(Dollars in thousands)
Impaired noncovered loans	$	1,908		Market approach		Adjustment for differences between the comparable sales	(47.5%) - 96.2%; 7.0%


(b) Fair Value of Financial Instruments
Because broadly traded markets do not exist for most of the Company’s financial instruments, the fair value calculations attempt to incorporate the effect of current market conditions at a specific time. These determinations are subjective in nature, involve uncertainties and matters of significant judgment and do not include tax ramifications; therefore, the results cannot be determined with precision, substantiated by comparison to independent markets and may not be realized in an actual sale or immediate settlement of the instruments. There may be inherent weaknesses in any calculation technique, and changes in the underlying assumptions used, including discount rates and estimates of future cash flows, could significantly affect the results. For all of these reasons, the aggregation of the fair value calculations presented herein do not represent, and should not be construed to represent, the underlying value of the Company.
The tables below present the carrying value amount of the Company’s financial instruments and their corresponding estimated fair values at the dates indicated.


	March 31, 2015
	Carrying Value			Fair Value			Fair Value Measurements Using:

							Level 1			Level 2			Level 3

	(In thousands)
Financial Assets:
Cash and cash equivalents	$	80,064		$	80,064		$	80,064		$	—		$	—

Other interest earning deposits	9,364			9,396			—			9,396			—

Investment securities available for sale	747,299			747,299			1,984			745,315			—

Investment securities held to maturity	35,425			36,633			—			36,633			—

Federal Home Loan Bank stock	12,022			N/A			N/A			N/A			N/A

Loans held for sale	8,742			8,966			—			8,966			—

Loans receivable, net of allowance for loan losses	2,260,498			2,325,462			—			—			2,325,462

Accrued interest receivable	10,132			10,132			3			3,465			6,664

Financial Liabilities:
Deposits:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	$	2,422,213		$	2,422,213		$	2,422,213		$	—		$	—

Certificate of deposit accounts	490,245			483,408			—			483,408			—

Total deposits	$	2,912,458		$	2,905,621		$	2,422,213		$	483,408		$	—

Federal Home Loan Bank advances	$	7,420		$	7,420		$	7,420		$	—		$	—

Securities sold under agreement to repurchase	23,177			23,177			23,177			—			—

Junior subordinated debentures	19,205			19,205			—			—			19,205

Accrued interest payable	266			266			58			188			20



	December 31, 2014
	Carrying Value			Fair Value			Fair Value Measurements Using:
							Level 1			Level 2			Level 3
	(In thousands)
Financial Assets:
Cash and cash equivalents	$	121,636		$	121,636		$	121,636		$	—		$	—

Other interest earning deposits	10,126			10,145			—			10,145			—

Investment securities available for sale	742,846			742,846			1,973			740,873			—

Investment securities held to maturity	35,814			36,874			—			36,874			—

Federal Home Loan Bank stock	12,188			N/A			N/A			N/A			N/A

Loans held for sale	5,582			5,710			—			5,710			—

Loans receivable, net of allowance for loan losses	2,223,348			2,279,081			—			—			2,279,081

Accrued interest receivable	9,836			9,836			3			3,009			6,824

Financial Liabilities:
Deposits:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	$	2,380,934		$	2,380,934		$	2,380,934		$	—		$	—

Certificate of deposit accounts	525,397			525,768			—			525,768			—

Total deposits	$	2,906,331		$	2,906,702		$	2,380,934		$	525,768		$	—

Securities sold under agreement to repurchase	$	32,181		$	32,181		$	32,181		$	—		$	—

Junior subordinated debentures	19,082			19,082			—			—			19,082

Accrued interest payable	411			411			62			328			21

The methods and assumptions, not previously presented, used to estimate fair value are described as follows:
Cash and Cash Equivalents:
The fair value of financial instruments that are short-term or reprice frequently and that have little or no risk are considered to have a fair value equal to carrying value (Level 1).
Other Interest Earning Deposits:
These deposits with other banks have maturities greater than three months. The fair value is calculated based upon market prices for similar deposits (Level 2).
Federal Home Loan Bank Stock:
Federal Home Loan Bank of Seattle stock is not publicly traded, as such, it is not practicable to determine the fair value of Federal Home Loan Bank stock due to restrictions placed on its transferability.
Loans Held for Sale:
The fair value of loans held for sale is estimated based upon binding contracts or quotes from third party investors. (Level 2).
Loans Receivable:
Except for impaired loans discussed previously, fair value is based on discounted cash flows using current market rates applied to the estimated life (Level 3). While these methodologies are permitted under U.S. GAAP, they are not based on the exit price concept of the fair value required under ASC 820-10, Fair Value Measurements and Disclosures, and generally produce a higher value.
Accrued Interest Receivable/Payable:
The fair value of accrued interest receivable/payable balances are determined using inputs and fair value measurements commensurate with the asset or liability from which the accrued interest is generated. The carrying amounts of accrued interest approximate fair value (Level 1, Level 2 and Level 3).
Deposits:
For deposits with no contractual maturity, the fair value is assumed to equal the carrying value (Level 1). The fair value of fixed maturity deposits is based on discounted cash flows using the difference between the deposit rate and the rates offered by the Company for deposits of similar remaining maturities (Level 2).
Federal Home Loan Bank Advances:
Federal Home Loan Bank advances are used by the Bank in a short-term manner, generally with repayment in one-day. Fair value financial instruments that are short-term in nature and have little risk are considered to have fair value equal to carrying value (Level 1).
Securities Sold Under Agreement to Repurchase:
Securities sold under agreement to repurchase are short-term in nature and they reprice on a daily basis. Fair value financial instruments that are short-term or reprice frequently and that have little or no risk are considered to have a fair value equal to carrying value (Level 1).
Junior Subordinated Debentures:
The fair value is estimated using discounted cash flow analysis based on current rates for similar types of debt, which many be unobservable, and considering recent trading activity of similar instruments in markets which can be inactive. At March 31, 2015, the fair value approximated the carrying value based on these valuation techniques (Level 3).
Off-Balance Sheet Financial Instruments:
The majority of our commitments to extend credit, standby letters of credit and commitments to sell mortgage loans carry current market interest rates if converted to loans. As such, no premium or discount was ascribed to these commitments (Level 1). They are excluded from the preceding tables.

Description_of_Business_Basis_1

Description of Business, Basis of Presentation and Significant Accounting Policies and Recent Issued Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business
	Heritage Financial Corporation ("Heritage" or the “Company”) is a bank holding company that was incorporated in the State of Washington in August 1997. The Company is primarily engaged in the business of planning, directing and coordinating the business activities of its wholly-owned subsidiary, Heritage Bank (the “Bank”). The Bank is a Washington-chartered commercial bank and its deposits are insured by the FDIC under the Deposit Insurance Fund. The Bank is headquartered in Olympia, Washington and conducts business from its sixty-six branch offices located throughout Washington State and the greater Portland, Oregon area. The Bank’s business consists primarily of commercial lending and deposit relationships with small businesses and their owners in its market areas and attracting deposits from the general public. The Bank also makes real estate construction and land development loans and consumer loans and originates first mortgage loans on residential properties primarily located in its market area.
	The Company has expanded its footprint through mergers and acquisitions. The largest of these transactions was the strategic merger with Washington Banking Company (“Washington Banking”) and its wholly owned subsidiary bank, Whidbey Island Bank ("Whidbey"). Effective May 1, 2014, Washington Banking merged with an into Heritage and Whidbey merged with an into Heritage Bank and is referred to herein as the "Washington Banking Merger".
Basis of Presentation	Basis of Presentation
	The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with the accounting principles generally accepted in the United States (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. It is recommended that these unaudited Condensed Consolidated Financial Statements and accompanying Notes be read with the audited Consolidated Financial Statements and the accompanying Notes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 Annual Form 10-K”). In management's opinion, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the year ending December 31, 2015. In preparing the unaudited Condensed Consolidated Financial Statements, management is required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, and expenses. Management believes that the judgments, estimates and assumptions used in the preparation of the financial statements are appropriate based on the facts and circumstances at the time. Actual results, however, could differ from those estimates.
	Certain prior period amounts have been reclassified to conform to the current period’s presentation. Reclassifications had no effect on prior periods' net income or stockholders’ equity.
Significant Accounting Policies	Significant Accounting Policies
	The significant accounting policies used in preparation of the Company's Condensed Consolidated Financial Statements are disclosed in the 2014 Annual Form 10-K. There have not been any material changes in the Company's significant accounting policies from those contained in the 2014 Annual Form 10-K.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements
	Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU" or "Update") 2014-09, Revenue from Contracts with Customers, was issued in May 2014. Under this Update, FASB created a new Topic 606 which is in response to a joint initiative of FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP and international financial reporting standards that would:

	•	Remove inconsistencies and weaknesses in revenue requirements.

	•	Provide a more robust framework for addressing revenue issues.

	•	Improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets.

	•	Provide more useful information to users of financial statements through improved disclosure requirements.

	•	Simplify the preparation of financial statements by reducing the number of requirements to which an entity must refer.
	The Update is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. The Company is currently evaluating the impact that this Update will have on its Condensed Consolidated Financial Statements.
	FASB ASU 2014-11, Transfers and Servicing: Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, was issued in June 2014. This Update aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements, such as secured borrowings. The guidance eliminates sale accounting and supersedes the guidance under which a transfer of a financial asset and a contemporaneous repurchase financing could be accounted for on a combined basis as a forward agreement. The Update requires new and expanded disclosures that are effective for interim or annual reporting periods beginning after December 15, 2014, with certain requirements applicable for periods beginning after March 31, 2015. The adoption of this Update did not have a material impact on the Company's Condensed Consolidated Financial Statements.
Fair Value Measurements	Loans Receivable:
	Except for impaired loans discussed previously, fair value is based on discounted cash flows using current market rates applied to the estimated life (Level 3). While these methodologies are permitted under U.S. GAAP, they are not based on the exit price concept of the fair value required under ASC 820-10, Fair Value Measurements and Disclosures, and generally produce a higher value.

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of securities available for sale	The amortized cost, gross unrealized gains, gross unrealized losses and fair values of investment securities available for sale at the dates indicated were as follows:


		Securities Available for Sale
		31-Mar-15
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	22,377	$	142		$	—		$	22,519

	Municipal securities	182,056		3,931			(156		)	185,831

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	524,832		6,773			(899		)	530,706

	Corporate obligations	6,264		5			(10		)	6,259

	Mutual funds and other equities	1,956		28			—			1,984

	Total	$	737,485	$	10,879		$	(1,065	)	$	747,299



		Securities Available for Sale
		31-Dec-14
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	21,414	$	44		$	(31	)	$	21,427

	Municipal securities	170,082		3,139			(184		)	173,037

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government agencies	539,859		4,015			(1,475		)	542,399

	Corporate obligations	4,034		—			(24		)	4,010

	Mutual funds and other equities	1,956		17			—			1,973

	Total	$	737,345	$	7,215		$	(1,714	)	$	742,846

Schedule of securities held to maturity	The amortized cost, gross unrecognized gains, gross unrecognized losses and fair values of investment securities held to maturity at the dates indicated were as follows:


		Securities Held to Maturity
		31-Mar-15
		Amortized		Gross			Gross			Fair
		Cost		Unrecognized			Unrecognized			Value
				Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	1,586	$	183		$	—		$	1,769

	Municipal securities	22,331		643			(12		)	22,962

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	10,665		449			(48		)	11,066

	Private residential collateralized mortgage obligations	843		80			(87		)	836

	Total	$	35,425	$	1,355		$	(147	)	$	36,633



		Securities Held to Maturity
		31-Dec-14
		Amortized		Gross			Gross			Fair
		Cost		Unrecognized			Unrecognized			Value
				Gains			Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	1,591	$	167		$	—		$	1,758

	Municipal securities	22,486		643			(11		)	23,118

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	10,866		364			(74		)	11,156

	Private residential collateralized mortgage obligations	871		75			(104		)	842

	Total	$	35,814	$	1,249		$	(189	)	$	36,874

Schedule of maturities of investment securities	The amortized cost and fair value of securities at March 31, 2015, by contractual maturity, are set forth below. Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay obligations with or without call or prepayment penalties.


		Securities Available for Sale					Securities Held to Maturity
		Amortized		Fair Value			Amortized			Fair Value
		Cost					Cost
		(In thousands)
	Due in one year or less	$	5,127	$	5,144		$	2,880		$	2,889

	Due after one year through three years	34,103		34,347			4,240			4,280

	Due after three years through five years	33,231		33,647			6,571			6,899

	Due after five years through ten years	159,099		161,551			17,277			18,086

	Due after ten years	503,969		510,626			4,457			4,479

	Investment securities with no stated maturities	1,956		1,984			—			—

	Total	$	737,485	$	747,299		$	35,425		$	36,633

Schedule of fair value and unrealized losses of available for sale investment securities	Available for sale investment securities with unrealized losses as of March 31, 2015 and December 31, 2014 were as follows:


		Securities Available for Sale
		31-Mar-15
		Less than 12 Months					12 Months or					Total
							Longer
		Fair		Unrealized			Fair			Unrealized		Fair		Unrealized
		Value		Losses			Value			Losses		Value		Losses
		(In thousands)
	Municipal securities	$	23,537	$	(156	)	$	—		$	—	$	23,537	$	(156	)

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	110,318		(899		)	—			—		110,318		(899		)

	Corporate obligations	4,023		(10		)	—			—		4,023		(10		)

	Total	$	137,878	$	(1,065	)	$	—		$	—	$	137,878	$	(1,065	)



		Securities Available for Sale
		31-Dec-14
		Less than 12 Months					12 Months or					Total
							Longer
		Fair		Unrealized			Fair			Unrealized		Fair		Unrealized
		Value		Losses			Value			Losses		Value		Losses
		(In thousands)
	U.S. Treasury and U.S. Government-sponsored agencies	$	3,567	$	(31	)	$	—		$	—	$	3,567	$	(31	)

	Municipal securities	25,176		(184		)	—			—		25,176		(184		)

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	182,970		(1,475		)	—			—		182,970		(1,475		)

	Corporate obligations	2,119		(24		)	—			—		2,119		(24		)

	Total	$	213,832	$	(1,714	)	$	—		$	—	$	213,832	$	(1,714	)

Schedule of fair value and unrealized losses of held to maturity investment securities	Held to maturity investment securities with unrecognized losses as of March 31, 2015 and December 31, 2014 were as follows:


		Securities Held to Maturity
		31-Mar-15
		Less than 12					12 Months or					Total
		Months					Longer
		Fair		Unrecognized			Fair			Unrecognized		Fair		Unrecognized
		Value		Losses			Value			Losses		Value		Losses
		(In thousands)
	Municipal securities	$	1,554	$	(12	)	$	—		$	—	$	1,554	$	(12	)

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	2,556		(48		)	—			—		2,556		(48		)

	Private residential collateralized mortgage obligations	554		(87		)	—			—		554		(87		)

	Total	$	4,664	$	(147	)	$	—		$	—	$	4,664	$	(147	)




		Securities Held to Maturity
		31-Dec-14
		Less than 12					12 Months or					Total
		Months					Longer
		Fair		Unrecognized			Fair			Unrecognized		Fair		Unrecognized
		Value		Losses			Value			Losses		Value		Losses
		(In thousands)
	Municipal securities	$	2,196	$	(11	)	$	—		$	—	$	2,196	$	(11	)

	Mortgage backed securities and collateralized mortgage obligations-residential:
	U.S. Government-sponsored agencies	2,553		(74		)	—			—		2,553		(74		)

	Private residential collateralized mortgage obligations	558		(104		)	—			—		558		(104		)

	Total	$	5,307	$	(189	)	$	—		$	—	$	5,307	$	(189	)

Schedule of other-than-temporary impairment losses investment securities	The following table summarizes activity for the three months ended March 31, 2015 and 2014 related to the amount of impairments on held to maturity securities:


		Life-to-Date Gross Other-Than-Temporary Impairments		Life-to-Date Other-Than-Temporary Impairments Included in Other Comprehensive Income			Life-to-Date Net
							Other-Than-Temporary Impairments Included in Earnings
		(In thousands)
	December 31, 2013	$	2,603	$	1,152		$	1,451

	Subsequent impairments	8		—			8

	March 31, 2014	$	2,611	$	1,152		$	1,459


	December 31, 2014	$	2,648	$	1,152		$	1,496

	Subsequent impairments	—		—			—

	March 31, 2015	$	2,648	$	1,152		$	1,496

Scheduled of amortized cost and fair value of securities pledged as collateral	The following table summarizes the amortized cost and fair value of available for sale and held to maturity securities that are pledged as collateral for the following obligations at March 31, 2015 and December 31, 2014:


		March 31, 2015					December 31, 2014
		Amortized		Fair			Amortized			Fair
		Cost		Value			Cost			Value
		(In thousands)
	Washington and Oregon state to secure public deposits	$	159,797	$	163,456		$	150,507		$	153,785

	Federal Reserve Bank of San Francisco and FHLB to secure borrowing arrangements	516		517			4,430			4,460

	Repurchase agreements	41,729		42,723			43,676			44,457

	Other securities pledged	14,789		14,902			14,828			14,922

	Total	$	216,831	$	221,598		$	213,441		$	217,624

Noncovered_Loans_Receivable_Ta

Noncovered Loans Receivable (Tables)	3 Months Ended
	Mar. 31, 2015
Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of loans receivable	Noncovered loans receivable at March 31, 2015 and December 31, 2014 consisted of the following portfolio segments and classes:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	559,363			$	551,343

	Owner-occupied commercial real estate	558,198				535,742

	Non-owner occupied commercial real estate	631,627				616,757

	Total commercial business	1,749,188				1,703,842

	One-to-four family residential	63,944				63,540

	Real estate construction and land development:
	One-to-four family residential	42,993				46,749

	Five or more family residential and commercial properties	57,898				61,360

	Total real estate construction and land development	100,891				108,109

	Consumer	256,977				250,323

	Gross noncovered loans receivable	2,171,000				2,125,814

	Net deferred loan fees	(307		)		(937		)
	Noncovered loans receivable, net	2,170,693				2,124,877

	Allowance for loan losses	(22,317		)		(22,153		)
	Noncovered loans receivable, net of allowance for loan losses	$	2,148,376			$	2,102,724

Loans receivable by credit quality indicator	The following tables present the balance of the noncovered loans receivable by credit quality indicator as of March 31, 2015 and December 31, 2014.


		March 31, 2015
		Pass				OAEM				Substandard				Doubtful		Total
		(In thousands)
	Commercial business:
	Commercial and industrial	$	526,439			$	12,784			$	19,826			$	314	$	559,363

	Owner-occupied commercial real estate	526,401				18,660				13,137				—		558,198

	Non-owner occupied commercial real estate	600,563				16,297				14,767				—		631,627

	Total commercial business	1,653,403				47,741				47,730				314		1,749,188

	One-to-four family residential	61,534				313				2,097				—		63,944

	Real estate construction and land development:
	One-to-four family residential	32,778				3,355				6,860				—		42,993

	Five or more family residential and commercial properties	54,011				—				3,887				—		57,898

	Total real estate construction and land development	86,789				3,355				10,747				—		100,891

	Consumer	249,831				—				7,146				—		256,977

	Gross noncovered loans	$	2,051,557			$	51,409			$	67,720			$	314	$	2,171,000




		December 31, 2014
		Pass				OAEM				Substandard				Doubtful		Total
		(In thousands)
	Commercial business:
	Commercial and industrial	$	509,483			$	14,487			$	27,049			$	324	$	551,343

	Owner-occupied commercial real estate	496,234				22,946				16,562				—		535,742

	Non-owner occupied commercial real estate	584,262				17,643				14,852				—		616,757

	Total commercial business	1,589,979				55,076				58,463				324		1,703,842

	One-to-four family residential	61,185				315				2,040				—		63,540

	Real estate construction and land development:
	One-to-four family residential	34,356				3,977				8,416				—		46,749

	Five or more family residential and commercial properties	57,025				—				4,335				—		61,360

	Total real estate construction and land development	91,381				3,977				12,751				—		108,109

	Consumer	242,836				—				7,487				—		250,323

	Gross noncovered loans	$	1,985,381			$	59,368			$	80,741			$	324	$	2,125,814

Past due financing receivables	The balances of past due noncovered loans, segregated by segments and classes of loans, as of March 31, 2015 and December 31, 2014 were as follows:


		March 31, 2015
		30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
						Greater				Due								and Still
																		Accruing (1)
		(In thousands)
	Commercial business:
	Commercial and industrial	$	1,081			$	2,770			$	3,851			$	555,512	$	559,363	$	—

	Owner-occupied commercial real estate	2,063				333				2,396				555,802		558,198		—

	Non-owner occupied commercial real estate	5,167				—				5,167				626,460		631,627		—

	Total commercial business	8,311				3,103				11,414				1,737,774		1,749,188		—

	One-to-four family residential	391				—				391				63,553		63,944		—

	Real estate construction and land development:
	One-to-four family residential	760				1,964				2,724				40,269		42,993		—

	Five or more family residential and commercial properties	—				—				—				57,898		57,898		—

	Total real estate construction and land development	760				1,964				2,724				98,167		100,891		—

	Consumer	2,181				—				2,181				254,796		256,977		—

	Gross noncovered loans	$	11,643			$	5,067			$	16,710			$	2,154,290	$	2,171,000	$	—

	(1) Excludes PCI loans.


		December 31, 2014
		30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
						Greater				Due								and Still
																		Accruing (1)
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,503			$	1,962			$	4,465			$	546,878	$	551,343	$	—

	Owner-occupied commercial real estate	1,038				100				1,138				534,604		535,742		—

	Non-owner occupied commercial real estate	113				75				188				616,569		616,757		—

	Total commercial business	3,654				2,137				5,791				1,698,051		1,703,842		—

	One-to-four family residential	200				—				200				63,340		63,540		—

	Real estate construction and land development:
	One-to-four family residential	62				2,135				2,197				44,552		46,749		—

	Five or more family residential and commercial properties	—				376				376				60,984		61,360		—

	Total real estate construction and land development	62				2,511				2,573				105,536		108,109		—

	Consumer	2,413				125				2,538				247,785		250,323		—

	Gross noncovered loans	$	6,329			$	4,773			$	11,102			$	2,114,712	$	2,125,814	$	—

	(1) Excludes PCI loans.
Recorded investment balance and related allowance for loan losses of accruing and non-accruing TDRs	The recorded investment balance and related allowance for loan losses of performing and nonaccrual TDR noncovered loans as of March 31, 2015 and December 31, 2014 were as follows:


		March 31, 2015								December 31, 2014
		Performing				Nonaccrual				Performing				Nonaccrual
		TDRs				TDRs				TDRs				TDRs
		(In thousands)
	TDR noncovered loans	$	16,736			$	5,325			$	18,764			$	5,010

	Allowance for loan losses on TDR noncovered loans	1,989				497				1,908				1,033

Troubled debt restructurings on financing receivables	Noncovered loans that were modified as TDRs during the three months ended March 31, 2015 and 2014 are set forth in the following table:


		Three Months Ended March 31,
		2015							2014
		Number of			Outstanding				Number of		Outstanding
		Contracts			Principal Balance				Contracts		Principal Balance
		-1			(1)(2)				-1		(1)(2)
		(Dollars in thousands)
	Commercial business:
	Commercial and industrial	8			$	1,069			9		$	2,213

	Owner-occupied commercial real estate	—			—				1		351

	Total commercial business	8			1,069				10		2,564

	Real estate construction and land development:
	One-to-four family residential	4			2,520				1		190

	Total real estate construction and land development	4			2,520				1		190

	Consumer	1			39				3		222

	Total TDR noncovered loans	13			$	3,628			14		$	2,976


	-1	Number of contracts and outstanding principal balance represent loans which have balances as of period end as certain loans may have been paid-down or charged-off during the three months ended March 31, 2015 and 2014.

	-2	Includes subsequent payments after modifications and reflects the balance as of period end. As the Bank did not forgive any principal or interest balance as part of the loan modification, the Bank’s recorded investment in each loan at the date of modification (pre-modification) did not change as a result of the modification (post-modification), except when the modification was the initial advance on a one-to-four family residential real estate construction and land development loan under a master guidance line. There were no advances on these types of loans during the three months ended March 31, 2015 or 2014.
Troubled debt restructuring loans, subsequently defaulted	The noncovered loans modified during the previous twelve months ended March 31, 2015 and 2014 that subsequently defaulted during the three months ended March 31, 2015 and 2014 are included in the following table:


		Three Months Ended							Three Months Ended
		March 31, 2015							March 31, 2014
		Number of			Outstanding				Number of			Outstanding
		Contracts			Principal				Contracts			Principal
					Balance							Balance
		(Dollars in thousands)
	Commercial business:
	Commercial and industrial	1			$	77			3			$	799

	Non-owner occupied commercial real estate	—			—				1			3

	Total commercial business	1			77				4			802

	Real estate construction and land development:
	One-to-four family residential	1			865				—			—

	Total real estate construction and land development	1			865				—			—

	Total	2			$	942			4			$	802

Noncovered Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of nonaccrual loans	Nonaccrual noncovered loans, segregated by segments and classes of loans, were as follows as of March 31, 2015 and December 31, 2014:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	3,852			$	3,463

	Owner-occupied commercial real estate	1,066				1,163

	Non-owner occupied commercial real estate	—				93

	Total commercial business	4,918				4,719

	One-to-four family residential	—				—

	Real estate construction and land development:
	One-to-four family residential	2,513				2,652

	Total real estate construction and land development	2,513				2,652

	Consumer	21				139

	Gross nonaccrual noncovered loans	$	7,452			$	7,510

Noncovered Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of impaired loans, including restructured	Impaired noncovered loans includes nonaccrual noncovered loans and performing troubled debt restructured noncovered loans ("TDRs") and excludes certain performing troubled debt restructured noncovered loans classified as PCI as these loans are recorded at the recorded investment balance and may not have further impairment. The balance of impaired noncovered loans as of March 31, 2015 and December 31, 2014 are set forth in the following tables.


		March 31, 2015
		Recorded				Recorded				Total				Unpaid		Related
		Investment With				Investment With				Recorded				Contractual		Specific
		No Specific				Specific				Investment				Principal		Valuation
		Valuation				Valuation								Balance		Allowance
		Allowance				Allowance
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,129			$	6,199			$	8,328			$	9,341	$	797

	Owner-occupied commercial real estate	—				2,339				2,339				2,669		629

	Non-owner occupied commercial real estate	2,441				4,660				7,101				7,093		783

	Total commercial business	4,570				13,198				17,768				19,103		2,209

	One-to-four family residential	—				244				244				244		75

	Real estate construction and land development:
	One-to-four family residential	2,589				994				3,583				4,152		152

	Five or more family residential and commercial properties	—				2,032				2,032				2,032		204

	Total real estate construction and land development	2,589				3,026				5,615				6,184		356

	Consumer	—				125				125				127		22

	Total	$	7,159			$	16,593			$	23,752			$	25,658	$	2,662



		December 31, 2014
		Recorded				Recorded				Total				Unpaid		Related
		Investment With				Investment With				Recorded				Contractual		Specific
		No Specific				Specific				Investment				Principal		Valuation
		Valuation				Valuation								Balance		Allowance
		Allowance				Allowance
		(In thousands)
	Commercial business:
	Commercial and industrial	$	1,134			$	7,906			$	9,040			$	9,349	$	1,325

	Owner-occupied commercial real estate	360				2,421				2,781				2,781		684

	Non-owner occupied commercial real estate	2,459				4,846				7,305				7,279		465

	Total commercial business	3,953				15,173				19,126				19,409		2,474

	One-to-four family residential	—				245				245				245		75

	Real estate construction and land development:
	One-to-four family residential	2,307				2,217				4,524				4,964		396

	Five or more family residential and commercial properties	—				2,056				2,056				2,056		234

	Total real estate construction and land development	2,307				4,273				6,580				7,020		630

	Consumer	33				172				205				208		56

	Total	$	6,293			$	19,863			$	26,156			$	26,882	$	3,235

Schedule of average recorded investment impaired loans including restructuring loans	The average recorded investment of impaired noncovered loans for the three months ended March 31, 2015 and 2014 are set forth in the following table.


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	8,684			$	14,935

	Owner-occupied commercial real estate	2,560				3,189

	Non-owner occupied commercial real estate	7,203				7,396

	Total commercial business	18,447				25,520

	One-to-four family residential	244				380

	Real estate construction and land development:
	One-to-four family residential	4,053				5,591

	Five or more family residential and commercial properties	2,044				2,265

	Total real estate construction and land development	6,097				7,856

	Consumer	166				889

	Total	$	24,954			$	34,645

PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased impaired loans	The following table reflects the outstanding principal balance and recorded investment at March 31, 2015 and December 31, 2014 of the PCI noncovered loans:


		March 31, 2015								31-Dec-14
		Outstanding Principal				Recorded Investment				Outstanding Principal				Recorded Investment
		(In thousands)
	Commercial business:
	Commercial and industrial	$	20,400			$	17,162			$	22,144			$	18,040

	Owner-occupied commercial real estate	15,980				14,448				18,165				16,208

	Non-owner occupied commercial real estate	12,482				11,043				12,684				11,185

	Total commercial business	48,862				42,653				52,993				45,433

	One-to-four family residential	2,250				2,229				2,269				2,235

	Real estate construction and land development:
	One-to-four family residential	8,123				3,816				8,456				4,223

	Five or more family residential and commercial properties	2,272				2,492				2,721				2,963

	Total real estate construction and land development	10,395				6,308				11,177				7,186

	Consumer	5,574				6,680				5,983				7,055

	Gross PCI noncovered loans	$	67,081			$	57,870			$	72,422			$	61,909

Schedule of impaired purchased loans accretable yield	The following table summarizes the accretable yield on the PCI noncovered loans resulting from the Pierce, NCB, Valley and Washington Banking acquisitions for the three months ended March 31, 2015 and 2014.


			Three Months Ended March 31,
			2015				2014
			(In thousands)
	Balance at the beginning of the period		$	12,572			$	7,714

	Accretion		(1,012		)		(828		)
	Disposal and other		(284		)		(633		)
	Change in accretable yield		2,739				836

	Balance at the end of the period		$	14,015			$	7,089

Covered_Loans_Receivable_Table

Covered Loans Receivable (Tables)	3 Months Ended
	Mar. 31, 2015
Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of loans receivable	The recorded investment of covered loans receivable at March 31, 2015 and December 31, 2014 consisted of the following portfolio segments and classes:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	19,389			$	19,110

	Owner-occupied commercial real estate	55,389				59,244

	Non-owner occupied commercial real estate	23,279				26,879

	Total commercial business	98,057				105,233

	One-to-four family residential	5,775				5,990

	Real estate construction and land development:
	One-to-four family residential	2,338				2,446

	Five or more family residential and commercial properties	3,152				3,560

	Total real estate construction and land development	5,490				6,006

	Consumer	8,299				8,971

	Gross covered loans receivable	117,621				126,200

	Allowance for loan losses	(5,499		)		(5,576		)
	Covered loans receivable, net	$	112,122			$	120,624

Loans receivable by credit quality indicator	The following tables present the recorded invested balance of the covered loans receivable by credit quality indicator as of March 31, 2015 and December 31, 2014.


		March 31, 2015
		Pass				OAEM				Substandard				Doubtful		Total
		(In thousands)
	Commercial business:
	Commercial and industrial	$	12,254			$	105			$	4,850			$	2,180	$	19,389

	Owner-occupied commercial real estate	39,628				3,983				11,529				249		55,389

	Non-owner occupied commercial real estate	8,427				36				13,691				1,125		23,279

	Total commercial business	60,309				4,124				30,070				3,554		98,057

	One-to-four family residential	5,432				—				343						5,775

	Real estate construction and land development:
	One-to-four family residential	2,075				—				263				—		2,338

	Five or more family residential and commercial properties	1,534				—				1,618				—		3,152

	Total real estate construction and land development	3,609				—				1,881				—		5,490

	Consumer	6,369				—				1,930				—		8,299

	Gross covered loans receivable	$	75,719			$	4,124			$	34,224			$	3,554	$	117,621



		December 31, 2014
		Pass				OAEM				Substandard				Doubtful		Total
		(In thousands)
	Commercial business:
	Commercial and industrial	$	11,297			$	131			$	5,442			$	2,240	$	19,110

	Owner-occupied commercial real estate	40,357				4,957				13,583				347		59,244

	Non-owner occupied commercial real estate	9,656				40				17,183				—		26,879

	Total commercial business	61,310				5,128				36,208				2,587		105,233

	One-to-four family residential	5,414				425				151				—		5,990

	Real estate construction and land development:
	One-to-four family residential	2,178				—				268				—		2,446

	Five or more family residential and commercial properties	1,758				—				1,802				—		3,560

	Total real estate construction and land development	3,936				—				2,070				—		6,006

	Consumer	7,030				—				1,941				—		8,971

	Gross covered loans receivable	$	77,690			$	5,553			$	40,370			$	2,587	$	126,200

Past due financing receivables	The balances of past due covered loans, segregated by segments and classes of loans, as of March 31, 2015 and December 31, 2014 were as follows:


		March 31, 2015
		30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
						Greater				Due								and Still
																		Accruing (1)
		(In thousands)
	Commercial business:
	Commercial and industrial	$	222			$	2,803			$	3,025			$	16,364	$	19,389	$	—

	Owner-occupied commercial real estate	353				570				923				54,466		55,389		—

	Non-owner occupied commercial real estate	—				460				460				22,819		23,279		—

	Total commercial business	575				3,833				4,408				93,649		98,057		—

	One-to-four family residential	111				—				111				5,664		5,775		—

	Real estate construction and land development:
	One-to-four family residential	—				89				89				2,249		2,338		—

	Five or more family residential and commercial properties	—				40				40				3,112		3,152		—

	Total real estate construction and land development	—				129				129				5,361		5,490		—

	Consumer	140				736				876				7,423		8,299		—

	Gross covered loans receivable	$	826			$	4,698			$	5,524			$	112,097	$	117,621	$	—

	(1) Excludes covered PCI loans.


		December 31, 2014
		30-89 Days				90 Days or				Total Past				Current		Total		90 Days or More
						Greater				Due								and Still
																		Accruing (1)
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,262			$	1,163			$	3,425			$	15,685	$	19,110	$	—

	Owner-occupied commercial real estate	645				2,680				3,325				55,919		59,244		—

	Non-owner occupied commercial real estate	1,713				456				2,169				24,710		26,879		—

	Total commercial business	4,620				4,299				8,919				96,314		105,233		—

	One-to-four family residential	112				—				112				5,878		5,990		—

	Real estate construction and land development:
	One-to-four family residential	178				90				268				2,178		2,446		—

	Five or more family residential and commercial properties	—				220				220				3,340		3,560		—

	Total real estate construction and land development	178				310				488				5,518		6,006		—

	Consumer	263				727				990				7,981		8,971		—

	Gross covered loans receivable	$	5,173			$	5,336			$	10,509			$	115,691	$	126,200	$	—

	(1) Excludes covered PCI loans.
Recorded investment balance and related allowance for loan losses of accruing and non-accruing TDRs	The recorded investment balance and related allowance for loan losses of performing and nonaccrual covered TDRs as of March 31, 2015 and December 31, 2014 were as follows:


		March 31, 2015								December 31, 2014
		Performing				Nonaccrual				Performing				Nonaccrual
		TDRs				TDRs				TDRs				TDRs
		(In thousands)
	TDR covered loans	$	10,419			$	2,186			$	10,289			$	2,246

	Allowance for loan losses on TDR covered loans	28				2				1				2

Troubled debt restructurings on financing receivables	Covered loans that were modified as TDRs during the three months ended March 31, 2015 and 2014 are set forth in the following table:


		Three Months Ended March 31,
		2015							2014
		Number of			Outstanding				Number of			Outstanding
		Contracts			Principal Balance				Contracts			Principal Balance
		-1			(1)(2)				-1			(1)(2)
		(Dollars in thousands)
	Commercial business:
	Commercial and industrial	1			$	126			1			$	3,626

	Owner-occupied commercial real estate	1			308				—			—

	Total commercial business	2			434				1			3,626

	Consumer	1			105				—			—

	Total TDR covered loans	3			$	539			1			$	3,626


	-1	Number of contracts and outstanding principal balance represent loans which have balances as of period end as certain loans may have been paid-down or charged-off during the three months ended March 31, 2015 and 2014.

	-2	Includes subsequent payments after modifications and reflects the balance as of period end. As the Bank did not forgive any principal or interest balance as part of the loan modification, the Bank’s recorded investment in each loan at the date of modification (pre-modification) did not change as a result of the modification (post-modification).
Purchased impaired loans	The following table reflects the outstanding principal balance and recorded investment at March 31, 2015 and December 31, 2014 of the PCI covered loans:


		March 31, 2015								31-Dec-14
		Outstanding Principal				Recorded Investment				Outstanding Principal				Recorded Investment
		(In thousands)
	Commercial business:
	Commercial and industrial	$	10,239			$	7,891			$	9,635			$	7,134

	Owner-occupied commercial real estate	19,782				17,946				23,071				20,666

	Non-owner occupied commercial real estate	17,403				17,878				20,607				20,257

	Total commercial business	47,424				43,715				53,313				48,057

	One-to-four family residential	3,626				3,287				3,837				3,478

	Real estate construction and land development:
	One-to-four family residential	101				1,215				103				1,308

	Five or more family residential and commercial properties	1,915				1,617				2,140				1,802

	Total real estate construction and land development	2,016				2,832				2,243				3,110

	Consumer	2,796				2,584				2,945				2,717

	Gross PCI covered loans	$	55,862			$	52,418			$	62,338			$	57,362

Schedule of impaired purchased loans accretable yield	The following table summarizes the accretable yield on the PCI covered loans resulting from the Cowlitz acquisition and Washington Banking Merger for the three months ended March 31, 2015 and 2014.


			Three Months Ended March 31,
			2015				2014
		(In thousands)
	Balance at the beginning of the period		$	8,520			$	9,535

	Accretion		(898		)		(685		)
	Disposal and other		(354		)		(43		)
	Change in accretable yield		1,042				256

	Balance at the end of the period		$	8,310			$	9,063

Covered Nonaccrual Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of average recorded investment impaired loans including restructuring loans	The recorded investment balance of nonaccrual covered loans, segregated by segments and classes of loans, were as follows as of March 31, 2015 and December 31, 2014:


		March 31, 2015				December 31, 2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,180			$	2,321

	Owner -occupied commercial real estate	1,111				1,132

	Non-owner-occupied commercial real estate	413				424

	Total commercial business	3,704				3,877

	One-to-four family residential	174				179

	Consumer	6				6

	Gross nonaccrual covered loans	$	3,884			$	4,062

Covered Impaired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of average recorded investment impaired loans including restructuring loans	The average recorded investment of impaired covered loans for the three months ended March 31, 2015 and 2014 are set forth in the following table.


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,257			$	3,706

	Owner-occupied commercial real estate	1,276				214

	Non-owner occupied commercial real estate	418				—

	Total commercial business	3,951				3,920

	One-to-four family residential	—				225

	Real estate construction and land development:
	One-to-four family residential	177				—

	Total real estate construction and land development	177				—

	Consumer	6				7

	Total	$	4,134			$	4,152

Schedule of impaired loans, including restructured	A covered loan, not initially classified as PCI, generally becomes impaired when classified as nonaccrual or when its modification results in a TDR. Impaired covered loans as of March 31, 2015 and December 31, 2014 are set forth in the following tables.


		March 31, 2015
		Recorded				Recorded				Total				Unpaid		Related
		Investment With				Investment With				Recorded				Contractual		Specific
		No Specific				Specific				Investment				Principal		Valuation
		Valuation				Valuation								Balance		Allowance
		Allowance				Allowance
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,180			$	—			$	2,180			$	3,577	$	—

	Owner-occupied commercial real estate	—				1,419				1,419				1,452		302

	Non-owner occupied commercial real estate	—				413				413				438		57

	Total commercial business	2,180				1,832				4,012				5,467		359

	Real estate construction and land development:
	One-to-four family residential	—				174				174				180		48

	Total real estate construction and land development	—				174				174				180		48

	Consumer	—				6				6				8		2

	Total	$	2,180			$	2,012			$	4,192			$	5,655	$	409




		December 31, 2014
		Recorded				Recorded				Total				Unpaid		Related
		Investment With				Investment With				Recorded				Contractual		Specific
		No Specific				Specific				Investment				Principal		Valuation
		Valuation				Valuation								Balance		Allowance
		Allowance				Allowance
		(In thousands)
	Commercial business:
	Commercial and industrial	$	2,240			$	94			$	2,334			$	3,696	$	9

	Owner-occupied commercial real estate	—				1,132				1,132				1,156		295

	Non-owner occupied commercial real estate	—				424				424				440		66

	Total commercial business	2,240				1,650				3,890				5,292		370

	Real estate construction and land development:
	One-to-four family residential	—				179				179				182		51

	Total real estate construction and land development	—				179				179				182		51

	Consumer	—				6				6				8		2

	Total	$	2,240			$	1,835			$	4,075			$	5,482	$	423

Allowance_for_Loan_Losses_Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2015
Allowance for Loan Losses [Line Items]
Schedule of changes in allowance for loan losses	The following tables detail activity in the allowance for loan losses disaggregated on the basis of the Company’s impairment method as of and for the three months ended March 31, 2015:


		Balance at Beginning of Period				Charge-offs				Recoveries			Provision for Loan Losses				Balance at End of Period
		(In thousands)
	Three Months Ended March 31, 2015
	Commercial business:
	Commercial and industrial	$	10,553			$	(660	)		$	201		$	(236	)		$	9,858

	Owner-occupied commercial real estate	4,095				—				—			78				4,173

	Non-owner occupied commercial real estate	5,538				(188		)		—			679				6,029

	Total commercial business	20,186				(848		)		201			521				20,060

	One-to-four family residential	1,200				—				1			41				1,242

	Real estate construction and land development:
	One-to-four family residential	1,786				(106		)		—			(115		)		1,565

	Five or more family residential and commercial properties	972				—				—			33				1,005

	Total real estate construction and land development	2,758				(106		)		—			(82		)		2,570

	Consumer	2,769				(481		)		112			775				3,175

	Unallocated	816				—				—			(47		)		769

	Total	$	27,729			$	(1,435	)		$	314		$	1,208			$	27,816



		Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI			31-Mar-15
																				covered loans
		(In thousands)
	Commercial business:
	Commercial and industrial	$	797			$	6,278			$	—		$	116			$	2,211		$	456		$	9,858

	Owner-occupied commercial real estate	629				1,756				302			14				330			1,142			4,173

	Non-owner occupied commercial real estate	783				2,772				57			6				363			2,048			6,029

	Total commercial business	2,209				10,806				359			136				2,904			3,646			20,060

	One-to-four family residential	75				580				—			8				207			372			1,242

	Real estate construction and land development:
	One-to-four family residential	152				362				48			—				264			739			1,565

	Five or more family residential and commercial properties	204				713				—			—				88			—			1,005

	Total real estate construction and land development	356				1,075				48			—				352			739			2,570

	Consumer	22				2,233				2			4				729			185			3,175

	Unallocated	—				769				—			—				—			—			769

	Total	$	2,662			$	15,463			$	409		$	148			$	4,192		$	4,942		$	27,816

	The following table details the recorded investment balance of the loan receivables disaggregated on the basis of the Company’s impairment method as of March 31, 2015:


		Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI			31-Mar-15
																				covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	8,328			$	533,873			$	2,180		$	9,318			$	17,162		$	7,891		$	578,752

Owner-occupied commercial real estate	2,339				541,411				1,419			36,024				14,448			17,946			613,587

Non-owner occupied commercial real estate	7,101				613,483				413			4,988				11,043			17,878			654,906

Total commercial business	17,768				1,688,767				4,012			50,330				42,653			43,715			1,847,245

One-to-four family residential	244				61,471				—			2,488				2,229			3,287			69,719

Real estate construction and land development:
One-to-four family residential	3,583				35,594				174			949				3,816			1,215			45,331

Five or more family residential and commercial properties	2,032				53,374				—			1,535				2,492			1,617			61,050

Total real estate construction and land development	5,615				88,968				174			2,484				6,308			2,832			106,381

Consumer	125				250,172				6			5,709				6,680			2,584			265,276

Total	$	23,752			$	2,089,378			$	4,192		$	61,011			$	57,870		$	52,418		$	2,288,621



The following tables detail activity in the allowance for loan losses disaggregated on the basis of the Company’s impairment method for the three months ended March 31, 2014 and as of December 31, 2014.


	Balance at Beginning of Period				Charge-offs				Recoveries			Provision for Loan Losses				Balance at End of Period
	(In thousands)
Three Months Ended March 31, 2014
Commercial business:
Commercial and industrial	$	13,478			$	(79	)		$	232		$	(1,354	)		$	12,277

Owner-occupied commercial real estate	4,049				—				—			414				4,463

Non-owner occupied commercial real estate	5,326				—				—			(100		)		5,226

Total commercial business	22,853				(79		)		232			(1,040		)		21,966

One-to-four family residential	1,100				—				—			21				1,121

Real estate construction and land development:
One-to-four family residential	1,720				—				—			259				1,979

Five or more family residential and commercial properties	953				—				—			1,030				1,983

Total real estate construction and land development	2,673				—				—			1,289				3,962

Consumer	1,597				(63		)		15			141				1,690

Unallocated	601				—				—			47				648

Total	$	28,824			$	(142	)		$	247		$	458			$	29,387



	Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI			31-Dec-14
																			covered loans
	(In thousands)
Commercial business:
Commercial and industrial	$	1,325			$	6,449			$	9		$	108			$	2,191		$	471		$	10,553

Owner-occupied commercial real estate	684				1,629				295			14				330			1,143			4,095

Non-owner occupied commercial real estate	465				2,541				66			6				353			2,107			5,538

Total commercial business	2,474				10,619				370			128				2,874			3,721			20,186

One-to-four family residential	75				530				—			8				207			380			1,200

Real estate construction and land development:
One-to-four family residential	396				322				51			—				264			753			1,786

Five or more family residential and commercial properties	234				650				—			—				88			—			972

Total real estate construction and land development	630				972				51			—				352			753			2,758

Consumer	56				1,931				2			12				617			151			2,769

Unallocated	—				816				—			—				—			—			816

Total	$	3,235			$	14,868			$	423		$	148			$	4,050		$	5,005		$	27,729

Schedule of loan receivables on the basis of impairment method	The following table details the recorded investment balance of the loan receivables disaggregated on the basis of the Company’s impairment method for the year ended December 31, 2014:


		Noncovered loans individually evaluated for impairment				Noncovered loans collectively evaluated for impairment				Covered loans individually evaluated for impairment			Covered loans collectively evaluated for impairment				PCI noncovered loans			PCI			31-Dec-14
																				covered loans
		(In thousands)
	Commercial business:
	Commercial and industrial	$	9,040			$	524,263			$	2,334		$	9,642			$	18,040		$	7,134		$	570,453

	Owner-occupied commercial real estate	2,781				516,753				1,132			37,446				16,208			20,666			594,986

	Non-owner occupied commercial real estate	7,305				598,267				424			6,198				11,185			20,257			643,636

	Total commercial business	19,126				1,639,283				3,890			53,286				45,433			48,057			1,809,075

	One-to-four family residential	245				61,060				—			2,512				2,235			3,478			69,530

	Real estate construction and land development:
	One-to-four family residential	4,524				38,002				179			959				4,223			1,308			49,195

	Five or more family residential and commercial properties	2,056				56,341				—			1,758				2,963			1,802			64,920

	Total real estate construction and land development	6,580				94,343				179			2,717				7,186			3,110			114,115

	Consumer	205				243,063				6			6,248				7,055			2,717			259,294

	Total	$	26,156			$	2,037,749			$	4,075		$	64,763			$	61,909		$	57,362		$	2,252,014

Originated Loans
Allowance for Loan Losses [Line Items]
Schedule of changes in allowance for loan losses	A summary of the changes in the noncovered loans’ allowance for loan losses during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Balance at the beginning of the period	$	22,153			$	22,657

	Charge-offs	(1,435		)		(63		)
	Recoveries of loans previously charged-off	314				247

	Provision for loan losses	1,285				(21		)

	Balance at the end of the period	$	22,317			$	22,820

Purchased Loans
Allowance for Loan Losses [Line Items]
Schedule of changes in allowance for loan losses	A summary of the changes in the covered loans’ allowance for loan losses during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31,
		2015				2014
		(In thousands)
	Balance at the beginning of the period	$	5,576			$	6,167

	Charge-offs	—				(79		)

	Provision for loan losses	(77		)		479

	Balance at the end of the period	$	5,499			$	6,567

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	3 Months Ended
	Mar. 31, 2015
FDIC Indemnification Asset [Roll Forward]
Schedule of FDIC indemnification asset	Changes in the FDIC indemnification asset during the three months ended March 31, 2015 and 2014 were as follows:


		Three Months Ended March 31,
		2015			2014
		(In thousands)
	Balance at the beginning of the period	$	1,116		$	4,382

	Cash payments received or receivable from the FDIC	(231		)	(376		)
	FDIC share of additional estimated (gains) losses	(69		)	336

	Net amortization	(124		)	(373		)
	Balance at the end of the period	$	692		$	3,969

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	3 Months Ended
	Mar. 31, 2015
Real Estate [Abstract]
Changes in other real estate owned	Changes in other real estate owned during the three months ended March 31, 2015 and 2014 were as follows:


		Three Months Ended March 31,
		2015			2014
		(In thousands)
	Balance at the beginning of the period	$	3,355		$	4,559

	Additions	1,728			218

	Proceeds from dispositions	(589		)	(520		)
	(Loss) gain on sales, net	(70		)	27

	Valuation adjustment	(330		)	—

	Balance at the end of the period	$	4,094		$	4,284

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Change in other intangible assets	The following table presents the change in the other intangible assets for the periods indicated:


		Three Months Ended March 31,
		2015		2014
		(In thousands)
	Balance at the beginning of the period	$	10,889	$	1,615

	Less: Amortization	527		156

	Balance at the end of the period	$	10,362	$	1,459

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Schedule of earnings per share reconciliation	The following table illustrates the reconciliation of weighted average shares used for earnings per common share computations for the three months ended March 31, 2015 and 2014:


		Three Months Ended March 31,
		2015				2014
		(Dollars in thousands)
	Net income:
	Net income	$	9,779			$	2,543

	Less: Dividends and undistributed earnings allocated to participating securities	(95		)		(28		)
	Net income allocated to common shareholders	$	9,684			$	2,515

	Basic:
	Weighted average common shares outstanding	30,290,200				16,214,735

	Less: Restricted stock awards	(261,264		)		(197,697		)
	Total basic weighted average common shares outstanding	30,028,936				16,017,038

	Diluted:
	Basic weighted average common shares outstanding	30,028,936				16,017,038

	Incremental shares from stock options	22,946				9,764

	Total diluted weighted average common shares outstanding	30,051,882				16,026,802

Schedule of dividends activity	The following table summarizes the dividend activity for the three months ended March 31, 2015 and calendar year 2014.


	Declared		Cash Dividend per Share		Record Date		Paid Date
	29-Jan-14		$0.08		February 10, 2014		February 24, 2014
	27-Mar-14		$0.08		April 8, 2014		April 23, 2014
	July 24, 2014		$0.09		August 7, 2014		August 21, 2014
	October 23, 2014		$0.09		November 6, 2014		November 20, 2014
	November 11, 2014		$0.16		December 2, 2014		December 12, 2014
	January 28, 2015		$0.10		February 10, 2015		February 24, 2015
Schedule of repurchased shares	The following table provides total repurchased shares and average share prices under the applicable plans for the periods indicated:


		Three Months Ended March 31,
		2015				2014			Plan Total (1)
	Tenth Plan
	Repurchased shares	—				—			704,975

	Stock repurchase average share price	$	—			$	—		$	15.85


	Eleventh Plan
	Repurchased shares	137,366				—			137,366

	Stock repurchase average share price	$	16.1			$	—		$	16.1

	(1) Represents shares repurchased and average share price paid during the duration of the plan.

Tables

(Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Changes in accumulated other comprehensive income (AOCI) by component	The changes in accumulated other comprehensive income (loss) (“AOCI”) by component, during the three months ended March 31, 2015 and 2014 are as follows:


		Three Months Ended March 31, 2015
		Changes in			Accretion of other-than-			Total
		fair value of			temporary
		available for sale securities (1)			impairment on held to maturity
					securities (1)
		(In thousands)
	Balance of AOCI at the beginning of period	$	3,567		$	(189	)	$	3,378

	Other comprehensive income before reclassification	3,152			8			3,160

	Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	(354		)	—			(354		)

	Net current period other comprehensive income	2,798			8			2,806

	Balance of AOCI at the end of period	$	6,365		$	(181	)	$	6,184


	(1)	All amounts are net of tax.


		Three Months Ended March 31, 2014
		Changes in			Accretion of other-than-			Total
		fair value of			temporary
		available for sale securities (1)			impairment on held to maturity
					securities (1)
		(In thousands)
	Balance of AOCI at the beginning of the period	$	(923	)	$	(239	)	$	(1,162	)
	Other comprehensive income before reclassification	593			15			608

	Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	(117		)	—			(117		)

	Net current period other comprehensive income	476			15			491

	Balance of AOCI at the end of the period	$	(447	)	$	(224	)	$	(671	)

	(1)	All amounts are net of tax.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Share-based Compensation [Abstract]
Schedule of stock option activity	The following tables summarize the stock option activity for the three months ended March 31, 2015 and 2014:


		Shares		Weighted-Average Exercise Price		Weighted-Average	Aggregate
						Remaining	Intrinsic
						Contractual	Value (In
						Term (In years)	thousands)
	Outstanding at December 31, 2013	194,482		$	15.82

	Granted	—		—

	Exercised	(4,492	)	12.7

	Forfeited or expired	(6,055	)	19.76

	Outstanding at March 31, 2014	183,935		$	15.77	3.22	$	503


	Outstanding at December 31, 2014	156,407		$	13.59

	Granted	—		—

	Exercised	(37,437	)	11.91

	Forfeited or expired	(7,441	)	15.08

	Outstanding at March 31, 2015	111,529		$	14.06	3.17	$	353

	Vested and expected to vest at March 31, 2015	111,529		$	14.06	3.17	$	353

	Exercisable at March 31, 2015	111,529		$	14.06	3.17	$	353

Schedule of restricted stock award activity	The following tables summarize the restricted and unrestricted stock award activity for the three months ended March 31, 2015 and 2014:


		Shares		Weighted-Average Grant Date Fair Value
	Nonvested at December 31, 2013	202,939		$	14.29

	Granted	6,407		17.17

	Vested	(30,176	)	14.55

	Forfeited	(811	)	14.67

	Nonvested at March 31, 2014	178,359		$	14.35


	Nonvested at December 31, 2014	238,669		$	15.2

	Granted	90,627		16.28

	Vested	(32,699	)	14.66

	Forfeited	(2,022	)	15.63

	Nonvested at March 31, 2015	294,575		$	15.59

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair value measurements of assets on a recurring basis	The following tables summarize the balances of assets measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014.


		March 31, 2015
		Total			Level 1				Level 2			Level 3
		(In thousands)
	Investment securities available for sale:
	U.S. Treasury and U.S. Government-sponsored agencies	$	22,519		$	—			$	22,519		$	—

	Municipal securities	185,831			—				185,831			—

	Mortgage backed securities and collateralized mortgage obligations—residential:
	U.S Government-sponsored agencies	530,706			—				530,706			—

	Corporate obligations	6,259			—				6,259			—

	Mutual funds and other equities	1,984			1,984				—			—

	Total	$	747,299		$	1,984			$	745,315		$	—



		December 31, 2014
		Total			Level 1				Level 2			Level 3
		(In thousands)
	Investment securities available for sale:
	U.S. Treasury and U.S. Government-sponsored agencies	$	21,427		$	—			$	21,427		$	—

	Municipal securities	173,037			—				173,037			—

	Mortgage backed securities and collateralized mortgage obligations—residential:
	U.S Government-sponsored agencies	542,399			—				542,399			—

	Corporate obligations	4,010			—				4,010			—

	Mutual funds and other equities	1,973			1,973				—			—

	Total	$	742,846		$	1,973			$	740,873		$	—

Fair value measurements of assets on a nonrecurring basis	The tables below represent assets measured at fair value on a nonrecurring basis at March 31, 2015 and December 31, 2014 and the net losses (gains) recorded in earnings during three months ended March 31, 2015 and 2014.


		Basis(1)			Fair Value at March 31, 2015
					Total				Level 1			Level 2			Level 3		Net Losses
																	Recorded in
																	Earnings
																	During
																	the Three Months Ended March 31, 2015
		(In thousands)
	Impaired noncovered loans:
	Commercial business:
	Commercial and industrial	$	84		$	81			$	—		$	—		$	81	$	—

	Total commercial business	84			81				—			—			81		—

	Total	84			81				—			—			81		—

	Other real estate owned:	$	1,057		$	727			$	—		$	—		$	727	$	330

	Total assets measured	$	1,141		$	808			$	—		$	—		$	808	$	330


	(1)	Basis represents the unpaid principal balance of impaired noncovered loans and carrying value at ownership date of other real estate owned.



		Basis(1)			Fair Value at December 31, 2014
					Total				Level 1			Level 2			Level 3		Net Losses
																	(Gains)
																	Recorded in
																	Earnings
																	During
																	the Three Months Ended March 31, 2014
		(In thousands)
	Impaired noncovered loans:
	Commercial business:
	Commercial and industrial	$	161		$	138			$	—		$	—		$	138	$	369

	Owner-occupied commercial real estate	—			—				—			—			—		(62		)

	Non-owner occupied commercial real estate	—			—				—			—			—		(27		)

	Total commercial business	161			138				—			—			138		280

	Real estate construction and land development:
	One-to-four family residential	2,094			1,725				—			—			1,725		338

	Total real estate construction and land development	2,094			1,725				—			—			1,725		338

	Consumer	49			45				—			—			45		24

	Total	2,304			1,908				—			—			1,908		642

	Covered impaired loans:
	Total	—			—				—			—			—		42

	Investment securities held to maturity:
	Mortgage back securities and collateralized mortgage obligations – residential:
	Private residential collateralized mortgage obligations	36			11				—			11			—		8

	Total assets measured	$	2,340		$	1,919			$	—		$	11		$	1,908	$	692


(1)	Basis represents the unpaid principal balance of impaired noncovered and impaired covered loans and amortized cost of investment securities held to maturity.
Fair value measurements for financial instruments measured at fair value on a non-recurring basis	The following table presents quantitative information about Level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis at March 31, 2015 and December 31, 2014.


		March 31, 2015
		Fair			Valuation		Unobservable Input(s)		Range of Inputs; Weighted
		Value			Technique(s)				Average
		(Dollars in thousands)
	Impaired noncovered loans	$	81		Market approach		Adjustment for differences between the comparable sales		(50.0%) - 0.0%; (25.0%)

	Other real estate owned	$	727		Market approach		Adjustment for differences between the comparable sales		(6.0%) - 3.0%; (5.0%)



		December 31, 2014
		Fair			Valuation		Unobservable Input(s)		Range of Inputs; Weighted
		Value			Technique(s)				Average
		(Dollars in thousands)
	Impaired noncovered loans	$	1,908		Market approach		Adjustment for differences between the comparable sales		(47.5%) - 96.2%; 7.0%

Schedule of carrying value and fair value of financial instruments

		March 31, 2015
		Carrying Value			Fair Value				Fair Value Measurements Using:

									Level 1			Level 2			Level 3

		(In thousands)
	Financial Assets:
	Cash and cash equivalents	$	80,064		$	80,064			$	80,064		$	—		$	—

	Other interest earning deposits	9,364			9,396				—			9,396			—

	Investment securities available for sale	747,299			747,299				1,984			745,315			—

	Investment securities held to maturity	35,425			36,633				—			36,633			—

	Federal Home Loan Bank stock	12,022			N/A				N/A			N/A			N/A

	Loans held for sale	8,742			8,966				—			8,966			—

	Loans receivable, net of allowance for loan losses	2,260,498			2,325,462				—			—			2,325,462

	Accrued interest receivable	10,132			10,132				3			3,465			6,664

	Financial Liabilities:
	Deposits:
	Noninterest deposits, NOW accounts, money market accounts and savings accounts	$	2,422,213		$	2,422,213			$	2,422,213		$	—		$	—

	Certificate of deposit accounts	490,245			483,408				—			483,408			—

	Total deposits	$	2,912,458		$	2,905,621			$	2,422,213		$	483,408		$	—

	Federal Home Loan Bank advances	$	7,420		$	7,420			$	7,420		$	—		$	—

	Securities sold under agreement to repurchase	23,177			23,177				23,177			—			—

	Junior subordinated debentures	19,205			19,205				—			—			19,205

	Accrued interest payable	266			266				58			188			20



		December 31, 2014
		Carrying Value			Fair Value				Fair Value Measurements Using:
									Level 1			Level 2			Level 3
		(In thousands)
	Financial Assets:
	Cash and cash equivalents	$	121,636		$	121,636			$	121,636		$	—		$	—

	Other interest earning deposits	10,126			10,145				—			10,145			—

	Investment securities available for sale	742,846			742,846				1,973			740,873			—

	Investment securities held to maturity	35,814			36,874				—			36,874			—

	Federal Home Loan Bank stock	12,188			N/A				N/A			N/A			N/A

	Loans held for sale	5,582			5,710				—			5,710			—

	Loans receivable, net of allowance for loan losses	2,223,348			2,279,081				—			—			2,279,081

	Accrued interest receivable	9,836			9,836				3			3,009			6,824

Financial Liabilities:
Deposits:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	$	2,380,934		$	2,380,934			$	2,380,934		$	—		$	—

Certificate of deposit accounts	525,397			525,768				—			525,768			—

Total deposits	$	2,906,331		$	2,906,702			$	2,380,934		$	525,768		$	—

Securities sold under agreement to repurchase	$	32,181		$	32,181			$	32,181		$	—		$	—

Junior subordinated debentures	19,082			19,082				—			—			19,082

Accrued interest payable	411			411				62			328			21

Description_of_Business_Basis_2

Description of Business, Basis of Presentation and Significant Accounting Policies and Recent Issued Accounting Policies (Details) (Heritage Bank)	Mar. 31, 2015
	Branch
Heritage Bank
Business Description and Basis of Presentation [Line Items]
Number of branches operating	66

Investment_Securities_Details

Investment Securities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Securities Available for Sale
Amortized Cost	$737,485	$737,345
Gross Unrealized Gains	10,879	7,215
Gross Unrealized Losses	-1,065	-1,714
Fair Value	747,299	742,846
Securities Held to Maturity
Amortized Cost	35,425	35,814
Gross Unrecognized Gains	1,355	1,249
Gross Unrecognized Losses	-147	-189
Fair Value	36,633	36,874
U.S. Treasury and U.S. Government-sponsored agencies
Securities Available for Sale
Amortized Cost	22,377	21,414
Gross Unrealized Gains	142	44
Gross Unrealized Losses	0	-31
Fair Value	22,519	21,427
Securities Held to Maturity
Amortized Cost	1,586	1,591
Gross Unrecognized Gains	183	167
Gross Unrecognized Losses	0	0
Fair Value	1,769	1,758
Municipal securities
Securities Available for Sale
Amortized Cost	182,056	170,082
Gross Unrealized Gains	3,931	3,139
Gross Unrealized Losses	-156	-184
Fair Value	185,831	173,037
Securities Held to Maturity
Amortized Cost	22,331	22,486
Gross Unrecognized Gains	643	643
Gross Unrecognized Losses	-12	-11
Fair Value	22,962	23,118
U.S. Government-sponsored agencies
Securities Available for Sale
Amortized Cost	524,832	539,859
Gross Unrealized Gains	6,773	4,015
Gross Unrealized Losses	-899	-1,475
Fair Value	530,706	542,399
Securities Held to Maturity
Amortized Cost	10,665	10,866
Gross Unrecognized Gains	449	364
Gross Unrecognized Losses	-48	-74
Fair Value	11,066	11,156
Corporate obligations
Securities Available for Sale
Amortized Cost	6,264	4,034
Gross Unrealized Gains	5	0
Gross Unrealized Losses	-10	-24
Fair Value	6,259	4,010
Mutual funds and other equities
Securities Available for Sale
Amortized Cost	1,956	1,956
Gross Unrealized Gains	28	17
Gross Unrealized Losses	0	0
Fair Value	1,984	1,973
Private residential collateralized mortgage obligations
Securities Held to Maturity
Amortized Cost	843	871
Gross Unrecognized Gains	80	75
Gross Unrecognized Losses	-87	-104
Fair Value	$836	$842

Investment_Securities_Contract

Investment Securities - Contractual Maturities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Securities Available for Sale, Amortized Cost
Due in one year or less	$5,127
Due after one year through three years	34,103
Due after three years through five years	33,231
Due after five years through ten years	159,099
Due after ten years	503,969
Investment securities with no stated maturities	1,956
Amortized Cost	737,485	737,345
Securities Available for Sale, Fair Value
Due in one year or less	5,144
Due after one year through three years	34,347
Due after three years through five years	33,647
Due after five years through ten years	161,551
Due after ten years	510,626
Investment securities with no stated maturities	1,984
Fair Value	747,299	742,846
Securities Held to Maturity, Amortized Cost
Due in one year or less	2,880
Due after one year through three years	4,240
Due after three years through five years	6,571
Due after five years through ten years	17,277
Due after ten years	4,457
Investment securities with no stated maturities	0
Amortized Cost	35,425	35,814
Securities Held to Maturity, Fair Value
Due in one year or less	2,889
Due after one year through three years	4,280
Due after three years through five years	6,899
Due after five years through ten years	18,086
Due after ten years	4,479
Investment securities with no stated maturities	0
Fair Value	$36,633	$36,874

Investment_Securities_Unrealiz

Investment Securities - Unrealized Losses (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	$137,878	$213,832
12 Months or Longer	0	0
Total	137,878	213,832
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses
Less than 12 Months	-1,065	-1,714
12 Months or Longer	0	0
Total	-1,065	-1,714
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	4,664	5,307
12 Months or Longer	0	0
Total	4,664	5,307
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrecognized Losses
Less than 12 Months	-147	-189
12 Months or Longer	0	0
Total	-147	-189
U.S. Treasury and U.S. Government-sponsored agencies
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months		3,567
12 Months or Longer		0
Total		3,567
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses
Less than 12 Months		-31
12 Months or Longer		0
Total		-31
Municipal securities
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	23,537	25,176
12 Months or Longer	0	0
Total	23,537	25,176
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses
Less than 12 Months	-156	-184
12 Months or Longer	0	0
Total	-156	-184
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	1,554	2,196
12 Months or Longer	0	0
Total	1,554	2,196
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrecognized Losses
Less than 12 Months	-12	-11
12 Months or Longer	0	0
Total	-12	-11
U.S. Government-sponsored agencies
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	110,318	182,970
12 Months or Longer	0	0
Total	110,318	182,970
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses
Less than 12 Months	-899	-1,475
12 Months or Longer	0	0
Total	-899	-1,475
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	2,556	2,553
12 Months or Longer	0	0
Total	2,556	2,553
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrecognized Losses
Less than 12 Months	-48	-74
12 Months or Longer	0	0
Total	-48	-74
Corporate obligations
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	4,023	2,119
12 Months or Longer	0	0
Total	4,023	2,119
Available-for-sale Securities, Continuous Unrealized Loss Position, Unrealized Losses
Less than 12 Months	-10	-24
12 Months or Longer	0	0
Total	-10	-24
Private residential collateralized mortgage obligations
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value
Less than 12 Months	554	558
12 Months or Longer	0	0
Total	554	558
Held-to-maturity Securities, Continuous Unrealized Loss Position, Unrecognized Losses
Less than 12 Months	-87	-104
12 Months or Longer	0	0
Total	($87)	($104)

Investment_Securities_Impairme

Investment Securities - Impairment Activity on Held to Maturity Securities(Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of other-than-temporary impairment losses investment securities
Life-to-Date Gross Other-Than-Temporary Impairments, Beginning Balance	$2,648	$2,603
Life-to-Date Gross Other-Than-Temporary Impairments, Ending Balance	2,648	2,611
Life-to-Date Other-Than-Temporary Impairments Included in Other Comprehensive Income, Beginning Balance	1,152	1,152
Life-to-Date Other-Than-Temporary Impairments Included in Other Comprehensive Income, Ending Balance	1,152	1,152
Life-to-Date Net Other-Than-Temporary Impairments Included in Earnings, Beginning Balance	1,496	1,451
Life-to-Date Net Other-Than-Temporary Impairments Included in Earnings, Subsequent impairments	0	8
Life-to-Date Net Other-Than-Temporary Impairments Included in Earnings, Ending Balance	1,496	1,459
Subsequent impairments
Schedule of other-than-temporary impairment losses investment securities
Life-to-Date Gross Other-Than-Temporary Impairments, Subsequent impairments	0	8
Life-to-Date Other-Than-Temporary Impairments Included in Other Comprehensive Income, Subsequent impairments	0	0
Life-to-Date Net Other-Than-Temporary Impairments Included in Earnings, Subsequent impairments	$0	$8

Investment_Securities_Amortize

Investment Securities - Amortized Cost and Fair Value (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	$216,831	$213,441
Fair Value	221,598	217,624
Washington and Oregon state to secure public deposits
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	159,797	150,507
Fair Value	163,456	153,785
Federal Reserve Bank of San Francisco and FHLB to secure borrowing arrangements
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	516	4,430
Fair Value	517	4,460
Repurchase agreements
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	41,729	43,676
Fair Value	42,723	44,457
Other securities pledged
Scheduled of amortized cost and fair value of securities pledged as collateral
Amortized Cost	14,789	14,828
Fair Value	$14,902	$14,922

Investment_Securities_Details_

Investment Securities (Details Textual) (USD $)	3 Months Ended
Investment Securities (Details Textual) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Securities classified as trading	$0		$0
Average prepayment rate (percent)		6.00%
Discount interest rate (percent)		6.70%
OTTI, unrealized losses	0
Pledge securities, carrying value	$220,400,000		$216,700,000
Private residential collateralized mortgage obligations
Investment Holdings [Line Items]
Mortgage backed securities evaluation non temporary decline number (securities)	0	2

Noncovered_Loans_Receivable_Lo

Noncovered Loans Receivable - Loan Origination/Risk Management (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
	Segment	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	$2,288,621	$2,252,014
Allowance for loan losses	-27,816	-27,729	-29,387	-28,824
One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	69,719	69,530
Allowance for loan losses	-1,242	-1,200	-1,121	-1,100
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	1,847,245	1,809,075
Allowance for loan losses	-20,060	-20,186	-21,966	-22,853
Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	578,752	570,453
Allowance for loan losses	-9,858	-10,553	-12,277	-13,478
Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	613,587	594,986
Allowance for loan losses	-4,173	-4,095	-4,463	-4,049
Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	654,906	643,636
Allowance for loan losses	-6,029	-5,538	-5,226	-5,326
Real Estate Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	106,381	114,115
Allowance for loan losses	-2,570	-2,758	-3,962	-2,673
Real Estate Construction and Land Development \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	45,331	49,195
Allowance for loan losses	-1,565	-1,786	-1,979	-1,720
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	61,050	64,920
Allowance for loan losses	-1,005	-972	-1,983	-953
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	265,276	259,294
Allowance for loan losses	-3,175	-2,769	-1,690	-1,597
Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan segments	4
Maximum percentage consumer loans (percent)	80.00%
Gross noncovered loans receivable	2,171,000	2,125,814
Net deferred loan fees	-307	-937
Noncovered loans receivable, net	2,170,693	2,124,877
Allowance for loan losses	-22,317	-22,153
Noncovered loans receivable, net of allowance for loan losses	2,148,376	2,102,724
Noncovered Loans \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum percent of appraised value or underlying collateral mortgage (not to exceed 80%) residential loans (percent)	80.00%
Gross noncovered loans receivable	63,944	63,540
Noncovered Loans \| Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	1,749,188	1,703,842
Noncovered Loans \| Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	559,363	551,343
Noncovered Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	558,198	535,742
Noncovered Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	631,627	616,757
Noncovered Loans \| Real Estate Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	100,891	108,109
Noncovered Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	42,993	46,749
Noncovered Loans \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	57,898	61,360
Noncovered Loans \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered loans receivable	$256,977	$250,323
Noncovered Loans \| Minimum \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan term	15 years
Noncovered Loans \| Maximum \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan term	30 years

Noncovered_Loans_Receivable_Co

Noncovered Loans Receivable - Concentrations of Credit (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
	Loan	Loan
Receivables [Abstract]
Concentration of loans greater than 10%	0	0
Percentage of concentrations of loans in any industry (in excess of 10%) (percent)	10.00%	10.00%

Noncovered_Loans_Receivable_Cr

Noncovered Loans Receivable - Credit Quality Indicators (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Total	$2,288,621,000	$2,252,014,000
One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total	69,719,000	69,530,000
Commercial Business
Financing Receivable, Recorded Investment [Line Items]
Total	1,847,245,000	1,809,075,000
Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total	578,752,000	570,453,000
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total	613,587,000	594,986,000
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total	654,906,000	643,636,000
Real Estate Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Total	106,381,000	114,115,000
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total	45,331,000	49,195,000
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment [Line Items]
Total	61,050,000	64,920,000
Consumer
Financing Receivable, Recorded Investment [Line Items]
Total	265,276,000	259,294,000
Noncovered Loans
Financing Receivable, Recorded Investment [Line Items]
Pass	2,051,557,000	1,985,381,000
OAEM	51,409,000	59,368,000
Substandard	67,720,000	80,741,000
Doubtful	314,000	324,000
Total	2,171,000,000	2,125,814,000
Potential problem loans receivable	100,400,000	117,300,000
Government guaranteed potential problem loans	576,000	2,000,000
Noncovered Loans \| One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Pass	61,534,000	61,185,000
OAEM	313,000	315,000
Substandard	2,097,000	2,040,000
Doubtful	0	0
Total	63,944,000	63,540,000
Noncovered Loans \| Commercial Business
Financing Receivable, Recorded Investment [Line Items]
Pass	1,653,403,000	1,589,979,000
OAEM	47,741,000	55,076,000
Substandard	47,730,000	58,463,000
Doubtful	314,000	324,000
Total	1,749,188,000	1,703,842,000
Noncovered Loans \| Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Pass	526,439,000	509,483,000
OAEM	12,784,000	14,487,000
Substandard	19,826,000	27,049,000
Doubtful	314,000	324,000
Total	559,363,000	551,343,000
Noncovered Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Pass	526,401,000	496,234,000
OAEM	18,660,000	22,946,000
Substandard	13,137,000	16,562,000
Doubtful	0	0
Total	558,198,000	535,742,000
Noncovered Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Pass	600,563,000	584,262,000
OAEM	16,297,000	17,643,000
Substandard	14,767,000	14,852,000
Doubtful	0	0
Total	631,627,000	616,757,000
Noncovered Loans \| Real Estate Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Pass	86,789,000	91,381,000
OAEM	3,355,000	3,977,000
Substandard	10,747,000	12,751,000
Doubtful	0	0
Total	100,891,000	108,109,000
Noncovered Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Pass	32,778,000	34,356,000
OAEM	3,355,000	3,977,000
Substandard	6,860,000	8,416,000
Doubtful	0	0
Total	42,993,000	46,749,000
Noncovered Loans \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment [Line Items]
Pass	54,011,000	57,025,000
OAEM	0	0
Substandard	3,887,000	4,335,000
Doubtful	0	0
Total	57,898,000	61,360,000
Noncovered Loans \| Consumer
Financing Receivable, Recorded Investment [Line Items]
Pass	249,831,000	242,836,000
OAEM	0	0
Substandard	7,146,000	7,487,000
Doubtful	0	0
Total	$256,977,000	$250,323,000

Noncovered_Loans_Receivable_No

Noncovered Loans Receivable - Nonaccrual Loans (Details) (Noncovered Nonaccrual Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	$7,452,000	$7,510,000
Nonaccrual originated loans guaranteed by governmental agencies	1,700,000	1,600,000
One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	0	0
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	4,918,000	4,719,000
Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	3,852,000	3,463,000
Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	1,066,000	1,163,000
Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	0	93,000
Real Estate Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	2,513,000	2,652,000
Real Estate Construction and Land Development \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	2,513,000	2,652,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross noncovered nonaccrual loans	$21,000	$139,000

Noncovered_Loans_Receivable_Pa

Noncovered Loans Receivable - Past Due Loans (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	$2,288,621	$2,252,014
One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	69,719	69,530
Commercial Business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	1,847,245	1,809,075
Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	578,752	570,453
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	613,587	594,986
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	654,906	643,636
Real Estate Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	106,381	114,115
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	45,331	49,195
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	61,050	64,920
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	265,276	259,294
Noncovered Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	16,710	11,102
Current	2,154,290	2,114,712
Total	2,171,000	2,125,814
90 Days or More and Still Accruing	0	0
Noncovered Loans \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,643	6,329
Noncovered Loans \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,067	4,773
Noncovered Loans \| One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	391	200
Current	63,553	63,340
Total	63,944	63,540
90 Days or More and Still Accruing	0	0
Noncovered Loans \| One-to-four Family Residential \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	391	200
Noncovered Loans \| One-to-four Family Residential \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Noncovered Loans \| Commercial Business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,414	5,791
Current	1,737,774	1,698,051
Total	1,749,188	1,703,842
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Commercial Business \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,311	3,654
Noncovered Loans \| Commercial Business \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,103	2,137
Noncovered Loans \| Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,851	4,465
Current	555,512	546,878
Total	559,363	551,343
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Commercial Business \| Commercial and Industrial \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,081	2,503
Noncovered Loans \| Commercial Business \| Commercial and Industrial \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,770	1,962
Noncovered Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,396	1,138
Current	555,802	534,604
Total	558,198	535,742
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Commercial Business \| Owner-occupied Commercial Real Estate \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,063	1,038
Noncovered Loans \| Commercial Business \| Owner-occupied Commercial Real Estate \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	333	100
Noncovered Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,167	188
Current	626,460	616,569
Total	631,627	616,757
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,167	113
Noncovered Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	75
Noncovered Loans \| Real Estate Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,724	2,573
Current	98,167	105,536
Total	100,891	108,109
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Real Estate Construction and Land Development \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	760	62
Noncovered Loans \| Real Estate Construction and Land Development \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,964	2,511
Noncovered Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,724	2,197
Current	40,269	44,552
Total	42,993	46,749
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	760	62
Noncovered Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,964	2,135
Noncovered Loans \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	376
Current	57,898	60,984
Total	57,898	61,360
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Noncovered Loans \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	376
Noncovered Loans \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,181	2,538
Current	254,796	247,785
Total	256,977	250,323
90 Days or More and Still Accruing	0	0
Noncovered Loans \| Consumer \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,181	2,413
Noncovered Loans \| Consumer \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$0	$125

Noncovered_Loans_Receivable_Im

Noncovered Loans Receivable - Impaired Loans (Details) (Noncovered Loans, USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	$7,159,000		$6,293,000
Recorded Investment With Specific Valuation Allowance	16,593,000		19,863,000
Total Recorded Investment	23,752,000		26,156,000
Unpaid Contractual Principal Balance	25,658,000		26,882,000
Related Specific Valuation Allowance	2,662,000		3,235,000
Government guarantee of originated impaired loans	2,200,000		2,400,000
Average Recorded Investment on Impaired Loans	24,954,000	34,645,000
Nonaccrual
Financing Receivable, Impaired [Line Items]
Interest income recognized on impaired loans	0	0
Restructured Performing
Financing Receivable, Impaired [Line Items]
Interest income recognized on impaired loans	196,000	247,000
One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	244,000		245,000
Total Recorded Investment	244,000		245,000
Unpaid Contractual Principal Balance	244,000		245,000
Related Specific Valuation Allowance	75,000		75,000
Average Recorded Investment on Impaired Loans	244,000	380,000
Commercial Business
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	4,570,000		3,953,000
Recorded Investment With Specific Valuation Allowance	13,198,000		15,173,000
Total Recorded Investment	17,768,000		19,126,000
Unpaid Contractual Principal Balance	19,103,000		19,409,000
Related Specific Valuation Allowance	2,209,000		2,474,000
Average Recorded Investment on Impaired Loans	18,447,000	25,520,000
Commercial Business \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,129,000		1,134,000
Recorded Investment With Specific Valuation Allowance	6,199,000		7,906,000
Total Recorded Investment	8,328,000		9,040,000
Unpaid Contractual Principal Balance	9,341,000		9,349,000
Related Specific Valuation Allowance	797,000		1,325,000
Average Recorded Investment on Impaired Loans	8,684,000	14,935,000
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		360,000
Recorded Investment With Specific Valuation Allowance	2,339,000		2,421,000
Total Recorded Investment	2,339,000		2,781,000
Unpaid Contractual Principal Balance	2,669,000		2,781,000
Related Specific Valuation Allowance	629,000		684,000
Average Recorded Investment on Impaired Loans	2,560,000	3,189,000
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,441,000		2,459,000
Recorded Investment With Specific Valuation Allowance	4,660,000		4,846,000
Total Recorded Investment	7,101,000		7,305,000
Unpaid Contractual Principal Balance	7,093,000		7,279,000
Related Specific Valuation Allowance	783,000		465,000
Average Recorded Investment on Impaired Loans	7,203,000	7,396,000
Real Estate Construction and Land Development
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,589,000		2,307,000
Recorded Investment With Specific Valuation Allowance	3,026,000		4,273,000
Total Recorded Investment	5,615,000		6,580,000
Unpaid Contractual Principal Balance	6,184,000		7,020,000
Related Specific Valuation Allowance	356,000		630,000
Average Recorded Investment on Impaired Loans	6,097,000	7,856,000
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,589,000		2,307,000
Recorded Investment With Specific Valuation Allowance	994,000		2,217,000
Total Recorded Investment	3,583,000		4,524,000
Unpaid Contractual Principal Balance	4,152,000		4,964,000
Related Specific Valuation Allowance	152,000		396,000
Average Recorded Investment on Impaired Loans	4,053,000	5,591,000
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	2,032,000		2,056,000
Total Recorded Investment	2,032,000		2,056,000
Unpaid Contractual Principal Balance	2,032,000		2,056,000
Related Specific Valuation Allowance	204,000		234,000
Average Recorded Investment on Impaired Loans	2,044,000	2,265,000
Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		33,000
Recorded Investment With Specific Valuation Allowance	125,000		172,000
Total Recorded Investment	125,000		205,000
Unpaid Contractual Principal Balance	127,000		208,000
Related Specific Valuation Allowance	22,000		56,000
Average Recorded Investment on Impaired Loans	$166,000	$889,000

Noncovered_Loans_Receivable_TD

Noncovered Loans Receivable - TDR Loans, Recorded Investment and Allowance (Details) (Noncovered Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
Noncovered Loans
Financing Receivable, Modifications [Line Items]
Performing TDRs, Noncovered TDRs	$16,736,000	$18,764,000
Nonaccrual TDRs, Noncovered TDRs	5,325,000	5,010,000
Performing TDRs, Allowance for loan losses on noncovered TDRs	1,989,000	1,908,000
Nonaccrual TDRs, Allowance for loan losses on noncovered TDRs	497,000	1,033,000
Unfunded commitments related to credits classified as noncovered TDRs	$1,000,000	$1,800,000

Noncovered_Loans_Receivable_Mo

Noncovered Loans Receivable - Modified TDRs (Details) (Noncovered Loans, USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	contract	contract	Dec. 31, 2014
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	$2,662,000		$3,235,000
One-to-four Family Residential
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	75,000		75,000
Commercial Business
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	2,209,000		2,474,000
Commercial Business \| Commercial and Industrial
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	797,000		1,325,000
Commercial Business \| Non-owner Occupied Commercial Real Estate
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	783,000		465,000
Commercial Business \| Owner-occupied Commercial Real Estate
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	629,000		684,000
Real Estate Construction and Land Development
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	356,000		630,000
Real Estate Construction and Land Development \| One-to-four Family Residential
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	152,000		396,000
Consumer
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	22,000		56,000
Troubled Debt Restructured Loans
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	13	14
Outstanding Principal Balance	3,628,000	2,976,000
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	2	4
Outstanding Principal Balance	942,000	802,000
Number of contracts with no modifications	6	4
Total outstanding principal balance with no prior modifications	925,000	761,000
Troubled Debt Restructured Loans \| Commercial Business
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	8	10
Outstanding Principal Balance	1,069,000	2,564,000
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	1	4
Outstanding Principal Balance	77,000	802,000
Troubled Debt Restructured Loans \| Commercial Business \| Commercial and Industrial
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	8	9
Outstanding Principal Balance	1,069,000	2,213,000
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	1	3
Outstanding Principal Balance	77,000	799,000
Troubled Debt Restructured Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	0	1
Outstanding Principal Balance	0	3,000
Troubled Debt Restructured Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	0	1
Outstanding Principal Balance	0	351,000
Troubled Debt Restructured Loans \| Real Estate Construction and Land Development
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	4	1
Outstanding Principal Balance	2,520,000	190,000
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	1
Troubled Debt Restructured Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	4	1
Outstanding Principal Balance	2,520,000	190,000
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Number of Contracts	1	0
Outstanding Principal Balance	865,000	0
Initial advance at the time of modification	0	0
Troubled Debt Restructured Loans \| Consumer
Noncovered Loans Modified as TDRs [Abstract]
Number of Contracts	1	3
Outstanding Principal Balance	39,000	222,000
Troubled Debt Restructured Loans \| Finance Receivable Modified Subsequent Default
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	8,000
Troubled Debt Restructured Loans \| Modified During the Quarter
Noncovered Loans Modified, Subsequently Defaulted [Abstract]
Related specific valuation allowance for TDRs	$286,000

Noncovered_Loans_Receivable_No1

Noncovered Loans Receivable - Noncovered Purchased Credit Impaired Loans (Details) (Noncovered PCI Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	$57,870
One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,229
Commercial Business
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	42,653
Commercial Business \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	17,162
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	14,448
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	11,043
Real Estate Construction and Land Development
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	6,308
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	3,816
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,492
Consumer
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	6,680
Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	57,870	61,909
Receivables Acquired with Deteriorated Credit Quality \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	67,081	72,422
Receivables Acquired with Deteriorated Credit Quality \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,229	2,235
Receivables Acquired with Deteriorated Credit Quality \| One-to-four Family Residential \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,250	2,269
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	42,653	45,433
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	48,862	52,993
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	17,162	18,040
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Commercial and Industrial \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	20,400	22,144
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	14,448	16,208
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Owner-occupied Commercial Real Estate \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	15,980	18,165
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	11,043	11,185
Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	12,482	12,684
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	6,308	7,186
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	10,395	11,177
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	3,816	4,223
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| One-to-four Family Residential \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	8,123	8,456
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,492	2,963
Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,272	2,721
Receivables Acquired with Deteriorated Credit Quality \| Consumer
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	6,680	7,055
Receivables Acquired with Deteriorated Credit Quality \| Consumer \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	$5,574	$5,983

Noncovered_Loans_Receivable_Ch

Noncovered Loans Receivable - Change in Accretable Yield (Details) (PCI Noncovered Loans, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
PCI Noncovered Loans
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at the beginning of the period	$12,572	$7,714
Accretion	-1,012	-828
Disposals and other	-284	-633
Change in accretable yield	2,739	836
Balance at the end of the period	$14,015	$7,089

Covered_Loans_Receivable_Risk_

Covered Loans Receivable - Risk Management (Details) (Covered Loans, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
	Segment	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	$117,621	$126,200
Allowance for loan losses	-5,499	-5,576
Covered loans receivable, net	112,122	120,624
Number of loan segments	4
Recorded investment of purchased covered loans no longer covered under FDIC loss sharing agreements	1,200	872,000
One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	5,775	5,990
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	98,057	105,233
Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	19,389	19,110
Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	55,389	59,244
Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	23,279	26,879
Real Estate Construction and Land Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	5,490	6,006
Real Estate Construction and Land Development \| One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	2,338	2,446
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	3,152	3,560
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered loans receivable, net	$8,299	$8,971

Covered_Loans_Receivable_Credi

Covered Loans Receivable - Credit Quality Indicators (Details) (Covered Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Pass	$75,719	$77,690
OAEM	4,124	5,553
Substandard	34,224	40,370
Doubtful	3,554	2,587
Total	117,621	126,200
One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Pass	5,432	5,414
OAEM	0	425
Substandard	343	151
Doubtful		0
Total	5,775	5,990
Commercial Business
Financing Receivable, Recorded Investment [Line Items]
Pass	60,309	61,310
OAEM	4,124	5,128
Substandard	30,070	36,208
Doubtful	3,554	2,587
Total	98,057	105,233
Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Pass	12,254	11,297
OAEM	105	131
Substandard	4,850	5,442
Doubtful	2,180	2,240
Total	19,389	19,110
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Pass	39,628	40,357
OAEM	3,983	4,957
Substandard	11,529	13,583
Doubtful	249	347
Total	55,389	59,244
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Pass	8,427	9,656
OAEM	36	40
Substandard	13,691	17,183
Doubtful	1,125	0
Total	23,279	26,879
Real Estate Construction and Land Development
Financing Receivable, Recorded Investment [Line Items]
Pass	3,609	3,936
OAEM	0	0
Substandard	1,881	2,070
Doubtful	0	0
Total	5,490	6,006
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment [Line Items]
Pass	2,075	2,178
OAEM	0	0
Substandard	263	268
Doubtful	0	0
Total	2,338	2,446
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment [Line Items]
Pass	1,534	1,758
OAEM	0	0
Substandard	1,618	1,802
Doubtful	0	0
Total	3,152	3,560
Consumer
Financing Receivable, Recorded Investment [Line Items]
Pass	6,369	7,030
OAEM	0	0
Substandard	1,930	1,941
Doubtful	0	0
Total	$8,299	$8,971

Covered_Loans_Receivable_Nonac

Covered Loans Receivable - Nonaccrual Loans (Details) (Covered Nonaccrual Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	$3,884	$4,062
One-to-four Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	174	179
Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	3,704	3,877
Commercial Business \| Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	2,180	2,321
Commercial Business \| Owner-occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	1,111	1,132
Commercial Business \| Non-owner Occupied Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	413	424
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross covered nonaccrual loans	$6	$6

Covered_Loans_Receivable_Past_

Covered Loans Receivable - Past Due Loans (Details) (Covered Loans, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$5,524	$10,509
Current	112,097	115,691
Total	117,621	126,200
90 Days or More and Still Accruing	0	0
30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	826	5,173
90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,698	5,336
One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	111	112
Current	5,664	5,878
Total	5,775	5,990
90 Days or More and Still Accruing	0	0
One-to-four Family Residential \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	111	112
One-to-four Family Residential \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial Business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,408	8,919
Current	93,649	96,314
Total	98,057	105,233
90 Days or More and Still Accruing	0	0
Commercial Business \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	575	4,620
Commercial Business \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,833	4,299
Commercial Business \| Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,025	3,425
Current	16,364	15,685
Total	19,389	19,110
90 Days or More and Still Accruing	0	0
Commercial Business \| Commercial and Industrial \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	222	2,262
Commercial Business \| Commercial and Industrial \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,803	1,163
Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	923	3,325
Current	54,466	55,919
Total	55,389	59,244
90 Days or More and Still Accruing	0	0
Commercial Business \| Owner-occupied Commercial Real Estate \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	353	645
Commercial Business \| Owner-occupied Commercial Real Estate \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	570	2,680
Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	460	2,169
Current	22,819	24,710
Total	23,279	26,879
90 Days or More and Still Accruing	0	0
Commercial Business \| Non-owner Occupied Commercial Real Estate \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	1,713
Commercial Business \| Non-owner Occupied Commercial Real Estate \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	460	456
Real Estate Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	129	488
Current	5,361	5,518
Total	5,490	6,006
90 Days or More and Still Accruing	0	0
Real Estate Construction and Land Development \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	178
Real Estate Construction and Land Development \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	129	310
Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	89	268
Current	2,249	2,178
Total	2,338	2,446
90 Days or More and Still Accruing	0	0
Real Estate Construction and Land Development \| One-to-four Family Residential \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	178
Real Estate Construction and Land Development \| One-to-four Family Residential \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	89	90
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	40	220
Current	3,112	3,340
Total	3,152	3,560
90 Days or More and Still Accruing	0	0
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	40	220
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	876	990
Current	7,423	7,981
Total	8,299	8,971
90 Days or More and Still Accruing	0	0
Consumer \| 30-89 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	140	263
Consumer \| 90 Days or Greater
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$736	$727

Covered_Loans_Receivable_Impai

Covered Loans Receivable - Impaired Loans (Details) (USD $)	3 Months Ended
Covered Loans Receivable - Impaired Loans (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Covered Impaired Loans
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	$2,180,000		$2,240,000
Recorded Investment With Specific Valuation Allowance	2,012,000		1,835,000
Total Recorded Investment	4,192,000		4,075,000
Unpaid Contractual Principal Balance	5,655,000		5,482,000
Related Specific Valuation Allowance	409,000		423,000
Average Recorded Investment on Impaired Loans	4,134,000	4,152,000
Covered Impaired Loans \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Average Recorded Investment on Impaired Loans	0	225,000
Covered Impaired Loans \| Commercial Business
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,180,000		2,240,000
Recorded Investment With Specific Valuation Allowance	1,832,000		1,650,000
Total Recorded Investment	4,012,000		3,890,000
Unpaid Contractual Principal Balance	5,467,000		5,292,000
Related Specific Valuation Allowance	359,000		370,000
Average Recorded Investment on Impaired Loans	3,951,000	3,920,000
Covered Impaired Loans \| Commercial Business \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	2,180,000		2,240,000
Recorded Investment With Specific Valuation Allowance	0		94,000
Total Recorded Investment	2,180,000		2,334,000
Unpaid Contractual Principal Balance	3,577,000		3,696,000
Related Specific Valuation Allowance	0		9,000
Average Recorded Investment on Impaired Loans	2,257,000	3,706,000
Covered Impaired Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	1,419,000		1,132,000
Total Recorded Investment	1,419,000		1,132,000
Unpaid Contractual Principal Balance	1,452,000		1,156,000
Related Specific Valuation Allowance	302,000		295,000
Average Recorded Investment on Impaired Loans	1,276,000	214,000
Covered Impaired Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	413,000		424,000
Total Recorded Investment	413,000		424,000
Unpaid Contractual Principal Balance	438,000		440,000
Related Specific Valuation Allowance	57,000		66,000
Average Recorded Investment on Impaired Loans	418,000	0
Covered Impaired Loans \| Real Estate Construction and Land Development
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	174,000		179,000
Total Recorded Investment	174,000		179,000
Unpaid Contractual Principal Balance	180,000		182,000
Related Specific Valuation Allowance	48,000		51,000
Average Recorded Investment on Impaired Loans	177,000	0
Covered Impaired Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	174,000		179,000
Total Recorded Investment	174,000		179,000
Unpaid Contractual Principal Balance	180,000		182,000
Related Specific Valuation Allowance	48,000		51,000
Average Recorded Investment on Impaired Loans	177,000	0
Covered Impaired Loans \| Consumer
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Specific Valuation Allowance	0		0
Recorded Investment With Specific Valuation Allowance	6,000		6,000
Total Recorded Investment	6,000		6,000
Unpaid Contractual Principal Balance	8,000		8,000
Related Specific Valuation Allowance	2,000		2,000
Average Recorded Investment on Impaired Loans	6,000	7,000
Nonaccrual \| Covered Loans
Financing Receivable, Impaired [Line Items]
Interest income recognized on impaired loans	0	0
Troubled Debt Restructured Loans \| Covered Loans
Financing Receivable, Impaired [Line Items]
Interest income recognized on impaired loans	$3,000	$48,000

Covered_Loans_Receivable_Troub

Covered Loans Receivable - Troubled Debt Restructured Loans (Details) (Covered Loans, USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Contract	contract	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Performing TDRs, Covered TDRs	$10,419,000		$10,289,000
Nonaccrual TDRs, Covered TDRs	2,186,000		2,246,000
Performing TDRs, Allowance for loan losses on covered TDRs	28,000		1,000
Nonaccrual TDRs, Allowance for loan losses on covered TDRs	2,000		2,000
Commercial and Industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Troubled Debt Restructured Loans
Financing Receivable, Modifications [Line Items]
Unfunded commitments related to credits classified as covered TDRs	0		0
Number of Contracts	3	1
Outstanding Principal Balance	539,000	3,626,000
Number of loans modified that subsequently defaulted		0
Troubled Debt Restructured Loans \| Consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	0
Outstanding Principal Balance	105,000	0
Troubled Debt Restructured Loans \| Commercial Business
Financing Receivable, Modifications [Line Items]
Number of Contracts	2	1
Outstanding Principal Balance	434,000	3,626,000
Troubled Debt Restructured Loans \| Commercial Business \| Commercial and Industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Outstanding Principal Balance	126,000	3,626,000
Number of loans modified that subsequently defaulted	1
Outstanding principal balance	2,200,000
Troubled Debt Restructured Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	0
Outstanding Principal Balance	308,000	0
Troubled Debt Restructured Loans \| Finance Receivable Modified Subsequent Default
Financing Receivable, Modifications [Line Items]
Related specific valuation allowance for TDRs	$0

Covered_Loans_Receivable_Cover

Covered Loans Receivable - Covered Purchased Credit Impaired Loans (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Recorded investment balance which are no longer covered under the FDIC shared-loss agreements	$461	$476,000
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	52,418	57,362
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	55,862	62,338
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	3,287	3,478
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| One-to-four Family Residential \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	3,626	3,837
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	43,715	48,057
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	47,424	53,313
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	7,891	7,134
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Commercial and Industrial \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	10,239	9,635
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Owner-occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	17,946	20,666
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Owner-occupied Commercial Real Estate \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	19,782	23,071
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	17,878	20,257
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	17,403	20,607
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,832	3,110
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,016	2,243
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| One-to-four Family Residential
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	1,215	1,308
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| One-to-four Family Residential \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	101	103
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	1,617	1,802
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	1,915	2,140
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Consumer
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	2,584	2,717
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality \| Consumer \| Outstanding Principal
Financing Receivable, Impaired [Line Items]
Recorded investment of PCI loans	$2,796	$2,945

Covered_Loans_Receivable_Accre

Covered Loans Receivable - Accretable Yield (Details) (Covered Loans, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Covered Loans
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at the beginning of the period	$8,520	$9,535
Accretion	-898	-685
Disposal and other	-354	-43
Change in accretable yield	1,042	256
Balance at the end of the period	$8,310	$9,063

Allowance_for_Loan_Losses_Summ

Allowance for Loan Losses - Summary of Changes in Loan Allowance (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of changes in allowance for loan losses
Balance at the beginning of period	$27,729	$28,824
Charge-offs	-1,435	-142
Recoveries of loans previously charged -off	314	247
Provision for loan losses	1,208	458
Balance at the end of period	27,816	29,387
Noncovered Loans
Schedule of changes in allowance for loan losses
Balance at the beginning of period	22,153	22,657
Charge-offs	-1,435	-63
Recoveries of loans previously charged -off	314	247
Provision for loan losses	1,285	-21
Balance at the end of period	22,317	22,820
Covered Loans
Schedule of changes in allowance for loan losses
Balance at the beginning of period	5,576	6,167
Charge-offs	0	-79
Provision for loan losses	-77	479
Balance at the end of period	$5,499	$6,567

Allowance_for_Loan_Losses_Acti

Allowance for Loan Losses - Activity in Allowance for Losses Disaggregated on Basis of Impairment (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	$27,729	$28,824
Charge-offs	-1,435	-142
Recoveries	314	247
Provision for loan losses	1,208	458
Balance at the end of period	27,816	29,387
Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	2,662		3,235
Collectively evaluated for impairment	15,463		14,868
PCI loans	4,192
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period			22,153
Provision for loan losses		-21
Balance at the end of period	22,317		22,153
Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	409		423
Collectively evaluated for impairment	148		148
PCI loans	4,942
Schedule of allowance for loan losses on the basis of impairment method
Provision for loan losses		479
PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			4,050
PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			5,005
One-to-four Family Residential
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	1,200	1,100
Charge-offs	0	0
Recoveries	1	0
Provision for loan losses	41	21
Balance at the end of period	1,242	1,121
One-to-four Family Residential \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	75		75
Collectively evaluated for impairment	580		530
PCI loans	207
One-to-four Family Residential \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	8		8
PCI loans	372
One-to-four Family Residential \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			207
One-to-four Family Residential \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			380
Commercial Business
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	20,186	22,853
Charge-offs	-848	-79
Recoveries	201	232
Provision for loan losses	521	-1,040
Balance at the end of period	20,060	21,966
Commercial Business \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	2,209		2,474
Collectively evaluated for impairment	10,806		10,619
PCI loans	2,904
Commercial Business \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	359		370
Collectively evaluated for impairment	136		128
PCI loans	3,646
Commercial Business \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			2,874
Commercial Business \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			3,721
Commercial Business \| Commercial and Industrial
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	10,553	13,478
Charge-offs	-660	-79
Recoveries	201	232
Provision for loan losses	-236	-1,354
Balance at the end of period	9,858	12,277
Commercial Business \| Commercial and Industrial \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	797		1,325
Collectively evaluated for impairment	6,278		6,449
PCI loans	2,211
Commercial Business \| Commercial and Industrial \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0		9
Collectively evaluated for impairment	116		108
PCI loans	456
Commercial Business \| Commercial and Industrial \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			2,191
Commercial Business \| Commercial and Industrial \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			471
Commercial Business \| Owner-occupied Commercial Real Estate
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	4,095	4,049
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	78	414
Balance at the end of period	4,173	4,463
Commercial Business \| Owner-occupied Commercial Real Estate \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	629		684
Collectively evaluated for impairment	1,756		1,629
PCI loans	330
Commercial Business \| Owner-occupied Commercial Real Estate \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	302		295
Collectively evaluated for impairment	14		14
PCI loans	1,142
Commercial Business \| Owner-occupied Commercial Real Estate \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			330
Commercial Business \| Owner-occupied Commercial Real Estate \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			1,143
Commercial Business \| Non-owner Occupied Commercial Real Estate
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	5,538	5,326
Charge-offs	-188	0
Recoveries	0	0
Provision for loan losses	679	-100
Balance at the end of period	6,029	5,226
Commercial Business \| Non-owner Occupied Commercial Real Estate \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	783		465
Collectively evaluated for impairment	2,772		2,541
PCI loans	363
Commercial Business \| Non-owner Occupied Commercial Real Estate \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	57		66
Collectively evaluated for impairment	6		6
PCI loans	2,048
Commercial Business \| Non-owner Occupied Commercial Real Estate \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			353
Commercial Business \| Non-owner Occupied Commercial Real Estate \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			2,107
Real Estate Construction and Land Development
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	2,758	2,673
Charge-offs	-106	0
Recoveries	0	0
Provision for loan losses	-82	1,289
Balance at the end of period	2,570	3,962
Real Estate Construction and Land Development \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	356		630
Collectively evaluated for impairment	1,075		972
PCI loans	352
Real Estate Construction and Land Development \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	48		51
Collectively evaluated for impairment	0		0
PCI loans	739
Real Estate Construction and Land Development \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			352
Real Estate Construction and Land Development \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			753
Real Estate Construction and Land Development \| One-to-four Family Residential
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	1,786	1,720
Charge-offs	-106	0
Recoveries	0	0
Provision for loan losses	-115	259
Balance at the end of period	1,565	1,979
Real Estate Construction and Land Development \| One-to-four Family Residential \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	152		396
Collectively evaluated for impairment	362		322
PCI loans	264
Real Estate Construction and Land Development \| One-to-four Family Residential \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	48		51
Collectively evaluated for impairment	0		0
PCI loans	739
Real Estate Construction and Land Development \| One-to-four Family Residential \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			264
Real Estate Construction and Land Development \| One-to-four Family Residential \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			753
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	972	953
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	33	1,030
Balance at the end of period	1,005	1,983
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	204		234
Collectively evaluated for impairment	713		650
PCI loans	88
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	0		0
PCI loans	0
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			88
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			0
Consumer
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	2,769	1,597
Charge-offs	-481	-63
Recoveries	112	15
Provision for loan losses	775	141
Balance at the end of period	3,175	1,690
Consumer \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	22		56
Collectively evaluated for impairment	2,233		1,931
PCI loans	729
Consumer \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	2		2
Collectively evaluated for impairment	4		12
PCI loans	185
Consumer \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			617
Consumer \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			151
Unallocated
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of period	816	601
Charge-offs	0	0
Recoveries	0	0
Provision for loan losses	-47	47
Balance at the end of period	769	648
Unallocated \| Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	769		816
PCI loans	0
Unallocated \| Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	0		0
PCI loans	0
Unallocated \| PCI Noncovered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			0
Unallocated \| PCI Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
PCI loans			$0

Allowance_for_Loan_Losses_Reco

Allowance for Loan Losses - Recorded Investment Disaggregated on Basis of Impairment (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	$2,288,621	$2,252,014
One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	69,719	69,530
Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	23,752	26,156
Collectively evaluated for impairment	2,089,378	2,037,749
Total gross loans receivable	2,171,000	2,125,814
Noncovered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	244	245
Collectively evaluated for impairment	61,471	61,060
Total gross loans receivable	63,944	63,540
Covered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	4,192	4,075
Collectively evaluated for impairment	61,011	64,763
Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	52,418	57,362
Covered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,488	2,512
Covered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	3,287	3,478
PCI Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	57,870
PCI Noncovered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	57,870	61,909
PCI Noncovered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,229
PCI Noncovered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,229	2,235
PCI Covered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	52,418
PCI Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		57,362
PCI Covered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	3,287
PCI Covered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		3,478
Commercial Business
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	1,847,245	1,809,075
Commercial Business \| Commercial and Industrial
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	578,752	570,453
Commercial Business \| Owner-occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	613,587	594,986
Commercial Business \| Non-owner Occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	654,906	643,636
Commercial Business \| Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	17,768	19,126
Collectively evaluated for impairment	1,688,767	1,639,283
Total gross loans receivable	1,749,188	1,703,842
Commercial Business \| Noncovered Loans \| Commercial and Industrial
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	8,328	9,040
Collectively evaluated for impairment	533,873	524,263
Total gross loans receivable	559,363	551,343
Commercial Business \| Noncovered Loans \| Owner-occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	2,339	2,781
Collectively evaluated for impairment	541,411	516,753
Total gross loans receivable	558,198	535,742
Commercial Business \| Noncovered Loans \| Non-owner Occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	7,101	7,305
Collectively evaluated for impairment	613,483	598,267
Total gross loans receivable	631,627	616,757
Commercial Business \| Covered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	4,012	3,890
Collectively evaluated for impairment	50,330	53,286
Commercial Business \| Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	43,715	48,057
Commercial Business \| Covered Loans \| Commercial and Industrial
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	2,180	2,334
Collectively evaluated for impairment	9,318	9,642
Commercial Business \| Covered Loans \| Commercial and Industrial \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	7,891	7,134
Commercial Business \| Covered Loans \| Owner-occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	1,419	1,132
Collectively evaluated for impairment	36,024	37,446
Commercial Business \| Covered Loans \| Owner-occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,946	20,666
Commercial Business \| Covered Loans \| Non-owner Occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	413	424
Collectively evaluated for impairment	4,988	6,198
Commercial Business \| Covered Loans \| Non-owner Occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,878	20,257
Commercial Business \| PCI Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	42,653
Commercial Business \| PCI Noncovered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	42,653	45,433
Commercial Business \| PCI Noncovered Loans \| Commercial and Industrial
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,162
Commercial Business \| PCI Noncovered Loans \| Commercial and Industrial \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,162	18,040
Commercial Business \| PCI Noncovered Loans \| Owner-occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	14,448
Commercial Business \| PCI Noncovered Loans \| Owner-occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	14,448	16,208
Commercial Business \| PCI Noncovered Loans \| Non-owner Occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	11,043
Commercial Business \| PCI Noncovered Loans \| Non-owner Occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	11,043	11,185
Commercial Business \| PCI Covered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	43,715
Commercial Business \| PCI Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		48,057
Commercial Business \| PCI Covered Loans \| Commercial and Industrial
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	7,891
Commercial Business \| PCI Covered Loans \| Commercial and Industrial \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		7,134
Commercial Business \| PCI Covered Loans \| Owner-occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,946
Commercial Business \| PCI Covered Loans \| Owner-occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		20,666
Commercial Business \| PCI Covered Loans \| Non-owner Occupied Commercial Real Estate
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	17,878
Commercial Business \| PCI Covered Loans \| Non-owner Occupied Commercial Real Estate \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		20,257
Real Estate Construction and Land Development
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	106,381	114,115
Real Estate Construction and Land Development \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	45,331	49,195
Real Estate Construction and Land Development \| Five or More Family Residential and Commercial Properties
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	61,050	64,920
Real Estate Construction and Land Development \| Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	5,615	6,580
Collectively evaluated for impairment	88,968	94,343
Total gross loans receivable	100,891	108,109
Real Estate Construction and Land Development \| Noncovered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	3,583	4,524
Collectively evaluated for impairment	35,594	38,002
Total gross loans receivable	42,993	46,749
Real Estate Construction and Land Development \| Noncovered Loans \| Five or More Family Residential and Commercial Properties
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	2,032	2,056
Collectively evaluated for impairment	53,374	56,341
Total gross loans receivable	57,898	61,360
Real Estate Construction and Land Development \| Covered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	174	179
Collectively evaluated for impairment	2,484	2,717
Real Estate Construction and Land Development \| Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,832	3,110
Real Estate Construction and Land Development \| Covered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	174	179
Collectively evaluated for impairment	949	959
Real Estate Construction and Land Development \| Covered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	1,215	1,308
Real Estate Construction and Land Development \| Covered Loans \| Five or More Family Residential and Commercial Properties
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,535	1,758
Real Estate Construction and Land Development \| Covered Loans \| Five or More Family Residential and Commercial Properties \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	1,617	1,802
Real Estate Construction and Land Development \| PCI Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	6,308
Real Estate Construction and Land Development \| PCI Noncovered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	6,308	7,186
Real Estate Construction and Land Development \| PCI Noncovered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	3,816
Real Estate Construction and Land Development \| PCI Noncovered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	3,816	4,223
Real Estate Construction and Land Development \| PCI Noncovered Loans \| Five or More Family Residential and Commercial Properties
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,492
Real Estate Construction and Land Development \| PCI Noncovered Loans \| Five or More Family Residential and Commercial Properties \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,492	2,963
Real Estate Construction and Land Development \| PCI Covered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,832
Real Estate Construction and Land Development \| PCI Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		3,110
Real Estate Construction and Land Development \| PCI Covered Loans \| One-to-four Family Residential
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	1,215
Real Estate Construction and Land Development \| PCI Covered Loans \| One-to-four Family Residential \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		1,308
Real Estate Construction and Land Development \| PCI Covered Loans \| Five or More Family Residential and Commercial Properties
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	1,617
Real Estate Construction and Land Development \| PCI Covered Loans \| Five or More Family Residential and Commercial Properties \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		1,802
Consumer
Schedule of loan receivables on the basis of impairment method
Total gross loans receivable	265,276	259,294
Consumer \| Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	125	205
Collectively evaluated for impairment	250,172	243,063
Total gross loans receivable	256,977	250,323
Consumer \| Covered Loans
Schedule of loan receivables on the basis of impairment method
Individually evaluated for impairment	6	6
Collectively evaluated for impairment	5,709	6,248
Consumer \| Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,584	2,717
Consumer \| PCI Noncovered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	6,680
Consumer \| PCI Noncovered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	6,680	7,055
Consumer \| PCI Covered Loans
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment	2,584
Consumer \| PCI Covered Loans \| Receivables Acquired with Deteriorated Credit Quality
Schedule of loan receivables on the basis of impairment method
Purchased impaired covered and non-covered loans collectively evaluated for impairment		$2,717

FDIC_Indemnification_Asset_Det

FDIC Indemnification Asset (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
FDIC Indemnification Asset [Roll Forward]
Balance at the beginning of the period	$1,116	$4,382
Cash payments received or receivable from the FDIC	-231	-376
FDIC share of additional estimated (gains) losses	-69	336
Net amortization	-124	-373
Balance at the end of the period	$692	$3,969

Other_Real_Estate_Owned_Detail

Other Real Estate Owned (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Changes in other real estate owned
Additions	$1,728	$218
Proceeds from dispositions	-589	-520
(Loss) gain on sales, net	-70	27
Valuation adjustment	-330	0
Balance at the end of the period	4,094	4,284	3,355	4,559
Other real estate owned, covered by FDIC loss share	$2,772		$1,177

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Goodwill additions	$0	$0
Goodwill impairment charges	$0	$0
Core Deposits \| Washington Banking
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
Core Deposits \| Valley
Finite-Lived Intangible Assets [Line Items]
Useful life	10 years
Core Deposits \| NCB
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Core Deposits \| Pierce
Finite-Lived Intangible Assets [Line Items]
Useful life	4 years
Core Deposits \| Cowlitz
Finite-Lived Intangible Assets [Line Items]
Useful life	9 years
Core Deposits \| Western Washington Bancorp
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets Intangible Assets (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Finite-lived Intangible Assets [Roll Forward]
Balance at the beginning of the period	$10,889	$1,615
Less: Amortization	527	156
Balance at the end of the period	$10,362	$1,459

Junior_Subordinated_Debentures1

Junior Subordinated Debentures (Details) (USD $)	12 Months Ended
Junior Subordinated Debentures (Details) (USD $)	Dec. 31, 2007	Mar. 31, 2015
Debt Instrument [Line Items]
Issued amount	$25,000,000
Debt term	30 years
Interest rate at end of period		1.82%
Junior Subordinated Debentures
Debt Instrument [Line Items]
Weighted average rate		5.06%
LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.56%

Stockholders_Equity_Reconcilia

Stockholders' Equity - Reconciliation of Weighted Average Shares (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net income:
Net income	$9,779	$2,543
Less: Dividends and undistributed earnings allocated to participating securities	-95	-28
Net income allocated to common shareholders	$9,684	$2,515
Basic:
Weighted average common shares outstanding (in shares)	30,290,200	16,214,735
Less: Restricted stock awards (in shares)	-261,264	-197,697
Total basic weighted average common shares outstanding (in shares)	30,028,936	16,017,038
Diluted:
Basic weighted average common shares outstanding (in shares)	30,028,936	16,017,038
Incremental shares from stock options (in shares)	22,946	9,764
Total diluted weighted average common shares outstanding (in shares)	30,051,882	16,026,802

Stockholders_Equity_Dividends_

Stockholders' Equity - Dividends (Details) (USD $)	0 Months Ended						3 Months Ended
Stockholders' Equity - Dividends (Details) (USD $)	Jan. 28, 2015	Nov. 11, 2014	Oct. 23, 2014	Jul. 24, 2014	Mar. 27, 2014	Jan. 29, 2014	Mar. 31, 2015	Mar. 31, 2014
Stockholders' Equity Note [Abstract]
Declared	28-Jan-15	11-Nov-14	23-Oct-14	24-Jul-14	27-Mar-14	29-Jan-14
Cash Dividend per Share (in usd per share)	$0.10	$0.16	$0.09	$0.09	$0.08	$0.08	$0.10	$0.16
Record Date	10-Feb-15	2-Dec-14	6-Nov-14	7-Aug-14	8-Apr-14	10-Feb-14
Paid Date	24-Feb-15	12-Dec-14	20-Nov-14	21-Aug-14	23-Apr-14	24-Feb-14

Stockholders_Equity_Shares_Rep

Stockholders' Equity - Shares Repurchased (Details) (USD $)	3 Months Ended		31 Months Ended
Stockholders' Equity - Shares Repurchased (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015
Tenth Plan
Equity, Class of Treasury Stock [Line Items]
Repurchased shares	0	0	704,975
Stock repurchase average share price (in usd per share)	$0	$0	$15.85
Eleventh Plan
Equity, Class of Treasury Stock [Line Items]
Repurchased shares	137,366	0	137,366
Stock repurchase average share price (in usd per share)	$16.10	$0	$16.10

Stockholders_Equity_Details_Te

Stockholders' Equity (Details Textual) (USD $)	3 Months Ended		0 Months Ended
Stockholders' Equity (Details Textual) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Oct. 23, 2014	Aug. 30, 2012
Stockholders Equity (Textual) [Abstract]
Anti-dilutive securities excluded from computation (in shares)	7,037	131,459
Shares repurchased at an average price	9,923	9,298
Withholding taxes average price per share (in usd per share)	$16.31	$17.77
Eleventh Plan
Stockholders Equity (Textual) [Abstract]
Outstanding share percent			5.00%
Outstanding common shares in the plan			1,513,000
Tenth Plan
Stockholders Equity (Textual) [Abstract]
Outstanding share percent				5.00%
Outstanding common shares in the plan				757,000

Details

(Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Increase (Decrease) in Accumulated Other Comprehensive (Loss) Income [Roll Forward]
Balance of AOCI at the beginning of the period	$3,378	($1,162)
Other comprehensive (loss) income before reclassification	3,160	608
Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	-354	-117
Other comprehensive income	2,806	491
Balance of AOCI at the end of the period	6,184	-671
Changes in Fair Value of Available for Sale Securities
Increase (Decrease) in Accumulated Other Comprehensive (Loss) Income [Roll Forward]
Balance of AOCI at the beginning of the period	3,567	-923
Other comprehensive (loss) income before reclassification	3,152	593
Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	-354	-117
Other comprehensive income	2,798	476
Balance of AOCI at the end of the period	6,365	-447
Accretion of Other-than-temporary Impairment on Held-to-maturity Securities
Increase (Decrease) in Accumulated Other Comprehensive (Loss) Income [Roll Forward]
Balance of AOCI at the beginning of the period	-189	-239
Other comprehensive (loss) income before reclassification	8	15
Amounts reclassified from AOCI for gain on sale of investment securities available for sale included in net income	0	0
Other comprehensive income	8	15
Balance of AOCI at the end of the period	($181)	($224)

StockBased_Compensation_Stock_

Stock-Based Compensation - Stock Option Activity (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Shares
Outstanding at beginning of period (in shares)	156,407	194,482
Granted (in shares)	0	0
Exercised (in shares)	-37,437	-4,492
Forfeited or expired (in shares)	-7,441	-6,055
Outstanding at end of period (in shares)	111,529	183,935
Vested and expected to vest at end of period (in shares)	111,529
Exercisable at end of period (in shares)	111,529
Weighted-Average Exercise Price
Outstanding at beginning of period (in usd per share)	$13.59	$15.82
Granted (in usd per share)	$0	$0
Exercised (in usd per share)	$11.91	$12.70
Forfeited or expired (in usd per share)	$15.08	$19.76
Outstanding at end of period (in usd per share)	$14.06	$15.77
Vested and expected to vest at end of period (in usd per share)	$14.06
Exercisable at end of period (in usd per share)	$14.06
Weighted-Average Remaining Contractual Term, Outstanding	3 years 2 months 1 day	3 years 2 months 19 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest	3 years 2 months 1 day
Weighted-Average Remaining Contractual Term, Exercisable	3 years 2 months 1 day
Aggregate Intrinsic Value, Outstanding	$353	$503
Aggregate Intrinsic Value, Vested and expected to vest	353
Aggregate Intrinsic Value, Exercisable	$353

StockBased_Compensation_Restri

Stock-Based Compensation - Restricted and Unrestricted Stock Award Activity (Details) (Restricted and Unrestricted Stock, USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restricted and Unrestricted Stock
Shares
Nonvested at beginning of period (in shares)	238,669	202,939
Granted (in shares)	90,627	6,407
Vested (in shares)	-32,699	-30,176
Forfeited (in shares)	-2,022	-811
Nonvested at end of period (in shares)	294,575	178,359
Weighted-Average Grant Date Fair Value
Nonvested at beginning of period (in usd per share)	$15.20	$14.29
Granted (in usd per share)	$16.28	$17.17
Vested (in usd per share)	$14.66	$14.55
Forfeited (in usd per share)	$15.63	$14.67
Nonvested at end of period (in usd per share)	$15.59	$14.35

StockBased_Compensation_Detail

Stock-Based Compensation (Details Textual) (USD $)	3 Months Ended		0 Months Ended
Stock-Based Compensation (Details Textual) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Jul. 24, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remain available for future issuances under stock-based compensation plans	1,292,810
Proceeds from exercise of stock options	$446,000	$57,000
Restricted stock awards issued, net of forfeitures	533,000,000	536,000,000
the Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance			1,500,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation		15,000
Tax benefit		0
Intrinsic value of options exercised	163,000	22,000
Proceeds from exercise of stock options	446,000	57,000
Employee Stock Option \| Option 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested ratably	3 years
Expired ratably	5 years
Employee Stock Option \| Option 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested ratably	4 years
Expired ratably	10 years
Restricted Stock Awards \| Award 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested ratably	5 years
Restricted Stock Awards \| Award 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested ratably	4 years
Restricted and Unrestricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation	348,000	276,000
Tax benefit	122,000	97,000
Unrecognized compensation expense related to non-vested stock option	$3,500,000
Weighted average period	2 years 9 months 18 days

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value Measurement on Recurring Basis (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair value measurements of assets on a recurring basis
Investment securities available for sale	$747,299	$742,846
Recurring
Fair value measurements of assets on a recurring basis
Total	747,299	742,846
Recurring \| U.S. Treasury and U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	22,519	21,427
Recurring \| Municipal securities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	185,831	173,037
Recurring \| U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	530,706	542,399
Recurring \| Corporate obligations
Fair value measurements of assets on a recurring basis
Investment securities available for sale	6,259	4,010
Recurring \| Mutual funds and other equities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	1,984	1,973
Recurring \| Level 1
Fair value measurements of assets on a recurring basis
Total	1,984	1,973
Recurring \| Level 1 \| U.S. Treasury and U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 1 \| Municipal securities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 1 \| U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 1 \| Corporate obligations
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 1 \| Mutual funds and other equities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	1,984	1,973
Recurring \| Level 2
Fair value measurements of assets on a recurring basis
Total	745,315	740,873
Recurring \| Level 2 \| U.S. Treasury and U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	22,519	21,427
Recurring \| Level 2 \| Municipal securities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	185,831	173,037
Recurring \| Level 2 \| U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	530,706	542,399
Recurring \| Level 2 \| Corporate obligations
Fair value measurements of assets on a recurring basis
Investment securities available for sale	6,259	4,010
Recurring \| Level 2 \| Mutual funds and other equities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 3
Fair value measurements of assets on a recurring basis
Total	0	0
Recurring \| Level 3 \| U.S. Treasury and U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 3 \| Municipal securities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 3 \| U.S. Government-sponsored agencies
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 3 \| Corporate obligations
Fair value measurements of assets on a recurring basis
Investment securities available for sale	0	0
Recurring \| Level 3 \| Mutual funds and other equities
Fair value measurements of assets on a recurring basis
Investment securities available for sale	$0	$0

Fair_Value_Measurements_Fair_V1

Fair Value Measurements - Fair Value Measurement on Nonrecurring Basis (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total	$36,633		$36,874
Level 1
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total	0		0
Level 2
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total	36,633		36,874
Level 3
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total	0		0
Nonrecurring
Fair value measurements of assets on a nonrecurring basis
Total, Basis	1,141		2,340
Total assets measured	808		1,919
Total, Net Losses (Gains) Recorded in Earnings	330	692
Nonrecurring \| Level 1
Fair value measurements of assets on a nonrecurring basis
Total assets measured	0		0
Nonrecurring \| Level 2
Fair value measurements of assets on a nonrecurring basis
Total assets measured	0		11
Nonrecurring \| Level 3
Fair value measurements of assets on a nonrecurring basis
Total assets measured	808		1,908
Nonrecurring \| Private Residential Collateralized Mortgage Obligations
Fair value measurements of assets on a nonrecurring basis
Total, Basis			36
Investment securities held to maturity, Total			11
Total, Net Losses (Gains) Recorded in Earnings		8
Nonrecurring \| Private Residential Collateralized Mortgage Obligations \| Level 1
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total			0
Nonrecurring \| Private Residential Collateralized Mortgage Obligations \| Level 2
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total			11
Nonrecurring \| Private Residential Collateralized Mortgage Obligations \| Level 3
Fair value measurements of assets on a nonrecurring basis
Investment securities held to maturity, Total			0
Nonrecurring \| Noncovered Impaired Loans
Fair value measurements of assets on a nonrecurring basis
Total, Basis	84		2,304
Impaired originated loans, Total	81		1,908
Total, Net Losses (Gains) Recorded in Earnings	0	642
Nonrecurring \| Noncovered Impaired Loans \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	81		1,908
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business
Fair value measurements of assets on a nonrecurring basis
Total, Basis	84		161
Impaired originated loans, Total	81		138
Total, Net Losses (Gains) Recorded in Earnings	0	280
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	81		138
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Commercial and Industrial
Fair value measurements of assets on a nonrecurring basis
Total, Basis	84		161
Impaired originated loans, Total	81		138
Total, Net Losses (Gains) Recorded in Earnings	0	369
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Commercial and Industrial \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Commercial and Industrial \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	0		0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Commercial and Industrial \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total	81		138
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Owner-occupied Commercial Real Estate
Fair value measurements of assets on a nonrecurring basis
Total, Basis			0
Impaired originated loans, Total			0
Total, Net Losses (Gains) Recorded in Earnings		-62
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Owner-occupied Commercial Real Estate \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Owner-occupied Commercial Real Estate \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Owner-occupied Commercial Real Estate \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate
Fair value measurements of assets on a nonrecurring basis
Total, Basis			0
Impaired originated loans, Total			0
Total, Net Losses (Gains) Recorded in Earnings		-27
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Commercial Business \| Non-owner Occupied Commercial Real Estate \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development
Fair value measurements of assets on a nonrecurring basis
Total, Basis			2,094
Impaired originated loans, Total			1,725
Total, Net Losses (Gains) Recorded in Earnings		338
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			1,725
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential
Fair value measurements of assets on a nonrecurring basis
Total, Basis			2,094
Impaired originated loans, Total			1,725
Total, Net Losses (Gains) Recorded in Earnings		338
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Real Estate Construction and Land Development \| One-to-four Family Residential \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			1,725
Nonrecurring \| Noncovered Impaired Loans \| Consumer
Fair value measurements of assets on a nonrecurring basis
Total, Basis			49
Impaired originated loans, Total			45
Total, Net Losses (Gains) Recorded in Earnings		24
Nonrecurring \| Noncovered Impaired Loans \| Consumer \| Level 1
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Consumer \| Level 2
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			0
Nonrecurring \| Noncovered Impaired Loans \| Consumer \| Level 3
Fair value measurements of assets on a nonrecurring basis
Impaired originated loans, Total			45
Nonrecurring \| Other Real Estate Owned
Fair value measurements of assets on a nonrecurring basis
Total, Basis	1,057
Other real estate owned, Total	727
Total, Net Losses (Gains) Recorded in Earnings	330
Nonrecurring \| Other Real Estate Owned \| Level 1
Fair value measurements of assets on a nonrecurring basis
Other real estate owned, Total	0
Nonrecurring \| Other Real Estate Owned \| Level 2
Fair value measurements of assets on a nonrecurring basis
Other real estate owned, Total	0
Nonrecurring \| Other Real Estate Owned \| Level 3
Fair value measurements of assets on a nonrecurring basis
Other real estate owned, Total	727
Nonrecurring \| Covered Impaired Loans
Fair value measurements of assets on a nonrecurring basis
Total, Basis			0
Covered impaired loans, Total			0
Total, Net Losses (Gains) Recorded in Earnings		42
Nonrecurring \| Covered Impaired Loans \| Level 1
Fair value measurements of assets on a nonrecurring basis
Covered impaired loans, Total			0
Nonrecurring \| Covered Impaired Loans \| Level 2
Fair value measurements of assets on a nonrecurring basis
Covered impaired loans, Total			0
Nonrecurring \| Covered Impaired Loans \| Level 3
Fair value measurements of assets on a nonrecurring basis
Covered impaired loans, Total			$0

Fair_Value_Measurements_Quanti

Fair Value Measurements - Quantitative Information, Level 3 (Details) (Nonrecurring, USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Noncovered Impaired Loans
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Impaired noncovered loans	$81	$1,908
Other Real Estate Owned
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Other real estate owned	727
Level 3 \| Noncovered Impaired Loans
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Impaired noncovered loans	81	1,908
Valuation Technique(s)	MarketÂ approach	MarketÂ approach
Unobservable Input(s)	Adjustment for differences between the comparable sales	Adjustment for differences between the comparable sales
Level 3 \| Noncovered Impaired Loans \| Minimum
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	-50.00%	-47.50%
Level 3 \| Noncovered Impaired Loans \| Maximum
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	0.00%	96.20%
Level 3 \| Noncovered Impaired Loans \| Weighted Average
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	-25.00%	7.00%
Level 3 \| Other Real Estate Owned
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Other real estate owned	$727
Valuation Technique(s)	Market approach
Unobservable Input(s)	Adjustment for differences between the comparable sales
Level 3 \| Other Real Estate Owned \| Minimum
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	-6.00%
Level 3 \| Other Real Estate Owned \| Maximum
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	3.00%
Level 3 \| Other Real Estate Owned \| Weighted Average
Fair value measurements for financial instruments measured at fair value on a non-recurring basis
Range of Inputs; Weighted Average	-5.00%

Fair_Value_Measurements_Carryi

Fair Value Measurements - Carrying Value and Fair Value of Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financial Assets:
Investment securities held to maturity	$36,633	$36,874
Level 1
Financial Assets:
Cash and cash equivalents	80,064	121,636
Other interest earning deposits	0	0
Investment securities available for sale	1,984	1,973
Investment securities held to maturity	0	0
Loans held for sale	0	0
Loans receivable, net of allowance for loan losses	0	0
Accrued interest receivable	3	3
Financial Liabilities:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	2,422,213	2,380,934
Certificate of deposit accounts	0	0
Total deposits	2,422,213	2,380,934
Federal Home Loan Bank advances	7,420
Securities sold under agreement to repurchase	23,177	32,181
Junior subordinated debentures	0	0
Accrued interest payable	58	62
Level 2
Financial Assets:
Cash and cash equivalents	0	0
Other interest earning deposits	9,396	10,145
Investment securities available for sale	745,315	740,873
Investment securities held to maturity	36,633	36,874
Loans held for sale	8,966	5,710
Loans receivable, net of allowance for loan losses	0	0
Accrued interest receivable	3,465	3,009
Financial Liabilities:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	0	0
Certificate of deposit accounts	483,408	525,768
Total deposits	483,408	525,768
Federal Home Loan Bank advances	0
Securities sold under agreement to repurchase	0	0
Junior subordinated debentures	0	0
Accrued interest payable	188	328
Level 3
Financial Assets:
Cash and cash equivalents	0	0
Other interest earning deposits	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 allowance for loan losses	2,325,462	2,279,081
Accrued interest receivable	6,664	6,824
Financial Liabilities:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	0	0
Certificate of deposit accounts	0	0
Total deposits	0	0
Federal Home Loan Bank advances	0
Securities sold under agreement to repurchase	0	0
Junior subordinated debentures	19,205	19,082
Accrued interest payable	20	21
Carrying Value
Financial Assets:
Cash and cash equivalents	80,064	121,636
Other interest earning deposits	9,364	10,126
Investment securities available for sale	747,299	742,846
Investment securities held to maturity	35,425	35,814
Federal Home Loan Bank stock	12,022	12,188
Loans held for sale	8,742	5,582
Loans receivable, net of allowance for loan losses	2,260,498	2,223,348
Accrued interest receivable	10,132	9,836
Financial Liabilities:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	2,422,213	2,380,934
Certificate of deposit accounts	490,245	525,397
Total deposits	2,912,458	2,906,331
Federal Home Loan Bank advances	7,420
Securities sold under agreement to repurchase	23,177	32,181
Junior subordinated debentures	19,205	19,082
Accrued interest payable	266	411
Fair Value
Financial Assets:
Cash and cash equivalents	80,064	121,636
Other interest earning deposits	9,396	10,145
Investment securities available for sale	747,299	742,846
Investment securities held to maturity	36,633	36,874
Loans held for sale	8,966	5,710
Loans receivable, net of allowance for loan losses	2,325,462	2,279,081
Accrued interest receivable	10,132	9,836
Financial Liabilities:
Noninterest deposits, NOW accounts, money market accounts and savings accounts	2,422,213	2,380,934
Certificate of deposit accounts	483,408	525,768
Total deposits	2,905,621	2,906,702
Federal Home Loan Bank advances	7,420
Securities sold under agreement to repurchase	23,177	32,181
Junior subordinated debentures	19,205	19,082
Accrued interest payable	$266	$411

Fair_Value_Measurements_Detail

Fair Value Measurements (Details Textual) (USD $)	3 Months Ended
Fair Value Measurements (Details Textual) (USD $)	Mar. 31, 2015	Mar. 31, 2014
Fair Value Disclosures [Abstract]
Fair value assets transfers between level 1 and level 2 transfer amount	$0	$0