Banner (BANR) 10-Q 6 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Banner Corporation	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Amendment Flag	'false	'
Entity Central Index Key	'0000946673	'
Current Fiscal Year End Date	'--12-31	'
Entity Common Stock, Shares Outstanding	'	19,571,713
Entity Filer Category	'Accelerated Filer	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Entity Well-known Seasoned Issuer	'No	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

CONSOLIDATED_STATEMENTS_OF_FIN

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$151,725	$137,349
Securities—trading, amortized cost $58,390 and $75,150, respectively	51,076	62,472
Securities—available-for-sale, amortized cost $435,272 and $474,960, respectively	433,745	470,280
Securities—held-to-maturity, fair value $138,754 and $103,610, respectively	133,069	102,513
Federal Home Loan Bank (FHLB) stock	29,106	35,390
Loans receivable:	'	'
Held for sale	6,949	2,734
Held for portfolio	3,799,746	3,415,711
Allowance for loan losses	-74,331	-74,258
Total loans, net	3,732,364	3,344,187
Accrued interest receivable	17,062	13,996
Real estate owned (REO), held for sale, net	3,928	4,044
Property and equipment, net	91,291	90,267
Intangible assets, net	3,362	2,449
Bank-owned life insurance (BOLI)	63,293	61,945
Deferred tax assets, net	21,830	27,479
Income tax receivable	0	9,728
Other assets	27,538	26,799
Total assets	4,759,389	4,388,898
Deposits:	'	'
Non-interest-bearing	1,304,720	1,115,346
Interest-bearing transaction and savings accounts	1,833,404	1,629,885
Interest-bearing certificates	852,994	872,695
Total deposit liabilities	3,991,118	3,617,926
Advances from FHLB at fair value	250	27,250
Other borrowings	67,605	83,056
Junior subordinated debentures at fair value (issued in connection with Trust Preferred Securities)	77,624	73,928
Accrued expenses and other liabilities	32,375	31,324
Deferred compensation	16,359	16,442
Total liabilities	4,185,331	3,849,926
COMMITMENTS AND CONTINGENCIES (Note 15)	'	'
STOCKHOLDERS’ EQUITY	'	'
Common stock and paid in capital - $0.01 par value per share, 50,000,000 shares authorized, 19,571,505 shares issued and outstanding at September 30, 2014; 19,543,769 shares issued and 19,509,429 shares outstanding at December 31, 2013	568,255	569,028
Retained earnings (accumulated deficit)	6,780	-25,073
Accumulated other comprehensive loss	-977	-2,996
Unearned shares of common stock issued to Employee Stock Ownership Plan (ESOP) trust at cost: no shares outstanding at September 30, 2014 and 34,340 shares outstanding at December 31, 2013	0	-1,987
Total Stockholders' Equity	574,058	538,972
Total Liabilities and Stockholders' Equity	$4,759,389	$4,388,898

CONSOLIDATED_STATEMENTS_OF_FIN1

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
ASSETS	'	'
Securities—trading, Amortized Cost Basis	$58,390	$75,150
Securities—available-for-sale, Amortized Cost Basis	435,272	474,960
Securities—held-to-maturity, Fair Value	$138,754	$103,610
STOCKHOLDERS’ EQUITY	'	'
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Shares Authorized	50,000,000	50,000,000
Common Stock, Shares Issued	19,568,704	19,543,769
Common Stock, Shares Outstanding	19,568,704	19,509,429
Common Stock, Shares Held in Employee Trust	0	34,340

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INTEREST INCOME:	'	'	'	'
Loans receivable	$46,496	$41,953	$131,439	$125,734
Mortgage-backed securities	1,459	1,281	4,376	3,847
Securities and cash equivalents	1,809	1,803	5,595	5,535
Total Interest Income	49,764	45,037	141,410	135,116
INTEREST EXPENSE:	'	'	'	'
Deposits	1,903	2,330	5,776	7,539
FHLB advances	20	28	110	92
Other borrowings	43	44	133	151
Junior subordinated debentures	734	742	2,180	2,225
Total Interest Expense	2,700	3,144	8,199	10,007
Net interest income before provision for loan losses	47,064	41,893	133,211	125,109
PROVISION FOR LOAN LOSSES	0	0	0	0
Net interest income	47,064	41,893	133,211	125,109
OTHER OPERATING INCOME:	'	'	'	'
Deposit fees and other service charges	8,289	6,982	22,237	19,911
Mortgage banking operations	2,842	2,590	7,282	9,002
Miscellaneous	761	920	2,041	2,375
Other operating income (loss)	11,892	10,492	31,560	31,288
Gain on sale of securities	6	2	41	1,020
Other-than-temporary impairment recovery	0	0	0	409
Net change in valuation of financial instruments carried at fair value	1,452	-352	1,662	-1,954
Acquisition bargain purchase gain	0	0	9,079	0
Total other operating income	13,350	10,142	42,342	30,763
OTHER OPERATING EXPENSES:	'	'	'	'
Salary and employee benefits	22,971	21,244	66,457	63,197
Less capitalized loan origination costs	-3,204	-2,915	-8,680	-8,856
Occupancy and equipment	5,819	5,317	17,055	16,061
Information/computer data services	2,131	1,710	5,984	5,353
Payment and card processing expenses	3,201	2,530	8,462	7,284
Professional services	784	1,074	2,900	2,799
Advertising and marketing	2,454	1,556	4,878	4,853
Deposit insurance	607	564	1,820	1,826
State/municipal business and use taxes	475	461	1,022	1,463
REO operations	-190	-601	-260	-1,047
Amortization of core deposit intangibles	531	471	1,460	1,453
Acquisition-related costs	-494	0	1,530	0
Miscellaneous	3,410	3,079	9,884	9,660
Total other operating expenses	38,495	34,490	112,512	104,046
Income before provision for income taxes	21,919	17,545	63,041	51,826
PROVISION FOR INCOME TAXES	7,076	5,880	20,620	16,825
NET INCOME	$14,843	$11,665	$42,421	$35,001
Earnings per common share:	'	'	'	'
Basic (in dollars per share)	$0.77	$0.60	$2.19	$1.81
Diluted (in dollars per share)	$0.76	$0.60	$2.19	$1.80
Cumulative dividends declared per common share (in dollars per share)	$0.18	$0.15	$0.54	$0.39

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
NET INCOME	$14,843	$11,665	$42,421	$35,001
OTHER COMPREHENSIVE INCOME (LOSS), NET OF INCOME TAXES:	'	'	'	'
Unrealized holding gain (loss) on available-for-sale securities arising during the period	-1,636	1,240	3,195	-6,314
Income tax benefit (expense) related to available-for-sale securities unrealized holding gains (losses)	592	-446	-1,150	2,273
Reclassification for net gains (losses) on available-for-sale securities realized in earnings	-6	-2	-41	-1,429
Income tax (benefit) expense related to available-for-sale securities realized (gains) losses	2	1	15	514
Other comprehensive income (loss)	-1,048	793	2,019	-4,956
COMPREHENSIVE INCOME	$13,795	$12,458	$44,440	$30,045

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock and Paid in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Unearned Restricted ESOP Shares [Member]
In Thousands, except Share data, unless otherwise specified
Balance, beginning of the period at Dec. 31, 2012	$506,919	$567,907	($61,102)	$2,101	($1,987)
Balance, beginning of the period (in shares) at Dec. 31, 2012	'	19,420,625	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net income	46,555	'	46,555	'	'
Other comprehensive income, net of income tax	-5,097	'	'	-5,097	'
Accrual of dividends on common stock	-10,526	'	-10,526	'	'
Proceeds from issuance of common stock for stockholder reinvestment program (in shares)	'	2,098	'	'	'
Proceeds from issuance of common stock for stockholder reinvestment program	72	72	'	'	'
Issuance of restricted stock and amortization of related compensation (in shares)	'	86,706	'	'	'
Issuance of restricted stock and recognition of share-based compensation	1,049	1,049	'	'	'
Balance, end of the period at Dec. 31, 2013	538,972	569,028	-25,073	-2,996	-1,987
Balance, end of the period (in shares) at Dec. 31, 2013	'	19,509,429	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net income	42,421	'	42,421	'	'
Other comprehensive income, net of income tax	2,019	'	'	2,019	'
Accrual of dividends on common stock	-10,568	'	-10,568	'	'
Redemption of unallocated shares upon termination of ESOP	0	-1,987	'	'	1,987
Repurchase of shares upon termination of ESOP (in shares)	'	-13,550	'	'	'
Repurchase of shares upon termination of ESOP	-556	-556	'	'	'
Proceeds from issuance of common stock for stockholder reinvestment program (in shares)	'	2,295	'	'	'
Proceeds from issuance of common stock for stockholder reinvestment program	93	93	'	'	'
Issuance of restricted stock and amortization of related compensation (in shares)	'	73,331	'	'	'
Issuance of restricted stock and recognition of share-based compensation	1,677	1,677	'	'	'
Balance, end of the period at Sep. 30, 2014	$574,058	$568,255	$6,780	($977)	$0
Balance, end of the period (in shares) at Sep. 30, 2014	'	19,571,505	'	'	'

CONSOLIDATED_STATEMENTS_OF_CHA1

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Statement of Stockholders' Equity [Abstract]	'	'	'	'	'
Cumulative dividends declared per common share (in dollars per share)	$0.18	$0.15	$0.54	$0.39	$0.54

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES:	'	'
Net income	$42,421	$35,001
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation	6,081	5,540
Deferred income and expense, net of amortization	2,555	2,786
Amortization of core deposit intangibles	1,460	1,453
Gain on sale of securities	-41	-1,020
Other-than-temporary impairment recovery	0	-409
Net change in valuation of financial instruments carried at fair value	-1,662	1,954
Purchases of securities—trading	-2,387	-27,458
Proceeds from sales of securities—trading	2,387	29,351
Principal repayments and maturities of securities—trading	16,791	5,119
Bargain purchase gain on acquisition	-9,079	0
Decrease in deferred taxes	5,648	8,937
Increase (decrease) in current taxes payable	9,995	-12,054
Equity-based compensation	1,677	583
Increase in cash surrender value of BOLI	-1,329	-1,503
Gain on sale of loans, net of capitalized servicing rights	-4,235	-5,505
Gain on disposal of real estate held for sale and property and equipment	-817	-2,445
Provision for losses on real estate held for sale	37	490
Origination of loans held for sale	-262,159	-360,602
Proceeds from sales of loans held for sale	262,179	369,560
Net change in:	'	'
Other assets	-2,118	20,666
Other liabilities	-33	-2,098
Net cash provided from operating activities	67,371	68,346
INVESTING ACTIVITIES:	'	'
Purchases of securities—available-for-sale	-48,022	-193,901
Principal repayments and maturities of securities—available-for-sale	29,198	74,642
Proceeds from sales of securities—available-for-sale	55,982	103,274
Purchases of securities—held-to-maturity	-35,121	-12,963
Principal repayments and maturities of securities—held-to-maturity	3,857	2,613
Loan originations, net of principal repayments	-151,355	-51,792
Purchases of loans and participating interest in loans	-152,321	-166
Proceeds from sales of other loans	4,609	4,803
Net cash received from acquisition	127,557	0
Purchases of property and equipment	-4,024	-5,510
Proceeds from sale of real estate held for sale, net	3,631	15,758
Proceeds from FHLB stock repurchase program	6,284	997
Other	-2,063	-359
Net cash used by investing activities	-161,788	-62,604
FINANCING ACTIVITIES:	'	'
Increase (decrease) in deposits, net	161,106	-22,519
Advances, net of repayments of FHLB borrowings	-27,005	9,995
Increase in other borrowings, net	-15,451	6,276
Cash dividends paid	-9,950	-4,872
Cash proceeds from issuance of stock for stockholder reinvestment plan	93	45
Net cash provided from (used by) financing activities	108,793	-11,075
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	14,376	-5,333
CASH AND DUE FROM BANKS, BEGINNING OF PERIOD	137,349	181,298
CASH AND DUE FROM BANKS, END OF PERIOD	151,725	175,965
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:	'	'
Interest paid in cash	8,277	10,337
Taxes paid, net of refunds received in cash	6,102	17,147
NON-CASH INVESTING AND FINANCING TRANSACTIONS:	'	'
Loans, net of discounts, specific loss allowances and unearned income, transferred to real estate owned and other repossessed assets	3,019	2,743
ACQUISITIONS (Note 4):	'	'
Assets acquired	221,206	0
Liabilities assumed	$212,127	$0

BASIS_OF_PRESENTATION_AND_CRIT

BASIS OF PRESENTATION AND CRITICAL ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
BASIS OF PRESENTATION AND CRITICAL ACCOUNTING POLICIES	'
	BASIS OF PRESENTATION AND CRITICAL ACCOUNTING POLICIES
	The accompanying unaudited consolidated interim financial statements include the accounts of Banner Corporation (the Company or Banner), a bank holding company incorporated in the State of Washington and its wholly-owned subsidiaries, Banner Bank and Islanders Bank (the Banks).
	These unaudited consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (SEC). In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information and disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. Certain reclassifications have been made to the 2013 Consolidated Financial Statements and/or schedules to conform to the 2014 presentation. These reclassifications may have affected certain ratios for the prior periods. The effect of these reclassifications is considered immaterial. All significant intercompany transactions and balances have been eliminated.
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the financial statements. Various elements of the Company’s accounting policies, by their nature, are inherently subject to estimation techniques, valuation assumptions and other subjective assessments. In particular, management has identified several accounting policies that, due to the judgments, estimates and assumptions inherent in those policies, are critical to an understanding of Banner’s financial statements. These policies relate to (i) the methodology for the recognition of interest income, (ii) determination of the provision and allowance for loan and lease losses, (iii) the valuation of financial assets and liabilities recorded at fair value, including other-than-temporary impairment (OTTI) losses, (iv) the valuation of intangibles, such as core deposit intangibles and mortgage servicing rights, and (v) the valuation of or recognition of deferred tax assets and liabilities. These policies and judgments, estimates and assumptions are described in greater detail in subsequent notes to the Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations (Critical Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2013 filed with the SEC.  Management believes that the judgments, estimates and assumptions used in the preparation of the financial statements are appropriate based on the factual circumstances at the time.  However, given the sensitivity of the financial statements to these critical accounting policies, the use of other judgments, estimates and assumptions could result in material differences in the Company’s results of operations or financial condition.  Further, subsequent changes in economic or market conditions could have a material impact on these estimates and the Company’s financial condition and operating results in future periods.
	The information included in this Form 10-Q should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 as filed with the SEC (2013 Form 10-K).  Interim results are not necessarily indicative of results for a full year.

RECENT_DEVELOPMENTS_AND_SIGNIF

RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS	9 Months Ended
	Sep. 30, 2014
Recent Developments and Significant Events [Abstract]	'
RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS	'
	RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS
	Proposed Acquisition of AmericanWest Bank
	On November 5, 2014, the Company announced the execution of a definitive agreement to purchase the holding company for AmericanWest Bank (AmericanWest), a Washington state charted commercial bank. Pursuant to the agreement, AmericanWest’s holding company will merge with and into Banner and AmericanWest Bank will merge with and into Banner Bank. The merged banks will operate under the Banner Bank brand. Under the terms of the agreement, the aggregate consideration to be received by AmericanWest equityholders will consist of a fixed amount of 13.23 million shares of Banner common stock and $130.0 million in cash. Upon completion of the transaction, such shares will represent an approximately 38.8% pro forma ownership interest in Banner. Based on the closing price of Banner common stock on November 4, 2014, the aggregate value of the transaction is approximately $702 million. The definitive merger agreement was approved unanimously by the boards of directors of both companies. The merger is expected to close during the second quarter of 2015 and is subject to approval by Banner’s shareholders and regulatory agencies as well as other customary closing conditions.
	Proposed Acquisition of Siuslaw Financial Group, Inc.
	On August 7, 2014, the Company announced the execution of a definitive agreement to purchase Siuslaw Financial Group, Inc. (Siuslaw), the holding company of Siuslaw Bank, an Oregon state charted commercial bank. Subject to the terms and conditions of the merger agreement, the transaction provides for the Siuslaw shareholders to receive consideration of $1.41622 in cash plus 0.32231 of a share of Banner common stock in exchange for each share of Siuslaw common stock, which is approximately 90% stock and 10% cash. In connection with the transaction, Banner has received approval from the Federal Deposit Insurance Corporation, the Washington Department of Financial Institutions and the Oregon Department of Consumer Business and Services of the proposed merger of Siuslaw Bank with and into Banner Bank. Banner has filed a waiver request with the Federal Reserve Board requesting that it waive its application requirements with respect to the proposed merger of Siuslaw with and into Banner. Completion of the transaction is subject to customary conditions, including approval of the Merger Agreement by Siuslaw's shareholders and the receipt of the waiver from the Federal Reserve Board. Upon closing of the transaction Siuslaw will be merged into Banner and Siuslaw Bank will be merged into Banner Bank.
	Stockholder Equity Transactions:
	Omnibus Incentive Plan: On January 28, 2014, the Company's board of directors unanimously adopted, and on April 22, 2014 the Company's shareholders approved, the Banner Corporation 2014 Omnibus Incentive Plan (2014 Plan). The purpose of the 2014 Plan is to promote the success and enhance the value of Banner by linking the personal interests of employees and directors with those of Banner's shareholders. The 2014 Plan is further intended to provide flexibility to Banner in its ability to motivate, attract, and retain the services of employees and directors upon whose judgment, interest and special effort Banner depends. The 2014 Plan also allows performance-based compensation to be provided in a manner that exempts such compensation from the deduction limits imposed by Section 162(m) of the Internal Revenue Code.

ACCOUNTING_STANDARDS_RECENTLY_

ACCOUNTING STANDARDS RECENTLY ISSUED OR ADOPTED	9 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
ACCOUNTING STANDARDS RECENTLY ISSUED OR ADOPTED	'
	ACCOUNTING STANDARDS RECENTLY ISSUED OR ADOPTED
	Unrecognized Tax Benefits
	In July 2013, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2013-11, Presentation of an Unrecognized Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This ASU requires an unrecognized tax benefit to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. An exception exists to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax of the applicable jurisdiction does not require the entity to use, and entity does not intend to use, the deferred tax asset for such a purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. ASU No. 2013-11 is effective for fiscal years and interim periods beginning after December 15, 2013. The Company adopted the provisions of ASU No. 2013-11 effective January 1, 2014. The adoption of this guidance did not have a material effect on the Company's consolidated financial statements.
	Investing in Qualified Affordable Housing Projects
	In January 2014, FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. The objective of this ASU is to provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for the low-income housing tax credit. The amendments in this ASU modify the conditions that a reporting entity must meet to be eligible to use a method other than the equity or cost methods to account for qualified affordable housing project investments. If the modified conditions are met, the amendments permit an entity to amortize the initial cost of the investment in proportion to the amount of tax credits and other tax benefits received and recognize the net investment performance in the income statement as a component of income tax expense (benefit). Additionally, the amendments introduce new recurring disclosures about all investments in qualified affordable housing projects irrespective of the method used to account for the investments. The amendments in this ASU should be applied retrospectively to all periods presented. ASU No. 2014-01 is effective beginning after December 15, 2014 and is not expected to have a material impact on the Company's consolidated financial statements.
	Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure
	In January 2014, FASB issued ASU No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments in this ASU clarify that an in-substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. ASU No. 2014-04 is effective for fiscal years and interim periods beginning after December 15, 2014 and is not expected to have a material impact on the Company's consolidated financial statements.
	Revenue from Contracts with Customers
	In May 2014, FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which creates Topic 606 and supersedes Topic 605, Revenue Recognition. The core principle of Topic 606 is that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In general, the new guidance requires companies to use more judgment and make more estimates than under current guidance, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. The standard is effective for public entities for interim and annual periods beginning after December 15, 2016; early adoption is not permitted. For financial reporting purposes, the standard allows for either full retrospective adoption, meaning the standard is applied to all of the periods presented, or modified retrospective adoption, meaning the standard is applied only to the most current period presented in the financial statements with the cumulative effect of initially applying the standard recognized at the date of initial application. The Company is currently evaluating the provisions of ASU No. 2014-09 to determine the potential impact the standard will have on the Company’s consolidated financial statements.
	Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure
	In August 2014, FASB issued ASU No. 2014-14, Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure. The amendments in this ASU affect creditors that hold government-guaranteed mortgage loans, including those guaranteed by the FHA and the VA. The ASU provides specific guidance on how to classify or measure foreclosed mortgage loans that are government guaranteed. The amendments in this Update require that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: 1) the loan has a government guarantee that is not separable from the loan before foreclosure, 2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and creditor has the ability to recover under the claim and, 3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. ASU No. 2014-14 is effective for fiscal years and interim periods beginning after December 15, 2014 and is not expected to have a material impact on the Company's consolidated financial statements.

BUSINESS_COMBINATIONS_BUSINESS

BUSINESS COMBINATIONS BUSINESS COMBINATIONS	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
BUSINESS COMBINATIONS	'
	BUSINESS COMBINATIONS
	Acquisition of Six Oregon Branches
	Effective as of the close of business on June 20, 2014, Banner Bank completed the purchase of six branches from Umpqua Bank, successor to Sterling Savings Bank (the Branch Acquisition). Five of the six branches are located in Coos County, Oregon and the sixth branch is located in Douglas County, Oregon. The purchase provided $212 million in deposit accounts, $88 million in loans, and $3 million in branch properties. Banner Bank received $128 million in cash from the transaction.
	The assets acquired and liabilities assumed in the purchase have been accounted for under the acquisition method of accounting. The assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the acquisition date. The application of the acquisition method of accounting resulted in recognition of a core deposit intangible asset of $2.4 million and an acquisition bargain purchase gain of $9.1 million. The bargain purchase gain represents the excess fair value of the net assets acquired over the purchase price, including fair value of liabilities assumed. The bargain purchase gain consisted primarily of a $7 million discount on the assets acquired in this required branch divestiture combined with a $2.4 million core deposit intangible, net of approximately $300,000 in other fair value adjustments. The acquired core deposit intangible has been determined to have a useful life of approximately eight years and will be amortized on an accelerated basis.
	The following table displays the fair value as of the acquisition date for each major class of assets acquired and liabilities assumed (in thousands):
		Fair Value at Acquisition
		20-Jun-14
	Assets:
	Cash	$	127,557
	Loans receivable (contractual amount of $88.3 million)	87,923
	Property and equipment	3,079
	Core deposit intangible	2,372
	Other assets	275
	Total assets	221,206
	Liabilities:
	Deposits	212,085
	Other liabilities	42
	Total liabilities	212,127
	Acquisition bargain purchase gain	$	9,079
	Amounts recorded are preliminary estimates of fair value. Additional adjustmentss to the purchase price allocation may be required and would most likely involve loans or property and equipment. The primary reason for the acquisition was to continue the Company's growth strategy, including expanding our geographic footprint in markets throughout the Northwest. As of June 20, 2014, the transaction had no remaining contingencies. Pro forma results of operations for the three and nine months ended September 30, 2014 and 2013, as if the Branch Acquisition had occurred on January 1, 2013, have not been presented because historical financial information was not available.
	The operating results of the Company include the operating results produced by the six acquired branches from June 21, 2014 to September 30, 2014. In connection with the acquisition, Banner recognized actual expenses and accrued for anticipated expenses a total of $2.0 million in the quarter ended June 30, 2014. In the quarter ended September 30, 2014, Banner adjusted the accrued estimated expenses to reflect amounts actually incurred, which resulted in a reversal of expenses totaling $494,000 for the quarter. For the nine months ended September 30, 2014, acquisition-related expenses totaled $1.5 million. See the following table of acquisition-related expenses for the three and nine months ended September 30, 2014 as follows (in thousands):
		Three Months Ended September 30, 2014			Nine Months Ended
					30-Sep-14
	Acquisition-related costs recognized in other operating expenses:
	Non-capitalized equipment and repairs	$	70		$	99
	Client communications	(108		)	130
	Information/computer data services	(335		)	297
	Payment and processing expenses	(205		)	66
	Professional services	56			674
	Miscellaneous	28			264
		$	(494	)	$	1,530

INTERESTBEARING_DEPOSITS_AND_S

INTEREST-BEARING DEPOSITS AND SECURITIES	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
INTEREST-BEARING DEPOSITS AND SECURITIES	'
	INTEREST-BEARING DEPOSITS AND SECURITIES
	The following table sets forth additional detail regarding our interest-bearing deposits and securities at the dates indicated (includes securities—trading, available-for-sale and held-to-maturity, all at carrying value) (in thousands):
		September 30, 2014		December 31, 2013
	Interest-bearing deposits included in cash and due from banks	$	82,702	$	67,638
	U.S. Government and agency obligations	46,943		61,327
	Municipal bonds:
	Taxable	35,020		34,216
	Tax exempt	137,979		119,588
	Total municipal bonds	172,999		153,804
	Corporate bonds	35,862		44,154
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	56,331		58,117
	One- to four-family residential other	753		1,051
	Multifamily agency guaranteed	269,143		281,319
	Multifamily other	10,476		10,234
	Total mortgage-backed or related securities	336,703		350,721
	Asset-backed securities:
	Student Loan Marketing Association (SLMA)	15,650		15,681
	Other asset-backed securities	9,671		9,510
	Total asset-backed securities	25,321		25,191
	Equity securities (excludes FHLB stock)	62		68
	Total securities	617,890		635,265
	Total interest-bearing deposits and securities	$	700,592	$	702,903
	Securities—Trading:  The amortized cost and estimated fair value of securities—trading at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014								December 31, 2013
		Amortized Cost		Fair Value			Percent of Total			Amortized Cost				Fair Value			Percent of Total
	U.S. Government and agency obligations	$	1,340	$	1,494		2.9	%		$	1,370			$	1,481		2.4	%
	Municipal bonds:
	Tax exempt	1,665		1,707			3.4			4,969				5,023			8
	Corporate bonds	37,981		29,013			56.8			49,498				35,140			56.2
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	8,697		9,393			18.4			10,483				11,230			18
	Multifamily agency guaranteed	8,693		9,407			18.4			8,816				9,530			15.3
	Total mortgage-backed or related securities	17,390		18,800			36.8			19,299				20,760			33.3
	Equity securities	14		62			0.1			14				68			0.1
		$	58,390	$	51,076		100	%		$	75,150			$	62,472		100	%
	There were three sales of securities—trading totaling $2.4 million with a resulting net gain of $1,000 during the nine months ended September 30, 2014. There were 40 sales of securities—trading totaling $29.4 million with a resulting net gain of $1.5 million during the nine months ended September 30, 2013, including $1.0 million which represented recoveries on certain collateralized debt obligations that had previously been written off.  In addition to the $1.5 million net gain, the Company also recognized a $409,000 OTTI recovery on sales of securities—trading during the nine months ended September 30, 2013, which was related to the sale of certain equity securities issued by government-sponsored entities.  The Company did not recognize any OTTI charges or recoveries on securities—trading during the nine months ended September 30, 2014. No securities—trading were on nonaccrual status at September 30, 2014 and 2013.
	The amortized cost and estimated fair value of securities—trading at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
		September 30, 2014					December 31, 2013
		Amortized Cost		Fair Value			Amortized Cost				Fair Value
	Maturing in one year or less	$	260	$	262		$	260			$	263
	Maturing after one year through five years	7,917		8,467			7,056				7,298
	Maturing after five years through ten years	7,159		7,805			12,602				13,572
	Maturing after ten years through twenty years	21,181		20,024			33,335				27,472
	Maturing after twenty years	21,859		14,456			21,883				13,799
		58,376		51,014			75,136				62,404
	Equity securities	14		62			14				68
		$	58,390	$	51,076		$	75,150			$	62,472
	Securities—Available-for-Sale:  The amortized cost and estimated fair value of securities—available-for-sale at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014
		Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total
	U.S. Government and agency obligations	$	43,565	$	15		$	(287	)		$	43,293			10	%
	Municipal bonds:
	Taxable	19,567		97			(44		)		19,620				4.5
	Tax exempt	29,944		168			(53		)		30,059				6.9
	Total municipal bonds	49,511		265			(97		)		49,679				11.4
	Corporate bonds	5,000		49			—				5,049				1.2
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	44,897		792			(437		)		45,252				10.4
	One- to four-family residential other	712		41			—				753				0.2
	Multifamily agency guaranteed	255,519		438			(2,035		)		253,922				58.6
	Multifamily other	10,529		11			(64		)		10,476				2.4
	Total mortgage-backed or related securities	311,657		1,282			(2,536		)		310,403				71.6
Asset-backed securities:
SLMA	15,486		164			—				15,650				3.6
Other asset-backed securities	10,053		—			(382		)		9,671				2.2
Total asset-backed securities	25,539		164			(382		)		25,321				5.8
	$	435,272	$	1,775		$	(3,302	)		$	433,745			100	%
	December 31, 2013
	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total
U.S. Government and agency obligations	$	59,178	$	117		$	(635	)		$	58,660			12.5	%
Municipal bonds:
Taxable	23,842		100			(278		)		23,664				5
Tax exempt	29,229		170			(208		)		29,191				6.2
Total municipal bonds	53,071		270			(486		)		52,855				11.2
Corporate bonds	7,001		2			(39		)		6,964				1.5
Mortgage-backed or related securities:
One- to four-family residential agency guaranteed	47,077		648			(838		)		46,887				10
One- to four-family residential other	988		63			—				1,051				0.2
Multifamily agency guaranteed	271,428		402			(3,392		)		268,438				57.1
Multifamily other	10,604		—			(370		)		10,234				2.2
Total mortgage-backed or related securities	330,097		1,113			(4,600		)		326,610				69.5
Asset-backed securities:
SLMA	15,553		128			—				15,681				3.3
Other asset-backed securities	10,060		—			(550		)		9,510				2
Total asset-backed securities	25,613		128			(550		)		25,191				5.3
	$	474,960	$	1,630		$	(6,310	)		$	470,280			100	%
At September 30, 2014 and December 31, 2013, an aging of unrealized losses and fair value of related securities—available-for-sale was as follows (in thousands):
	September 30, 2014
	Less Than 12 Months					12 Months or More								Total
	Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
U.S. Government and agency obligations	$	16,102	$	(50	)	$	20,301			$	(237	)		$	36,403		$	(287	)
Municipal bonds:
Taxable	4,585		(6		)	3,691				(38		)		8,276			(44		)
Tax exempt	2,140		(3		)	3,661				(50		)		5,801			(53		)
Total municipal bonds	6,725		(9		)	7,352				(88		)		14,077			(97		)
Mortgage-backed or related securities:
One- to four-family residential agency guaranteed	7,459		(61		)	11,836				(376		)		19,295			(437		)
Multifamily agency guaranteed	92,070		(426		)	104,790				(1,609		)		196,860			(2,035		)
Multifamily other	8,417		(64		)	—				—				8,417			(64		)
Total mortgage-backed or related securities	107,946		(551		)	116,626				(1,985		)		224,572			(2,536		)
Asset-backed securities:
Other asset-backed securities	—		—			9,671				(382		)		9,671			(382		)
	$	130,773	$	(610	)	$	153,950			$	(2,692	)		$	284,723		$	(3,302	)
	December 31, 2013
	Less Than 12 Months					12 Months or More								Total
	Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
U.S. Government and agency obligations	$	39,621	$	(633	)	$	998			$	(2	)		$	40,619		$	(635	)
Municipal bonds:
Taxable	15,580		(261		)	413				(17		)		15,993			(278		)
Tax exempt	8,217		(205		)	487				(3		)		8,704			(208		)
Total municipal bonds	23,797		(466		)	900				(20		)		24,697			(486		)
Corporate bonds	4,961		(39		)	—				—				4,961			(39		)
Mortgage-backed or related securities:
One- to four-family residential agency guaranteed	14,972		(133		)	22,560				(705		)		37,532			(838		)
Multifamily agency guaranteed	199,407		(3,162		)	10,096				(230		)		209,503			(3,392		)
Multifamily other	10,234		(370		)	—				—				10,234			(370		)
Total mortgage-backed or related securities	224,613		(3,665		)	32,656				(935		)		257,269			(4,600		)
Asset-backed securities:
Other asset-backed securities	—		—			9,510				(550		)		9,510			(550		)
	$	292,992	$	(4,803	)	$	44,064			$	(1,507	)		$	337,056		$	(6,310	)
There were 12 sales of securities—available-for-sale totaling $56.0 million with a resulting net gain of $40,000 during the nine months ended September 30, 2014. There were 35 sales of securities—available-for-sale totaling $103.3 million with a resulting net loss of $116,000 during the nine months ended September 30, 2013.  At September 30, 2014, there were 90 securities—available for sale with unrealized losses, compared to 114 securities at December 31, 2013.  Management does not believe that any individual unrealized loss as of September 30, 2014 represents OTTI.  The decline in fair market values of these securities was generally due to changes in interest rates and changes in market-desired spreads subsequent to their purchase. There were no securities—available-for-sale on nonaccrual status at September 30, 2014 or 2013.
The amortized cost and estimated fair value of securities—available-for-sale at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
	September 30, 2014					December 31, 2013
	Amortized Cost		Fair Value			Amortized Cost				Fair Value
Maturing in one year or less	$	3,951	$	3,955		$	25,136			$	25,256
Maturing after one year through five years	312,365		310,514			322,493				319,489
Maturing after five years through ten years	48,536		48,587			58,468				57,782
Maturing after ten years through twenty years	12,100		12,107			15,535				15,135
Maturing after twenty years	58,320		58,582			53,328				52,618
	$	435,272	$	433,745		$	474,960			$	470,280
Securities—Held-to-Maturity:  The amortized cost and estimated fair value of securities—held-to-maturity at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
	September 30, 2014
	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total Amortized Cost
U.S. Government and agency obligations	$	2,156	$	—		$	(25	)		$	2,131			1.6	%
Municipal bonds:
Taxable	15,400		286			(4		)		15,682				11.6
Tax exempt	106,213		5,591			(167		)		111,637				79.8
Total municipal bonds	121,613		5,877			(171		)		127,319				91.4
Corporate bonds	1,800		—			—				1,800				1.4
Mortgage-backed or related securities:
One- to four-family residential agency guaranteed	1,686		—			(12		)		1,674				1.2
Multifamily agency guaranteed	5,814		18			(2		)		5,830				4.4
Total mortgage-backed or related securities	7,500		18			(14		)		7,504				5.6
	$	133,069	$	5,895		$	(210	)		$	138,754			100	%
	December 31, 2013
	Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total Amortized Cost
U.S. Government and agency obligations	$	1,186	$	—		$	(80	)		$	1,106			1.2	%
Municipal bonds:
Taxable	10,552		193			(204		)		10,541				10.3
Tax exempt	85,374		2,545			(1,299		)		86,620				83.3
Total municipal bonds	95,926		2,738			(1,503		)		97,161				93.6
Corporate bonds	2,050		—			—				2,050				2
Mortgage-backed or related securities:
Multifamily agency guaranteed	3,351		—			(58		)		3,293				3.2
	$	102,513	$	2,738		$	(1,641	)		$	103,610			100	%
At September 30, 2014 and December 31, 2013, an age analysis of unrealized losses and fair value of related securities—held-to-maturity was as follows (in thousands):
	September 30, 2014
	Less Than 12 Months					12 Months or More								Total
	Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
U.S. Government and agency obligations	$	—	$	—		$	1,131			$	(25	)		$	1,131		$	(25	)
Municipal bonds:
Taxable	1,147		(4		)	—				—				1,147			(4		)
Tax exempt	5,091		(39		)	7,418				(128		)		12,509			(167		)
Total municipal bonds	6,238		(43		)	7,418				(128		)		13,656			(171		)
Mortgage-backed or related securities:
One- to four-family residential agency guaranteed	1,674		(12		)	—				—				1,674			(12		)
Multifamily agency guaranteed	2,230		(2		)	—				—				2,230			(2		)
Total mortgage-backed or related securities	3,904		(14		)	—				—				3,904			(14		)
	$	10,142	$	(57	)	$	8,549			$	(153	)		$	18,691		$	(210	)
	December 31, 2013
	Less Than 12 Months					12 Months or More								Total
	Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
U.S. Government and agency obligations	$	1,106	$	(80	)	$	—			$	—			$	1,106		$	(80	)
Municipal bonds:
Taxable	3,344		(110		)	2,964				(94		)		6,308			(204		)
Tax exempt	31,234		(1,282		)	303				(17		)		31,537			(1,299		)
Total municipal bonds	34,578		(1,392		)	3,267				(111		)		37,845			(1,503		)
Mortgage-backed or related securities:
Multifamily agency guaranteed	3,293		(58		)	—				—				3,293			(58		)
	$	38,977	$	(1,530	)	$	3,267			$	(111	)		$	42,244		$	(1,641	)
There were no sales of securities—held-to-maturity during the nine months ended September 30, 2014 and 2013.  At September 30, 2014, there were 27 securities—held-to-maturity with unrealized losses, compared to 36 securities at December 31, 2013.  Management does not believe that any individual unrealized loss as of September 30, 2014 represents OTTI.  The decline in fair market value of these securities was generally due to changes in interest rates and changes in market-desired spreads subsequent to their purchase. There were no securities—held-to-maturity on nonaccrual status at September 30, 2014 or 2013.
The amortized cost and estimated fair value of securities—held-to-maturity at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
	September 30, 2014					December 31, 2013
	Amortized Cost		Fair Value			Amortized Cost				Fair Value
Maturing in one year or less	$	940	$	947		$	1,270			$	1,281
Maturing after one year through five years	15,400		15,679			10,834				11,206
Maturing after five years through ten years	26,090		26,440			17,948				17,908
Maturing after ten years through twenty years	75,613		80,421			59,643				60,791
Maturing after twenty years	15,026		15,267			12,818				12,424
	$	133,069	$	138,754		$	102,513			$	103,610
Pledged Securities: The following table presents, as of September 30, 2014, investment securities and interest-bearing deposits which were pledged to secure borrowings, public deposits or other obligations as permitted or required by law (in thousands):
	Carrying Value		Amortized Cost			Fair Value
Purpose or beneficiary:
State and local governments public deposits	$	137,864	$	137,738		$	143,306
Interest rate swap counterparties	9,751		9,405			9,751
Retail repurchase agreements	100,350		100,115			100,350
Other	248		248			248
Total pledged securities and interest-bearing deposits	$	248,213	$	247,506		$	253,655

FHLB_STOCK

FHLB STOCK	9 Months Ended
	Sep. 30, 2014
Banking and Thrift [Abstract]	'
FHLB STOCK	'
	FHLB STOCK
	The Banks’ investments in Federal Home Loan Bank of Seattle stock are carried at cost, which is its par value ($100 per share) and which reasonably approximates its fair value.  As members of the FHLB system, the Banks are required to maintain a minimum level of investment in FHLB stock based on specific percentages of their outstanding FHLB advances.  At September 30, 2014 and December 31, 2013, respectively, the Company had recorded $29.1 million and $35.4 million in investments in FHLB stock.  This stock is generally viewed as a long-term investment and it does not have a readily determinable fair value.  Ownership of FHLB stock is restricted to the FHLB and member institutions and can only be purchased and redeemed at par. For the three months ended September 30, 2014 and 2013, the Banks received dividend income of $8,000 and $9,000, respectively, on FHLB stock. For the nine months ended September 30, 2014 and 2013, the Banks received dividend income of $26,000 and $9,000, respectively, on FHLB stock.
	Management periodically evaluates FHLB stock for impairment.  Management’s determination of whether these investments are impaired is based on its assessment of the ultimate recoverability of cost rather than by recognizing temporary declines in value.  The determination of whether a decline affects the ultimate recoverability of cost is influenced by criteria such as (1) the significance of any decline in net assets of the FHLB as compared to the capital stock amount for the FHLB and the length of time this situation has persisted, (2) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB, (3) the impact of legislative and regulatory changes on institutions and, accordingly, the customer base of the FHLB, and (4) the liquidity position of the FHLB.
	Previously, the Federal Housing Finance Agency (the FHFA), the FHLB of Seattle's primary regulator, determined that the FHLB of Seattle had a risk-based capital deficiency as of December 31, 2008, and required the FHLB to suspend future dividends and the repurchase and redemption of outstanding common stock. Subsequent improvement in the FHLB's operating performance and financial condition, however, led to a September 7, 2012 announcement by the FHLB that the FHFA now considers the FHLB of Seattle to be adequately capitalized. Dividends on, or repurchases of, the FHLB of Seattle stock continue to require the consent of the FHFA. Since the third quarter of 2012, the FHFA has approved the repurchase of portions of FHLB of Seattle stock in each subsequent quarter and since the third quarter of 2013 has approved the payment of cash dividends by the FHLB of Seattle in each subsequent quarter. The FHLB repurchased $2.1 million of the Banks' stock during the quarter ending September 30, 2014. Even though the payment of dividends and stock repurchases have resumed, the Company will continue to monitor the financial condition of the FHLB as it relates to, among other things, the recoverability of Banner's investment. On September 25, 2014, the FHLB of Seattle entered into an Agreement and Plan of Merger with and into the FHLB of Des Moines. The Merger approval is subject to a number of conditions including, among other things, member approval for each FHLB as well as regulatory approval. Based on the above, the Company has determined there was no impairment on its FHLB stock investment as of September 30, 2014.

LOANS_RECEIVABLE_AND_THE_ALLOW

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES	'
	LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES
	The Banks originate residential mortgage loans for both portfolio investment and sale in the secondary market. At the time of origination, mortgage loans are designated as held for sale or held for investment. Loans held for sale are stated at the lower of cost or estimated market value determined on an aggregate basis. Net unrealized losses on loans held for sale are recognized through a valuation allowance by charges to income. The Banks also originate construction, land and land development, commercial and multifamily real estate, commercial business, agricultural business and consumer loans for portfolio investment. Loans receivable not designated as held for sale are recorded at the principal amount outstanding, net of deferred fees and origination costs, and discounts and premiums.  Premiums, discounts and deferred loan fees and origination costs are amortized to maturity using the level-yield methodology.
	Interest is accrued as earned unless management doubts the collectability of the loan or the unpaid interest. Interest accruals are generally discontinued when loans become 90 days past due for scheduled interest payments. All previously accrued but uncollected interest is deducted from interest income upon transfer to nonaccrual status. Future collection of interest is included in interest income based upon an assessment of the likelihood that the loans will be repaid or recovered. A loan may be put on nonaccrual status sooner than this policy would dictate if, in management’s judgment, the loan may be uncollectable. Such interest is then recognized as income only if it is ultimately collected.
	Loans receivable, including loans held for sale, at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014							December 31, 2013
		Amount				Percent of Total			Amount				Percent of Total
	Commercial real estate:
	Owner-occupied	$	546,333			14.4	%		$	502,601			14.7	%
	Investment properties	854,284				22.4			692,457				20.3
	Multifamily real estate	183,944				4.8			137,153				4
	Commercial construction	18,606				0.5			12,168				0.4
	Multifamily construction	48,606				1.3			52,081				1.5
	One- to four-family construction	214,141				5.6			200,864				5.8
	Land and land development:
	Residential	89,649				2.4			75,695				2.2
	Commercial	10,505				0.3			10,450				0.3
	Commercial business	728,088				19.1			682,169				20
	Agricultural business, including secured by farmland	240,048				6.3			228,291				6.7
	One- to four-family residential	527,271				13.8			529,494				15.5
	Consumer:
	Consumer secured by one- to four-family	215,385				5.7			173,188				5.1
	Consumer-other	129,835				3.4			121,834				3.5
	Total loans outstanding	3,806,695				100	%		3,418,445				100	%
	Less allowance for loan losses	(74,331		)					(74,258		)
	Net loans	$	3,732,364						$	3,344,187
	Loan amounts are net of unearned loan fees in excess of unamortized costs of $8.0 million as of September 30, 2014 and $8.3 million as of December 31, 2013.
	The Company’s total loans by geographic concentration at September 30, 2014 were as follows (dollars in thousands):
		Washington				Oregon				Idaho				Other				Total
	Commercial real estate:
	Owner-occupied	$	389,967			$	85,032			$	53,891			$	17,443			$	546,333
	Investment properties	532,415				123,874				59,963				138,032				854,284
	Multifamily real estate	141,337				27,685				14,847				75				183,944
	Commercial construction	16,953				—				1,653				—				18,606
	Multifamily construction	41,462				7,144				—				—				48,606
	One- to four-family construction	128,882				82,656				2,603				—				214,141
	Land and land development:
	Residential	50,257				38,327				1,065				—				89,649
	Commercial	5,055				2,569				2,881				—				10,505
	Commercial business	392,334				121,078				80,262				134,414				728,088
	Agricultural business, including secured by farmland	123,910				63,146				52,992				—				240,048
	One- to four-family residential	329,751				173,384				23,371				765				527,271
	Consumer:
	Consumer secured by one- to four-family	130,312				69,121				15,313				639				215,385
	Consumer—other	83,379				39,818				6,241				397				129,835
	Total loans	$	2,366,014			$	833,834			$	315,082			$	291,765			$	3,806,695
	Percent of total loans	62.1		%		21.9		%		8.3		%		7.7		%		100		%
	The geographic concentrations of the Company’s land and land development loans by state at September 30, 2014 were as follows (dollars in thousands):
		Washington				Oregon				Idaho				Total
	Residential:
	Acquisition and development	$	21,759			$	17,976			$	922			$	40,657
	Improved land and lots	25,062				19,122				143				44,327
	Unimproved land	3,436				1,229				—				4,665
	Commercial:
	Improved land and lots	2,863				489				1,784				5,136
	Unimproved land	2,192				2,080				1,097				5,369
	Total land and land development loans	$	55,312			$	40,896			$	3,946			$	100,154
	Percent of land and land development loans	55.3		%		40.8		%		3.9		%		100		%
	The Company originates both adjustable- and fixed-rate loans.  The maturity and repricing composition of those loans, less undisbursed amounts and deferred fees and origination costs, at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014				December 31, 2013
	Fixed-rate (term to maturity):
	Maturing in one year or less	$	106,939			$	122,313
	Maturing after one year through three years	165,930				143,322
	Maturing after three years through five years	196,794				187,279
Maturing after five years through ten years	235,143				209,869
Maturing after ten years	551,436				439,004
Total fixed-rate loans	1,256,242				1,101,787
Adjustable-rate (term to rate adjustment):
Maturing or repricing in one year or less	1,502,536				1,390,579
Maturing or repricing after one year through three years	408,079				279,791
Maturing or repricing after three years through five years	553,810				541,529
Maturing or repricing after five years through ten years	84,758				99,503
Maturing or repricing after ten years	1,270				5,256
Total adjustable-rate loans	2,550,453				2,316,658
Total loans	$	3,806,695			$	3,418,445
The adjustable-rate loans have interest rate adjustment limitations and are generally indexed to various prime or London Inter-bank Offering Rate (LIBOR) rates, One to Five Year Constant Maturity Treasury Indices or FHLB advance rates.  Future market factors may affect the correlation of the interest rate adjustment with the rates the Banks pay on the short-term deposits that were primarily utilized to fund these loans.
Impaired Loans and the Allowance for Loan Losses.  A loan is considered impaired when, based on current information and circumstances, the Company determines it is probable that it will be unable to collect all amounts due according to the contractual terms of the loan agreement, including scheduled interest payments.  Impaired loans are comprised of loans on nonaccrual, troubled debt restructurings (TDRs) that are performing under their restructured terms, and loans that are 90 days or more past due, but are still on accrual.
Troubled Debt Restructures. Some of the Company’s loans are reported as TDRs.  Loans are reported as TDRs when the bank grants one or more concessions to a borrower experiencing financial difficulties that it would not otherwise consider.  Examples of such concessions include forgiveness of principal or accrued interest, extending the maturity date(s) or providing a lower interest rate than would be normally available for a transaction of similar risk.  Our TDRs have generally not involved forgiveness of amounts due, but almost always include a modification of multiple factors; the most common combination includes interest rate, payment amount and maturity date. As a result of these concessions, restructured loans are impaired as the Company will not collect all amounts due, both principal and interest, in accordance with the terms of the original loan agreement.  Loans identified as TDRs are accounted for in accordance with the Company's impaired loan accounting policies.
The amount of impaired loans and the related allocated reserve for loan losses as of September 30, 2014 and December 31, 2013 were as follows (in thousands):
	September 30, 2014								December 31, 2013
	Loan Amount				Allocated Reserves				Loan Amount				Allocated Reserves
Impaired loans:
Nonaccrual loans
Commercial real estate:
Owner-occupied	$	2,396			$	33			$	2,466			$	31
Investment properties	305				57				3,821				89
Multifamily real estate	397				55				—				—
One- to four-family construction	—				—				269				—
Land and land development:
Residential	1,285				173				924				6
Commercial business	1,037				60				724				104
Agricultural business, including secured by farmland	229				15				—				—
One- to four-family residential	8,615				83				12,532				250
Consumer:
Consumer secured by one- to four-family	724				34				903				13
Consumer—other	414				1				269				1
Total nonaccrual loans	15,402				511				21,908				494
Loans 90 days or more past due and still accruing
Commercial real estate:
Owner-occupied	993				1				—				—
Commercial business	301				6				—				—
Agricultural business, including secured by farmland	—				—				105				8
One- to four-family residential	2,777				12				2,611				16
Consumer:
Consumer secured by one- to four-family	—				—				13				—
Consumer—other	306				—				131				1
Total loans past due and still accruing	4,377				19				2,860				25
Troubled debt restructuring on accrual status:
Commercial real estate:
Owner-occupied	184				4				186				4
Investment properties	6,062				751				5,367				415
Multifamily real estate	791				91				5,744				1,139
One- to four-family construction	3,721				620				6,864				1,002
Land and land development:
Residential	1,637				476				4,061				754
Commercial business	880				103				1,299				222
One- to four-family residential	16,677				1,074				23,302				1,355
Consumer:
Consumer secured by one- to four-family	233				30				360				33
Consumer—other	202				6				245				34
Total troubled debt restructurings on accrual status	30,387				3,155				47,428				4,958
Total impaired loans	$	50,166			$	3,685			$	72,196			$	5,477
As of September 30, 2014 and December 31, 2013, the Company had commitments to advance funds related to TDRs up to additional amounts of $788,000 and $225,000, respectively.
The following tables provide additional information on impaired loans with and without specific allowance reserves at or for the nine months ended September 30, 2014 and at or for the year ended December 31, 2013 (in thousands):
	At or For the Nine Months Ended September 30, 2014
	Recorded Investment				Unpaid Principal Balance				Related Allowance				Average Recorded Investment				Interest Income Recognized
Without a specific allowance reserve (1)
Commercial real estate:
Owner-occupied	$	1,565			$	1,614			$	34			$	1,579			$	38
Investment properties	305				850				57				325				—
Multifamily real estate	397				397				55				423				—
Commercial business	1,338				1,705				66				1,307				14
Agricultural business/farmland	229				229				15				102				—
One- to four-family residential	9,179				9,809				26				9,439				89
Consumer:
Consumer secured by one- to four-family	628				641				12				642				—
Consumer—other	602				607				1				607				12
	14,243				15,852				266				14,424				153
With a specific allowance reserve (2)
Commercial real estate:
Owner-occupied	2,008				2,008				4				1,555				8
Investment properties	6,062				6,467				751				6,124				238
Multifamily real estate	791				791				91				797				34
One- to-four family construction	3,721				3,721				620				3,501				120
Land and land development:
Residential	2,922				4,078				649				2,937				67
Commercial business	880				880				103				918				38
One- to four-family residential	18,890				19,652				1,143				19,457				659
Consumer:
Consumer secured by one- to four-family	329				329				52				383				13
Consumer—other	320				336				6				331				15
	35,923				38,262				3,419				36,003				1,192
Total
Commercial real estate:
Owner-occupied	3,573				3,622				38				3,134				46
Investment properties	6,367				7,317				808				6,449				238
Multifamily real estate	1,188				1,188				146				1,220				34
One- to four-family construction	3,721				3,721				620				3,501				120
Land and land development:
Residential	2,922				4,078				649				2,937				67
Commercial business	2,218				2,585				169				2,225				52
Agricultural business/farmland	229				229				15				102				—
One- to four-family residential	28,069				29,461				1,169				28,896				748
Consumer:
Consumer secured by one- to four-family	957				970				64				1,025				13
Consumer—other	922				943				7				938				27
	$	50,166			$	54,114			$	3,685			$	50,427			$	1,345
	At or For the Year Ended December 31, 2013
	Recorded Investment				Unpaid Principal Balance				Related Allowance				Average Recorded Investment				Interest Income Recognized
Without a specific allowance reserve (1)
Commercial real estate:
Owner-occupied	$	534			$	584			$	31			$	569			$	—
Investment properties	429				974				89				624				—
Commercial business	724				1,040				104				896				—
Agricultural business/farmland	105				105				8				110				8
One- to four-family residential	8,611				9,229				42				8,889				31
Consumer:
Consumer secured by one- to four-family	870				1,013				13				900				1
Consumer—other	276				285				2				287				8
	11,549				13,230				289				12,275				48
With a specific allowance reserve (2)
Commercial real estate:
Owner-occupied	2,118				2,118				4				2,192				12
Investment properties	8,759				10,395				415				8,353				241
Multifamily real estate	5,744				5,744				1,139				5,705				298
One- to-four family construction	7,133				7,213				1,002				5,870				239
Land and land development:
Residential	4,985				6,140				760				6,053				221
Commercial business	1,298				1,298				222				1,340				59
One- to four-family residential	29,834				31,440				1,579				31,668				1,032
Consumer:
Consumer secured by one- to four-family	406				407				33				503				24
Consumer—other	370				386				34				390				21
	60,647				65,141				5,188				62,074				2,147
Total
Commercial real estate
Owner-occupied	2,652				2,702				35				2,761				12
Investment properties	9,188				11,369				504				8,977				241
Multifamily real estate	5,744				5,744				1,139				5,705				298
One- to four-family construction	7,133				7,213				1,002				5,870				239
Land and land development
Residential	4,985				6,140				760				6,053				221
Commercial business	2,022				2,338				326				2,236				59
Agricultural business/farmland	105				105				8				110				8
One- to four-family residential	38,445				40,669				1,621				40,557				1,063
Consumer
Consumer secured by one- to four-family	1,276				1,420				46				1,403				25
Consumer—other	646				671				36				677				29
	$	72,196			$	78,371			$	5,477			$	74,349			$	2,195
(1)	Loans without a specific allowance reserve have not been individually evaluated for impairment, but have been included in pools of homogeneous loans for evaluation of related allowance reserves.
(2)	Loans with a specific allowance reserve have been individually evaluated for impairment using either a discounted cash flow analysis or, for collateral dependent loans, current appraisals less costs to sell to establish realizable value.  These analyses may identify a specific impairment amount needed or may conclude that no reserve is needed.  Any specific impairment that is identified is included in the category’s Related Allowance column.
The following tables present TDRs at September 30, 2014 and December 31, 2013 (in thousands):
	September 30, 2014
	Accrual				Nonaccrual				Total
	Status				Status				TDRs
Commercial real estate:
Owner-occupied	$	184			$	110			$	294
Investment properties	6,062				38				6,100
Multifamily real estate	791				—				791
One- to four-family construction	3,721				—				3,721
Land and land development:
Residential	1,637				535				2,172
Commercial business	880				103				983
One- to four-family residential	16,677				950				17,627
Consumer:
Consumer secured by one- to four-family	233				119				352
Consumer—other	202				117				319
	$	30,387			$	1,972			$	32,359
	December 31, 2013
	Accrual				Nonaccrual				Total
	Status				Status				TDRs
Commercial real estate:
Owner-occupied	$	186			$	613			$	799
Investment properties	5,367				1,630				6,997
Multifamily real estate	5,744				—				5,744
One- to four-family construction	6,864				269				7,133
Land and land development:
Residential	4,061				174				4,235
Commercial business	1,299				164				1,463
One- to four-family residential	23,302				2,474				25,776
Consumer:
Consumer secured by one- to four-family	360				252				612
Consumer—other	245				123				368
	$	47,428			$	5,699			$	53,127
The following tables present new TDRs that occurred during the three and nine months ended September 30, 2014 and 2013 (dollars in thousands):
	Three Months Ended September 30, 2014											Nine Months Ended September 30, 2014
	Number of			Pre-modification Outstanding				Post-modification Outstanding				Number of			Pre-				Post-
	Contracts			Recorded Investment				Recorded Investment				Contracts			modification Outstanding				modification Outstanding
															Recorded				Recorded
															Investment				Investment
Recorded Investment (1) (2)
Commercial real estate
Owner occupied	—			$	—			$	—			1			$	94			$	94
One- to four-family construction	1			388				388				5			1,369				1,369
Commercial business	—			—				—				1			100				100
One- to four-family residential	2			434				434				2			434				434
Consumer-other	—			—				—				1			9				9
	3			$	822			$	822			10			$	2,006			$	2,006
	Three Months Ended September 30, 2013											Nine Months Ended September 30, 2013
	Number of			Pre-modification Outstanding				Post-modification Outstanding				Number of			Pre-				Post-
	Contracts			Recorded Investment				Recorded Investment				Contracts			modification Outstanding				modification Outstanding
															Recorded				Recorded
															Investment				Investment
Recorded Investment (1) (2)
Multifamily real estate	—			$	—			$	—			1			$	376			$	376
One- to four-family construction	3			773				773				11			3,008				3,008
Land and land development—residential	2			1,029				1,029				2			1,029				1,029
One- to four-family residential	—			—				—				10			2,923				2,923
	5			$	1,802			$	1,802			24			$	7,336			$	7,336
(1)	Since most loans were already considered classified and/or on nonaccrual status prior to restructuring, the modifications did not have a material effect on the Company’s determination of the allowance for loan losses.
(2)	The majority of these modifications do not fit into one separate type, such as rate, term, amount, interest-only or payment, but instead are a combination of multiple types of modifications; therefore, they are disclosed in aggregate.
The following table presents TDRs which incurred a payment default within twelve months of the restructure date during the three and nine month periods ended September 30, 2014 and 2013 (in thousands).  A default on a TDR results in either a transfer to nonaccrual status or a partial charge-off:
	Three Months Ended								Nine Months Ended
	30-Sep								30-Sep
	2014				2013				2014				2013
Commercial business	$	—			$	137			$	—			$	137
Total	$	—			$	137			$	—			$	137
Credit Quality Indicators:  To appropriately and effectively manage the ongoing credit quality of the Company’s loan portfolio, management has implemented a risk-rating or loan grading system for its loans.  The system is a tool to evaluate portfolio asset quality throughout each applicable loan’s life as an asset of the Company.  Generally, loans and leases are risk rated on an aggregate borrower/relationship basis with individual loans sharing similar ratings.  There are some instances when specific situations relating to individual loans will provide the basis for different risk ratings within the aggregate relationship.  Loans are graded on a scale of 1 to 9.  A description of the general characteristics of these categories is shown below:
Overall Risk Rating Definitions:  Risk-ratings contain both qualitative and quantitative measurements and take into account the financial strength of a borrower and the structure of the loan or lease.  Consequently, the definitions are to be applied in the context of each lending transaction and judgment must also be used to determine the appropriate risk rating, as it is not unusual for a loan or lease to exhibit characteristics of more than one risk-rating category.  Consideration for the final rating is centered in the borrower’s ability to repay, in a timely fashion, both principal and interest.  There were no material changes in the risk-rating or loan grading system in the nine months ended September 30, 2014.
Risk Rating 1: Exceptional
A credit supported by exceptional financial strength, stability, and liquidity.  The risk rating of 1 is reserved for the Company’s top quality loans, generally reserved for investment grade credits underwritten to the standards of institutional credit providers.
Risk Rating 2: Excellent
A credit supported by excellent financial strength, stability and liquidity.  The risk rating of 2 is reserved for very strong and highly stable customers with ready access to alternative financing sources.
Risk Rating 3: Strong
A credit supported by good overall financial strength and stability.  Collateral margins are strong; cash flow is stable although susceptible to cyclical market changes.
Risk Rating 4: Acceptable
A credit supported by the borrower’s adequate financial strength and stability.  Assets and cash flow are reasonably sound and provide for orderly debt reduction.  Access to alternative financing sources will be more difficult to obtain.
Risk Rating 5: Watch
A credit with the characteristics of an acceptable credit which requires, however, more than the normal level of supervision and warrants formal quarterly management reporting.  Credits in this category are not yet criticized or classified, but due to adverse events or aspects of underwriting require closer than normal supervision. Generally, credits should be watch credits in most cases for six months or less as the impact of stress factors are analyzed.
Risk Rating 6: Special Mention
A credit with potential weaknesses that deserves management’s close attention is risk rated a 6.  If left uncorrected, these potential weaknesses will result in deterioration in the capacity to repay debt.  A key distinction between Special Mention and Substandard is that in a Special Mention credit, there are identified weaknesses that pose potential risk(s) to the repayment sources, versus well defined weaknesses that pose risk(s) to the repayment sources.  Assets in this category are expected to be in this category no more than 9-12 months as the potential weaknesses in the credit are resolved.
Risk Rating 7: Substandard
A credit with well defined weaknesses that jeopardize the ability to repay in full is risk rated a 7.  These credits are inadequately protected by either the sound net worth and payment capacity of the borrower or the value of pledged collateral.  These are credits with a distinct possibility of loss.  Loans headed for foreclosure and/or legal action due to deterioration are rated 7 or worse.
Risk Rating 8: Doubtful
A credit with an extremely high probability of loss is risk rated 8.  These credits have all the same critical weaknesses that are found in a substandard loan; however, the weaknesses are elevated to the point that based upon current information, collection or liquidation in full is improbable.  While some loss on doubtful credits is expected, pending events may strengthen a credit making the amount and timing of any loss indeterminable.  In these situations taking the loss is inappropriate until it is clear that the pending event has failed to strengthen the credit and improve the capacity to repay debt.
Risk Rating 9: Loss
A credit that is considered to be currently uncollectible or of such little value that it is no longer a viable Bank asset is risk rated 9.  Losses should be taken in the accounting period in which the credit is determined to be uncollectible.  Taking a loss does not mean that a credit has absolutely no recovery or salvage value but, rather, it is not practical or desirable to defer writing off the credit, even though partial recovery may occur in the future.
The following table shows the Company’s portfolio of risk-rated loans and non-risk-rated loans by grade or other characteristics as of September 30, 2014 and December 31, 2013 (in thousands):
	September 30, 2014
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Total Loans
	Real Estate				Real Estate
Risk-rated loans:
Pass (Risk Ratings 1-5) (1)	$	1,366,811			$	182,727			$	364,770			$	684,572			$	234,787			$	514,857		$	342,524		$	3,691,048
Special mention	5,147				—				—				34,137				1,183				64			144			40,675
Substandard	28,394				1,217				16,737				9,372				4,078				12,350			2,541			74,689
Doubtful	265				—				—				7				—				—			11			283
Loss	—				—				—				—				—				—			—			—
Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	3,806,695
Performing loans	$	1,396,923			$	183,547			$	380,222			$	726,750			$	239,819			$	515,879		$	343,776		$	3,786,916
Non-performing loans (2)	3,694				397				1,285				1,338				229				11,392			1,444			19,779
Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	3,806,695
	December 31, 2013
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Total Loans
	Real Estate				Real Estate
Risk-rated loans:
Pass (Risk Ratings 1-5) (1)	$	1,160,921			$	131,523			$	332,150			$	655,007			$	225,329			$	511,967		$	291,992		$	3,308,889
Special mention	6,614				—				350				10,484				561				—			106			18,115
Substandard	26,979				5,630				18,758				16,669				2,401				17,527			2,924			90,888
Doubtful	544				—				—				9				—				—			—			553
Loss	—				—				—				—				—				—			—			—
Total loans	$	1,195,058			$	137,153			$	351,258			$	682,169			$	228,291			$	529,494		$	295,022		$	3,418,445
Performing loans	$	1,188,771			$	137,153			$	350,065			$	681,445			$	228,187			$	514,351		$	293,705		$	3,393,677
Non-performing loans (2)	6,287				—				1,193				724				104				15,143			1,317			24,768
Total loans	$	1,195,058			$	137,153			$	351,258			$	682,169			$	228,291			$	529,494		$	295,022		$	3,418,445
(1)	The Pass category includes some performing loans that are part of homogenous pools which are not individually risk-rated.  This includes all consumer loans, all one- to four-family residential loans and, as of September 30, 2014 and December 31, 2013, in the commercial business category, $109 million and $94 million, respectively, of credit-scored small business loans.  As loans in these pools become non-performing, they are individually risk-rated.
(2)	Non-performing loans include non-accrual loans and loans past due greater than 90 days and on accrual status.
The following tables provide additional detail on the age analysis of the Company’s past due loans as of September 30, 2014 and December 31, 2013 (in thousands):
	September 30, 2014
	30-59 Days				60-89 Days				90 Days or More				Total				Current				Total Loans			Loans 90 Days or More Past Due and Accruing
	Past Due				Past Due				Past Due				Past Due
Commercial real estate:
Owner-occupied	$	187			$	1,620			$	1,258			$	3,065			$	543,268			$	546,333		$	993
Investment properties	—				—				267				267				854,017				854,284			—
Multifamily real estate	—				—				—				—				183,944				183,944			—
Commercial construction	—				—				—				—				18,606				18,606			—
Multifamily construction	—				—				—				—				48,606				48,606			—
One-to-four-family construction	—				—				—				—				214,141				214,141			—
Land and land development:
Residential	—				—				750				750				88,899				89,649			—
Commercial	—				—				—				—				10,505				10,505			—
Commercial business	188				145				899				1,232				726,856				728,088			301
Agricultural business, including secured by farmland	14				552				229				795				239,253				240,048			—
One- to four-family residential	240				3,401				7,274				10,915				516,356				527,271			2,777
Consumer:
Consumer secured by one- to four-family	368				572				176				1,116				214,269				215,385			—
Consumer—other	346				67				521				934				128,901				129,835			306
Total	$	1,343			$	6,357			$	11,374			$	19,074			$	3,787,621			$	3,806,695		$	4,377
	31-Dec-13
	30-59 Days				60-89 Days				90 Days or More				Total				Current				Total Loans			Loans 90 Days or More Past Due and Accruing
	Past Due				Past Due				Past Due				Past Due
Commercial real estate:
Owner-occupied	$	883			$	550			$	813			$	2,246			$	500,355			$	502,601		$	—
Investment properties	—				—				—				—				692,457				692,457			—
Multifamily real estate	1,845				785				—				2,630				134,523				137,153			—
Commercial construction	—				—				—				—				12,168				12,168			—
Multifamily construction	—				—				—				—				52,081				52,081			—
One-to-four-family construction	9				7				4				20				200,844				200,864			—
Land and land development:
Residential	—				—				251				251				75,444				75,695			—
Commercial	—				—				—				—				10,450				10,450			—
Commercial business	2,001				2				299				2,302				679,867				682,169			—
Agricultural business, including secured by farmland	—				—				—				—				228,291				228,291			105
One-to four-family residential	521				2,550				9,142				12,213				517,281				529,494			2,611
Consumer:
Consumer secured by one- to four-family	723				93				918				1,734				171,454				173,188			13
Consumer—other	384				99				131				614				121,220				121,834			131
Total	$	6,366			$	4,086			$	11,558			$	22,010			$	3,396,435			$	3,418,445		$	2,860
The following tables provide additional information on the allowance for loan losses and loan balances individually and collectively evaluated for impairment at or for the three and nine months ended September 30, 2014 and 2013 (in thousands):
	For the Three Months Ended September 30, 2014
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate
Allowance for loan losses:
Beginning balance	$	18,884			$	5,765			$	17,837			$	12,014			$	2,824			$	9,270		$	748		$	6,968		$	74,310
Provision for loan losses	527				(853		)		2,858				490				(339		)		(38		)	603			(3,248		)	—
Recoveries	94				—				84				256				587				143			53			—			1,217
Charge-offs	—				(20		)		—				(83		)		(125		)		(239		)	(729		)	—			(1,196		)
Ending balance	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
	For the Nine Months Ended September 30, 2014
	Commercial				Multifamily				Construction and Land				Commercial				Agricultural				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate								Business				business
Allowance for loan losses:
Beginning balance	$	16,759			$	5,306			$	17,640			$	11,773			$	2,841			$	11,486		$	1,335		$	7,118		$	74,258
Provision for loan losses	3,321				(394		)		2,558				1,150				(1,017		)		(2,253		)	33			(3,398		)	—
Recoveries	664				—				788				835				1,248				535			393			—			4,463
Charge-offs	(1,239		)		(20		)		(207		)		(1,081		)		(125		)		(632		)	(1,086		)	—			(4,390		)
Ending balance	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
	September 30, 2014
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate
Allowance individually evaluated for impairment	$	755			$	91			$	1,269			$	103			$	—			$	1,143		$	58		$	—		$	3,419
Allowance collectively evaluated for impairment	18,750				4,801				19,510				12,574				2,947				7,993			617			3,720			70,912
Total allowance for loan losses	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
Loan balances:
Loans individually evaluated for impairment	$	8,070			$	791			$	6,643			$	880			$	—			$	18,890		$	649		$	—		$	35,923
Loans collectively evaluated for impairment	1,392,547				183,153				374,864				727,208				240,048				508,381			344,571			—			3,770,772
Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	—		$	3,806,695
	For the Three Months Ended September 30, 2013
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate
Allowance for loan losses:
Beginning balance	$	14,898			$	4,973			$	16,625			$	10,806			$	3,805			$	14,974		$	1,011		$	9,029		$	76,121
Provision for loan losses	1,239				310				(464		)		(223		)		(411		)		(1,599		)	43			1,105			—
Recoveries	331				—				507				339				265				19			68			—			1,529
Charge-offs	(850		)		—				—				(246		)		(248		)		(207		)	(174		)	—			(1,725		)
Ending balance	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
	For the Nine Months Ended September 30, 2013
	Commercial				Multifamily				Construction and Land				Commercial				Agricultural				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate								Business				business
Allowance for loan losses:
Beginning balance	$	15,322			$	4,506			$	14,991			$	9,957			$	2,295			$	16,475		$	1,348		$	11,865		$	76,759
Provision for loan losses	(383		)		777				1,586				901				752				(2,166		)	264			(1,731		)	—
Recoveries	2,295				—				945				1,391				612				138			287			—			5,668
Charge-offs	(1,616		)		—				(854		)		(1,573		)		(248		)		(1,260		)	(951		)	—			(6,502		)
Ending balance	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
	September 30, 2013
	Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
	Real Estate				Real Estate
Allowance individually evaluated for impairment	$	459			$	1,256			$	2,182			$	202			$	—			$	1,639		$	85		$	—		$	5,823
Allowance collectively evaluated for impairment	15,159				4,027				14,486				10,474				3,411				11,548			863			10,134			70,102
Total allowance for loan losses	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
Loan balances:
Loans individually evaluated for impairment	$	9,137			$	5,810			$	13,613			$	1,115			$	—			$	28,711		$	1,139		$	—		$	59,525
Loans collectively evaluated for  impairment	1,112,961				127,960				319,999				634,543				223,187				514,552			282,709			—			3,215,911
Total loans	$	1,122,098			$	133,770			$	333,612			$	635,658			$	223,187			$	543,263		$	283,848		$	—		$	3,275,436

REAL_ESTATE_OWNED_NET

REAL ESTATE OWNED, NET	9 Months Ended
	Sep. 30, 2014
Real Estate [Abstract]	'
REAL ESTATE OWNED, NET	'
	REAL ESTATE OWNED, NET
	The following table presents the changes in REO for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		30-Sep						30-Sep
		2014			2013			2014			2013
	Balance, beginning of the period	$	4,388		$	6,714		$	4,044		$	15,778
	Additions from loan foreclosures	135			963			2,837			2,467
	Additions from capitalized costs	—			297			35			344
	Proceeds from dispositions of REO	(860		)	(3,970		)	(3,631		)	(15,758		)
	Gain on sale of REO	265			1,005			680			2,477
	Valuation adjustments in the period	—			(191		)	(37		)	(490		)
	Balance, end of the period	$	3,928		$	4,818		$	3,928		$	4,818
	The following table shows REO by type and geographic location by state as of September 30, 2014 (in thousands):
		Washington			Oregon			Idaho			Total
	Land development—residential	$	259		$	1,637		$	32		$	1,928
	One- to four-family real estate	1,257			743			—			2,000
	Balance, end of period	$	1,516		$	2,380		$	32		$	3,928
	REO properties are recorded at the lower of the estimated fair value of the property, less expected selling costs, or the carrying value of the defaulted loan, establishing a new cost basis.  Subsequently, REO properties are carried at the lower of the new cost basis or updated fair market values, based on updated appraisals of the underlying properties, as received.  Valuation allowances on the carrying value of REO may be recognized based on updated appraisals or on management’s authorization to reduce the selling price of a property.

INTANGIBLE_ASSETS_AND_MORTGAGE

INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS	9 Months Ended
	Sep. 30, 2014
Other Intangible Assets and Mortgage Servicing Rights [Abstract]	'
INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS	'
	INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS
	Intangible Assets:  At September 30, 2014, intangible assets consisted primarily of core deposit intangibles (CDI), which are amounts recorded in business combinations or deposit purchase transactions related to the value of transaction-related deposits and the value of the customer relationships associated with the deposits.
	The Company amortizes CDI over their estimated useful lives and reviews them at least annually for events or circumstances that could impair their value.  The CDI assets shown in the table below represent the value ascribed to the long-term deposit relationships acquired in three separate bank acquisitions during 2007, a single branch acquisition in the quarter ended September 30, 2013, and the Branch Acquisition in the quarter ended June 30, 2014.  These intangible assets are being amortized using an accelerated method over estimated useful lives of three to eight years.  The CDI assets are not estimated to have a significant residual value.
	The following table summarizes the changes in the Company’s core deposit intangibles for the nine months ended September 30, 2014 and the year ended December 31, 2013 (in thousands):
		CDI
	Balance, December 31, 2012	$	4,230
	Additions through acquisitions	160
	Amortization	(1,941		)
	Balance, December 31, 2013	2,449
	Additions through acquisitions	2,372
	Amortization	(1,459		)
	Balance, September 30, 2014	$	3,362
	The following table presents the estimated amortization expense with respect to intangibles for the periods indicated (in thousands):
			CDI
	Remainder of 2014		$	531
	2015		1,007
	2016		353
	2017		321
	2018		296
	Thereafter		854
			$	3,362
	Mortgage Servicing Rights:  Mortgage servicing rights are reported in other assets. Mortgage servicing rights are initially recorded at fair value and are amortized in proportion to, and over the period of, the estimated future net servicing income of the underlying financial assets.  Mortgage servicing rights are subsequently evaluated for impairment based upon the fair value of the rights compared to the amortized cost (remaining unamortized initial fair value).  If the fair value is less than the amortized cost, a valuation allowance is created through an impairment charge to servicing fee income.   However, if the fair value is greater than the amortized cost, the amount above the amortized cost is not recognized in the carrying value.  During the three and nine months ended September 30, 2014, the Company did not record an impairment charge.  During the three and nine months ended September 30, 2013, the Company reversed $400,000 and $1.0 million, respectively, of valuation allowance for previously recorded impairment charges. Loans serviced for others totaled $1.219 billion and $1.116 billion at September 30, 2014 and December 31, 2013, respectively.  Custodial accounts maintained in connection with this servicing totaled $4.2 million and $5.4 million at September 30, 2014 and December 31, 2013, respectively.
	An analysis of our mortgage servicing rights, net of valuation allowances, for the three and nine months ended September 30, 2014 and 2013 is presented below (in thousands):
		Three Months Ended						Nine Months Ended
		30-Sep						30-Sep
		2014			2013			2014			2013
	Balance, beginning of the period	$	8,481		$	7,036		$	8,086		$	6,244
	Amounts capitalized	846			769			2,215			2,352
	Amortization (1)	(543		)	(520		)	(1,517		)	(1,911		)
	Valuation adjustments in the period	—			400			—			1,000
	Balance, end of the period (2)	$	8,784		$	7,685		$	8,784		$	7,685
	(1)	Amortization of mortgage servicing rights is recorded as a reduction of loan servicing income and any unamortized balance is fully written off if the loan repays in full.
	(2)	There was no valuation allowance as of September 30, 2014 and a $300,000 valuation allowance as of September 30, 2013.

DEPOSITS_AND_CUSTOMER_REPURCHA

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS	9 Months Ended
	Sep. 30, 2014
Banking and Thrift [Abstract]	'
DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS	'
	DEPOSITS AND RETAIL REPURCHASE AGREEMENTS
	Deposits consisted of the following at September 30, 2014 and December 31, 2013 (dollars in thousands):
		September 30, 2014						December 31, 2013
		Amount			Percent of Total			Amount				Percent of Total
	Non-interest-bearing accounts	$	1,304,720		32.7	%		$	1,115,346			30.8	%
	Interest-bearing checking	429,876			10.8			422,910				11.7
	Regular savings accounts	899,868			22.5			798,764				22.1
	Money market accounts	503,660			12.6			408,211				11.3
	Total transaction and saving accounts	3,138,124			78.6			2,745,231				75.9
	Certificates of deposit	852,994			21.4			872,695				24.1
	Total deposits	$	3,991,118		100	%		$	3,617,926			100	%
	Included in total deposits:
	Public fund transaction accounts	$	99,519		2.5	%		$	87,521			2.4	%
	Public fund interest-bearing certificates	48,508			1.2			51,465				1.4
	Total public deposits	$	148,027		3.7	%		$	138,986			3.8	%
	Total brokered deposits	$	41,249		1	%		$	4,291			0.1	%
	Certificate of deposit accounts by total balance at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014			December 31, 2013
	Certificates of deposit less than $100,000	$	405,788		$	386,745
	Certificates of deposit $100,000 through $250,000	285,239			308,130
	Certificates of deposit more than $250,000	161,967			177,820
	Total certificates of deposit	$	852,994		$	872,695
	Scheduled maturities and repricing of certificate accounts at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014			December 31, 2013
	Certificates which mature or reprice:
	Within one year or less	$	641,098		$	660,394
	After one year through two years	121,166			117,789
	After two years through three years	47,563			47,362
	After three years through four years	20,309			26,443
	After four years through five years	17,673			17,075
	After five years	5,185			3,632
	Total certificates of deposit	$	852,994		$	872,695
	The following table presents the geographic concentration of deposits at September 30, 2014 (dollars in thousands):
		Washington			Oregon				Idaho				Total
	Total deposits	$	2,889,675		$	864,869			$	236,574			$	3,991,118
	Percent of total deposits	72.4		%	21.7		%		5.9		%		100		%
	In addition to deposits, the banks also offer retail repurchase agreements which are customer funds that are primarily associated with sweep account arrangements tied to transaction deposit accounts.  While the banks include these collateralized borrowings in other borrowings reported in our Consolidated Statements of Financial Condition, these accounts primarily represent customer utilization of our cash management services and related deposit accounts.
	The following table presents retail repurchase agreement balances as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014			December 31, 2013
	Retail repurchase agreements	$	67,605		$	83,056

FAIR_VALUE_ACCOUNTING_AND_MEAS

FAIR VALUE ACCOUNTING AND MEASUREMENT	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE ACCOUNTING AND MEASUREMENT	'
	FAIR VALUE ACCOUNTING AND MEASUREMENT
	The Company measures and discloses certain assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (that is, not a forced liquidation or distressed sale). GAAP (ASC 820, Fair Value Measurements) establishes a consistent framework for measuring fair value and disclosure requirements about fair value measurements. Among other things, the accounting standard requires the reporting entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s estimates for market assumptions. These two types of inputs create the following fair value hierarchy:
	•	Level 1 – Quoted prices in active markets for identical instruments. An active market is a market in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available.
	•	Level 2 – Observable inputs other than Level 1 including quoted prices in active markets for similar instruments, quoted prices in less active markets for identical or similar instruments, or other observable inputs that can be corroborated by observable market data.
	•	Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation; also includes observable inputs from non-binding single dealer quotes not corroborated by observable market data.
	The estimated fair value amounts of financial instruments have been determined by the Company using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize at a future date. The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts. In addition, reasonable comparability between financial institutions may not be likely due to the wide range of permitted valuation techniques and numerous estimates that must be made given the absence of active secondary markets for certain financial instruments. This lack of uniform valuation methodologies also introduces a greater degree of subjectivity to these estimated fair values. Transfers between levels of the fair value hierarchy are deemed to occur at the end of the reporting period.
	Items Measured at Fair Value on a Recurring Basis:
	Banner records trading account securities, securities available-for-sale, FHLB advances, junior subordinated debentures and certain derivative transactions at fair value on a recurring basis.
	•	Investment securities primarily consist of U.S. Government and agency obligations, municipal bonds, corporate bonds, single issue trust preferred securities (TPS), pooled trust preferred collateralized debt obligation securities (TRUP CDO), mortgage-backed securities, asset-backed securities, equity securities and certain other financial instruments.
	From mid-2008 through the current quarter, the lack of active markets and market participants for certain securities resulted in an increase in Level 3 measurements. In particular, the market for our TRUP CDO securities has been generally inactive during this period. This was evidenced first by a significant widening of the bid-ask spread in the brokered markets in which TRUP CDOs trade and then by a significant decrease in the volume of trades relative to historical levels. The new issue market also has been inactive as almost no new TRUP CDOs have been issued since 2007. There are still very few market participants who are willing and/or able to transact for these securities. Thus, a low market price for a particular bond may only provide evidence of stress in the credit markets in general rather than being an indicator of credit problems with a particular issuer or of the fair value of the security. As of September 30, 2014, Banner owned $20 million in par value of these securities.
	Given these conditions in the debt markets and the absence of observable transactions in the secondary and new issue markets, management determined that for the TRUP CDOs at September 30, 2014 and December 31, 2013:
	•	The few observable transactions and market quotations that were available were not reliable for purposes of determining fair value,
	•	An income valuation approach technique (present value technique) that maximizes the use of relevant observable inputs and minimizes the use of unobservable inputs was equally or more representative of fair value than the market approach valuation technique, and
	•	The Company’s TRUP CDOs should be classified exclusively within Level 3 of the fair value hierarchy because of the significant assumptions required to determine fair value at the measurement date.
	The TRUP CDO valuations were derived using input from independent third parties who used proprietary cash flow models for analyzing collateralized debt obligations. Their approaches to determining fair value involve considering the credit quality of the collateral, assuming a level of defaults based on the probability of default of each underlying trust preferred security, creating expected cash flows for each TRUP CDO security and discounting that cash flow at an appropriate risk-adjusted rate plus a liquidity premium.
	Where appropriate, management reviewed the valuation methodologies and assumptions used by the independent third party providers and determined that the fair value estimates were reasonable and utilized those estimates in the Company’s reported financial statements. For one TRUP CDO, management became aware that a marketplace auction occurred one day after quarter-end that would redeem this security at par in the fourth quarter. That successful auction caused management to increase the fair value of this security to par and resulted in the recognition of a $2.3 million fair value gain on this security in the quarter ended September 30, 2014. The aggregate result of the fair value analysis of all the Level 3 TRUP CDO measurements was a fair value gain of $1.9 million in the quarter ended September 30, 2014 and a fair value gain of $4.8 million in the nine months ended September 30, 2014.
	At September 30, 2014, Banner also owned approximately $19 million in amortized cost of single issuer TPS securities for which no direct market data or independent valuation source is available. Similar to the TRUP CDOs above, there were too few, if any, issuances of new TPS securities or sales of existing TPS securities to provide Level 1 or even Level 2 fair value measurements for these securities. Management, therefore, utilized a discounted cash-flow model to calculate the present value of each security’s expected future cash flows to determine their respective fair values. Management took into consideration the limited market data that was available regarding similar securities and assessed the performance of the three individual issuers of TPS securities owned by the Company. In the current quarter, the Company again sought input from independent third parties to help it establish an appropriate set of parameters to identify a reasonable range of discount rates for use in its fair value model. Management concluded that market yields have been relatively stable in the quarter ended September 30, 2014 and that the indicated spreads and implied yields for non-investment grade securities as well as the yields associated with individual issuers in the third party analyst reports continue to support that a 500 basis point spread over the three-month LIBOR index, the same spread as used in the quarter ended June 30, 2014, was still a reasonable basis for determining an appropriate discount rate to estimate the fair value of these securities. These factors were then incorporated into the model at September 30, 2014, where a discount rate equal to three-month LIBOR plus 500 basis points was used to calculate the respective fair values of these securities. The result of this Level 3 fair value measurement was a fair value gain of $35,000 in the quarter ended September 30, 2014 and a fair value gain of $570,000 for the nine months ended September 30, 2014. The Company has and will continue to assess the appropriate fair value hierarchy for determination of fair values on TRUP CDO and TPS securities on a quarterly basis. For all other trading securities and securities available-for-sale we used matrix pricing models from investment reporting and valuation services. Management considers this to be a Level 2 input method.
	•	Fair valuations for FHLB advances are estimated using fair market values provided by the lender, the FHLB of Seattle. The FHLB of Seattle prices advances by discounting the future contractual cash flows for individual advances using its current cost of funds curve to provide the discount rate. Management considers this to be a Level 2 input method.
	•	The fair valuations of junior subordinated debentures (TPS-related debt that the Company has issued) were also valued using discounted cash flows. These debentures carry interest rates that reset quarterly, using the three-month LIBOR index plus spreads of 1.38% to 3.35%.  While the quarterly reset of the index on this debt would seemingly keep its fair value reasonably close to book value, the disparity in the fixed spreads above the index and the inability to determine realistic current market spreads, due to lack of new issuances and trades, resulted in having to rely more heavily on assumptions about what spread would be appropriate if market transactions were to take place. In periods prior to the third quarter of 2008, the discount rate used was based on recent issuances or quotes from brokers on the date of valuation for comparable bank holding companies and was considered to be a Level 2 input method. However, as noted above in the discussions of TPS and TRUP CDOs, due to the unprecedented disruption of certain financial markets, management concluded that there were insufficient transactions or other indicators to continue to reflect these measurements as Level 2 inputs.  Due to this reliance on assumptions and not on directly observable transactions, management believes fair value for these instruments should follow a Level 3 input methodology. Since the discount rate used in the fair value modeling is the most sensitive unobservable estimate in the calculation, the Company again utilized input from the same independent third party noted above to help it establish an appropriate set of parameters to identify a reasonable range of discount rates for use in its fair value model. In valuing the debentures at September 30, 2014, management evaluated the general market for credit spreads as noted above and for the discount rate used the period-ending three-month LIBOR plus 500 basis points. As noted above in the discussion about single-issuer TPS securities, since market spreads have been relatively stable in the recent period we used the same spread as used in the quarter ended June 30, 2014, resulting in a fair value loss on these instruments of $311,000 for the quarter ended September 30, 2014. The fair value adjustment in the current period was attributed to the passage of time on the years to maturity in the discounted present value calculation used to estimate the fair value.
	•	Derivative instruments include interest rate commitments related to one- to four-family loans and residential mortgage-backed securities and interest rate swaps.  The fair value of interest rate lock commitments and forward sales commitments are estimated using quoted or published market prices for similar instruments, adjusted for factors such as pull-through rate assumptions based on historical trends, where appropriate.  The fair value of interest rate swaps is determined by using current market quotes on similar instruments provided by active broker/dealers in the swap market.  Management considers these to be Level 2 input methods. The changes in the fair value of all of these derivative instruments are primarily attributable to changes in the level of market interest rates.  The Company has elected to record the fair value of these derivative instruments on a net basis.
	The following tables present financial assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy of the fair value measurements for those assets as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
		Level 1				Level 2			Level 3			Total
	Assets:
	Securities—available-for-sale
	U.S. Government and agency	$	—			$	43,293		$	—		$	43,293
	Municipal bonds	—				49,679			—			49,679
	Corporate bonds	—				5,049			—			5,049
	Mortgage-backed or related securities	—				310,403			—			310,403
	Asset-backed securities	—				25,321			—			25,321
		—				433,745			—			433,745
	Securities—trading
	U.S. Government and agency	—				1,494			—			1,494
	Municipal bonds	—				1,707			—			1,707
	TPS and TRUP CDOs	—				—			29,013			29,013
	Mortgage-backed or related securities	—				18,800			—			18,800
	Equity securities and other	—				62			—			62
		—				22,063			29,013			51,076
	Derivatives
	Interest rate lock commitments	—				226			—			226
	Interest rate swaps	—				4,944			—			4,944
		$	—			$	460,978		$	29,013		$	489,991
	Liabilities:
	Advances from FHLB at fair value	$	—			$	250		$	—		$	250
	Junior subordinated debentures net of unamortized deferred issuance costs at fair value	—				—			77,624			77,624
	Derivatives
	Interest rate sales forward commitments, net	—				33			—			33
	Interest rate swaps	—				4,944			—			4,944
		$	—			$	5,227		$	77,624		$	82,851
		December 31, 2013
		Level 1				Level 2			Level 3			Total
	Assets:
	Securities—available-for-sale
	U.S. Government and agency	$	—			$	58,660		$	—		$	58,660
	Municipal bonds	—				52,855			—			52,855
	Corporate bonds	—				6,964			—			6,964
	Mortgage-backed or related securities	—				326,610			—			326,610
	Asset-backed securities	—				25,191			—			25,191
		—				470,280			—			470,280
	Securities—trading
	U.S. Government and agency	—				1,481			—			1,481
	Municipal bonds	—				5,023			—			5,023
	TPS and TRUP CDOs	—				—			35,140			35,140
Mortgage-backed or related securities	—				20,760			—			20,760
Equity securities and other	—				68			—			68
	—				27,332			35,140			62,472
Derivatives
Interest rate lock commitments	—				130			—			130
Interest rate swaps	—				4,946			—			4,946
	$	—			$	502,688		$	35,140		$	537,828
Liabilities:
Advances from FHLB at fair value	$	—			$	27,250		$	—		$	27,250
Junior subordinated debentures net of unamortized deferred issuance costs at fair value	—				—			73,928			73,928
Derivatives
Interest rate sales forward commitments, net	—				43			—			43
Interest rate swaps	—				4,946			—			4,946
	$	—			$	32,239		$	73,928		$	106,167
The following table provides a reconciliation of the assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the three and nine months ended September 30, 2014 and 2013 (in thousands):
	Three Months Ended							Nine Months Ended
	September 30, 2014							September 30, 2014
	Level 3 Fair Value Inputs							Level 3 Fair Value Inputs
	TPS and TRUP CDOs				Borrowings—Junior Subordinated Debentures			TPS and TRUP			Borrowings—
								CDOs			Junior
											Subordinated
											Debentures
Beginning balance	$	38,529			$	77,313		$	35,140		$	73,928
Total gains or losses recognized
Assets gains, including OTTI	1,969				—			5,389			—
Liabilities losses	—				311			—			3,696
Maturities and paydowns net of discount amortization	(11,485		)		—			(11,516		)	—
Ending balance at September 30, 2014	$	29,013			$	77,624		$	29,013		$	77,624
	Three Months Ended							Nine Months Ended
	September 30, 2013							September 30, 2013
	Level 3 Fair Value Inputs							Level 3 Fair Value Inputs
	TPS and TRUP CDOs				Borrowings—Junior Subordinated Debentures			TPS and TRUP			Borrowings—
								CDOs			Junior
											Subordinated
											Debentures
Beginning balance	$	35,105			$	73,471		$	35,741		$	73,063
Total gains or losses recognized
Assets gains (losses), including OTTI	(10		)		—			(646		)	—
Liabilities losses	—				166			—			574
Ending balance at September 30, 2013	$	35,095			$	73,637		$	35,095		$	73,637
The Company has elected to continue to recognize the interest income and dividends from the securities reclassified to fair value as a component of interest income as was done in prior years when they were classified as available-for-sale.  Interest expense related to the FHLB advances and junior subordinated debentures continues to be measured based on contractual interest rates and reported in interest expense.  The change in fair market value of these financial instruments has been recorded as a component of other operating income.
Items Measured at Fair Value on a Non-recurring Basis:
Impaired loans are periodically evaluated to determine if valuation adjustments, or partial write-downs, should be recorded. The need for valuation adjustments arises when observable market prices or current appraised values of collateral indicate a shortfall in collateral value or discounted cash flows indicate a shortfall compared to current carrying values of the related loan. If the Company determines that the value of the impaired loan is less than the carrying value of the loan, the Company either establishes an impairment reserve as a specific component of the allowance for loan and lease losses (ALLL) or charges off the impaired amount. These valuation adjustments are considered non-recurring fair value adjustments. The remaining impaired loans are evaluated for reserve needs in homogenous pools within the Company’s ALLL methodology. As of September 30, 2014, the Company reviewed all of its adversely classified loans totaling $75 million and identified $50 million which were considered impaired. Of those $50 million in impaired loans, $36 million were individually evaluated to determine if valuation adjustments, or partial write-downs, should be recorded, or if specific impairment reserves should be established. The $36 million had original carrying values of $38 million which have been reduced by partial write-downs totaling $2 million. In addition to these write-downs, in order to bring the impaired loan balances to fair value, Banner has also established $3 million in specific reserves on these impaired loans. Impaired loans that were collectively evaluated for reserve purposes within homogenous pools totaled $14 million and were found to require allowances totaling $266,000. The valuation inputs for impaired loans are considered to be Level 3 inputs.
The Company records REO (acquired through a lending relationship) at fair value on a non-recurring basis. All REO properties are recorded at the lower of the estimated fair value of the properties, less expected selling costs, or the carrying amount of the defaulted loans. From time to time, non-recurring fair value adjustments to REO are recorded to reflect partial write-downs based on an observable market price or current appraised value of property. Banner considers any valuation inputs related to REO to be Level 3 inputs. The individual carrying values of these assets are reviewed for impairment at least annually and any additional impairment charges are expensed to operations. For the three months ended September 30, 2014, the Company recognized no impairment charges related to REO assets, compared to $191,000 for the same quarter one year earlier, and for the nine months ended September 30, 2014, the Company recognized $37,000 in impairment charges compared to $490,000 for the same period one year ago.
The following tables present financial assets measured at fair value on a non-recurring basis and the level within the fair value hierarchy of the fair value measurements for those assets as of September 30, 2014 and December 31, 2013 (in thousands):
	At or For the Nine Months Ended September 30, 2014
	Level 1				Level 2			Level 3			Total		Net Gains/(Losses) Recognized During the Period
Impaired loans	$	—			$	—		$	5,298		$	5,298	$	(2,828	)
REO	—				—			3,928			3,928		(458		)
	At or For the Year Ended December 31, 2013
	Level 1				Level 2			Level 3			Total		Net Gains/(Losses) Recognized During the Period
Impaired loans	$	—			$	—		$	10,627		$	10,627	$	(4,890	)
REO	—				—			4,044			4,044		(853		)
Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3):
The following table provides a description of the valuation technique, unobservable inputs, and qualitative information about the unobservable inputs for the Company's assets and liabilities classified as Level 3 and measured at fair value on a recurring and nonrecurring basis at September 30, 2014 and December 31, 2013:
						Weighted Average Rate
Financial Instruments		Valuation Techniques		Unobservable Inputs		September 30, 2014		31-Dec-13
TPS securities		Discounted cash flows		Discount rate		5.24	%	5.5	%
TRUP CDOs		Discounted cash flows		Discount rate		3.99		3.85
Junior subordinated debentures		Discounted cash flows		Discount rate		5.24		5.5
Impaired loans		Discounted cash flows		Discount rate		Various		Various
		Collateral Valuations		Market values		n/a		n/a
REO		Appraisals		Market values		n/a		n/a
TPS and TRUP CDOs: Management believes that the credit risk-adjusted spread used to develop the discount rate utilized in the fair value measurement of TPS and TRUP CDOs is indicative of the risk premium a willing market participant would require under current market conditions for instruments with similar contractual rates and terms and conditions and issuers with similar credit risk profiles and with similar expected probability of default. Management attributes the change in fair value of these instruments, compared to their par value, primarily to perceived general market adjustments to the risk premiums for these types of assets subsequent to their issuance.
Junior subordinated debentures: Similar to the TPS and TRUP CDOs discussed above, management believes that the credit risk-adjusted spread utilized in the fair value measurement of the junior subordinated debentures is indicative of the risk premium a willing market participant would require under current market conditions for an issuer with Banner's credit risk profile. Management attributes the change in fair value of the junior subordinated debentures, compared to their par value, primarily to perceived general market adjustments to the risk premiums for these types of liabilities subsequent to their issuance. Future contractions in the risk adjusted spread relative to the spread currently utilized to measure the Company's junior subordinated debentures at fair value as of September 30, 2014, or the passage of time, will result in negative fair value adjustments. At September 30, 2014, the discount rate utilized was based on a credit spread of 500 basis points and three-month LIBOR of 24 basis points.
Impaired loans: Loans are considered impaired when, based on current information and events, management determines that it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Factors involved in determining impairment include, but are not limited to, the financial condition of the borrower, the value of the underlying collateral and the current status of the economy. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan's effective interest rate or, as a practical expedient, at the loan's observable market price or the fair value of collateral if the loan is collateral dependent. If this practical expedient is used, the impaired loans are considered to be held at fair value. Subsequent changes in the value of impaired loans are included within the provision for loan losses in the same manner in which impairment initially was recognized or as a reduction in the provision that would otherwise be reported.
REO: Fair value adjustments on REO are based on updated real estate appraisals which are based on current market conditions. In many of our markets real estate sales are still slow and prices are negatively affected by an over-supply of properties for sale. These market conditions decrease the amount of comparable sales data and increase the reliance on estimates and assumptions about current and future market conditions and could negatively affect our operating results.
Fair Values of Financial Instruments:
The following table presents estimated fair values of the Company’s financial instruments as of September 30, 2014 and December 31, 2013, whether or not measured at fair value in the consolidated Statements of Financial Condition.  The estimated fair value amounts have been determined by the Company using available market information and appropriate valuation methodologies.  However, considerable judgment is necessary to interpret market data in the development of the estimates of fair value.  Accordingly, the estimates presented herein are not necessarily indicative of the amounts the Company could realize in a current market exchange.  The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts.  The carrying value and estimated fair value of financial instruments are as follows (in thousands):
	September 30, 2014							December 31, 2013
	Carrying Value				Estimated			Carrying Value			Estimated
					Fair Value						Fair Value
Assets:
Cash and due from banks	$	151,725			$	151,725		$	137,349		$	137,349
Securities—trading	51,076				51,076			62,472			62,472
Securities—available-for-sale	433,745				433,745			470,280			470,280
Securities—held-to-maturity	133,069				138,754			102,513			103,610
Loans receivable held for sale	6,949				7,044			2,734			2,751
Loans receivable	3,799,746				3,676,346			3,415,711			3,297,936
FHLB stock	29,106				29,106			35,390			35,390
Bank-owned life insurance	63,293				63,293			61,945			61,945
Mortgage servicing rights	8,784				12,585			8,086			11,529
Derivatives	5,170				5,170			5,076			5,076
Liabilities:
Demand, interest checking and money market accounts	2,238,256				2,001,116			1,946,467			1,697,095
Regular savings	899,868				794,624			798,764			695,863
Certificates of deposit	852,994				846,973			872,695			867,904
FHLB advances at fair value	250				250			27,250			27,250
Junior subordinated debentures at fair value	77,624				77,624			73,928			73,928
Other borrowings	67,605				67,605			83,056			83,056
Derivatives	4,977				4,977			4,989			4,989
Fair value estimates, methods, assumptions and the level within the fair value hierarchy of the fair value measurements are set forth below for the Company’s financial and off-balance-sheet instruments:
Cash and Due from Banks:  The carrying amount of these items is a reasonable estimate of their fair value. These values are considered Level 1 measures.
Securities:  The estimated fair values of investment securities and mortgaged-backed securities are priced using current active market quotes, if available, which are considered Level 1 measurements.  For most of the portfolio, matrix pricing based on the securities’ relationship to other benchmark quoted prices is used to establish the fair value.  These measurements are considered Level 2.  Due to the continued credit concerns in the capital markets and inactivity in the trust preferred markets that have limited the observability of market spreads for some of the Company’s TPS and TRUP CDO securities (see earlier discussion above in determining the securities’ fair market value), management has classified these securities as a Level 3 fair value measure.
Loans Receivable:  Fair values are estimated first by stratifying the portfolios of loans with similar financial characteristics.  Loans are segregated by type such as multifamily real estate, residential mortgage, nonresidential mortgage, commercial/agricultural, consumer and other.  Each loan category is further segmented into fixed- and adjustable-rate interest terms and by performing and non-performing categories.  A preliminary estimate of fair value is then calculated based on discounted cash flows using as a discount rate the current rate offered on similar products, plus an adjustment for liquidity to reflect the non-homogeneous nature of the loans.  The preliminary estimate is then further reduced by the amount of the allowance for loan losses to arrive at a final estimate of fair value.  Fair value for significant non-performing loans is also based on recent appraisals or estimated cash flows discounted using rates commensurate with risk associated with the estimated cash flows.  Assumptions regarding credit risk, cash flows and discount rates are judgmentally determined using available market information and specific borrower information.  Management considers this to be a Level 2 measure.
FHLB Stock:  The fair value is based upon the redemption value of the stock which equates to its carrying value.  This fair value is considered a Level 3 measure.
Mortgage Servicing Rights:  Fair values are estimated based on current pricing for sales of servicing for new loans adjusted up or down based on the serviced loan’s interest rate versus current new loan rates.  Management considers this to be a Level 3 measure.
Deposit Liabilities: The fair value of deposits with no stated maturity, such as savings and checking accounts, is estimated by applying decay rate assumptions to segregated portfolios of similar deposit types to generate cash flows which are then discounted using short-term market interest rates.  The market value of certificates of deposit is based upon the discounted value of contractual cash flows.  The discount rate is determined using the rates currently offered on comparable instruments. Fair value estimates for deposits are considered Level 3 measures.
FHLB Advances and Other Borrowings:  Fair valuations for Banner’s FHLB advances are estimated using fair market values provided by the lender, the FHLB of Seattle.  The FHLB of Seattle prices advances by discounting the future contractual cash flows for individual advances using its current cost of funds curve to provide the discount rate.  This is considered to be a Level 2 input method.  Other borrowings are priced using discounted cash flows to the date of maturity based on using current rates at which such borrowings can currently be obtained. This fair value is considered to be a Level 3 measure.
Junior Subordinated Debentures:  Due to continued credit concerns in the capital markets and inactivity in the trust preferred markets that have limited the observability of market spreads (see earlier discussion above in determining the junior subordinated debentures’ fair market value), junior subordinated debentures have been classified as a Level 3 fair value measure.  Management believes that the credit risk adjusted spread and resulting discount rate utilized is indicative of those that would be used by market participants.
Derivatives:  Derivatives include interest rate swap agreements, interest rate lock commitments to originate loans held for sale and forward sales contracts to sell loans and securities related to mortgage banking activities. Fair values for these instruments, which generally change as a result of changes in the level of market interest rates, are estimated based on dealer quotes and secondary market sources. Management considers these to be Level 2 inputs.
Off-Balance Sheet Items: Off-balance sheet financial instruments include unfunded commitments to extend credit, including standby letters of credit, and commitments to purchase investment securities. The fair value of these instruments is not considered to be material. Other commitments to fund loans totaled $1.235 billion and $1.097 billion at September 30, 2014 and December 31, 2013, respectively, and have no carrying value at both dates, representing the cost of such commitments. There were no commitments to purchase securities at September 30, 2014 or at December 31, 2013.
Limitations: The fair value estimates presented herein are based on pertinent information available to management as of September 30, 2014 and December 31, 2013.  Although management is not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued for purposes of these financial statements since that date and, therefore, current estimates of fair value may differ significantly from the amounts presented herein.
Fair value estimates are based on existing on- and off-balance-sheet financial instruments without attempting to estimate the value of anticipated future business.  The fair value has not been estimated for assets and liabilities that are not considered financial instruments.  Significant assets and liabilities that are not financial instruments include the deferred tax assets/liabilities; land, buildings and equipment; costs in excess of net assets acquired; and real estate held for sale.

INCOME_TAXES_AND_DEFERRED_TAXE

INCOME TAXES AND DEFERRED TAXES	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES AND DEFERRED TAXES	'
	INCOME TAXES AND DEFERRED TAXES
	The Company files a consolidated income tax return including all of its wholly-owned subsidiaries on a calendar year basis. Income taxes are accounted for using the asset and liability method. Under this method, a deferred tax asset or liability is determined based on the enacted tax rates which will be in effect when the differences between the financial statement carrying amounts and tax bases of existing assets and liabilities are expected to be reported in the Company’s income tax returns. The effect on deferred taxes of a change in tax rates is recognized in income in the period of change. A valuation allowance is recognized as a reduction to deferred tax assets when management determines it is more likely than not that deferred tax assets will not be available to offset future income tax liabilities.
	Accounting standards for income taxes prescribe a recognition threshold and measurement process for financial statement recognition and measurement of uncertain tax positions taken or expected to be taken in a tax return, and also provide guidance on the de-recognition of previously recorded benefits and their classification, as well as the proper recording of interest and penalties, accounting in interim periods, disclosures and transition. The Company periodically reviews its income tax positions based on tax laws and regulations and financial reporting considerations, and records adjustments as appropriate. This review takes into consideration the status of current taxing authorities’ examinations of the Company’s tax returns, recent positions taken by the taxing authorities on similar transactions, if any, and the overall tax environment.
	As of September 30, 2014, the Company had an insignificant amount of unrecognized tax benefits for uncertain tax positions, none of which would materially affect the effective tax rate if recognized. The Company does not anticipate that the amount of unrecognized tax benefits will significantly increase or decrease in the next twelve months. The Company’s policy is to recognize interest and penalties on unrecognized tax benefits in the income tax expense. The Company files consolidated income tax returns in U.S. federal jurisdiction and in the Oregon and Idaho state jurisdictions. The tax years which remain subject to examination by the taxing authorities are the years ended December 31, 2013, 2012, 2011, and 2010. Tax years 2006 - 2009 are not open for assessment of additional tax, but remain open for adjustments to the amount of NOLs, credit, and other carryforwards utilized in open years or to be utilized in the future.

CALCULATION_OF_WEIGHTED_AVERAG

CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS (LOSS) PER SHARE (EPS)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS (LOSS) PER SHARE (EPS)	'
	CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS PER SHARE (EPS)
	The following table reconciles basic to diluted weighted shares outstanding used to calculate earnings per share data dollars and shares (in thousands, except per share data):
		Three Months Ended				Nine Months Ended
		30-Sep				30-Sep
		2014		2013		2014		2013
	Net income	$	14,843	$	11,665	$	42,421	$	35,001
	Basic weighted average shares outstanding	19,373		19,338		19,353		19,348
	Plus unvested restricted stock	47		59		33		55
	Diluted weighted shares outstanding	19,420		19,397		19,386		19,403
	Earnings per common share
	Basic	$	0.77	$	0.6	$	2.19	$	1.81
	Diluted	$	0.76	$	0.6	$	2.19	$	1.8
	Options to purchase an additional 19,964 shares of common stock as of September 30, 2014 were not included in the computation of diluted earnings per share because their exercise price resulted in them being anti-dilutive. Also, as of September 30, 2014, the warrants originally issued to the U.S. Treasury in the fourth quarter of 2008 to purchase up to $18.6 million (243,998 shares, post reverse-split) of common stock were not included in the computation of diluted EPS for the quarters ended September 30, 2014 and 2013 because the exercise price of the warrants was greater than the average market price of common shares. In June 2013, the Treasury sold the warrants in a public auction. That sale did not change the Company's capital position and did not have any impact on the financial accounting and reporting for these securities.

STOCKBASED_COMPENSATION_PLANS_

STOCK-BASED COMPENSATION PLANS AND STOCK OPTIONS	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
STOCK-BASED COMPENSATION PLANS AND STOCK OPTIONS	'
	STOCK-BASED COMPENSATION PLANS
	The Company operates the following stock-based compensation plans as approved by the shareholders: the 1998 Stock Option Plan, and 2001 Stock Option Plan (collectively the SOPs), the 2012 Restricted Stock and Incentive Bonus Plan, and the 2014 Omnibus Incentive Plan. In addition, the Board approved in 2006 the Long Term Incentive Plan. The purpose of these plans is to promote the success and enhance the value of the Company by providing a means for attracting and retaining highly skilled employees, officers and directors of Banner Corporation and its affiliates and linking their personal interests with those of the Company's shareholders. Under these plans the Company currently has outstanding restricted stock grants, stock options and stock appreciation rights.
	Restricted Stock Grants: Under the 2012 Restricted Stock and Incentive Bonus Plan, which was initially approved on April 24, 2012, the Company is authorized to issue up to 300,000 shares of its common stock to provide a means for attracting and retaining highly skilled officers of Banner Corporation and its affiliates. Shares granted under the Plan have a minimum vesting period of three years. The Plan will continue in effect for a term of ten years, after which no further awards may be granted. The 2012 Restricted Stock Plan was amended on April 23, 2013 to provide for the ability to grant (1) cash-denominated incentive-based awards payable in cash or common stock, including those that are eligible to qualify as qualified performance-based compensation for the purposes of Section 162(m) of the Code and (2) restricted stock awards that qualify as qualified performance-based compensation for the purposes of Section 162(m) of the Code. Vesting requirements may include time-based conditions, performance-based conditions, or market-based conditions. As of September 30, 2014, the Company had granted 267,827 shares of restricted stock from the 2012 Restricted Stock and Incentive Bonus Plan, of which 87,139 shares had vested and 180,688 shares remain unvested. The expense associated with all restricted stock grants was $710,000 and $1.8 million, respectively, for the three and nine-month period ended September 30, 2014 and was $482,000 and $1.0 million, respectively, for the three and nine-month period ended September 30, 2013. Unrecognized compensation expense for these awards as of September 30, 2014 was $4.9 million and will be amortized over the next 33 months.
	Stock Options. Under the SOPs, Banner reserved 2,284,186 shares for issuance pursuant to the exercise of stock options to be granted to directors and employees. Authority to grant additional options under the 1998 Stock Option Plan terminated on July 24, 2008. Authority to grant additional options under the 2001 Stock Option Plan terminated on April 20, 2011. The exercise price of the stock options is set at 100% of the fair market value of the stock price on the date of grant. Options granted vest at a rate of 20% per year from the date of grant and any unexercised incentive stock options will expire ten years after date of grant or 90 days after employment or service ends.
	During the nine months ended September 30, 2014 and 2013, the Company did not grant any stock options. Additionally, there were no significant modifications made to any stock option grants during the period. The fair values of stock options granted are amortized as compensation expense on a straight-line basis over the vesting period of the grant.
	There were no stock-based compensation costs related to the SOPs for the quarters ended September 30, 2014 or September 30, 2013. The SOPs’ stock option grant compensation costs are generally based on the fair value calculated from the Black-Scholes option pricing on the date of the grant award. The Black-Scholes model assumes an expected stock price volatility based on the historical volatility at the date of the grant and an expected term based on the remaining contractual life of the vesting period. The Company bases the estimate of risk-free interest rate on the U.S. Treasury Constant Maturities Indices in effect at the time of the grant. The dividend yield is based on the current quarterly dividend in effect at the time of the grant.
	During the three and nine months ended September 30, 2014 and 2013, there were no exercises of stock options. Cash was not used to settle any equity instruments previously granted. The Company issues shares from authorized but unissued shares upon the exercise of stock options. The Company does not currently expect to repurchase shares from any source to satisfy such obligations under the SOPs.
	Banner Corporation Long-Term Incentive Plan: In June 2006, the Board of Directors adopted the Banner Corporation Long-Term Incentive Plan effective July 1, 2006. The Plan is an account-based type of benefit, the value of which is directly related to changes in the value of Company common stock, dividends declared on Company common stock and changes in Banner Bank’s average earnings rate, and is considered a stock appreciation right (SAR). Each SAR entitles the holder to receive cash upon vesting, equal to the excess of the fair market value of a share of the Company’s common stock on the date of maturity of the SAR over the fair market value of such share on the date granted plus, for some grants, the dividends declared on the stock from the date of grant to the date of vesting. The primary objective of the Plan is to create a retention incentive by allowing officers who remain with the Company or the Banks for a sufficient period of time to share in the increases in the value of Company stock. The Company re-measures the fair value of SARs each reporting period until the award is settled and recognizes changes in fair value and vesting in compensation expense. The Company recognized compensation expense of $16,000 for the three months ended September 30, 2014 and a net reversal of compensation expense of $122,000 for the nine months ended September 30, 2014 due to variations in market value of the underlying stock, compared to compensation expense of $286,000 for the three months ended September 30, 2013 and a compensation expense of $526,000 for the nine months ended September 30, 2013. At September 30, 2014, the aggregate liability related to SARs was $867,000 and was included in deferred compensation.
	Banner Corporation 2014 Omnibus Incentive Plan: The 2014 Plan was approved by shareholders on April 22, 2014. The 2014 Plan provides for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units, other stock-based awards and other cash awards, and provides for vesting requirements which may include time-based or performance-based conditions. The Company has reserved 900,000 shares of its common stock for issuance under the 2014 Plan in connection with exercise of awards. As of September 30, 2014, 9,352 shares had been granted to directors under the 2014 Omnibus Plan.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	Lease Commitments — The Company leases 65 sites under non-cancelable operating leases. The leases contain various provisions for increases in rental rates, based either on changes in the published Consumer Price Index or a predetermined escalation schedule. Substantially all of the leases provide the Company with the option to extend the lease term one or more times following expiration of the initial term.
	Financial Instruments with Off-Balance-Sheet Risk — The Company has financial instruments with off-balance-sheet risk generated in the normal course of business to meet the financing needs of our customers.  These financial instruments include commitments to extend credit, commitments related to standby letters of credit, commitments to originate loans, commitments to sell loans, commitments to buy and sell securities.  These instruments involve, to varying degrees, elements of credit and interest rate risk similar to the risk involved in on-balance sheet items recognized in our Consolidated Statements of Financial Condition.
	Our exposure to credit loss in the event of nonperformance by the other party to the financial instrument from commitments to extend credit and standby letters of credit is represented by the contractual notional amount of those instruments.  We use the same credit policies in making commitments and conditional obligations as for on-balance-sheet instruments.
	Outstanding commitments for which no asset or liability for the notional amount has been recorded consisted of the following at the dates indicated (in thousands):
		Contract or Notional Amount
		September 30, 2014		December 31, 2013
	Commitments to extend credit	$	1,197,737	$	1,073,897
	Standby letters of credit and financial guarantees	10,004		6,990
	Commitments to originate loans	27,272		15,776
	Derivatives also included in Note 16:
	Commitments to originate loans held for sale	31,071		21,434
	Commitments to sell loans secured by one- to four-family residential properties	13,697		9,378
	Commitments to sell securities related to mortgage banking activities	22,468		15,200
	Commitments to extend credit are agreements to lend to a customer, as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Many of the commitments may expire without being drawn upon; therefore, the total commitment amounts do not necessarily represent future cash requirements. Each customer’s creditworthiness is evaluated on a case-by-case basis.  The amount of collateral obtained, if deemed necessary upon extension of credit, is based on management’s credit evaluation of the customer. The type of collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, and income producing commercial properties.
	Standby letters of credit are conditional commitments issued to guarantee a customer’s performance or payment to a third party.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.
	Interest rates on residential one- to four-family mortgage loan applications are typically rate locked (committed) to customers during the application stage for periods ranging from 30 to 60 days, the most typical period being 45 days. Traditionally these loan applications with rate lock commitments had the pricing for the sale of these loans locked with various qualified investors under a best-efforts delivery program at or near the time the interest rate is locked with the customer. The Company then attempts to deliver these loans before their rate locks expired. This arrangement generally required delivery of the loans prior to the expiration of the rate lock. Delays in funding the loans required a lock extension. The cost of a lock extension at times was borne by the customer and at times by the Bank. These lock extension costs have not had a material impact to our operations. In 2012, the Company also began entering into forward commitments at specific prices and settlement dates to deliver either: (1) residential mortgage loans for purchase by secondary market investors (i.e., Freddie Mac or Fannie Mae), or (2) mortgage-backed securities to broker/dealers. The purpose of these forward commitments is to offset the movement in interest rates between the execution of its residential mortgage rate lock commitments with borrowers and the sale of those loans to the secondary market investor. There were no counterparty default losses on forward contracts in the nine months ended September 30, 2014 or September 30, 2013. Market risk with respect to forward contracts arises principally from changes in the value of contractual positions due to changes in interest rates. We limit our exposure to market risk by monitoring differences between commitments to customers and forward contracts with market investors and securities broker/dealers. In the event we have forward delivery contract commitments in excess of available mortgage loans, the transaction is completed by either paying or receiving a fee to or from the investor or broker/dealer equal to the increase or decrease in the market value of the forward contract.
	Legal Proceedings — In the normal course of business, the Company and/or its subsidiaries have various legal proceedings and other contingent matters outstanding. These proceedings and the associated legal claims are often contested and the outcome of individual matters is not always predictable. The claims and counter-claims typically arise during the course of collection efforts on problem loans or with respect to action to enforce liens on properties in which the Company holds a security interest. Based on information known to management at this time, the Company is not a party to any legal proceedings that management believes would have a material adverse effect on the Company's results of operations or consolidated financial position at September 30, 2014.

DERIVATIVES_AND_HEDGING

DERIVATIVES AND HEDGING	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
DERIVATIVES AND HEDGING	'
	DERIVATIVES AND HEDGING
	The Company, through its Banner Bank subsidiary, is party to various derivative instruments that are used for asset and liability management and customer financing needs. Derivative instruments are contracts between two or more parties that have a notional amount and an underlying variable, require no net investment and allow for the net settlement of positions. The notional amount serves as the basis for the payment provision of the contract and takes the form of units, such as shares or dollars. The underlying variable represents a specified interest rate, index, or other component. The interaction between the notional amount and the underlying variable determines the number of units to be exchanged between the parties and influences the market value of the derivative contract. The Company obtains dealer quotations to value its derivative contracts.
	The Company's predominant derivative and hedging activities involve interest rate swaps related to certain term loans and forward sales contracts associated with mortgage banking activities. Generally, these instruments help the Company manage exposure to market risk and meet customer financing needs. Market risk represents the possibility that economic value or net interest income will be adversely affected by fluctuations in external factors such as market-driven interest rates and prices or other economic factors.
	Derivatives Designated in Hedge Relationships
	The Company's fixed rate loans result in exposure to losses in value or net interest income as interest rates change. The risk management objective for hedging fixed rate loans is to effectively convert the fixed rate received to a floating rate. The Company has hedged exposure to changes in the fair value of certain fixed rate loans through the use of interest rate swaps. For a qualifying fair value hedge, changes in the value of the derivatives are recognized in current period earnings along with the corresponding changes in the fair value of the designated hedged item attributable to the risk being hedged.
	In a program brought to Banner Bank through its merger with F&M Bank in 2007, customers received fixed interest rate commercial loans and the Bank subsequently hedged that fixed rate loan by entering into an interest rate swap with a dealer counterparty. The Bank receives fixed rate payments from the customers on the loans and makes similar fixed rate payments to the dealer counterparty on the swaps in exchange for variable rate payments based on the one-month LIBOR index. Some of these interest rate swaps are designated as fair value hedges. Through application of the “short cut method of accounting,” there is an assumption that the hedges are effective. The Bank discontinued originating interest rate swaps under this program in 2008.
	As of September 30, 2014 and December 31, 2013, the notional values or contractual amounts and fair values of the Company's derivatives designated in hedge relationships were as follows (in thousands):
		Asset Derivatives																Liability Derivatives
		September 30, 2014								December 31, 2013								September 30, 2014					December 31, 2013
		Notional/				Fair				Notional/				Fair				Notional/			Fair		Notional/		Fair
		Contract Amount				Value (1)				Contract Amount				Value (1)				Contract Amount			Value (2)		Contract Amount		Value (2)
	Interest rate swaps	$	7,175			$	1,161			$	7,420			$	1,295			$	7,175		$	1,161	$	7,420	$	1,295
	(1)	Included in Loans receivable on the Consolidated Statements of Financial Condition.
	(2)	Included in Other liabilities on the Consolidated Statements of Financial Condition.
	Derivatives Not Designated in Hedge Relationships
	Interest Rate Swaps. Banner Bank has been using an interest rate swap program for commercial loan customers, termed the Back-to-Back Program, since 2010. In the Back-to-Back Program, the Bank provides the client with a variable rate loan and enters into an interest rate swap in which the client receives a variable rate payment in exchange for a fixed rate payment. The Bank offsets its risk exposure by entering into an offsetting interest rate swap with a dealer counterparty for the same notional amount and length of term as the client interest rate swap providing the dealer counterparty with a fixed rate payment in exchange for a variable rate payment. There are also a few interest rate swaps from prior to 2009 that were not designated in hedge relationships that are included in these totals. These swaps do not qualify as designated hedges; therefore, each swap is accounted for as a free standing derivative.
	Mortgage Banking. In the normal course of business, the Company sells originated mortgage loans into the secondary mortgage loan markets. During the period of loan origination and prior to the sale of the loans in the secondary market, the Company has exposure to movements in interest rates associated with written rate lock commitments with potential borrowers to originate loans that are intended to be sold and for closed loans that are awaiting sale and delivery into the secondary market.
	Written loan commitments that relate to the origination of mortgage loans that will be held for resale are considered free-standing derivatives and do not qualify for hedge accounting. Written loan commitments generally have a term of up to 60 days before the closing of the loan. The loan commitment does not bind the potential borrower to enter into the loan, nor does it guarantee that the Company will approve the potential borrower for the loan. Therefore, when determining fair value, the Company makes estimates of expected “fallout” (loan commitments not expected to close), using models which consider cumulative historical fallout rates, current market interest rates and other factors.
	Written loan commitments in which the borrower has locked in an interest rate results in market risk to the Company to the extent market interest rates change from the rate quoted to the borrower. The Company economically hedges the risk of changing interest rates associated with its interest rate lock commitments by entering into forward sales contracts.
	Mortgage loans which are held for sale are subject to changes in fair value due to fluctuations in interest rates from the loan's closing date through the date of sale of the loans into the secondary market. Typically, the fair value of these loans declines when interest rates increase and rises when interest rates decrease. To mitigate this risk, the Company enters into forward sales contracts on a significant portion of these loans to provide an economic hedge against those changes in fair value. Mortgage loans held for sale and the forward sales contracts are recorded at fair value with ineffective changes in value recorded in current earnings as loan sales and servicing income.
	As of September 30, 2014 and December 31, 2013, the notional values or contractual amounts and fair values of the Company's derivatives not designated in hedge relationships were as follows (in thousands):
		Asset Derivatives																Liability Derivatives
		September 30, 2014								December 31, 2013								September 30, 2014					December 31, 2013
		Notional/				Fair				Notional/				Fair				Notional/			Fair		Notional/		Fair
		Contract Amount				Value (1)				Contract Amount				Value (1)				Contract Amount			Value (2)		Contract Amount		Value (2)
	Interest rate swaps	$	136,434			$	3,782			$	135,122			$	3,651			$	136,434		$	3,782	$	135,122	$	3,651
	Mortgage loan commitments	20,477				205				14,107				57				10,593			21		7,326		43
	Forward sales contracts	10,593				21				22,526				73				22,468			12		—		—
		$	167,504			$	4,008			$	171,755			$	3,781			$	169,495		$	3,815	$	142,448	$	3,694
	(1)	Included in Other assets on the Consolidated Statements of Financial Condition, with the exception of those interest rate swaps from prior to 2009 that were not designated in hedge relationships (with a fair value of $603,000 at September 30, 2014 and $791,000 at December 31, 2013), which are included in Loans receivable.
	(2)	Included in Other liabilities on the Consolidated Statements of Financial Condition.
	Gains (losses) recognized in income on non-designated hedging instruments for the three and nine months ended September 30, 2014 and 2013 were as follows (in thousands):
				Three Months Ended								Nine Months Ended
				30-Sep								30-Sep
		Location on Income Statement		2014				2013				2014				2013
	Mortgage loan commitments	Mortgage banking operations		$	(243	)		$	651			$	148			$	(165	)
	Forward sales contracts	Mortgage banking operations		224				(952		)		(42		)		(130		)
				$	(19	)		$	(301	)		$	106			$	(295	)
	The Company is exposed to credit-related losses in the event of nonperformance by the counterparty to these agreements. Credit risk of the financial contract is controlled through the credit approval, limits, and monitoring procedures and management does not expect the counterparties to fail their obligations.
	In connection with the interest rate swaps between Banner Bank and the dealer counterparties, the agreements contain a provision where if Banner Bank fails to maintain its status as a well/adequately capitalized institution, then the counterparty could terminate the derivative positions and Banner Bank would be required to settle its obligations. Similarly, Banner Bank could be required to settle its obligations under certain of its agreements if specific regulatory events occur, such as a publicly issued prompt corrective action directive, cease and desist order, or a capital maintenance agreement that required Banner Bank to maintain a specific capital level. If Banner Bank had breached any of these provisions at September 30, 2014 or December 31, 2013, it could have been required to settle its obligations under the agreements at the termination value. As of September 30, 2014 and December 31, 2013, the termination value of derivatives in a net liability position related to these agreements was $4.6 million and $2.7 million, respectively. The Company generally posts collateral against derivative liabilities in the form of government agency-issued bonds, mortgage-backed securities, or commercial mortgage-backed securities. Collateral posted against derivative liabilities was $9.8 million and $8.9 million as of September 30, 2014 and December 31, 2013, respectively.
	Derivative assets and liabilities are recorded at fair value on the balance sheet and do not take into account the effects of master netting agreements. Master netting agreements allow the Company to settle all derivative contracts held with a single counterparty on a net basis and to offset net derivative positions with related collateral where applicable.
	The following table illustrates the potential effect of the Company's derivative master netting arrangements, by type of financial instrument, on the Company's Statements of Financial Condition as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
														Gross Amounts of Financial Instruments Not Offset in the Statement of Financial Condition
		Gross Amounts Recognized				Amounts offset				Net Amounts				Netting Adjustment Per Applicable Master Netting Agreements				Fair Value			Net Amount
						in the Statement				in the Statement								of Financial Collateral
						of Financial Condition				of Financial Condition								in the Statement
																		of Financial Condition
	Derivative assets
	Interest rate swaps	$	4,944			$	—			$	4,944			$	(212	)		$	—		$	4,732
		$	4,944			$	—			$	4,944			$	(212	)		$	—		$	4,732
	Derivative liabilities
	Interest rate swaps	$	4,944			$	—			$	4,944			$	(212	)		$	(4,520	)	$	212
		$	4,944			$	—			$	4,944			$	(212	)		$	(4,520	)	$	212
		December 31, 2013
														Gross Amounts of Financial Instruments Not Offset in the Statement of Financial Condition
		Gross Amounts Recognized				Amounts offset				Net Amounts				Netting Adjustment Per Applicable Master Netting Agreements				Fair Value			Net Amount
						in the Statement				in the Statement								of Financial Collateral
						of Financial Condition				of Financial Condition								in the Statement
																		of Financial Condition
	Derivative assets
	Interest rate swaps	$	4,946			$	—			$	4,946			$	(554	)		$	—		$	4,392
		$	4,946			$	—			$	4,946			$	(554	)		$	—		$	4,392
Derivative liabilities
Interest rate swaps	$	4,946			$	—			$	4,946			$	(554	)		$	(2,657	)	$	1,735
	$	4,946			$	—			$	4,946			$	(554	)		$	(2,657	)	$	1,735

BASIS_OF_PRESENTATION_AND_CRIT1

BASIS OF PRESENTATION AND CRITICAL ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Accounting	'
	The accompanying unaudited consolidated interim financial statements include the accounts of Banner Corporation (the Company or Banner), a bank holding company incorporated in the State of Washington and its wholly-owned subsidiaries, Banner Bank and Islanders Bank (the Banks).
	These unaudited consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the Securities and Exchange Commission (SEC). In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the financial position and results of operations for the periods presented have been included. Certain information and disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. Certain reclassifications have been made to the 2013 Consolidated Financial Statements and/or schedules to conform to the 2014 presentation. These reclassifications may have affected certain ratios for the prior periods. The effect of these reclassifications is considered immaterial. All significant intercompany transactions and balances have been eliminated.
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the financial statements. Various elements of the Company’s accounting policies, by their nature, are inherently subject to estimation techniques, valuation assumptions and other subjective assessments. In particular, management has identified several accounting policies that, due to the judgments, estimates and assumptions inherent in those policies, are critical to an understanding of Banner’s financial statements. These policies relate to (i) the methodology for the recognition of interest income, (ii) determination of the provision and allowance for loan and lease losses, (iii) the valuation of financial assets and liabilities recorded at fair value, including other-than-temporary impairment (OTTI) losses, (iv) the valuation of intangibles, such as core deposit intangibles and mortgage servicing rights, and (v) the valuation of or recognition of deferred tax assets and liabilities. These policies and judgments, estimates and assumptions are described in greater detail in subsequent notes to the Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations (Critical Accounting Policies) in our Annual Report on Form 10-K for the year ended December 31, 2013 filed with the SEC.  Management believes that the judgments, estimates and assumptions used in the preparation of the financial statements are appropriate based on the factual circumstances at the time.  However, given the sensitivity of the financial statements to these critical accounting policies, the use of other judgments, estimates and assumptions could result in material differences in the Company’s results of operations or financial condition.  Further, subsequent changes in economic or market conditions could have a material impact on these estimates and the Company’s financial condition and operating results in future periods.
	The information included in this Form 10-Q should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2013 as filed with the SEC (2013 Form 10-K).  Interim results are not necessarily indicative of results for a full year.

BUSINESS_COMBINATIONS_BUSINESS1

BUSINESS COMBINATIONS BUSINESS COMBINATIONS (Tables)	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Schedule of Components of Business Acquisition [Table Text Block]	'
	The following table displays the fair value as of the acquisition date for each major class of assets acquired and liabilities assumed (in thousands):
		Fair Value at Acquisition
		20-Jun-14
	Assets:
	Cash	$	127,557
	Loans receivable (contractual amount of $88.3 million)	87,923
	Property and equipment	3,079
	Core deposit intangible	2,372
	Other assets	275
	Total assets	221,206
	Liabilities:
	Deposits	212,085
	Other liabilities	42
	Total liabilities	212,127
	Acquisition bargain purchase gain	$	9,079
Schedule of Acquisition-Related Costs [Text Block]	'
	The operating results of the Company include the operating results produced by the six acquired branches from June 21, 2014 to September 30, 2014. In connection with the acquisition, Banner recognized actual expenses and accrued for anticipated expenses a total of $2.0 million in the quarter ended June 30, 2014. In the quarter ended September 30, 2014, Banner adjusted the accrued estimated expenses to reflect amounts actually incurred, which resulted in a reversal of expenses totaling $494,000 for the quarter. For the nine months ended September 30, 2014, acquisition-related expenses totaled $1.5 million. See the following table of acquisition-related expenses for the three and nine months ended September 30, 2014 as follows (in thousands):
		Three Months Ended September 30, 2014			Nine Months Ended
					30-Sep-14
	Acquisition-related costs recognized in other operating expenses:
	Non-capitalized equipment and repairs	$	70		$	99
	Client communications	(108		)	130
	Information/computer data services	(335		)	297
	Payment and processing expenses	(205		)	66
	Professional services	56			674
	Miscellaneous	28			264
		$	(494	)	$	1,530

INTERESTBEARING_DEPOSITS_AND_S1

INTEREST-BEARING DEPOSITS AND SECURITIES (Tables)	9 Months Ended
	Sep. 30, 2014
Marketable Securities [Line Items]	'
Schedule of Investments	'
	The following table sets forth additional detail regarding our interest-bearing deposits and securities at the dates indicated (includes securities—trading, available-for-sale and held-to-maturity, all at carrying value) (in thousands):
		September 30, 2014		December 31, 2013
	Interest-bearing deposits included in cash and due from banks	$	82,702	$	67,638
	U.S. Government and agency obligations	46,943		61,327
	Municipal bonds:
	Taxable	35,020		34,216
	Tax exempt	137,979		119,588
	Total municipal bonds	172,999		153,804
	Corporate bonds	35,862		44,154
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	56,331		58,117
	One- to four-family residential other	753		1,051
	Multifamily agency guaranteed	269,143		281,319
	Multifamily other	10,476		10,234
	Total mortgage-backed or related securities	336,703		350,721
	Asset-backed securities:
	Student Loan Marketing Association (SLMA)	15,650		15,681
	Other asset-backed securities	9,671		9,510
	Total asset-backed securities	25,321		25,191
	Equity securities (excludes FHLB stock)	62		68
	Total securities	617,890		635,265
	Total interest-bearing deposits and securities	$	700,592	$	702,903
Schedule of Trading Securities	'
	Securities—Trading:  The amortized cost and estimated fair value of securities—trading at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014								December 31, 2013
		Amortized Cost		Fair Value			Percent of Total			Amortized Cost				Fair Value			Percent of Total
	U.S. Government and agency obligations	$	1,340	$	1,494		2.9	%		$	1,370			$	1,481		2.4	%
	Municipal bonds:
	Tax exempt	1,665		1,707			3.4			4,969				5,023			8
	Corporate bonds	37,981		29,013			56.8			49,498				35,140			56.2
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	8,697		9,393			18.4			10,483				11,230			18
	Multifamily agency guaranteed	8,693		9,407			18.4			8,816				9,530			15.3
	Total mortgage-backed or related securities	17,390		18,800			36.8			19,299				20,760			33.3
	Equity securities	14		62			0.1			14				68			0.1
		$	58,390	$	51,076		100	%		$	75,150			$	62,472		100	%
Schedule of Available-for-sale Securities	'
	Securities—Available-for-Sale:  The amortized cost and estimated fair value of securities—available-for-sale at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014
		Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total
	U.S. Government and agency obligations	$	43,565	$	15		$	(287	)		$	43,293			10	%
	Municipal bonds:
	Taxable	19,567		97			(44		)		19,620				4.5
	Tax exempt	29,944		168			(53		)		30,059				6.9
	Total municipal bonds	49,511		265			(97		)		49,679				11.4
	Corporate bonds	5,000		49			—				5,049				1.2
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	44,897		792			(437		)		45,252				10.4
	One- to four-family residential other	712		41			—				753				0.2
	Multifamily agency guaranteed	255,519		438			(2,035		)		253,922				58.6
	Multifamily other	10,529		11			(64		)		10,476				2.4
	Total mortgage-backed or related securities	311,657		1,282			(2,536		)		310,403				71.6
	Asset-backed securities:
	SLMA	15,486		164			—				15,650				3.6
	Other asset-backed securities	10,053		—			(382		)		9,671				2.2
	Total asset-backed securities	25,539		164			(382		)		25,321				5.8
		$	435,272	$	1,775		$	(3,302	)		$	433,745			100	%
		December 31, 2013
		Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total
	U.S. Government and agency obligations	$	59,178	$	117		$	(635	)		$	58,660			12.5	%
	Municipal bonds:
	Taxable	23,842		100			(278		)		23,664				5
	Tax exempt	29,229		170			(208		)		29,191				6.2
	Total municipal bonds	53,071		270			(486		)		52,855				11.2
	Corporate bonds	7,001		2			(39		)		6,964				1.5
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	47,077		648			(838		)		46,887				10
	One- to four-family residential other	988		63			—				1,051				0.2
	Multifamily agency guaranteed	271,428		402			(3,392		)		268,438				57.1
	Multifamily other	10,604		—			(370		)		10,234				2.2
	Total mortgage-backed or related securities	330,097		1,113			(4,600		)		326,610				69.5
	Asset-backed securities:
	SLMA	15,553		128			—				15,681				3.3
	Other asset-backed securities	10,060		—			(550		)		9,510				2
	Total asset-backed securities	25,613		128			(550		)		25,191				5.3
		$	474,960	$	1,630		$	(6,310	)		$	470,280			100	%
Schedule of Available-for-sale Securities with Continuous Loss Position	'
	At September 30, 2014 and December 31, 2013, an aging of unrealized losses and fair value of related securities—available-for-sale was as follows (in thousands):
		September 30, 2014
		Less Than 12 Months					12 Months or More								Total
		Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
	U.S. Government and agency obligations	$	16,102	$	(50	)	$	20,301			$	(237	)		$	36,403		$	(287	)
	Municipal bonds:
	Taxable	4,585		(6		)	3,691				(38		)		8,276			(44		)
	Tax exempt	2,140		(3		)	3,661				(50		)		5,801			(53		)
	Total municipal bonds	6,725		(9		)	7,352				(88		)		14,077			(97		)
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	7,459		(61		)	11,836				(376		)		19,295			(437		)
	Multifamily agency guaranteed	92,070		(426		)	104,790				(1,609		)		196,860			(2,035		)
	Multifamily other	8,417		(64		)	—				—				8,417			(64		)
	Total mortgage-backed or related securities	107,946		(551		)	116,626				(1,985		)		224,572			(2,536		)
	Asset-backed securities:
	Other asset-backed securities	—		—			9,671				(382		)		9,671			(382		)
		$	130,773	$	(610	)	$	153,950			$	(2,692	)		$	284,723		$	(3,302	)
		December 31, 2013
		Less Than 12 Months					12 Months or More								Total
		Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
	U.S. Government and agency obligations	$	39,621	$	(633	)	$	998			$	(2	)		$	40,619		$	(635	)
	Municipal bonds:
	Taxable	15,580		(261		)	413				(17		)		15,993			(278		)
	Tax exempt	8,217		(205		)	487				(3		)		8,704			(208		)
	Total municipal bonds	23,797		(466		)	900				(20		)		24,697			(486		)
	Corporate bonds	4,961		(39		)	—				—				4,961			(39		)
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	14,972		(133		)	22,560				(705		)		37,532			(838		)
	Multifamily agency guaranteed	199,407		(3,162		)	10,096				(230		)		209,503			(3,392		)
	Multifamily other	10,234		(370		)	—				—				10,234			(370		)
	Total mortgage-backed or related securities	224,613		(3,665		)	32,656				(935		)		257,269			(4,600		)
	Asset-backed securities:
	Other asset-backed securities	—		—			9,510				(550		)		9,510			(550		)
		$	292,992	$	(4,803	)	$	44,064			$	(1,507	)		$	337,056		$	(6,310	)
Schedule of Held-to-maturity Securities	'
	Securities—Held-to-Maturity:  The amortized cost and estimated fair value of securities—held-to-maturity at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014
		Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total Amortized Cost
	U.S. Government and agency obligations	$	2,156	$	—		$	(25	)		$	2,131			1.6	%
	Municipal bonds:
	Taxable	15,400		286			(4		)		15,682				11.6
	Tax exempt	106,213		5,591			(167		)		111,637				79.8
	Total municipal bonds	121,613		5,877			(171		)		127,319				91.4
	Corporate bonds	1,800		—			—				1,800				1.4
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	1,686		—			(12		)		1,674				1.2
	Multifamily agency guaranteed	5,814		18			(2		)		5,830				4.4
	Total mortgage-backed or related securities	7,500		18			(14		)		7,504				5.6
		$	133,069	$	5,895		$	(210	)		$	138,754			100	%
		December 31, 2013
		Amortized Cost		Gross Unrealized Gains			Gross Unrealized Losses				Fair Value				Percent of Total Amortized Cost
	U.S. Government and agency obligations	$	1,186	$	—		$	(80	)		$	1,106			1.2	%
	Municipal bonds:
	Taxable	10,552		193			(204		)		10,541				10.3
	Tax exempt	85,374		2,545			(1,299		)		86,620				83.3
	Total municipal bonds	95,926		2,738			(1,503		)		97,161				93.6
	Corporate bonds	2,050		—			—				2,050				2
	Mortgage-backed or related securities:
	Multifamily agency guaranteed	3,351		—			(58		)		3,293				3.2
		$	102,513	$	2,738		$	(1,641	)		$	103,610			100	%
Schedule of Held-to-maturity Securities with Continuous Loss Position	'
	At September 30, 2014 and December 31, 2013, an age analysis of unrealized losses and fair value of related securities—held-to-maturity was as follows (in thousands):
		September 30, 2014
		Less Than 12 Months					12 Months or More								Total
		Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
	U.S. Government and agency obligations	$	—	$	—		$	1,131			$	(25	)		$	1,131		$	(25	)
	Municipal bonds:
	Taxable	1,147		(4		)	—				—				1,147			(4		)
	Tax exempt	5,091		(39		)	7,418				(128		)		12,509			(167		)
	Total municipal bonds	6,238		(43		)	7,418				(128		)		13,656			(171		)
	Mortgage-backed or related securities:
	One- to four-family residential agency guaranteed	1,674		(12		)	—				—				1,674			(12		)
	Multifamily agency guaranteed	2,230		(2		)	—				—				2,230			(2		)
	Total mortgage-backed or related securities	3,904		(14		)	—				—				3,904			(14		)
		$	10,142	$	(57	)	$	8,549			$	(153	)		$	18,691		$	(210	)
		December 31, 2013
		Less Than 12 Months					12 Months or More								Total
		Fair Value		Unrealized Losses			Fair Value				Unrealized Losses				Fair Value			Unrealized Losses
	U.S. Government and agency obligations	$	1,106	$	(80	)	$	—			$	—			$	1,106		$	(80	)
	Municipal bonds:
	Taxable	3,344		(110		)	2,964				(94		)		6,308			(204		)
	Tax exempt	31,234		(1,282		)	303				(17		)		31,537			(1,299		)
	Total municipal bonds	34,578		(1,392		)	3,267				(111		)		37,845			(1,503		)
	Mortgage-backed or related securities:
	Multifamily agency guaranteed	3,293		(58		)	—				—				3,293			(58		)
		$	38,977	$	(1,530	)	$	3,267			$	(111	)		$	42,244		$	(1,641	)
Schedule of Pledged Securities	'
	The following table presents, as of September 30, 2014, investment securities and interest-bearing deposits which were pledged to secure borrowings, public deposits or other obligations as permitted or required by law (in thousands):
		Carrying Value		Amortized Cost			Fair Value
	Purpose or beneficiary:
	State and local governments public deposits	$	137,864	$	137,738		$	143,306
	Interest rate swap counterparties	9,751		9,405			9,751
	Retail repurchase agreements	100,350		100,115			100,350
	Other	248		248			248
	Total pledged securities and interest-bearing deposits	$	248,213	$	247,506		$	253,655
Trading Securities [Member]	'
Marketable Securities [Line Items]	'
Schedule of Securities by Contractual Maturity Date	'
	The amortized cost and estimated fair value of securities—trading at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
		September 30, 2014					December 31, 2013
		Amortized Cost		Fair Value			Amortized Cost				Fair Value
	Maturing in one year or less	$	260	$	262		$	260			$	263
	Maturing after one year through five years	7,917		8,467			7,056				7,298
	Maturing after five years through ten years	7,159		7,805			12,602				13,572
	Maturing after ten years through twenty years	21,181		20,024			33,335				27,472
	Maturing after twenty years	21,859		14,456			21,883				13,799
		58,376		51,014			75,136				62,404
	Equity securities	14		62			14				68
		$	58,390	$	51,076		$	75,150			$	62,472
Available-for-sale Securities [Member]	'
Marketable Securities [Line Items]	'
Schedule of Securities by Contractual Maturity Date	'
	The amortized cost and estimated fair value of securities—available-for-sale at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
		September 30, 2014					December 31, 2013
		Amortized Cost		Fair Value			Amortized Cost				Fair Value
	Maturing in one year or less	$	3,951	$	3,955		$	25,136			$	25,256
	Maturing after one year through five years	312,365		310,514			322,493				319,489
	Maturing after five years through ten years	48,536		48,587			58,468				57,782
	Maturing after ten years through twenty years	12,100		12,107			15,535				15,135
	Maturing after twenty years	58,320		58,582			53,328				52,618
		$	435,272	$	433,745		$	474,960			$	470,280
Held-to-maturity Securities [Member]	'
Marketable Securities [Line Items]	'
Schedule of Securities by Contractual Maturity Date	'
	The amortized cost and estimated fair value of securities—held-to-maturity at September 30, 2014 and December 31, 2013, by contractual maturity, are shown below (in thousands).  Expected maturities will differ from contractual maturities because some securities may be called or prepaid with or without call or prepayment penalties.
		September 30, 2014					December 31, 2013
		Amortized Cost		Fair Value			Amortized Cost				Fair Value
	Maturing in one year or less	$	940	$	947		$	1,270			$	1,281
	Maturing after one year through five years	15,400		15,679			10,834				11,206
	Maturing after five years through ten years	26,090		26,440			17,948				17,908
	Maturing after ten years through twenty years	75,613		80,421			59,643				60,791
	Maturing after twenty years	15,026		15,267			12,818				12,424
		$	133,069	$	138,754		$	102,513			$	103,610

LOANS_RECEIVABLE_AND_THE_ALLOW1

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Schedule of Loans Receivable, Including Loans Held for Sale	'
	Loans receivable, including loans held for sale, at September 30, 2014 and December 31, 2013 are summarized as follows (dollars in thousands):
		September 30, 2014							December 31, 2013
		Amount				Percent of Total			Amount				Percent of Total
	Commercial real estate:
	Owner-occupied	$	546,333			14.4	%		$	502,601			14.7	%
	Investment properties	854,284				22.4			692,457				20.3
	Multifamily real estate	183,944				4.8			137,153				4
	Commercial construction	18,606				0.5			12,168				0.4
	Multifamily construction	48,606				1.3			52,081				1.5
	One- to four-family construction	214,141				5.6			200,864				5.8
	Land and land development:
	Residential	89,649				2.4			75,695				2.2
	Commercial	10,505				0.3			10,450				0.3
	Commercial business	728,088				19.1			682,169				20
	Agricultural business, including secured by farmland	240,048				6.3			228,291				6.7
	One- to four-family residential	527,271				13.8			529,494				15.5
	Consumer:
	Consumer secured by one- to four-family	215,385				5.7			173,188				5.1
	Consumer-other	129,835				3.4			121,834				3.5
	Total loans outstanding	3,806,695				100	%		3,418,445				100	%
	Less allowance for loan losses	(74,331		)					(74,258		)
	Net loans	$	3,732,364						$	3,344,187
	Loan amounts are net of unearned loan fees in excess of unamortized costs of $8.0 million as of September 30, 2014 and $8.3 million as of December 31, 2013.
Schedule of Loans Receivable by Geographic Location	'
	The Company’s total loans by geographic concentration at September 30, 2014 were as follows (dollars in thousands):
		Washington				Oregon				Idaho				Other				Total
	Commercial real estate:
	Owner-occupied	$	389,967			$	85,032			$	53,891			$	17,443			$	546,333
	Investment properties	532,415				123,874				59,963				138,032				854,284
	Multifamily real estate	141,337				27,685				14,847				75				183,944
	Commercial construction	16,953				—				1,653				—				18,606
	Multifamily construction	41,462				7,144				—				—				48,606
	One- to four-family construction	128,882				82,656				2,603				—				214,141
	Land and land development:
	Residential	50,257				38,327				1,065				—				89,649
	Commercial	5,055				2,569				2,881				—				10,505
	Commercial business	392,334				121,078				80,262				134,414				728,088
	Agricultural business, including secured by farmland	123,910				63,146				52,992				—				240,048
	One- to four-family residential	329,751				173,384				23,371				765				527,271
	Consumer:
	Consumer secured by one- to four-family	130,312				69,121				15,313				639				215,385
	Consumer—other	83,379				39,818				6,241				397				129,835
	Total loans	$	2,366,014			$	833,834			$	315,082			$	291,765			$	3,806,695
	Percent of total loans	62.1		%		21.9		%		8.3		%		7.7		%		100		%
Schedule of Land and Land Development Loans Receivable by State	'
	The geographic concentrations of the Company’s land and land development loans by state at September 30, 2014 were as follows (dollars in thousands):
		Washington				Oregon				Idaho				Total
	Residential:
	Acquisition and development	$	21,759			$	17,976			$	922			$	40,657
	Improved land and lots	25,062				19,122				143				44,327
	Unimproved land	3,436				1,229				—				4,665
	Commercial:
	Improved land and lots	2,863				489				1,784				5,136
	Unimproved land	2,192				2,080				1,097				5,369
	Total land and land development loans	$	55,312			$	40,896			$	3,946			$	100,154
	Percent of land and land development loans	55.3		%		40.8		%		3.9		%		100		%
Schedule of Adjustable and Fixed Rate Loans by Contractual Maturity Date	'
	The Company originates both adjustable- and fixed-rate loans.  The maturity and repricing composition of those loans, less undisbursed amounts and deferred fees and origination costs, at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014				December 31, 2013
	Fixed-rate (term to maturity):
	Maturing in one year or less	$	106,939			$	122,313
	Maturing after one year through three years	165,930				143,322
	Maturing after three years through five years	196,794				187,279
	Maturing after five years through ten years	235,143				209,869
	Maturing after ten years	551,436				439,004
	Total fixed-rate loans	1,256,242				1,101,787
	Adjustable-rate (term to rate adjustment):
	Maturing or repricing in one year or less	1,502,536				1,390,579
	Maturing or repricing after one year through three years	408,079				279,791
	Maturing or repricing after three years through five years	553,810				541,529
	Maturing or repricing after five years through ten years	84,758				99,503
	Maturing or repricing after ten years	1,270				5,256
	Total adjustable-rate loans	2,550,453				2,316,658
	Total loans	$	3,806,695			$	3,418,445
Schedule of Impaired Loans and Related Allocated Reserve for Loan Losses	'
	The amount of impaired loans and the related allocated reserve for loan losses as of September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014								December 31, 2013
		Loan Amount				Allocated Reserves				Loan Amount				Allocated Reserves
	Impaired loans:
	Nonaccrual loans
	Commercial real estate:
	Owner-occupied	$	2,396			$	33			$	2,466			$	31
	Investment properties	305				57				3,821				89
	Multifamily real estate	397				55				—				—
	One- to four-family construction	—				—				269				—
	Land and land development:
	Residential	1,285				173				924				6
	Commercial business	1,037				60				724				104
	Agricultural business, including secured by farmland	229				15				—				—
	One- to four-family residential	8,615				83				12,532				250
	Consumer:
	Consumer secured by one- to four-family	724				34				903				13
	Consumer—other	414				1				269				1
	Total nonaccrual loans	15,402				511				21,908				494
	Loans 90 days or more past due and still accruing
	Commercial real estate:
	Owner-occupied	993				1				—				—
	Commercial business	301				6				—				—
	Agricultural business, including secured by farmland	—				—				105				8
	One- to four-family residential	2,777				12				2,611				16
	Consumer:
	Consumer secured by one- to four-family	—				—				13				—
	Consumer—other	306				—				131				1
	Total loans past due and still accruing	4,377				19				2,860				25
	Troubled debt restructuring on accrual status:
	Commercial real estate:
	Owner-occupied	184				4				186				4
	Investment properties	6,062				751				5,367				415
	Multifamily real estate	791				91				5,744				1,139
	One- to four-family construction	3,721				620				6,864				1,002
	Land and land development:
	Residential	1,637				476				4,061				754
	Commercial business	880				103				1,299				222
	One- to four-family residential	16,677				1,074				23,302				1,355
	Consumer:
	Consumer secured by one- to four-family	233				30				360				33
	Consumer—other	202				6				245				34
	Total troubled debt restructurings on accrual status	30,387				3,155				47,428				4,958
	Total impaired loans	$	50,166			$	3,685			$	72,196			$	5,477
	As of September 30, 2014 and December 31, 2013, the Company had commitments to advance funds related to TDRs up to additional amounts of $788,000 and $225,000, respectively.
Schedule of Impaired Loans With and Without Specific Reserves	'
	The following tables provide additional information on impaired loans with and without specific allowance reserves at or for the nine months ended September 30, 2014 and at or for the year ended December 31, 2013 (in thousands):
		At or For the Nine Months Ended September 30, 2014
		Recorded Investment				Unpaid Principal Balance				Related Allowance				Average Recorded Investment				Interest Income Recognized
	Without a specific allowance reserve (1)
	Commercial real estate:
	Owner-occupied	$	1,565			$	1,614			$	34			$	1,579			$	38
	Investment properties	305				850				57				325				—
	Multifamily real estate	397				397				55				423				—
	Commercial business	1,338				1,705				66				1,307				14
	Agricultural business/farmland	229				229				15				102				—
	One- to four-family residential	9,179				9,809				26				9,439				89
	Consumer:
	Consumer secured by one- to four-family	628				641				12				642				—
	Consumer—other	602				607				1				607				12
		14,243				15,852				266				14,424				153
	With a specific allowance reserve (2)
	Commercial real estate:
	Owner-occupied	2,008				2,008				4				1,555				8
	Investment properties	6,062				6,467				751				6,124				238
	Multifamily real estate	791				791				91				797				34
	One- to-four family construction	3,721				3,721				620				3,501				120
	Land and land development:
	Residential	2,922				4,078				649				2,937				67
	Commercial business	880				880				103				918				38
	One- to four-family residential	18,890				19,652				1,143				19,457				659
	Consumer:
	Consumer secured by one- to four-family	329				329				52				383				13
	Consumer—other	320				336				6				331				15
		35,923				38,262				3,419				36,003				1,192
	Total
	Commercial real estate:
	Owner-occupied	3,573				3,622				38				3,134				46
	Investment properties	6,367				7,317				808				6,449				238
	Multifamily real estate	1,188				1,188				146				1,220				34
	One- to four-family construction	3,721				3,721				620				3,501				120
	Land and land development:
	Residential	2,922				4,078				649				2,937				67
	Commercial business	2,218				2,585				169				2,225				52
	Agricultural business/farmland	229				229				15				102				—
	One- to four-family residential	28,069				29,461				1,169				28,896				748
	Consumer:
	Consumer secured by one- to four-family	957				970				64				1,025				13
	Consumer—other	922				943				7				938				27
		$	50,166			$	54,114			$	3,685			$	50,427			$	1,345
		At or For the Year Ended December 31, 2013
		Recorded Investment				Unpaid Principal Balance				Related Allowance				Average Recorded Investment				Interest Income Recognized
	Without a specific allowance reserve (1)
	Commercial real estate:
	Owner-occupied	$	534			$	584			$	31			$	569			$	—
	Investment properties	429				974				89				624				—
	Commercial business	724				1,040				104				896				—
	Agricultural business/farmland	105				105				8				110				8
	One- to four-family residential	8,611				9,229				42				8,889				31
	Consumer:
	Consumer secured by one- to four-family	870				1,013				13				900				1
	Consumer—other	276				285				2				287				8
		11,549				13,230				289				12,275				48
	With a specific allowance reserve (2)
	Commercial real estate:
	Owner-occupied	2,118				2,118				4				2,192				12
	Investment properties	8,759				10,395				415				8,353				241
	Multifamily real estate	5,744				5,744				1,139				5,705				298
	One- to-four family construction	7,133				7,213				1,002				5,870				239
Land and land development:
Residential	4,985				6,140				760				6,053				221
Commercial business	1,298				1,298				222				1,340				59
One- to four-family residential	29,834				31,440				1,579				31,668				1,032
Consumer:
Consumer secured by one- to four-family	406				407				33				503				24
Consumer—other	370				386				34				390				21
	60,647				65,141				5,188				62,074				2,147
Total
Commercial real estate
Owner-occupied	2,652				2,702				35				2,761				12
Investment properties	9,188				11,369				504				8,977				241
Multifamily real estate	5,744				5,744				1,139				5,705				298
One- to four-family construction	7,133				7,213				1,002				5,870				239
Land and land development
Residential	4,985				6,140				760				6,053				221
Commercial business	2,022				2,338				326				2,236				59
Agricultural business/farmland	105				105				8				110				8
One- to four-family residential	38,445				40,669				1,621				40,557				1,063
Consumer
Consumer secured by one- to four-family	1,276				1,420				46				1,403				25
Consumer—other	646				671				36				677				29
	$	72,196			$	78,371			$	5,477			$	74,349			$	2,195
(1)	Loans without a specific allowance reserve have not been individually evaluated for impairment, but have been included in pools of homogeneous loans for evaluation of related allowance reserves.
(2)	Loans with a specific allowance reserve have been individually evaluated for impairment using either a discounted cash flow analysis or, for collateral dependent loans, current appraisals less costs to sell to establish realizable value.  These analyses may identify a specific impairment amount needed or may conclude that no reserve is needed.  Any specific impairment that is identified is included in the category’s Related Allowance column.
Schedule of Troubled Debt Restructurings	'
	The following tables present TDRs at September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
		Accrual				Nonaccrual				Total
		Status				Status				TDRs
	Commercial real estate:
	Owner-occupied	$	184			$	110			$	294
	Investment properties	6,062				38				6,100
	Multifamily real estate	791				—				791
	One- to four-family construction	3,721				—				3,721
	Land and land development:
	Residential	1,637				535				2,172
	Commercial business	880				103				983
	One- to four-family residential	16,677				950				17,627
	Consumer:
	Consumer secured by one- to four-family	233				119				352
	Consumer—other	202				117				319
		$	30,387			$	1,972			$	32,359
		December 31, 2013
		Accrual				Nonaccrual				Total
		Status				Status				TDRs
	Commercial real estate:
	Owner-occupied	$	186			$	613			$	799
	Investment properties	5,367				1,630				6,997
	Multifamily real estate	5,744				—				5,744
	One- to four-family construction	6,864				269				7,133
	Land and land development:
	Residential	4,061				174				4,235
	Commercial business	1,299				164				1,463
	One- to four-family residential	23,302				2,474				25,776
	Consumer:
	Consumer secured by one- to four-family	360				252				612
	Consumer—other	245				123				368
		$	47,428			$	5,699			$	53,127
Schedule of Newly Restructured Loans	'
	The following tables present new TDRs that occurred during the three and nine months ended September 30, 2014 and 2013 (dollars in thousands):
		Three Months Ended September 30, 2014											Nine Months Ended September 30, 2014
		Number of			Pre-modification Outstanding				Post-modification Outstanding				Number of			Pre-				Post-
		Contracts			Recorded Investment				Recorded Investment				Contracts			modification Outstanding				modification Outstanding
																Recorded				Recorded
																Investment				Investment
	Recorded Investment (1) (2)
	Commercial real estate
	Owner occupied	—			$	—			$	—			1			$	94			$	94
	One- to four-family construction	1			388				388				5			1,369				1,369
	Commercial business	—			—				—				1			100				100
	One- to four-family residential	2			434				434				2			434				434
	Consumer-other	—			—				—				1			9				9
		3			$	822			$	822			10			$	2,006			$	2,006
		Three Months Ended September 30, 2013											Nine Months Ended September 30, 2013
		Number of			Pre-modification Outstanding				Post-modification Outstanding				Number of			Pre-				Post-
		Contracts			Recorded Investment				Recorded Investment				Contracts			modification Outstanding				modification Outstanding
																Recorded				Recorded
																Investment				Investment
	Recorded Investment (1) (2)
	Multifamily real estate	—			$	—			$	—			1			$	376			$	376
	One- to four-family construction	3			773				773				11			3,008				3,008
	Land and land development—residential	2			1,029				1,029				2			1,029				1,029
	One- to four-family residential	—			—				—				10			2,923				2,923
		5			$	1,802			$	1,802			24			$	7,336			$	7,336
	(1)	Since most loans were already considered classified and/or on nonaccrual status prior to restructuring, the modifications did not have a material effect on the Company’s determination of the allowance for loan losses.
	(2)	The majority of these modifications do not fit into one separate type, such as rate, term, amount, interest-only or payment, but instead are a combination of multiple types of modifications; therefore, they are disclosed in aggregate.
Schedule of Troubled Debt Restructurings Which Incurred A Payment Default	'
	The following table presents TDRs which incurred a payment default within twelve months of the restructure date during the three and nine month periods ended September 30, 2014 and 2013 (in thousands).  A default on a TDR results in either a transfer to nonaccrual status or a partial charge-off:
		Three Months Ended								Nine Months Ended
		30-Sep								30-Sep
		2014				2013				2014				2013
	Commercial business	$	—			$	137			$	—			$	137
	Total	$	—			$	137			$	—			$	137
Schedule of the Company's Portfolio of Risk-Rated Loans and Non-Risk Rated Loans by Grade and Other Characteristics	'
	The following table shows the Company’s portfolio of risk-rated loans and non-risk-rated loans by grade or other characteristics as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Total Loans
		Real Estate				Real Estate
	Risk-rated loans:
	Pass (Risk Ratings 1-5) (1)	$	1,366,811			$	182,727			$	364,770			$	684,572			$	234,787			$	514,857		$	342,524		$	3,691,048
	Special mention	5,147				—				—				34,137				1,183				64			144			40,675
	Substandard	28,394				1,217				16,737				9,372				4,078				12,350			2,541			74,689
	Doubtful	265				—				—				7				—				—			11			283
	Loss	—				—				—				—				—				—			—			—
	Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	3,806,695
	Performing loans	$	1,396,923			$	183,547			$	380,222			$	726,750			$	239,819			$	515,879		$	343,776		$	3,786,916
	Non-performing loans (2)	3,694				397				1,285				1,338				229				11,392			1,444			19,779
	Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	3,806,695
		December 31, 2013
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Total Loans
		Real Estate				Real Estate
	Risk-rated loans:
	Pass (Risk Ratings 1-5) (1)	$	1,160,921			$	131,523			$	332,150			$	655,007			$	225,329			$	511,967		$	291,992		$	3,308,889
	Special mention	6,614				—				350				10,484				561				—			106			18,115
	Substandard	26,979				5,630				18,758				16,669				2,401				17,527			2,924			90,888
	Doubtful	544				—				—				9				—				—			—			553
	Loss	—				—				—				—				—				—			—			—
	Total loans	$	1,195,058			$	137,153			$	351,258			$	682,169			$	228,291			$	529,494		$	295,022		$	3,418,445
	Performing loans	$	1,188,771			$	137,153			$	350,065			$	681,445			$	228,187			$	514,351		$	293,705		$	3,393,677
	Non-performing loans (2)	6,287				—				1,193				724				104				15,143			1,317			24,768
	Total loans	$	1,195,058			$	137,153			$	351,258			$	682,169			$	228,291			$	529,494		$	295,022		$	3,418,445
	(1)	The Pass category includes some performing loans that are part of homogenous pools which are not individually risk-rated.  This includes all consumer loans, all one- to four-family residential loans and, as of September 30, 2014 and December 31, 2013, in the commercial business category, $109 million and $94 million, respectively, of credit-scored small business loans.  As loans in these pools become non-performing, they are individually risk-rated.
	(2)	Non-performing loans include non-accrual loans and loans past due greater than 90 days and on accrual status.
Schedule of Age Analysis of the Company's Past Due Loans	'
	The following tables provide additional detail on the age analysis of the Company’s past due loans as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
		30-59 Days				60-89 Days				90 Days or More				Total				Current				Total Loans			Loans 90 Days or More Past Due and Accruing
		Past Due				Past Due				Past Due				Past Due
	Commercial real estate:
	Owner-occupied	$	187			$	1,620			$	1,258			$	3,065			$	543,268			$	546,333		$	993
	Investment properties	—				—				267				267				854,017				854,284			—
	Multifamily real estate	—				—				—				—				183,944				183,944			—
	Commercial construction	—				—				—				—				18,606				18,606			—
	Multifamily construction	—				—				—				—				48,606				48,606			—
	One-to-four-family construction	—				—				—				—				214,141				214,141			—
	Land and land development:
	Residential	—				—				750				750				88,899				89,649			—
	Commercial	—				—				—				—				10,505				10,505			—
	Commercial business	188				145				899				1,232				726,856				728,088			301
	Agricultural business, including secured by farmland	14				552				229				795				239,253				240,048			—
	One- to four-family residential	240				3,401				7,274				10,915				516,356				527,271			2,777
	Consumer:
	Consumer secured by one- to four-family	368				572				176				1,116				214,269				215,385			—
	Consumer—other	346				67				521				934				128,901				129,835			306
	Total	$	1,343			$	6,357			$	11,374			$	19,074			$	3,787,621			$	3,806,695		$	4,377
		31-Dec-13
		30-59 Days				60-89 Days				90 Days or More				Total				Current				Total Loans			Loans 90 Days or More Past Due and Accruing
		Past Due				Past Due				Past Due				Past Due
	Commercial real estate:
	Owner-occupied	$	883			$	550			$	813			$	2,246			$	500,355			$	502,601		$	—
	Investment properties	—				—				—				—				692,457				692,457			—
	Multifamily real estate	1,845				785				—				2,630				134,523				137,153			—
	Commercial construction	—				—				—				—				12,168				12,168			—
	Multifamily construction	—				—				—				—				52,081				52,081			—
	One-to-four-family construction	9				7				4				20				200,844				200,864			—
	Land and land development:
	Residential	—				—				251				251				75,444				75,695			—
	Commercial	—				—				—				—				10,450				10,450			—
	Commercial business	2,001				2				299				2,302				679,867				682,169			—
	Agricultural business, including secured by farmland	—				—				—				—				228,291				228,291			105
	One-to four-family residential	521				2,550				9,142				12,213				517,281				529,494			2,611
	Consumer:
	Consumer secured by one- to four-family	723				93				918				1,734				171,454				173,188			13
	Consumer—other	384				99				131				614				121,220				121,834			131
	Total	$	6,366			$	4,086			$	11,558			$	22,010			$	3,396,435			$	3,418,445		$	2,860
Allowance for Credit Losses on Financing Receivables	'
	The following tables provide additional information on the allowance for loan losses and loan balances individually and collectively evaluated for impairment at or for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		For the Three Months Ended September 30, 2014
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate
	Allowance for loan losses:
	Beginning balance	$	18,884			$	5,765			$	17,837			$	12,014			$	2,824			$	9,270		$	748		$	6,968		$	74,310
	Provision for loan losses	527				(853		)		2,858				490				(339		)		(38		)	603			(3,248		)	—
	Recoveries	94				—				84				256				587				143			53			—			1,217
	Charge-offs	—				(20		)		—				(83		)		(125		)		(239		)	(729		)	—			(1,196		)
	Ending balance	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
		For the Nine Months Ended September 30, 2014
		Commercial				Multifamily				Construction and Land				Commercial				Agricultural				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate								Business				business
	Allowance for loan losses:
	Beginning balance	$	16,759			$	5,306			$	17,640			$	11,773			$	2,841			$	11,486		$	1,335		$	7,118		$	74,258
	Provision for loan losses	3,321				(394		)		2,558				1,150				(1,017		)		(2,253		)	33			(3,398		)	—
	Recoveries	664				—				788				835				1,248				535			393			—			4,463
	Charge-offs	(1,239		)		(20		)		(207		)		(1,081		)		(125		)		(632		)	(1,086		)	—			(4,390		)
	Ending balance	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
		September 30, 2014
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate
	Allowance individually evaluated for impairment	$	755			$	91			$	1,269			$	103			$	—			$	1,143		$	58		$	—		$	3,419
	Allowance collectively evaluated for impairment	18,750				4,801				19,510				12,574				2,947				7,993			617			3,720			70,912
	Total allowance for loan losses	$	19,505			$	4,892			$	20,779			$	12,677			$	2,947			$	9,136		$	675		$	3,720		$	74,331
	Loan balances:
	Loans individually evaluated for impairment	$	8,070			$	791			$	6,643			$	880			$	—			$	18,890		$	649		$	—		$	35,923
	Loans collectively evaluated for impairment	1,392,547				183,153				374,864				727,208				240,048				508,381			344,571			—			3,770,772
	Total loans	$	1,400,617			$	183,944			$	381,507			$	728,088			$	240,048			$	527,271		$	345,220		$	—		$	3,806,695
		For the Three Months Ended September 30, 2013
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate
	Allowance for loan losses:
	Beginning balance	$	14,898			$	4,973			$	16,625			$	10,806			$	3,805			$	14,974		$	1,011		$	9,029		$	76,121
	Provision for loan losses	1,239				310				(464		)		(223		)		(411		)		(1,599		)	43			1,105			—
	Recoveries	331				—				507				339				265				19			68			—			1,529
	Charge-offs	(850		)		—				—				(246		)		(248		)		(207		)	(174		)	—			(1,725		)
	Ending balance	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
		For the Nine Months Ended September 30, 2013
		Commercial				Multifamily				Construction and Land				Commercial				Agricultural				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate								Business				business
	Allowance for loan losses:
	Beginning balance	$	15,322			$	4,506			$	14,991			$	9,957			$	2,295			$	16,475		$	1,348		$	11,865		$	76,759
	Provision for loan losses	(383		)		777				1,586				901				752				(2,166		)	264			(1,731		)	—
	Recoveries	2,295				—				945				1,391				612				138			287			—			5,668
	Charge-offs	(1,616		)		—				(854		)		(1,573		)		(248		)		(1,260		)	(951		)	—			(6,502		)
	Ending balance	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
		September 30, 2013
		Commercial				Multifamily				Construction and Land				Commercial Business				Agricultural Business				One- to Four-Family Residential			Consumer			Unallocated			Total
		Real Estate				Real Estate
	Allowance individually evaluated for impairment	$	459			$	1,256			$	2,182			$	202			$	—			$	1,639		$	85		$	—		$	5,823
	Allowance collectively evaluated for impairment	15,159				4,027				14,486				10,474				3,411				11,548			863			10,134			70,102
	Total allowance for loan losses	$	15,618			$	5,283			$	16,668			$	10,676			$	3,411			$	13,187		$	948		$	10,134		$	75,925
	Loan balances:
	Loans individually evaluated for impairment	$	9,137			$	5,810			$	13,613			$	1,115			$	—			$	28,711		$	1,139		$	—		$	59,525
	Loans collectively evaluated for  impairment	1,112,961				127,960				319,999				634,543				223,187				514,552			282,709			—			3,215,911
	Total loans	$	1,122,098			$	133,770			$	333,612			$	635,658			$	223,187			$	543,263		$	283,848		$	—		$	3,275,436

REAL_ESTATE_OWNED_NET_Tables

REAL ESTATE OWNED, NET (Tables)	9 Months Ended
	Sep. 30, 2014
Real Estate [Abstract]	'
Schedule of Changes in Real Estate Owned, Net of Valuation Adjustments	'
	The following table presents the changes in REO for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended						Nine Months Ended
		30-Sep						30-Sep
		2014			2013			2014			2013
	Balance, beginning of the period	$	4,388		$	6,714		$	4,044		$	15,778
	Additions from loan foreclosures	135			963			2,837			2,467
	Additions from capitalized costs	—			297			35			344
	Proceeds from dispositions of REO	(860		)	(3,970		)	(3,631		)	(15,758		)
	Gain on sale of REO	265			1,005			680			2,477
	Valuation adjustments in the period	—			(191		)	(37		)	(490		)
	Balance, end of the period	$	3,928		$	4,818		$	3,928		$	4,818
Schedule of Real Estate Owned by Type and Geographic Location by State	'
	The following table shows REO by type and geographic location by state as of September 30, 2014 (in thousands):
		Washington			Oregon			Idaho			Total
	Land development—residential	$	259		$	1,637		$	32		$	1,928
	One- to four-family real estate	1,257			743			—			2,000
	Balance, end of period	$	1,516		$	2,380		$	32		$	3,928

INTANGIBLE_ASSETS_AND_MORTGAGE1

INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Tables)	9 Months Ended
	Sep. 30, 2014
Other Intangible Assets and Mortgage Servicing Rights [Abstract]	'
Schedule of Changes in Intangible Assets	'
	The following table summarizes the changes in the Company’s core deposit intangibles for the nine months ended September 30, 2014 and the year ended December 31, 2013 (in thousands):
		CDI
	Balance, December 31, 2012	$	4,230
	Additions through acquisitions	160
	Amortization	(1,941		)
	Balance, December 31, 2013	2,449
	Additions through acquisitions	2,372
	Amortization	(1,459		)
	Balance, September 30, 2014	$	3,362
Schedule of Estimated Annual Amortization Expense	'
	The following table presents the estimated amortization expense with respect to intangibles for the periods indicated (in thousands):
			CDI
	Remainder of 2014		$	531
	2015		1,007
	2016		353
	2017		321
	2018		296
	Thereafter		854
			$	3,362
Schedule of Servicing Assets at Amortized Value	'
	An analysis of our mortgage servicing rights, net of valuation allowances, for the three and nine months ended September 30, 2014 and 2013 is presented below (in thousands):
		Three Months Ended						Nine Months Ended
		30-Sep						30-Sep
		2014			2013			2014			2013
	Balance, beginning of the period	$	8,481		$	7,036		$	8,086		$	6,244
	Amounts capitalized	846			769			2,215			2,352
	Amortization (1)	(543		)	(520		)	(1,517		)	(1,911		)
	Valuation adjustments in the period	—			400			—			1,000
	Balance, end of the period (2)	$	8,784		$	7,685		$	8,784		$	7,685
	(1)	Amortization of mortgage servicing rights is recorded as a reduction of loan servicing income and any unamortized balance is fully written off if the loan repays in full.
	(2)	There was no valuation allowance as of September 30, 2014 and a $300,000 valuation allowance as of September 30, 2013.

DEPOSITS_AND_CUSTOMER_REPURCHA1

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Tables)	9 Months Ended
	Sep. 30, 2014
Banking and Thrift [Abstract]	'
Schedule of Deposit Liabilities	'
	Deposits consisted of the following at September 30, 2014 and December 31, 2013 (dollars in thousands):
		September 30, 2014						December 31, 2013
		Amount			Percent of Total			Amount				Percent of Total
	Non-interest-bearing accounts	$	1,304,720		32.7	%		$	1,115,346			30.8	%
	Interest-bearing checking	429,876			10.8			422,910				11.7
	Regular savings accounts	899,868			22.5			798,764				22.1
	Money market accounts	503,660			12.6			408,211				11.3
	Total transaction and saving accounts	3,138,124			78.6			2,745,231				75.9
	Certificates of deposit	852,994			21.4			872,695				24.1
	Total deposits	$	3,991,118		100	%		$	3,617,926			100	%
	Included in total deposits:
	Public fund transaction accounts	$	99,519		2.5	%		$	87,521			2.4	%
	Public fund interest-bearing certificates	48,508			1.2			51,465				1.4
	Total public deposits	$	148,027		3.7	%		$	138,986			3.8	%
	Total brokered deposits	$	41,249		1	%		$	4,291			0.1	%
Schedule of Certificate Accounts by Total Balance	'
	Certificate of deposit accounts by total balance at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014			December 31, 2013
	Certificates of deposit less than $100,000	$	405,788		$	386,745
	Certificates of deposit $100,000 through $250,000	285,239			308,130
	Certificates of deposit more than $250,000	161,967			177,820
	Total certificates of deposit	$	852,994		$	872,695
Schedule of Maturities Certificate Accounts	'
	Scheduled maturities and repricing of certificate accounts at September 30, 2014 and December 31, 2013 were as follows (in thousands):
		September 30, 2014			December 31, 2013
	Certificates which mature or reprice:
	Within one year or less	$	641,098		$	660,394
	After one year through two years	121,166			117,789
	After two years through three years	47,563			47,362
	After three years through four years	20,309			26,443
	After four years through five years	17,673			17,075
	After five years	5,185			3,632
	Total certificates of deposit	$	852,994		$	872,695
Schedule of Deposit Liabilities by Geographic Concentration	'
	The following table presents the geographic concentration of deposits at September 30, 2014 (dollars in thousands):
		Washington			Oregon				Idaho				Total
	Total deposits	$	2,889,675		$	864,869			$	236,574			$	3,991,118
	Percent of total deposits	72.4		%	21.7		%		5.9		%		100		%
Schedule of Repurchase Agreements	'
	The following table presents retail repurchase agreement balances as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014			December 31, 2013
	Retail repurchase agreements	$	67,605		$	83,056

FAIR_VALUE_ACCOUNTING_AND_MEAS1

FAIR VALUE ACCOUNTING AND MEASUREMENT (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	'
	The following tables present financial assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy of the fair value measurements for those assets as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
		Level 1				Level 2			Level 3			Total
	Assets:
	Securities—available-for-sale
	U.S. Government and agency	$	—			$	43,293		$	—		$	43,293
	Municipal bonds	—				49,679			—			49,679
	Corporate bonds	—				5,049			—			5,049
	Mortgage-backed or related securities	—				310,403			—			310,403
	Asset-backed securities	—				25,321			—			25,321
		—				433,745			—			433,745
	Securities—trading
	U.S. Government and agency	—				1,494			—			1,494
	Municipal bonds	—				1,707			—			1,707
	TPS and TRUP CDOs	—				—			29,013			29,013
	Mortgage-backed or related securities	—				18,800			—			18,800
	Equity securities and other	—				62			—			62
		—				22,063			29,013			51,076
	Derivatives
	Interest rate lock commitments	—				226			—			226
	Interest rate swaps	—				4,944			—			4,944
		$	—			$	460,978		$	29,013		$	489,991
	Liabilities:
	Advances from FHLB at fair value	$	—			$	250		$	—		$	250
	Junior subordinated debentures net of unamortized deferred issuance costs at fair value	—				—			77,624			77,624
	Derivatives
	Interest rate sales forward commitments, net	—				33			—			33
	Interest rate swaps	—				4,944			—			4,944
		$	—			$	5,227		$	77,624		$	82,851
		December 31, 2013
		Level 1				Level 2			Level 3			Total
	Assets:
	Securities—available-for-sale
	U.S. Government and agency	$	—			$	58,660		$	—		$	58,660
	Municipal bonds	—				52,855			—			52,855
	Corporate bonds	—				6,964			—			6,964
	Mortgage-backed or related securities	—				326,610			—			326,610
	Asset-backed securities	—				25,191			—			25,191
		—				470,280			—			470,280
	Securities—trading
	U.S. Government and agency	—				1,481			—			1,481
	Municipal bonds	—				5,023			—			5,023
	TPS and TRUP CDOs	—				—			35,140			35,140
	Mortgage-backed or related securities	—				20,760			—			20,760
	Equity securities and other	—				68			—			68
		—				27,332			35,140			62,472
	Derivatives
	Interest rate lock commitments	—				130			—			130
	Interest rate swaps	—				4,946			—			4,946
		$	—			$	502,688		$	35,140		$	537,828
	Liabilities:
	Advances from FHLB at fair value	$	—			$	27,250		$	—		$	27,250
	Junior subordinated debentures net of unamortized deferred issuance costs at fair value	—				—			73,928			73,928
	Derivatives
	Interest rate sales forward commitments, net	—				43			—			43
	Interest rate swaps	—				4,946			—			4,946
		$	—			$	32,239		$	73,928		$	106,167
Schedule of Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	'
	The following table provides a reconciliation of the assets and liabilities measured at fair value using significant unobservable inputs (Level 3) on a recurring basis during the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2014
		Level 3 Fair Value Inputs							Level 3 Fair Value Inputs
		TPS and TRUP CDOs				Borrowings—Junior Subordinated Debentures			TPS and TRUP			Borrowings—
									CDOs			Junior
												Subordinated
												Debentures
	Beginning balance	$	38,529			$	77,313		$	35,140		$	73,928
	Total gains or losses recognized
	Assets gains, including OTTI	1,969				—			5,389			—
	Liabilities losses	—				311			—			3,696
	Maturities and paydowns net of discount amortization	(11,485		)		—			(11,516		)	—
	Ending balance at September 30, 2014	$	29,013			$	77,624		$	29,013		$	77,624
		Three Months Ended							Nine Months Ended
		September 30, 2013							September 30, 2013
		Level 3 Fair Value Inputs							Level 3 Fair Value Inputs
		TPS and TRUP CDOs				Borrowings—Junior Subordinated Debentures			TPS and TRUP			Borrowings—
									CDOs			Junior
												Subordinated
												Debentures
	Beginning balance	$	35,105			$	73,471		$	35,741		$	73,063
	Total gains or losses recognized
	Assets gains (losses), including OTTI	(10		)		—			(646		)	—
	Liabilities losses	—				166			—			574
	Ending balance at September 30, 2013	$	35,095			$	73,637		$	35,095		$	73,637
Schedule of Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis	'
	The following tables present financial assets measured at fair value on a non-recurring basis and the level within the fair value hierarchy of the fair value measurements for those assets as of September 30, 2014 and December 31, 2013 (in thousands):
		At or For the Nine Months Ended September 30, 2014
		Level 1				Level 2			Level 3			Total		Net Gains/(Losses) Recognized During the Period
	Impaired loans	$	—			$	—		$	5,298		$	5,298	$	(2,828	)
	REO	—				—			3,928			3,928		(458		)
		At or For the Year Ended December 31, 2013
		Level 1				Level 2			Level 3			Total		Net Gains/(Losses) Recognized During the Period
	Impaired loans	$	—			$	—		$	10,627		$	10,627	$	(4,890	)
	REO	—				—			4,044			4,044		(853		)
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	'
	The following table provides a description of the valuation technique, unobservable inputs, and qualitative information about the unobservable inputs for the Company's assets and liabilities classified as Level 3 and measured at fair value on a recurring and nonrecurring basis at September 30, 2014 and December 31, 2013:
							Weighted Average Rate
	Financial Instruments		Valuation Techniques		Unobservable Inputs		September 30, 2014		31-Dec-13
	TPS securities		Discounted cash flows		Discount rate		5.24	%	5.5	%
	TRUP CDOs		Discounted cash flows		Discount rate		3.99		3.85
	Junior subordinated debentures		Discounted cash flows		Discount rate		5.24		5.5
	Impaired loans		Discounted cash flows		Discount rate		Various		Various
			Collateral Valuations		Market values		n/a		n/a
	REO		Appraisals		Market values		n/a		n/a
Schedule of Fair Value of Financial Instruments, by Balance Sheet Grouping	'
	The carrying value and estimated fair value of financial instruments are as follows (in thousands):
		September 30, 2014							December 31, 2013
		Carrying Value				Estimated			Carrying Value			Estimated
						Fair Value						Fair Value
	Assets:
	Cash and due from banks	$	151,725			$	151,725		$	137,349		$	137,349
	Securities—trading	51,076				51,076			62,472			62,472
	Securities—available-for-sale	433,745				433,745			470,280			470,280
	Securities—held-to-maturity	133,069				138,754			102,513			103,610
	Loans receivable held for sale	6,949				7,044			2,734			2,751
	Loans receivable	3,799,746				3,676,346			3,415,711			3,297,936
	FHLB stock	29,106				29,106			35,390			35,390
	Bank-owned life insurance	63,293				63,293			61,945			61,945
	Mortgage servicing rights	8,784				12,585			8,086			11,529
	Derivatives	5,170				5,170			5,076			5,076
	Liabilities:
	Demand, interest checking and money market accounts	2,238,256				2,001,116			1,946,467			1,697,095
	Regular savings	899,868				794,624			798,764			695,863
	Certificates of deposit	852,994				846,973			872,695			867,904
	FHLB advances at fair value	250				250			27,250			27,250
	Junior subordinated debentures at fair value	77,624				77,624			73,928			73,928
	Other borrowings	67,605				67,605			83,056			83,056
	Derivatives	4,977				4,977			4,989			4,989

CALCULATION_OF_WEIGHTED_AVERAG1

CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS (LOSS) PER SHARE (EPS) (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Basic and Diluted Weighted Shares Outstanding	'
	The following table reconciles basic to diluted weighted shares outstanding used to calculate earnings per share data dollars and shares (in thousands, except per share data):
		Three Months Ended				Nine Months Ended
		30-Sep				30-Sep
		2014		2013		2014		2013
	Net income	$	14,843	$	11,665	$	42,421	$	35,001
	Basic weighted average shares outstanding	19,373		19,338		19,353		19,348
	Plus unvested restricted stock	47		59		33		55
	Diluted weighted shares outstanding	19,420		19,397		19,386		19,403
	Earnings per common share
	Basic	$	0.77	$	0.6	$	2.19	$	1.81
	Diluted	$	0.76	$	0.6	$	2.19	$	1.8

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Tables)	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Financial Instruments With Off-Balance-Sheet Risks	'
	Outstanding commitments for which no asset or liability for the notional amount has been recorded consisted of the following at the dates indicated (in thousands):
		Contract or Notional Amount
		September 30, 2014		December 31, 2013
	Commitments to extend credit	$	1,197,737	$	1,073,897
	Standby letters of credit and financial guarantees	10,004		6,990
	Commitments to originate loans	27,272		15,776
	Derivatives also included in Note 16:
	Commitments to originate loans held for sale	31,071		21,434
	Commitments to sell loans secured by one- to four-family residential properties	13,697		9,378
	Commitments to sell securities related to mortgage banking activities	22,468		15,200

DERIVATIVES_AND_HEDGING_Tables

DERIVATIVES AND HEDGING (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivatives Designated in Hedge Relationships	'
	As of September 30, 2014 and December 31, 2013, the notional values or contractual amounts and fair values of the Company's derivatives designated in hedge relationships were as follows (in thousands):
		Asset Derivatives																Liability Derivatives
		September 30, 2014								December 31, 2013								September 30, 2014					December 31, 2013
		Notional/				Fair				Notional/				Fair				Notional/			Fair		Notional/		Fair
		Contract Amount				Value (1)				Contract Amount				Value (1)				Contract Amount			Value (2)		Contract Amount		Value (2)
	Interest rate swaps	$	7,175			$	1,161			$	7,420			$	1,295			$	7,175		$	1,161	$	7,420	$	1,295
	(1)	Included in Loans receivable on the Consolidated Statements of Financial Condition.
	(2)	Included in Other liabilities on the Consolidated Statements of Financial Condition.
Schedule of Derivatives Not Designated in Hedge Relationships	'
	As of September 30, 2014 and December 31, 2013, the notional values or contractual amounts and fair values of the Company's derivatives not designated in hedge relationships were as follows (in thousands):
		Asset Derivatives																Liability Derivatives
		September 30, 2014								December 31, 2013								September 30, 2014					December 31, 2013
		Notional/				Fair				Notional/				Fair				Notional/			Fair		Notional/		Fair
		Contract Amount				Value (1)				Contract Amount				Value (1)				Contract Amount			Value (2)		Contract Amount		Value (2)
	Interest rate swaps	$	136,434			$	3,782			$	135,122			$	3,651			$	136,434		$	3,782	$	135,122	$	3,651
	Mortgage loan commitments	20,477				205				14,107				57				10,593			21		7,326		43
	Forward sales contracts	10,593				21				22,526				73				22,468			12		—		—
		$	167,504			$	4,008			$	171,755			$	3,781			$	169,495		$	3,815	$	142,448	$	3,694
	(1)	Included in Other assets on the Consolidated Statements of Financial Condition, with the exception of those interest rate swaps from prior to 2009 that were not designated in hedge relationships (with a fair value of $603,000 at September 30, 2014 and $791,000 at December 31, 2013), which are included in Loans receivable.
	(2)	Included in Other liabilities on the Consolidated Statements of Financial Condition.
	Gains (losses) recognized in income on non-designated hedging instruments for the three and nine months ended September 30, 2014 and 2013 were as follows (in thousands):
				Three Months Ended								Nine Months Ended
				30-Sep								30-Sep
		Location on Income Statement		2014				2013				2014				2013
	Mortgage loan commitments	Mortgage banking operations		$	(243	)		$	651			$	148			$	(165	)
	Forward sales contracts	Mortgage banking operations		224				(952		)		(42		)		(130		)
				$	(19	)		$	(301	)		$	106			$	(295	)
Offsetting Assets and Liabilities	'
	The following table illustrates the potential effect of the Company's derivative master netting arrangements, by type of financial instrument, on the Company's Statements of Financial Condition as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014
														Gross Amounts of Financial Instruments Not Offset in the Statement of Financial Condition
		Gross Amounts Recognized				Amounts offset				Net Amounts				Netting Adjustment Per Applicable Master Netting Agreements				Fair Value			Net Amount
						in the Statement				in the Statement								of Financial Collateral
						of Financial Condition				of Financial Condition								in the Statement
																		of Financial Condition
	Derivative assets
	Interest rate swaps	$	4,944			$	—			$	4,944			$	(212	)		$	—		$	4,732
		$	4,944			$	—			$	4,944			$	(212	)		$	—		$	4,732
	Derivative liabilities
	Interest rate swaps	$	4,944			$	—			$	4,944			$	(212	)		$	(4,520	)	$	212
		$	4,944			$	—			$	4,944			$	(212	)		$	(4,520	)	$	212
		December 31, 2013
														Gross Amounts of Financial Instruments Not Offset in the Statement of Financial Condition
		Gross Amounts Recognized				Amounts offset				Net Amounts				Netting Adjustment Per Applicable Master Netting Agreements				Fair Value			Net Amount
						in the Statement				in the Statement								of Financial Collateral
						of Financial Condition				of Financial Condition								in the Statement
																		of Financial Condition
	Derivative assets
	Interest rate swaps	$	4,946			$	—			$	4,946			$	(554	)		$	—		$	4,392
		$	4,946			$	—			$	4,946			$	(554	)		$	—		$	4,392
	Derivative liabilities
	Interest rate swaps	$	4,946			$	—			$	4,946			$	(554	)		$	(2,657	)	$	1,735
		$	4,946			$	—			$	4,946			$	(554	)		$	(2,657	)	$	1,735

RECENT_DEVELOPMENTS_AND_SIGNIF1

RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS (Textual) (Details) (USD $)	9 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Nov. 05, 2014	Nov. 05, 2014
	Siuslaw Financial Group, Inc [Member]	Proposed Business Acquisition [Member]	Proposed Business Acquisition [Member]
		AmericanWest Bank [Member]	Scenario, Forecast [Member]
			AmericanWest Bank [Member]
Business Acquisition [Line Items]	'	'	'
Business Acquisition, Date of Acquisition Agreement	7-Aug-14	5-Nov-14	'
Business Acquisition, Number of Shares Banner Common Stock Transferred to Acquiree	'	'	13.23
Business Acquisition, Gross Cash Transferred to Acquiree	'	'	$130
Business Acquisition, Ownership Percentage in Banner Represented by Shares Transferred to Acquiree	'	'	38.80%
Business Combination, Aggregate Value of Transaction	'	'	$702

BUSINESS_COMBINATIONS_BUSINESS2

BUSINESS COMBINATIONS BUSINESS COMBINATIONS (Textual) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Jun. 20, 2014
					Six Oregon Branches [Member]	Six Oregon Branches [Member]
					location
Business Acquisition [Line Items]	'	'	'	'	'	'
Business Acquisition, Effective Date of Acquisition	'	'	'	'	20-Jun-14	'
Business Combination, Number of Branches	'	'	'	'	6	'
Acquisition bargain purchase gain	$0	$0	$9,079,000	$0	'	'
Bargain purchase discount	'	'	'	'	'	7,000,000
Net fair value adjustments on acquired assets and liabilities	'	'	'	'	'	$300,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	'	'	'	'	'8 years	'

BUSINESS_COMBINATIONS_BUSINESS3

BUSINESS COMBINATIONS BUSINESS COMBINATIONS (Schedule of Components of Acquisition) (Details) (Six Oregon Branches [Member], USD $)	Jun. 20, 2014
Six Oregon Branches [Member]	'
ASSETS	'
Cash	$127,557,000
Loans receivable, net (contractual amount of $88.3 million)	87,923,000
Property and equipment, net	3,079,000
Core deposit intangible	2,372,000
Other assets	275,000
Total assets	221,206,000
LIABILITIES	'
Deposits	212,085,000
Other liabilities	42,000
Total liabilities	212,127,000
Net assets acquired (Acquisition bargain purchase gain)	9,079,000
Business Combination, Acquired Receivables, Gross Contractual Amount	$88,300,000

BUSINESS_COMBINATIONS_BUSINESS4

BUSINESS COMBINATIONS BUSINESS COMBINATIONS (Schedule of Acquisition-Related Costs) (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended	6 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014
					Six Oregon Branches [Member]	Six Oregon Branches [Member]	Six Oregon Branches [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Non-capitalized equipment	'	'	'	'	$70	'	$99
Client communications	'	'	'	'	-108	'	130
Information/computer data services	'	'	'	'	-335	'	297
Payment and processing expenses	'	'	'	'	-205	'	66
Professional services	'	'	'	'	56	'	674
Miscellaneous	'	'	'	'	28	'	264
Acquisition Related Costs	($494)	$0	$1,530	$0	($494)	$2,000	$1,530

INTERESTBEARING_DEPOSITS_AND_S2

INTEREST-BEARING DEPOSITS AND SECURITIES (Schedule of Investments) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Open Option Contracts Written [Line Items]	'	'
Interest-bearing deposits included in cash and due from banks	$82,702	$67,638
Securities	617,890	635,265
Interest-bearing deposits and securities	700,592	702,903
U.S. Government and agency obligations [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	46,943	61,327
Total municipal bonds [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	172,999	153,804
Taxable municipal bonds [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	35,020	34,216
Tax exempt municipal bonds [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	137,979	119,588
Corporate bonds [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	35,862	44,154
Total mortgage-backed or related securities [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	336,703	350,721
1-4 residential agency guaranteed [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	56,331	58,117
1-4 residential other [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	753	1,051
Multifamily agency guaranteed [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	269,143	281,319
Multifamily other [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	10,476	10,234
Asset-backed Securities [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	25,321	25,191
Student Loan Marketing Association (SLMA) [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	15,650	15,681
Other asset-backed securities [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	9,671	9,510
Equity securities (excludes FHLB stock) [Member]	'	'
Open Option Contracts Written [Line Items]	'	'
Securities	$62	$68

INTERESTBEARING_DEPOSITS_AND_S3

INTEREST-BEARING DEPOSITS AND SECURITIES (Trading Securities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	$58,390	$75,150
Securities—trading, Fair Value	51,076	62,472
Securities—trading, Percent of Total Fair Value	100.00%	100.00%
U.S. Government and agency obligations [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	1,340	1,370
Securities—trading, Fair Value	1,494	1,481
Securities—trading, Percent of Total Fair Value	2.90%	2.40%
Tax exempt municipal bonds [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	1,665	4,969
Securities—trading, Fair Value	1,707	5,023
Securities—trading, Percent of Total Fair Value	3.40%	8.00%
Corporate bonds [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	37,981	49,498
Securities—trading, Fair Value	29,013	35,140
Securities—trading, Percent of Total Fair Value	56.80%	56.20%
Total mortgage-backed or related securities [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	17,390	19,299
Securities—trading, Fair Value	18,800	20,760
Securities—trading, Percent of Total Fair Value	36.80%	33.30%
1-4 residential agency guaranteed [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	8,697	10,483
Securities—trading, Fair Value	9,393	11,230
Securities—trading, Percent of Total Fair Value	18.40%	18.00%
Multifamily agency guaranteed [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	8,693	8,816
Securities—trading, Fair Value	9,407	9,530
Securities—trading, Percent of Total Fair Value	18.40%	15.30%
Equity securities [Member]	'	'
Schedule of Trading Securities [Line Items]	'	'
Securities—trading, Amortized Cost	14	14
Securities—trading, Fair Value	$62	$68
Securities—trading, Percent of Total Fair Value	0.10%	0.10%

INTERESTBEARING_DEPOSITS_AND_S4

INTEREST-BEARING DEPOSITS AND SECURITIES (Trading Securities Debt Maturities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Trading Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]	'	'
Maturing in one year or less, amortized cost	$260	$260
Maturing after one year through five years, amortized cost	7,917	7,056
Maturing after five years through ten years, amortized cost	7,159	12,602
Maturing after ten years through twenty years, amortized cost	21,181	33,335
Maturing after twenty, amortized cost	21,859	21,883
Total with maturity date, amortized cost	58,376	75,136
Without maturity date, amortized cost	14	14
Amortized Cost	58,390	75,150
Trading Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]	'	'
Maturing in one year or less, fair value	262	263
Maturing after one year through five years, fair value	8,467	7,298
Maturing after five years, through ten years, fair value	7,805	13,572
Maturing after ten years through twenty years, fair value	20,024	27,472
Maturing after twenty years, fair value	14,456	13,799
Total with maturity date, fair value	51,014	62,404
Without maturity date, fair value	62	68
Fair Value	$51,076	$62,472

INTERESTBEARING_DEPOSITS_AND_S5

INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$435,272	$474,960
Gross Unrealized Gains	1,775	1,630
Gross Unrealized Losses	-3,302	-6,310
Fair Value	433,745	470,280
Percent of Total	100.00%	100.00%
U.S. Government and agency obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	43,565	59,178
Gross Unrealized Gains	15	117
Gross Unrealized Losses	-287	-635
Fair Value	43,293	58,660
Percent of Total	10.00%	12.50%
Total municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	49,511	53,071
Gross Unrealized Gains	265	270
Gross Unrealized Losses	-97	-486
Fair Value	49,679	52,855
Percent of Total	11.40%	11.20%
Taxable municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	19,567	23,842
Gross Unrealized Gains	97	100
Gross Unrealized Losses	-44	-278
Fair Value	19,620	23,664
Percent of Total	4.50%	5.00%
Tax exempt municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	29,944	29,229
Gross Unrealized Gains	168	170
Gross Unrealized Losses	-53	-208
Fair Value	30,059	29,191
Percent of Total	6.90%	6.20%
Corporate bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	5,000	7,001
Gross Unrealized Gains	49	2
Gross Unrealized Losses	0	-39
Fair Value	5,049	6,964
Percent of Total	1.20%	1.50%
Total mortgage-backed or related securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	311,657	330,097
Gross Unrealized Gains	1,282	1,113
Gross Unrealized Losses	-2,536	-4,600
Fair Value	310,403	326,610
Percent of Total	71.60%	69.50%
1-4 residential agency guaranteed [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	44,897	47,077
Gross Unrealized Gains	792	648
Gross Unrealized Losses	-437	-838
Fair Value	45,252	46,887
Percent of Total	10.40%	10.00%
1-4 residential other [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	712	988
Gross Unrealized Gains	41	63
Gross Unrealized Losses	0	0
Fair Value	753	1,051
Percent of Total	0.20%	0.20%
Multifamily agency guaranteed [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	255,519	271,428
Gross Unrealized Gains	438	402
Gross Unrealized Losses	-2,035	-3,392
Fair Value	253,922	268,438
Percent of Total	58.60%	57.10%
Multifamily other [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	10,529	10,604
Gross Unrealized Gains	11	0
Gross Unrealized Losses	-64	-370
Fair Value	10,476	10,234
Percent of Total	2.40%	2.20%
Asset-backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	25,539	25,613
Gross Unrealized Gains	164	128
Gross Unrealized Losses	-382	-550
Fair Value	25,321	25,191
Percent of Total	5.80%	5.30%
SLMA [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	15,486	15,553
Gross Unrealized Gains	164	128
Gross Unrealized Losses	0	0
Fair Value	15,650	15,681
Percent of Total	3.60%	3.30%
Other asset-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	10,053	10,060
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-382	-550
Fair Value	$9,671	$9,510
Percent of Total	2.20%	2.00%

INTERESTBEARING_DEPOSITS_AND_S6

INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities with Continuous Loss Position) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	$130,773	$292,992
Less than 12 Months, Unrealized Losses	-610	-4,803
12 Months or More, Fair Value	153,950	44,064
12 Months or More, Unrealized Losses	-2,692	-1,507
Total Fair Value	284,723	337,056
Total Unrealized Losses	-3,302	-6,310
U.S. Government and agency obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	16,102	39,621
Less than 12 Months, Unrealized Losses	-50	-633
12 Months or More, Fair Value	20,301	998
12 Months or More, Unrealized Losses	-237	-2
Total Fair Value	36,403	40,619
Total Unrealized Losses	-287	-635
Total municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	6,725	23,797
Less than 12 Months, Unrealized Losses	-9	-466
12 Months or More, Fair Value	7,352	900
12 Months or More, Unrealized Losses	-88	-20
Total Fair Value	14,077	24,697
Total Unrealized Losses	-97	-486
Taxable municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	4,585	15,580
Less than 12 Months, Unrealized Losses	-6	-261
12 Months or More, Fair Value	3,691	413
12 Months or More, Unrealized Losses	-38	-17
Total Fair Value	8,276	15,993
Total Unrealized Losses	-44	-278
Tax exempt municipal bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	2,140	8,217
Less than 12 Months, Unrealized Losses	-3	-205
12 Months or More, Fair Value	3,661	487
12 Months or More, Unrealized Losses	-50	-3
Total Fair Value	5,801	8,704
Total Unrealized Losses	-53	-208
Corporate bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	'	4,961
Less than 12 Months, Unrealized Losses	'	-39
12 Months or More, Fair Value	'	0
12 Months or More, Unrealized Losses	'	0
Total Fair Value	'	4,961
Total Unrealized Losses	'	-39
Total mortgage-backed or related securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	107,946	224,613
Less than 12 Months, Unrealized Losses	-551	-3,665
12 Months or More, Fair Value	116,626	32,656
12 Months or More, Unrealized Losses	-1,985	-935
Total Fair Value	224,572	257,269
Total Unrealized Losses	-2,536	-4,600
1-4 residential agency guaranteed [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	7,459	14,972
Less than 12 Months, Unrealized Losses	-61	-133
12 Months or More, Fair Value	11,836	22,560
12 Months or More, Unrealized Losses	-376	-705
Total Fair Value	19,295	37,532
Total Unrealized Losses	-437	-838
Multifamily agency guaranteed [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	92,070	199,407
Less than 12 Months, Unrealized Losses	-426	-3,162
12 Months or More, Fair Value	104,790	10,096
12 Months or More, Unrealized Losses	-1,609	-230
Total Fair Value	196,860	209,503
Total Unrealized Losses	-2,035	-3,392
Multifamily other [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	8,417	10,234
Less than 12 Months, Unrealized Losses	-64	-370
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total Fair Value	8,417	10,234
Total Unrealized Losses	-64	-370
Other asset-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Unrealized Losses	0	0
12 Months or More, Fair Value	9,671	9,510
12 Months or More, Unrealized Losses	-382	-550
Total Fair Value	9,671	9,510
Total Unrealized Losses	($382)	($550)

INTERESTBEARING_DEPOSITS_AND_S7

INTEREST-BEARING DEPOSITS AND SECURITIES (Available-for-sale Securities Debt Maturities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]	'	'
Maturing in one year or less, amortized cost	$3,951	$25,136
Maturing after one year thorugh five years, amortized cost	312,365	322,493
Maturing after five years through ten years, amortized cost	48,536	58,468
Maturing after ten years through twenty years, amortized cost	12,100	15,535
Maturing after twenty years, amortized cost	58,320	53,328
Amoritzed cost	435,272	474,960
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]	'	'
Maturing one year or less, fair value	3,955	25,256
Maturing after one year through five years, fair value	310,514	319,489
Maturing after five years through ten years, fair value	48,587	57,782
Maturing after ten years through twenty years, fair value	12,107	15,135
Maturing after twenty years, fair value	58,582	52,618
Fair Value	$433,745	$470,280

INTERESTBEARING_DEPOSITS_AND_S8

INTEREST-BEARING DEPOSITS AND SECURITIES (Held-to-maturity Securities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	$133,069	$102,513
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	5,895	2,738
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-210	-1,641
Fair Value	138,754	103,610
Percent of Total Amortized Cost	100.00%	100.00%
U.S. Government and agency obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	2,156	1,186
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	0	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-25	-80
Fair Value	2,131	1,106
Percent of Total Amortized Cost	1.60%	1.20%
Total municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	121,613	95,926
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	5,877	2,738
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-171	-1,503
Fair Value	127,319	97,161
Percent of Total Amortized Cost	91.40%	93.60%
Taxable municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	15,400	10,552
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	286	193
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-4	-204
Fair Value	15,682	10,541
Percent of Total Amortized Cost	11.60%	10.30%
Tax exempt municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	106,213	85,374
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	5,591	2,545
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-167	-1,299
Fair Value	111,637	86,620
Percent of Total Amortized Cost	79.80%	83.30%
Corporate bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	1,800	2,050
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	0	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	0	0
Fair Value	1,800	2,050
Percent of Total Amortized Cost	1.40%	2.00%
Total mortgage-backed or related securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	7,500	'
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	18	'
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-14	'
Fair Value	7,504	'
Percent of Total Amortized Cost	5.60%	'
1-4 residential agency guaranteed [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	1,686	'
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	0	'
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-12	'
Fair Value	1,674	'
Percent of Total Amortized Cost	1.20%	'
Multifamily agency guaranteed [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	5,814	3,351
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	18	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	-2	-58
Fair Value	$5,830	$3,293
Percent of Total Amortized Cost	4.40%	3.20%

INTERESTBEARING_DEPOSITS_AND_S9

INTEREST-BEARING DEPOSITS AND SECURITIES (Held-to-Maturity Securities with Continuous Loss Position) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	$10,142	$38,977
Less Than 12 Months, Unrealized Losses	-57	-1,530
12 Months or More, Fair Value	8,549	3,267
12 Months or More, Unrealized Losses	-153	-111
Total Fair Value	18,691	42,244
Total Unrealized Losses	-210	-1,641
U.S. Government and agency obligations [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	1,106
Less Than 12 Months, Unrealized Losses	0	-80
12 Months or More, Fair Value	1,131	0
12 Months or More, Unrealized Losses	-25	0
Total Fair Value	1,131	1,106
Total Unrealized Losses	-25	-80
Total municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	6,238	34,578
Less Than 12 Months, Unrealized Losses	-43	-1,392
12 Months or More, Fair Value	7,418	3,267
12 Months or More, Unrealized Losses	-128	-111
Total Fair Value	13,656	37,845
Total Unrealized Losses	-171	-1,503
Taxable municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	1,147	3,344
Less Than 12 Months, Unrealized Losses	-4	-110
12 Months or More, Fair Value	0	2,964
12 Months or More, Unrealized Losses	0	-94
Total Fair Value	1,147	6,308
Total Unrealized Losses	-4	-204
Tax exempt municipal bonds [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	5,091	31,234
Less Than 12 Months, Unrealized Losses	-39	-1,282
12 Months or More, Fair Value	7,418	303
12 Months or More, Unrealized Losses	-128	-17
Total Fair Value	12,509	31,537
Total Unrealized Losses	-167	-1,299
Total mortgage-backed or related securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	3,904	'
Less Than 12 Months, Unrealized Losses	-14	'
12 Months or More, Fair Value	0	'
12 Months or More, Unrealized Losses	0	'
Total Fair Value	3,904	'
Total Unrealized Losses	-14	'
1-4 residential agency guaranteed [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	1,674	'
Less Than 12 Months, Unrealized Losses	-12	'
12 Months or More, Fair Value	0	'
12 Months or More, Unrealized Losses	0	'
Total Fair Value	1,674	'
Total Unrealized Losses	-12	'
Multifamily agency guaranteed [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 Months, Fair Value	2,230	3,293
Less Than 12 Months, Unrealized Losses	-2	-58
12 Months or More, Fair Value	0	0
12 Months or More, Unrealized Losses	0	0
Total Fair Value	2,230	3,293
Total Unrealized Losses	($2)	($58)

Recovered_Sheet1

INTEREST-BEARING DEPOSITS AND SECURITIES (Held-to-maturity Securities Debt Maturities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]	'	'
Maturing in one year or less, amortized cost	$940	$1,270
Maturing after one year through five years, amortized cost	15,400	10,834
Maturing after five years through ten years, amortized cost	26,090	17,948
Maturing after ten years through twenty years, amortized cost	75,613	59,643
Maturing after twenty years, amortized cost	15,026	12,818
Amortized cost	133,069	102,513
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]	'	'
Maturing in one year or less, fair value	947	1,281
Maturing after one year through five years, fair value	15,679	11,206
Maturing after five years through ten years, fair value	26,440	17,908
Maturing after ten years through twenty years, fair value	80,421	60,791
Maturing after twenty years, fair value	15,267	12,424
Fair Value	$138,754	$103,610

Recovered_Sheet2

INTEREST-BEARING DEPOSITS AND SECURITIES (Securities Pledged) (Details) (USD $)	Sep. 30, 2014
In Thousands, unless otherwise specified
Pledged Financial Instruments, Not Separately Reported, Securities [Abstract]	'
State and local governments public deposits	$137,864
Interest rate swap counterparties	9,751
Retail repurchase agreements	100,350
Other	248
Total pledged securities and interest-bearing deposits	248,213
State and local governments public deposits, amortized cost	137,738
Interest rate swap counterparties, amortized cost	9,405
Retail repurchase agreements, amortized cost	100,115
Other, Amortized Cost	248
Total pledged securities and interest-bearing deposits, amortized cost	247,506
State and local governments public deposits, fair value	143,306
Interest rate swap counterparties, fair value	9,751
Retail repurchase agreements, fair value	100,350
Other, Fair Value	248
Total pledged securities and interest-bearing deposits, fair value	$253,655

Recovered_Sheet3

INTEREST-BEARING DEPOSITS AND SECURITIES (Textual) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	security	security	security
Trading Securities [Abstract]	'	'	'
Trading Securities, Number of Securities Sold	3	40	'
Trading Securities, Sale Proceeds	$2,387,000	$29,351,000	'
Trading Securities, Realized Gain (Loss)	1,000	1,500,000	'
Trading Securities, Realized Gain, Recoveries	'	1,000,000	'
Trading Securities, OTTI (Recovery) Charges	0	-409,000	'
Trading Securities, Number of Securities on Nonaccrual Status	0	0	'
Available-for-sale Securities [Abstract]	'	'	'
Available-for-sale Securities, Number of Securities Sold	12	35	'
Available-for-sale Securities, Sale Proceeds	55,982,000	103,274,000	'
Available-for-sale Securities, Gross Realized Gain (Loss)	40,000	-116,000	'
Available-for-sale Securities, Number of Securities in Unrealized Loss Position	90	'	114
Available-for-sale Securities, OTTI Charges	0	0	'
Available-for-sale Securities, Number of Securities in Nonaccrual Status	0	0	'
Held-to-maturity Securities [Abstract]	'	'	'
Held-to-maturity Securities, Number of Securities Sold	0	0	'
Held-to-maturity Securities, Number of Securities in Unrealized Loss Position	27	'	36
Held-to-maturity Securities, OTTI Charges	$0	$0	'
Held-to-maturity Securities, Number of Securities in Nonaccrual Status	0	0	'

FHLB_STOCK_Details

FHLB STOCK (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Banking and Thrift [Abstract]	'	'	'	'	'
Federal Home Loan Bank Stock, Par Value Per Share	$100	'	$100	'	'
Federal Home Loan Bank (FHLB) stock	$29,106,000	'	$29,106,000	'	$35,390,000
Dividend Income on FHLB Stock	8,000	9,000	26,000	9,000	'
Proceeds from Sale of Federal Reserve Stock	2,100,000	'	'	'	'
Impairment Recognized on FHLB Stock	'	'	$0	'	'

LOANS_RECEIVABLE_AND_THE_ALLOW2

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Loans by Type) (Details) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	$3,806,695,000	'	$3,418,445,000	$3,275,436,000	'	'
Less allowance for loan losses	-74,331,000	-74,310,000	-74,258,000	-75,925,000	-76,121,000	-76,759,000
Total loans, net	3,732,364,000	'	3,344,187,000	'	'	'
Percent of total loans	100.00%	'	100.00%	'	'	'
Unearned loan (fees) in excess of unamortized costs	8,000,000	'	8,300,000	'	'	'
Commerical real estate - owner-occupied [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	546,333,000	'	502,601,000	'	'	'
Percent of total loans	14.40%	'	14.70%	'	'	'
Commerical real estate - investment properties [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	854,284,000	'	692,457,000	'	'	'
Percent of total loans	22.40%	'	20.30%	'	'	'
Multifamily real estate [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	183,944,000	'	137,153,000	133,770,000	'	'
Less allowance for loan losses	-4,892,000	-5,765,000	-5,306,000	-5,283,000	-4,973,000	-4,506,000
Percent of total loans	4.80%	'	4.00%	'	'	'
Commercial construction [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	18,606,000	'	12,168,000	'	'	'
Percent of total loans	0.50%	'	0.40%	'	'	'
Multifamily construction [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	48,606,000	'	52,081,000	'	'	'
Percent of total loans	1.30%	'	1.50%	'	'	'
One-to four-family construction [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	214,141,000	'	200,864,000	'	'	'
Percent of total loans	5.60%	'	5.80%	'	'	'
Land and land development - residential [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	89,649,000	'	75,695,000	'	'	'
Percent of total loans	2.40%	'	2.20%	'	'	'
Land and land development - commercial [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	10,505,000	'	10,450,000	'	'	'
Percent of total loans	0.30%	'	0.30%	'	'	'
Commercial business [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	728,088,000	'	682,169,000	635,658,000	'	'
Less allowance for loan losses	-12,677,000	-12,014,000	-11,773,000	-10,676,000	-10,806,000	-9,957,000
Percent of total loans	19.10%	'	20.00%	'	'	'
Agricultural business, including secured by farmland [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	240,048,000	'	228,291,000	223,187,000	'	'
Less allowance for loan losses	-2,947,000	-2,824,000	-2,841,000	-3,411,000	-3,805,000	-2,295,000
Percent of total loans	6.30%	'	6.70%	'	'	'
One- to four-family residential [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	527,271,000	'	529,494,000	543,263,000	'	'
Less allowance for loan losses	-9,136,000	-9,270,000	-11,486,000	-13,187,000	-14,974,000	-16,475,000
Percent of total loans	13.80%	'	15.50%	'	'	'
Consumer secured by one- to four-family [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	215,385,000	'	173,188,000	'	'	'
Percent of total loans	5.70%	'	5.10%	'	'	'
Consumer - other [Member]	'	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'
Total loans outstanding	$129,835,000	'	$121,834,000	'	'	'
Percent of total loans	3.40%	'	3.50%	'	'	'

LOANS_RECEIVABLE_AND_THE_ALLOW3

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Loans by Geographic Type) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	$3,806,695	$3,418,445	$3,275,436
Percent of total loans	100.00%	100.00%	'
Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,366,014	'	'
Percent of total loans	62.10%	'	'
Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	833,834	'	'
Percent of total loans	21.90%	'	'
Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	315,082	'	'
Percent of total loans	8.30%	'	'
Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	291,765	'	'
Percent of total loans	7.70%	'	'
Commerical real estate - owner-occupied [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	546,333	502,601	'
Percent of total loans	14.40%	14.70%	'
Commerical real estate - owner-occupied [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	389,967	'	'
Commerical real estate - owner-occupied [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	85,032	'	'
Commerical real estate - owner-occupied [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	53,891	'	'
Commerical real estate - owner-occupied [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	17,443	'	'
Commerical real estate - investment properties [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	854,284	692,457	'
Percent of total loans	22.40%	20.30%	'
Commerical real estate - investment properties [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	532,415	'	'
Commerical real estate - investment properties [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	123,874	'	'
Commerical real estate - investment properties [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	59,963	'	'
Commerical real estate - investment properties [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	138,032	'	'
Multifamily real estate [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	183,944	137,153	133,770
Percent of total loans	4.80%	4.00%	'
Multifamily real estate [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	141,337	'	'
Multifamily real estate [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	27,685	'	'
Multifamily real estate [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	14,847	'	'
Multifamily real estate [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	75	'	'
Commercial construction [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	18,606	12,168	'
Percent of total loans	0.50%	0.40%	'
Commercial construction [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	16,953	'	'
Commercial construction [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Commercial construction [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	1,653	'	'
Commercial construction [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Multifamily construction [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	48,606	52,081	'
Percent of total loans	1.30%	1.50%	'
Multifamily construction [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	41,462	'	'
Multifamily construction [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	7,144	'	'
Multifamily construction [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Multifamily construction [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
One-to four-family construction [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	214,141	200,864	'
Percent of total loans	5.60%	5.80%	'
One-to four-family construction [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	128,882	'	'
One-to four-family construction [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	82,656	'	'
One-to four-family construction [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,603	'	'
One-to four-family construction [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Land and land development - residential [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	89,649	75,695	'
Percent of total loans	2.40%	2.20%	'
Land and land development - residential [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	50,257	'	'
Land and land development - residential [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	38,327	'	'
Land and land development - residential [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	1,065	'	'
Land and land development - residential [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Land and land development - commercial [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	10,505	10,450	'
Percent of total loans	0.30%	0.30%	'
Land and land development - commercial [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	5,055	'	'
Land and land development - commercial [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,569	'	'
Land and land development - commercial [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,881	'	'
Land and land development - commercial [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Commercial business [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	728,088	682,169	635,658
Percent of total loans	19.10%	20.00%	'
Commercial business [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	392,334	'	'
Commercial business [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	121,078	'	'
Commercial business [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	80,262	'	'
Commercial business [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	134,414	'	'
Agricultural business, including secured by farmland [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	240,048	228,291	223,187
Percent of total loans	6.30%	6.70%	'
Agricultural business, including secured by farmland [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	123,910	'	'
Agricultural business, including secured by farmland [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	63,146	'	'
Agricultural business, including secured by farmland [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	52,992	'	'
Agricultural business, including secured by farmland [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
One- to four-family residential [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	527,271	529,494	543,263
Percent of total loans	13.80%	15.50%	'
One- to four-family residential [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	329,751	'	'
One- to four-family residential [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	173,384	'	'
One- to four-family residential [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	23,371	'	'
One- to four-family residential [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	765	'	'
Consumer secured by one- to four-family [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	215,385	173,188	'
Percent of total loans	5.70%	5.10%	'
Consumer secured by one- to four-family [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	130,312	'	'
Consumer secured by one- to four-family [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	69,121	'	'
Consumer secured by one- to four-family [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	15,313	'	'
Consumer secured by one- to four-family [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	639	'	'
Consumer - other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	129,835	121,834	'
Percent of total loans	3.40%	3.50%	'
Consumer - other [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	83,379	'	'
Consumer - other [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	39,818	'	'
Consumer - other [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	6,241	'	'
Consumer - other [Member] | Other [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	$397	'	'

LOANS_RECEIVABLE_AND_THE_ALLOW4

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Land and Land Development by State) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	$3,806,695	$3,418,445	$3,275,436
Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,366,014	'	'
Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	833,834	'	'
Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	315,082	'	'
Land and land development [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	100,154	'	'
Percent of total loans	100.00%	'	'
Land and land development [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	55,312	'	'
Percent of total loans	55.30%	'	'
Land and land development [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	40,896	'	'
Percent of total loans	40.80%	'	'
Land and land development [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	3,946	'	'
Percent of total loans	3.90%	'	'
Land and land development - residential [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	89,649	75,695	'
Land and land development - residential [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	50,257	'	'
Land and land development - residential [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	38,327	'	'
Land and land development - residential [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	1,065	'	'
Land and land development - residential [Member] | Acquisition and Development [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	40,657	'	'
Land and land development - residential [Member] | Acquisition and Development [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	21,759	'	'
Land and land development - residential [Member] | Acquisition and Development [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	17,976	'	'
Land and land development - residential [Member] | Acquisition and Development [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	922	'	'
Land and land development - residential [Member] | Improved Land and Lots [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	44,327	'	'
Land and land development - residential [Member] | Improved Land and Lots [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	25,062	'	'
Land and land development - residential [Member] | Improved Land and Lots [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	19,122	'	'
Land and land development - residential [Member] | Improved Land and Lots [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	143	'	'
Land and land development - residential [Member] | Unimproved Land [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	4,665	'	'
Land and land development - residential [Member] | Unimproved Land [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	3,436	'	'
Land and land development - residential [Member] | Unimproved Land [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	1,229	'	'
Land and land development - residential [Member] | Unimproved Land [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	0	'	'
Land and land development - commercial and industrial [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	10,505	10,450	'
Land and land development - commercial and industrial [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	5,055	'	'
Land and land development - commercial and industrial [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,569	'	'
Land and land development - commercial and industrial [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,881	'	'
Land and land development - commercial and industrial [Member] | Improved Land and Lots [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	5,136	'	'
Land and land development - commercial and industrial [Member] | Improved Land and Lots [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,863	'	'
Land and land development - commercial and industrial [Member] | Improved Land and Lots [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	489	'	'
Land and land development - commercial and industrial [Member] | Improved Land and Lots [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	1,784	'	'
Land and land development - commercial and industrial [Member] | Unimproved Land [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	5,369	'	'
Land and land development - commercial and industrial [Member] | Unimproved Land [Member] | Washington [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,192	'	'
Land and land development - commercial and industrial [Member] | Unimproved Land [Member] | Oregon [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	2,080	'	'
Land and land development - commercial and industrial [Member] | Unimproved Land [Member] | Idaho [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Total loans	$1,097	'	'

LOANS_RECEIVABLE_AND_THE_ALLOW5

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Fixed-rate and Adjustable-Rate Maturity) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Fixed-rate (term to maturity):	'	'	'
Maturing in one year or less	$106,939	$122,313	'
Maturing after one year through three years	165,930	143,322	'
Maturing after three years through five years	196,794	187,279	'
Maturing after five years through ten years	235,143	209,869	'
Maturing after ten years	551,436	439,004	'
Total fixed-rate loans	1,256,242	1,101,787	'
Adjustable-Rate (term to rate adjustment):	'	'	'
Maturing or repricing in one year or less	1,502,536	1,390,579	'
Maturing or repricing after one year through three years	408,079	279,791	'
Maturing or repricing after three years through five years	553,810	541,529	'
Maturing or repricing after five years through ten years	84,758	99,503	'
Maturing or repricing after ten years	1,270	5,256	'
Total adjustable-rate loans	2,550,453	2,316,658	'
Total loans outstanding	$3,806,695	$3,418,445	$3,275,436

LOANS_RECEIVABLE_AND_THE_ALLOW6

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Impaired Loans and Related Allowance Reserve) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	$15,402	$21,908
Past due and still accruing	4,377	2,860
Troubled debt restructuring on accrual status	30,387	47,428
Total impaired loans	50,166	72,196
Nonaccrual loans, allocated reserves	511	494
Past due and still accruing, allocated reserves	19	25
Troubled debt restructuring on accrual status, allocated reserves	3,155	4,958
Allocated Reserve	3,685	5,477
Commitments to advance additional funds related to TDRs	788	225
Commerical real estate - owner-occupied [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	2,396	2,466
Past due and still accruing	993	0
Troubled debt restructuring on accrual status	184	186
Total impaired loans	3,573	2,652
Nonaccrual loans, allocated reserves	33	31
Past due and still accruing, allocated reserves	1	0
Troubled debt restructuring on accrual status, allocated reserves	4	4
Allocated Reserve	38	35
Commerical real estate - investment properties [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	305	3,821
Past due and still accruing	0	0
Troubled debt restructuring on accrual status	6,062	5,367
Total impaired loans	6,367	9,188
Nonaccrual loans, allocated reserves	57	89
Troubled debt restructuring on accrual status, allocated reserves	751	415
Allocated Reserve	808	504
Multifamily real estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	397	0
Past due and still accruing	0	0
Troubled debt restructuring on accrual status	791	5,744
Total impaired loans	1,188	5,744
Nonaccrual loans, allocated reserves	55	0
Troubled debt restructuring on accrual status, allocated reserves	91	1,139
Allocated Reserve	146	1,139
One-to four-family construction [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	0	269
Past due and still accruing	0	0
Troubled debt restructuring on accrual status	3,721	6,864
Total impaired loans	3,721	7,133
Nonaccrual loans, allocated reserves	0	0
Troubled debt restructuring on accrual status, allocated reserves	620	1,002
Allocated Reserve	620	1,002
Land and land development - residential [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	1,285	924
Past due and still accruing	0	0
Troubled debt restructuring on accrual status	1,637	4,061
Total impaired loans	2,922	4,985
Nonaccrual loans, allocated reserves	173	6
Troubled debt restructuring on accrual status, allocated reserves	476	754
Allocated Reserve	649	760
Commercial business [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	1,037	724
Past due and still accruing	301	0
Troubled debt restructuring on accrual status	880	1,299
Total impaired loans	2,218	2,022
Nonaccrual loans, allocated reserves	60	104
Past due and still accruing, allocated reserves	6	0
Troubled debt restructuring on accrual status, allocated reserves	103	222
Allocated Reserve	169	326
Agricultural business, including secured by farmland [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	229	0
Past due and still accruing	0	105
Total impaired loans	229	105
Nonaccrual loans, allocated reserves	15	0
Past due and still accruing, allocated reserves	0	8
Allocated Reserve	15	8
One- to four-family residential [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	8,615	12,532
Past due and still accruing	2,777	2,611
Troubled debt restructuring on accrual status	16,677	23,302
Total impaired loans	28,069	38,445
Nonaccrual loans, allocated reserves	83	250
Past due and still accruing, allocated reserves	12	16
Troubled debt restructuring on accrual status, allocated reserves	1,074	1,355
Allocated Reserve	1,169	1,621
Consumer secured by one- to four-family [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	724	903
Past due and still accruing	0	13
Troubled debt restructuring on accrual status	233	360
Total impaired loans	957	1,276
Nonaccrual loans, allocated reserves	34	13
Past due and still accruing, allocated reserves	0	0
Troubled debt restructuring on accrual status, allocated reserves	30	33
Allocated Reserve	64	46
Consumer - other [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Nonaccrual loans	414	269
Past due and still accruing	306	131
Troubled debt restructuring on accrual status	202	245
Total impaired loans	922	646
Nonaccrual loans, allocated reserves	1	1
Past due and still accruing, allocated reserves	0	1
Troubled debt restructuring on accrual status, allocated reserves	6	34
Allocated Reserve	$7	$36

LOANS_RECEIVABLE_AND_THE_ALLOW7

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Impaired Loans With and Without Specific Reserves) (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	$50,166		$72,196		'
Unpaid Principal Balance	54,114		78,371		'
Allowance collectively evaluated for impairment	70,912		'		70,102
Related Allowance	3,685		5,477		'
Loans collectively evaluated for impairment	3,770,772		'		3,215,911
Average Recorded Investment	50,427		74,349		'
Interest Income Recognized	1,345		2,195		'
Loans individually evaluated for impairment	35,923		'		59,525
Allowance on loans individually evaluated for impairment	3,419		'		5,823
Commerical real estate - owner-occupied [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	3,573		2,652		'
Unpaid Principal Balance	3,622		2,702		'
Related Allowance	38		35		'
Average Recorded Investment	3,134		2,761		'
Interest Income Recognized	46		12		'
Commerical real estate - investment properties [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	6,367		9,188		'
Unpaid Principal Balance	7,317		11,369		'
Related Allowance	808		504		'
Average Recorded Investment	6,449		8,977		'
Interest Income Recognized	238		241		'
Multifamily real estate [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	1,188		5,744		'
Unpaid Principal Balance	1,188		5,744		'
Allowance collectively evaluated for impairment	4,801		'		4,027
Related Allowance	146		1,139		'
Loans collectively evaluated for impairment	183,153		'		127,960
Average Recorded Investment	1,220		5,705		'
Interest Income Recognized	34		298		'
Loans individually evaluated for impairment	791		'		5,810
Allowance on loans individually evaluated for impairment	91		'		1,256
One-to four-family construction [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	3,721		7,133		'
Unpaid Principal Balance	3,721		7,213		'
Related Allowance	620		1,002		'
Average Recorded Investment	3,501		5,870		'
Interest Income Recognized	120		239		'
Land and land development - residential [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	2,922		4,985		'
Unpaid Principal Balance	4,078		6,140		'
Related Allowance	649		760		'
Average Recorded Investment	2,937		6,053		'
Interest Income Recognized	67		221		'
Commercial business [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	2,218		2,022		'
Unpaid Principal Balance	2,585		2,338		'
Allowance collectively evaluated for impairment	12,574		'		10,474
Related Allowance	169		326		'
Loans collectively evaluated for impairment	727,208		'		634,543
Average Recorded Investment	2,225		2,236		'
Interest Income Recognized	52		59		'
Loans individually evaluated for impairment	880		'		1,115
Allowance on loans individually evaluated for impairment	103		'		202
Agricultural business, including secured by farmland [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	229		105		'
Unpaid Principal Balance	229		105		'
Allowance collectively evaluated for impairment	2,947		'		3,411
Related Allowance	15		8		'
Loans collectively evaluated for impairment	240,048		'		223,187
Average Recorded Investment	102		110		'
Interest Income Recognized	0		8		'
Loans individually evaluated for impairment	0		'		0
Allowance on loans individually evaluated for impairment	0		'		0
One- to four-family residential [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	28,069		38,445		'
Unpaid Principal Balance	29,461		40,669		'
Allowance collectively evaluated for impairment	7,993		'		11,548
Related Allowance	1,169		1,621		'
Loans collectively evaluated for impairment	508,381		'		514,552
Average Recorded Investment	28,896		40,557		'
Interest Income Recognized	748		1,063		'
Loans individually evaluated for impairment	18,890		'		28,711
Allowance on loans individually evaluated for impairment	1,143		'		1,639
Consumer secured by one- to four-family [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	957		1,276		'
Unpaid Principal Balance	970		1,420		'
Related Allowance	64		46		'
Average Recorded Investment	1,025		1,403		'
Interest Income Recognized	13		25		'
Consumer - other [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	922		646		'
Unpaid Principal Balance	943		671		'
Related Allowance	7		36		'
Average Recorded Investment	938		677		'
Interest Income Recognized	27		29		'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	'		11,549	[1]	'
Unpaid Principal Balance	15,852	[1]	13,230	[1]	'
Related Allowance	'		289	[1]	'
Average Recorded Investment	14,424	[1]	12,275	[1]	'
Interest Income Recognized	153	[1]	48	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commerical real estate - owner-occupied [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	1,565	[1]	534	[1]	'
Unpaid Principal Balance	1,614	[1]	584	[1]	'
Related Allowance	34	[1]	31	[1]	'
Average Recorded Investment	1,579	[1]	569	[1]	'
Interest Income Recognized	38	[1]	0	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commerical real estate - investment properties [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	305	[1]	429	[1]	'
Unpaid Principal Balance	850	[1]	974	[1]	'
Related Allowance	57	[1]	89	[1]	'
Average Recorded Investment	325	[1]	624	[1]	'
Interest Income Recognized	0	[1]	0	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	397	[1]	'		'
Unpaid Principal Balance	397	[1]	'		'
Related Allowance	55	[1]	'		'
Average Recorded Investment	423	[1]	'		'
Interest Income Recognized	0	[1]	'		'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	1,338	[1]	724	[1]	'
Unpaid Principal Balance	1,705	[1]	1,040	[1]	'
Related Allowance	66	[1]	104	[1]	'
Average Recorded Investment	1,307	[1]	896	[1]	'
Interest Income Recognized	14	[1]	0	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Agricultural business, including secured by farmland [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	229	[1]	105	[1]	'
Unpaid Principal Balance	229	[1]	105	[1]	'
Related Allowance	15	[1]	8	[1]	'
Average Recorded Investment	102	[1]	110	[1]	'
Interest Income Recognized	0	[1]	8	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | One- to four-family residential [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	9,179	[1]	8,611	[1]	'
Unpaid Principal Balance	9,809	[1]	9,229	[1]	'
Related Allowance	26	[1]	42	[1]	'
Average Recorded Investment	9,439	[1]	8,889	[1]	'
Interest Income Recognized	89	[1]	31	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Consumer secured by one- to four-family [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	628	[1]	870	[1]	'
Unpaid Principal Balance	641	[1]	1,013	[1]	'
Related Allowance	12	[1]	13	[1]	'
Average Recorded Investment	642	[1]	900	[1]	'
Interest Income Recognized	0	[1]	1	[1]	'
Loans Without Specific Allowance Reserve, Collectively Evaluated for Impairment [Member] | Consumer - other [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	602	[1]	276	[1]	'
Unpaid Principal Balance	607	[1]	285	[1]	'
Related Allowance	1	[1]	2	[1]	'
Average Recorded Investment	607	[1]	287	[1]	'
Interest Income Recognized	12	[1]	8	[1]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	'		60,647	[2]	'
Unpaid Principal Balance	'		65,141	[2]	'
Related Allowance	'		5,188	[2]	'
Average Recorded Investment	36,003	[2]	62,074	[2]	'
Interest Income Recognized	1,192	[2]	2,147	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commerical real estate - owner-occupied [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	2,008	[2]	2,118	[2]	'
Unpaid Principal Balance	2,008	[2]	2,118	[2]	'
Related Allowance	4	[2]	4	[2]	'
Average Recorded Investment	1,555	[2]	2,192	[2]	'
Interest Income Recognized	8	[2]	12	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commerical real estate - investment properties [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	6,062	[2]	8,759	[2]	'
Unpaid Principal Balance	6,467	[2]	10,395	[2]	'
Related Allowance	751	[2]	415	[2]	'
Average Recorded Investment	6,124	[2]	8,353	[2]	'
Interest Income Recognized	238	[2]	241	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	791	[2]	5,744	[2]	'
Unpaid Principal Balance	791	[2]	5,744	[2]	'
Related Allowance	91	[2]	1,139	[2]	'
Average Recorded Investment	797	[2]	5,705	[2]	'
Interest Income Recognized	34	[2]	298	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | One-to four-family construction [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	3,721	[2]	7,133	[2]	'
Unpaid Principal Balance	3,721	[2]	7,213	[2]	'
Related Allowance	620	[2]	1,002	[2]	'
Average Recorded Investment	3,501	[2]	5,870	[2]	'
Interest Income Recognized	120	[2]	239	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Land and land development - residential [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	2,922	[2]	4,985	[2]	'
Unpaid Principal Balance	4,078	[2]	6,140	[2]	'
Related Allowance	649	[2]	760	[2]	'
Average Recorded Investment	2,937	[2]	6,053	[2]	'
Interest Income Recognized	67	[2]	221	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	880	[2]	1,298	[2]	'
Unpaid Principal Balance	880	[2]	1,298	[2]	'
Related Allowance	103	[2]	222	[2]	'
Average Recorded Investment	918	[2]	1,340	[2]	'
Interest Income Recognized	38	[2]	59	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | One- to four-family residential [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	18,890	[2]	29,834	[2]	'
Unpaid Principal Balance	19,652	[2]	31,440	[2]	'
Related Allowance	1,143	[2]	1,579		'
Average Recorded Investment	19,457	[2]	31,668	[2]	'
Interest Income Recognized	659	[2]	1,032	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Consumer secured by one- to four-family [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	329	[2]	406	[2]	'
Unpaid Principal Balance	329	[2]	407	[2]	'
Related Allowance	52	[2]	33	[2]	'
Average Recorded Investment	383	[2]	503	[2]	'
Interest Income Recognized	13	[2]	24	[2]	'
With Specific Allowance Reserve , Individually Evaluated for Impairment [Member] | Consumer - other [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Recorded Investment	320	[2]	370	[2]	'
Unpaid Principal Balance	336	[2]	386	[2]	'
Related Allowance	6	[2]	34	[2]	'
Average Recorded Investment	331	[2]	390	[2]	'
Interest Income Recognized	15	[2]	21	[2]	'
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]	'		'		'
Financing Receivable, Impaired [Line Items]	'		'		'
Allowance collectively evaluated for impairment	266	[1]	'		'
Impaired loans	50,166		'		'
Loans collectively evaluated for impairment	14,243	[1]	'		'
Loans individually evaluated for impairment	35,923	[2]	'		'
Loans individually evaluated for impairment, original carrying value	38,262	[2]	'		'
Allowance on loans individually evaluated for impairment	$3,419	[2]	'		'
[1]	Loans without a specific allowance reserve have not been individually evaluated for impairment, but have been included in pools of homogeneous loans for evaluation of related allowance reserves.
[2]	Loans with a specific allowance reserve have been individually evaluated for impairment using either a discounted cash flow analysis or, for collateral dependent loans, current appraisals less costs to sell to establish realizable value. These analyses may identify a specific impairment amount needed or may conclude that no reserve is needed. Any specific impairment that is identified is included in the category’s Related Allowance column.

LOANS_RECEIVABLE_AND_THE_ALLOW8

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	$30,387	$47,428
TDRs on Nonaccrual Status	1,972	5,699
Total TDRs	32,359	53,127
Commerical real estate - owner-occupied [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	184	186
TDRs on Nonaccrual Status	110	613
Total TDRs	294	799
Commerical real estate - investment properties [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	6,062	5,367
TDRs on Nonaccrual Status	38	1,630
Total TDRs	6,100	6,997
Multifamily real estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	791	5,744
TDRs on Nonaccrual Status	0	0
Total TDRs	791	5,744
One-to four-family construction [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	3,721	6,864
TDRs on Nonaccrual Status	0	269
Total TDRs	3,721	7,133
Land and land development - residential [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	1,637	4,061
TDRs on Nonaccrual Status	535	174
Total TDRs	2,172	4,235
Commercial business [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	880	1,299
TDRs on Nonaccrual Status	103	164
Total TDRs	983	1,463
One- to four-family residential [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	16,677	23,302
TDRs on Nonaccrual Status	950	2,474
Total TDRs	17,627	25,776
Consumer secured by one- to four-family [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	233	360
TDRs on Nonaccrual Status	119	252
Total TDRs	352	612
Consumer - other [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
TDRs on Accrual Status	202	245
TDRs on Nonaccrual Status	117	123
Total TDRs	$319	$368

LOANS_RECEIVABLE_AND_THE_ALLOW9

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Newly Restructured Loans) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
	contract		contract		contract		contract
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	3	[1],[2]	5	[1],[2]	10	[1],[2]	24	[1],[2]
Pre-Modification Outstanding Recorded Investments	$822	[1],[2]	$1,802	[1],[2]	$2,006	[1],[2]	$7,336	[1],[2]
Post-Modification Outstanding Recorded Investments	822	[1],[2]	1,802	[1],[2]	2,006	[1],[2]	7,336	[1],[2]
Commerical real estate - owner-occupied [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	0	[1],[2]	'		1	[1],[2]	'
Pre-Modification Outstanding Recorded Investments	0	[1],[2]	'		94	[1],[2]	'
Post-Modification Outstanding Recorded Investments	0	[1],[2]	'		94	[1],[2]	'
Multifamily real estate [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	'		0	[1],[2]	'		1	[1],[2]
Pre-Modification Outstanding Recorded Investments	'		0	[1],[2]	'		376	[1],[2]
Post-Modification Outstanding Recorded Investments	'		0	[1],[2]	'		376	[1],[2]
One-to four-family construction [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	1	[1],[2]	3	[1],[2]	5	[1],[2]	11	[1],[2]
Pre-Modification Outstanding Recorded Investments	388	[1],[2]	773	[1],[2]	1,369	[1],[2]	3,008	[1],[2]
Post-Modification Outstanding Recorded Investments	388	[1],[2]	773	[1],[2]	1,369	[1],[2]	3,008	[1],[2]
Land and land development - residential [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	'		2	[1],[2]	'		2	[1],[2]
Pre-Modification Outstanding Recorded Investments	'		1,029	[1],[2]	'		1,029	[1],[2]
Post-Modification Outstanding Recorded Investments	'		1,029	[1],[2]	'		1,029	[1],[2]
Commercial business [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	0	[1],[2]	'		1	[1],[2]	'
Pre-Modification Outstanding Recorded Investments	0	[1],[2]	'		100	[1],[2]	'
Post-Modification Outstanding Recorded Investments	0	[1],[2]	'		100	[1],[2]	'
One- to four-family residential [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	2	[1],[2]	0	[1],[2]	2	[1],[2]	10	[1],[2]
Pre-Modification Outstanding Recorded Investments	434	[1],[2]	0	[1],[2]	434	[1],[2]	2,923	[1],[2]
Post-Modification Outstanding Recorded Investments	434	[1],[2]	0	[1],[2]	434	[1],[2]	2,923	[1],[2]
Consumer - other [Member]	'		'		'		'
Financing Receivable, Modifications [Line Items]	'		'		'		'
Number of Contracts	0	[1],[2]	'		1	[1],[2]	'
Pre-Modification Outstanding Recorded Investments	0	[1],[2]	'		9	[1],[2]	'
Post-Modification Outstanding Recorded Investments	$0	[1],[2]	'		$9	[1],[2]	'
[1]	Since most loans were already considered classified and/or on nonaccrual status prior to restructuring, the modifications did not have a material effect on the Company’s determination of the allowance for loan losses.
[2]	The majority of these modifications do not fit into one separate type, such as rate, term, amount, interest-only or payment, but instead are a combination of multiple types of modifications; therefore, they are disclosed in aggregate.

Recovered_Sheet4

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructuring Which Incurred Payment Default) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
TDRs Which Incurred a Payment Default	$0	$137	$0	$137
Commercial business [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
TDRs Which Incurred a Payment Default	$0	$137	$0	$137

Recovered_Sheet5

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Risk-Rated and Non-Risk Rated Loans by Grade and Other Characteristic) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	$3,806,695		$3,418,445		$3,275,436
Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,400,617		1,195,058		1,122,098
Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	183,944		137,153		133,770
Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	381,507		351,258		333,612
Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	728,088		682,169		635,658
Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	240,048		228,291		223,187
One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	527,271		529,494		543,263
Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	345,220		295,022		283,848
Pass (Risk Ratings 1-5) [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	3,691,048	[1]	3,308,889	[1]	'
Pass (Risk Ratings 1-5) [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,366,811	[1]	1,160,921	[1]	'
Pass (Risk Ratings 1-5) [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	182,727	[1]	131,523	[1]	'
Pass (Risk Ratings 1-5) [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	364,770	[1]	332,150	[1]	'
Pass (Risk Ratings 1-5) [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	684,572	[1]	655,007	[1]	'
Pass (Risk Ratings 1-5) [Member] | Small Credit-Scored Business Loans [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	109,000		94,000		'
Pass (Risk Ratings 1-5) [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	234,787	[1]	225,329	[1]	'
Pass (Risk Ratings 1-5) [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	514,857	[1]	511,967	[1]	'
Pass (Risk Ratings 1-5) [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	342,524	[1]	291,992	[1]	'
Special mention [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	40,675		18,115		'
Special mention [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	5,147		6,614		'
Special mention [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Special mention [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		350		'
Special mention [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	34,137		10,484		'
Special mention [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,183		561		'
Special mention [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	64		0		'
Special mention [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	144		106		'
Substandard [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	74,689		90,888		'
Substandard [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	28,394		26,979		'
Substandard [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,217		5,630		'
Substandard [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	16,737		18,758		'
Substandard [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	9,372		16,669		'
Substandard [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	4,078		2,401		'
Substandard [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	12,350		17,527		'
Substandard [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	2,541		2,924		'
Doubtful [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	283		553		'
Doubtful [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	265		544		'
Doubtful [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Doubtful [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Doubtful [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	7		9		'
Doubtful [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Doubtful [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Doubtful [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	11		0		'
Loss [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Loss [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	0		0		'
Performing loans [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	3,786,916		3,393,677		'
Performing loans [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,396,923		1,188,771		'
Performing loans [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	183,547		137,153		'
Performing loans [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	380,222		350,065		'
Performing loans [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	726,750		681,445		'
Performing loans [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	239,819		228,187		'
Performing loans [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	515,879		514,351		'
Performing loans [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	343,776		293,705		'
Nonperforming loans [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	19,779	[2]	24,768	[2]	'
Nonperforming loans [Member] | Commercial real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	3,694	[2]	6,287	[2]	'
Nonperforming loans [Member] | Multifamily real estate [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	397	[2]	0	[2]	'
Nonperforming loans [Member] | Construction and Land [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,285	[2]	1,193	[2]	'
Nonperforming loans [Member] | Commercial business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	1,338	[2]	724	[2]	'
Nonperforming loans [Member] | Agricultural Business [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	229	[2]	104	[2]	'
Nonperforming loans [Member] | One- to four-family [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	11,392	[2]	15,143	[2]	'
Nonperforming loans [Member] | Consumer [Member]	'		'		'
Financing Receivable, Recorded Investment [Line Items]	'		'		'
Total loans outstanding	$1,444	[2]	$1,317	[2]	'
[1]	The Pass category includes some performing loans that are part of homogenous pools which are not individually risk-rated. This includes all consumer loans, all one- to four-family residential loans and, as of September 30, 2014 and December 31, 2013, in the commercial business category, $109 million and $94 million, respectively, of credit-scored small business loans. As loans in these pools become non-performing, they are individually risk-rated.
[2]	Non-performing loans include non-accrual loans and loans past due greater than 90 days and on accrual status.

Recovered_Sheet6

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Age Analysis of Company's Past Due Loans) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	$1,343	$6,366	'
60 to 89 Days Past Due	6,357	4,086	'
90 Days or More Past Due	11,374	11,558	'
Total Past Due	19,074	22,010	'
Current	3,787,621	3,396,435	'
Total loans outstanding	3,806,695	3,418,445	3,275,436
Loans 90 Days or More Past Due and Accruing	4,377	2,860	'
Commerical real estate - owner-occupied [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	187	883	'
60 to 89 Days Past Due	1,620	550	'
90 Days or More Past Due	1,258	813	'
Total Past Due	3,065	2,246	'
Current	543,268	500,355	'
Total loans outstanding	546,333	502,601	'
Loans 90 Days or More Past Due and Accruing	993	0	'
Commerical real estate - investment properties [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	0	'
60 to 89 Days Past Due	0	0	'
90 Days or More Past Due	267	0	'
Total Past Due	267	0	'
Current	854,017	692,457	'
Total loans outstanding	854,284	692,457	'
Loans 90 Days or More Past Due and Accruing	0	0	'
Multifamily real estate [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	1,845	'
60 to 89 Days Past Due	0	785	'
90 Days or More Past Due	0	0	'
Total Past Due	0	2,630	'
Current	183,944	134,523	'
Total loans outstanding	183,944	137,153	133,770
Loans 90 Days or More Past Due and Accruing	0	0	'
Commercial construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	0	'
60 to 89 Days Past Due	0	0	'
90 Days or More Past Due	0	0	'
Total Past Due	0	0	'
Current	18,606	12,168	'
Total loans outstanding	18,606	12,168	'
Loans 90 Days or More Past Due and Accruing	0	0	'
Multifamily construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	0	'
60 to 89 Days Past Due	0	0	'
90 Days or More Past Due	0	0	'
Total Past Due	0	0	'
Current	48,606	52,081	'
Total loans outstanding	48,606	52,081	'
Loans 90 Days or More Past Due and Accruing	0	0	'
One-to four-family construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	9	'
60 to 89 Days Past Due	0	7	'
90 Days or More Past Due	0	4	'
Total Past Due	0	20	'
Current	214,141	200,844	'
Total loans outstanding	214,141	200,864	'
Loans 90 Days or More Past Due and Accruing	0	0	'
Land and land development - residential [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	0	'
60 to 89 Days Past Due	0	0	'
90 Days or More Past Due	750	251	'
Total Past Due	750	251	'
Current	88,899	75,444	'
Total loans outstanding	89,649	75,695	'
Loans 90 Days or More Past Due and Accruing	0	0	'
Land and land development - commercial [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	0	0	'
60 to 89 Days Past Due	0	0	'
90 Days or More Past Due	0	0	'
Total Past Due	0	0	'
Current	10,505	10,450	'
Total loans outstanding	10,505	10,450	'
Loans 90 Days or More Past Due and Accruing	0	0	'
Commercial business [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	188	2,001	'
60 to 89 Days Past Due	145	2	'
90 Days or More Past Due	899	299	'
Total Past Due	1,232	2,302	'
Current	726,856	679,867	'
Total loans outstanding	728,088	682,169	635,658
Loans 90 Days or More Past Due and Accruing	301	0	'
Agricultural business, including secured by farmland [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	14	0	'
60 to 89 Days Past Due	552	0	'
90 Days or More Past Due	229	0	'
Total Past Due	795	0	'
Current	239,253	228,291	'
Total loans outstanding	240,048	228,291	223,187
Loans 90 Days or More Past Due and Accruing	0	105	'
One- to four-family residential [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	240	521	'
60 to 89 Days Past Due	3,401	2,550	'
90 Days or More Past Due	7,274	9,142	'
Total Past Due	10,915	12,213	'
Current	516,356	517,281	'
Total loans outstanding	527,271	529,494	543,263
Loans 90 Days or More Past Due and Accruing	2,777	2,611	'
Consumer secured by one- to four-family [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	368	723	'
60 to 89 Days Past Due	572	93	'
90 Days or More Past Due	176	918	'
Total Past Due	1,116	1,734	'
Current	214,269	171,454	'
Total loans outstanding	215,385	173,188	'
Loans 90 Days or More Past Due and Accruing	0	13	'
Consumer - other [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30 to 59 Days Past Due	346	384	'
60 to 89 Days Past Due	67	99	'
90 Days or More Past Due	521	131	'
Total Past Due	934	614	'
Current	128,901	121,220	'
Total loans outstanding	129,835	121,834	'
Loans 90 Days or More Past Due and Accruing	$306	$131	'

Recovered_Sheet7

LOANS RECEIVABLE AND THE ALLOWANCE FOR LOAN LOSSES (Allowance for Loan Losses) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	$74,310	$76,121	$74,258	$76,759	'
PROVISION FOR LOAN LOSSES	0	0	0	0	'
Recoveries	1,217	1,529	4,463	5,668	'
Charge-offs	-1,196	-1,725	-4,390	-6,502	'
Ending balance	74,331	75,925	74,331	75,925	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	3,419	5,823	3,419	5,823	'
Allowance collectively evaluated for impairment	70,912	70,102	70,912	70,102	'
Total allowance for loan losses	74,331	75,925	74,331	75,925	'
Loans individually evaluated for impairment	35,923	59,525	35,923	59,525	'
Loans collectively evaluated for impairment	3,770,772	3,215,911	3,770,772	3,215,911	'
Total loans outstanding	3,806,695	3,275,436	3,806,695	3,275,436	3,418,445
Commercial real estate [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	18,884	14,898	16,759	15,322	'
PROVISION FOR LOAN LOSSES	527	1,239	3,321	-383	'
Recoveries	94	331	664	2,295	'
Charge-offs	0	-850	-1,239	-1,616	'
Ending balance	19,505	15,618	19,505	15,618	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	755	459	755	459	'
Allowance collectively evaluated for impairment	18,750	15,159	18,750	15,159	'
Total allowance for loan losses	19,505	15,618	19,505	15,618	'
Loans individually evaluated for impairment	8,070	9,137	8,070	9,137	'
Loans collectively evaluated for impairment	1,392,547	1,112,961	1,392,547	1,112,961	'
Total loans outstanding	1,400,617	1,122,098	1,400,617	1,122,098	1,195,058
Multifamily real estate [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	5,765	4,973	5,306	4,506	'
PROVISION FOR LOAN LOSSES	-853	310	-394	777	'
Recoveries	0	0	0	0	'
Charge-offs	-20	0	-20	0	'
Ending balance	4,892	5,283	4,892	5,283	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	91	1,256	91	1,256	'
Allowance collectively evaluated for impairment	4,801	4,027	4,801	4,027	'
Total allowance for loan losses	4,892	5,283	4,892	5,283	'
Loans individually evaluated for impairment	791	5,810	791	5,810	'
Loans collectively evaluated for impairment	183,153	127,960	183,153	127,960	'
Total loans outstanding	183,944	133,770	183,944	133,770	137,153
Construction and Land [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	17,837	16,625	17,640	14,991	'
PROVISION FOR LOAN LOSSES	2,858	-464	2,558	1,586	'
Recoveries	84	507	788	945	'
Charge-offs	0	0	-207	-854	'
Ending balance	20,779	16,668	20,779	16,668	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	1,269	2,182	1,269	2,182	'
Allowance collectively evaluated for impairment	19,510	14,486	19,510	14,486	'
Total allowance for loan losses	20,779	16,668	20,779	16,668	'
Loans individually evaluated for impairment	6,643	13,613	6,643	13,613	'
Loans collectively evaluated for impairment	374,864	319,999	374,864	319,999	'
Total loans outstanding	381,507	333,612	381,507	333,612	351,258
Commercial business [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	12,014	10,806	11,773	9,957	'
PROVISION FOR LOAN LOSSES	490	-223	1,150	901	'
Recoveries	256	339	835	1,391	'
Charge-offs	-83	-246	-1,081	-1,573	'
Ending balance	12,677	10,676	12,677	10,676	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	103	202	103	202	'
Allowance collectively evaluated for impairment	12,574	10,474	12,574	10,474	'
Total allowance for loan losses	12,677	10,676	12,677	10,676	'
Loans individually evaluated for impairment	880	1,115	880	1,115	'
Loans collectively evaluated for impairment	727,208	634,543	727,208	634,543	'
Total loans outstanding	728,088	635,658	728,088	635,658	682,169
Agricultural Business [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	2,824	3,805	2,841	2,295	'
PROVISION FOR LOAN LOSSES	-339	-411	-1,017	752	'
Recoveries	587	265	1,248	612	'
Charge-offs	-125	-248	-125	-248	'
Ending balance	2,947	3,411	2,947	3,411	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	0	0	0	0	'
Allowance collectively evaluated for impairment	2,947	3,411	2,947	3,411	'
Total allowance for loan losses	2,947	3,411	2,947	3,411	'
Loans individually evaluated for impairment	0	0	0	0	'
Loans collectively evaluated for impairment	240,048	223,187	240,048	223,187	'
Total loans outstanding	240,048	223,187	240,048	223,187	228,291
One- to four-family [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	9,270	14,974	11,486	16,475	'
PROVISION FOR LOAN LOSSES	-38	-1,599	-2,253	-2,166	'
Recoveries	143	19	535	138	'
Charge-offs	-239	-207	-632	-1,260	'
Ending balance	9,136	13,187	9,136	13,187	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	1,143	1,639	1,143	1,639	'
Allowance collectively evaluated for impairment	7,993	11,548	7,993	11,548	'
Total allowance for loan losses	9,136	13,187	9,136	13,187	'
Loans individually evaluated for impairment	18,890	28,711	18,890	28,711	'
Loans collectively evaluated for impairment	508,381	514,552	508,381	514,552	'
Total loans outstanding	527,271	543,263	527,271	543,263	529,494
Consumer [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	748	1,011	1,335	1,348	'
PROVISION FOR LOAN LOSSES	603	43	33	264	'
Recoveries	53	68	393	287	'
Charge-offs	-729	-174	-1,086	-951	'
Ending balance	675	948	675	948	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	58	85	58	85	'
Allowance collectively evaluated for impairment	617	863	617	863	'
Total allowance for loan losses	675	948	675	948	'
Loans individually evaluated for impairment	649	1,139	649	1,139	'
Loans collectively evaluated for impairment	344,571	282,709	344,571	282,709	'
Total loans outstanding	345,220	283,848	345,220	283,848	295,022
Unallocated Financing Receivables [Member]	'	'	'	'	'
Financing Receivable, Allowance for Loan Losses [Roll Forward]	'	'	'	'	'
Beginning balance	6,968	9,029	7,118	11,865	'
PROVISION FOR LOAN LOSSES	-3,248	1,105	-3,398	-1,731	'
Recoveries	0	0	0	0	'
Charge-offs	0	0	0	0	'
Ending balance	3,720	10,134	3,720	10,134	'
Financing Receivable, Allowance for Loan Losses, Additional Information [Abstract]	'	'	'	'	'
Allowance individually evaluated for impairment	0	0	0	0	'
Allowance collectively evaluated for impairment	3,720	10,134	3,720	10,134	'
Total allowance for loan losses	3,720	10,134	3,720	10,134	'
Loans individually evaluated for impairment	0	0	0	0	'
Loans collectively evaluated for impairment	0	0	0	0	'
Total loans outstanding	$0	$0	$0	$0	'

REAL_ESTATE_OWNED_NET_REO_Roll

REAL ESTATE OWNED, NET (REO Rollforward) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Real Estate Owned [Roll Forward]	'	'	'	'
Balance, beginning of the period	$4,388	$6,714	$4,044	$15,778
Additions from loan foreclosures	135	963	2,837	2,467
Additions from capitalized costs	0	297	35	344
Proceeds from dispositions of REO	-860	-3,970	-3,631	-15,758
Gain on sale of REO	265	1,005	680	2,477
Valuation adjustments in the period	0	-191	-37	-490
Balance, end of the period	$3,928	$4,818	$3,928	$4,818

REAL_ESTATE_OWNED_NET_REO_by_T

REAL ESTATE OWNED, NET (REO by Type and Geographic Location by State) (Details) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	$3,928	$4,388	$4,044	$4,818	$6,714	$15,778
Washington [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	1,516	'	'	'	'	'
Oregon [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	2,380	'	'	'	'	'
Idaho [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	32	'	'	'	'	'
Land development-residential [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	1,928	'	'	'	'	'
Land development-residential [Member] | Washington [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	259	'	'	'	'	'
Land development-residential [Member] | Oregon [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	1,637	'	'	'	'	'
Land development-residential [Member] | Idaho [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	32	'	'	'	'	'
One- to four-family real estate [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	2,000	'	'	'	'	'
One- to four-family real estate [Member] | Washington [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	1,257	'	'	'	'	'
One- to four-family real estate [Member] | Oregon [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	743	'	'	'	'	'
One- to four-family real estate [Member] | Idaho [Member]	'	'	'	'	'	'
Real Estate Owned [Line Items]	'	'	'	'	'	'
Real Estate Owned, Net	$0	'	'	'	'	'

INTANGIBLE_ASSETS_AND_MORTGAGE2

INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Finite-Lived Intangible Assets) (Details) (USD $)	3 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2007	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014
	acquisition	acquisition	acquisition	Core Deposit Intangibles [Member]	Core Deposit Intangibles [Member]	Minimum [Member]	Maximum [Member]
						Core Deposit Intangibles [Member]	Core Deposit Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]	'	'	'	'	'	'	'
Number of Bank Acquisitions, Created Finite-Lived Intangible Asset	1	1	3	'	'	'	'
Finite-Lived Intangible Asset, Useful Life	'	'	'	'	'	'3 years	'8 years
Finite-lived Intangible Assets [Roll Forward]	'	'	'	'	'	'	'
Balance, beginning of period	'	'	'	$2,449	$4,230	'	'
Additions through acquisitions	'	'	'	2,372	160	'	'
Amortization	'	'	'	-1,459	-1,941	'	'
Balance, end of period	'	'	'	$3,362	$2,449	'	'

INTANGIBLE_ASSETS_AND_MORTGAGE3

INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Estimated Annual Amortization Expense) (Details) (Core Deposit Intangibles [Member], USD $)	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Core Deposit Intangibles [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Remainder of 2014	$531	'	'
2015	1,007	'	'
2016	353	'	'
2017	321	'	'
2018	296	'	'
Thereafter	854	'	'
Finite-Lived Intangible Assets, net	$3,362	$2,449	$4,230

INTANGIBLE_ASSETS_AND_MORTGAGE4

INTANGIBLE ASSETS AND MORTGAGE SERVICING RIGHTS (Mortgage Servicing Rights) (Details) (Mortgage Servicing Rights [Member], USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Mortgage Servicing Rights [Member]	'		'		'		'		'
Morgage Servicing Rights at Amortized Value [Line Items]	'		'		'		'		'
Loans Serviced For Others	$1,219,000,000		'		$1,219,000,000		'		$1,116,000,000
Custodial Accounts	4,200,000		'		4,200,000		'		5,400,000
Servicing Asset at Amortized Value, Balance [Roll Forward]	'		'		'		'		'
Balance, beginning of the period	8,481,000		7,036,000		8,086,000		6,244,000		'
Amounts capitalized	846,000		769,000		2,215,000		2,352,000		'
Amortization	-543,000	[1]	-520,000	[1]	-1,517,000	[1]	-1,911,000	[1]	'
Valuation adjustments in the period	0		400,000		0		1,000,000		'
Balance, end of the period	8,784,000	[2]	7,685,000	[2]	8,784,000	[2]	7,685,000	[2]	'
Valuation allowance, end of period	$0	[2]	$300,000	[2]	$0	[2]	$300,000	[2]	'
[1]	Amortization of mortgage servicing rights is recorded as a reduction of loan servicing income and any unamortized balance is fully written off if the loan repays in full.
[2]	There was no valuation allowance as of September 30, 2014 and a $300,000 valuation allowance as of September 30, 2013.

DEPOSITS_AND_CUSTOMER_REPURCHA2

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Deposit Liabilities) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deposits:	'	'
Non-interest-bearing accounts	$1,304,720	$1,115,346
Interest-bearing checking	429,876	422,910
Regular savings accounts	899,868	798,764
Money market accounts	503,660	408,211
Total transaction and saving accounts	3,138,124	2,745,231
Certificates of deposit	852,994	872,695
Total deposits	3,991,118	3,617,926
Non-interest-bearing accounts, percent of total	32.70%	30.80%
Interest-bearing checking, percent of total	10.80%	11.70%
Regular savings accounts, percent of total	22.50%	22.10%
Money market accounts, percent of total	12.60%	11.30%
Total transaction and saving accounts, percent of total	78.60%	75.90%
Certificates of deposit, percent of total	21.40%	24.10%
Total deposits, percent of total	100.00%	100.00%
Included in total deposits:	'	'
Public fund transaction accounts	99,519	87,521
Public fund interest-bearing certificates	48,508	51,465
Total public deposits	148,027	138,986
Total brokered deposits	$41,249	$4,291
Public fund transaction accounts, percent of total	2.50%	2.40%
Public fund interest-bearing certificates, percent of total	1.20%	1.40%
Total public deposits, percent of total	3.70%	3.80%
Total brokered deposits, percent of total	1.00%	0.10%

DEPOSITS_AND_CUSTOMER_REPURCHA3

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Certificates of Deposit by Balance) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Time Deposits [Abstract]	'	'
Certificates of deposit less than $100,000	$405,788	$386,745
Certificates of deposit $100,000 through $250,000	285,239	308,130
Certificates of deposit more than $250,000	161,967	177,820
Total certificate accounts	$852,994	$872,695

DEPOSITS_AND_CUSTOMER_REPURCHA4

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Maturities of Certificates of Deposit) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Maturities of Time Deposits [Abstract]	'	'
Certificates which mature or reprice within one year or less	$641,098	$660,394
Certificates which mature or reprice after one year through two years	121,166	117,789
Certificates which mature or reprice after two years through three years	47,563	47,362
Certificates which mature or reprice after three years through four years	20,309	26,443
Certificates which mature or reprice after four years through five years	17,673	17,075
Certificates which mature or reprice after five years	5,185	3,632
Total certificate accounts	$852,994	$872,695

DEPOSITS_AND_CUSTOMER_REPURCHA5

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Geographic Concentration of Deposits) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deposit Liabilities [Line Items]	'	'
Total deposits	$3,991,118	$3,617,926
Percent of total deposits	100.00%	100.00%
Washington [Member]	'	'
Deposit Liabilities [Line Items]	'	'
Total deposits	2,889,675	'
Percent of total deposits	72.40%	'
Oregon [Member]	'	'
Deposit Liabilities [Line Items]	'	'
Total deposits	864,869	'
Percent of total deposits	21.70%	'
Idaho [Member]	'	'
Deposit Liabilities [Line Items]	'	'
Total deposits	$236,574	'
Percent of total deposits	5.90%	'

DEPOSITS_AND_CUSTOMER_REPURCHA6

DEPOSITS AND CUSTOMER REPURCHASE AGREEMENTS (Retail Repurchase Agreements) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking and Thrift [Abstract]	'	'
Retail repurchase agreements	$67,605	$83,056

FAIR_VALUE_ACCOUNTING_AND_MEAS2

FAIR VALUE ACCOUNTING AND MEASUREMENT (Asset Inputs) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014
In Thousands, unless otherwise specified			TRUP CDO Securities [Member]	TRUP CDO Securities [Member]	TPS Securities [Member]	TPS Securities [Member]	TPS Securities [Member]
			Income approach, using discounted cash-flow model [Member]	Income approach, using discounted cash-flow model [Member]	Income approach, using discounted cash-flow model [Member]	Income approach, using discounted cash-flow model [Member]	Income approach, using discounted cash-flow model [Member]
			Level 3 [Member]	Level 3 [Member]	Level 3 [Member]	Level 3 [Member]	Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'	'	'
Securities—trading, Amortized Cost	$58,390	$75,150	$20,000	$20,000	$19,000	'	$19,000
Asset gains (losses)	'	'	$1,900	$4,800	$35	'	$570
Discount Rate, Description of Variable Rate Basis	'	'	'	'	'three-month LIBOR	'three-month LIBOR	'
Discount Rate, Basis Spread on Variable Rate Basis	'	'	'	'	5.00%	5.25%	5.00%

FAIR_VALUE_ACCOUNTING_AND_MEAS3

FAIR VALUE ACCOUNTING AND MEASUREMENT (Liability Inputs) (Details) (Junior Subordinated Debt [Member], USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
					Discounted cash flows [Member]	Discounted cash flows [Member]	Discounted cash flows [Member]	Junior Subordinated Debentures with Variable Interest Rates Which Reset Quarterly [Member]	Junior Subordinated Debentures with Variable Interest Rates Which Reset Quarterly [Member]	Junior Subordinated Debentures with Variable Interest Rates Which Reset Quarterly [Member]
					Level 3 [Member]	Level 3 [Member]	Level 3 [Member]	Discounted cash flows [Member]	Minimum [Member]	Maximum [Member]
								Level 3 [Member]	Discounted cash flows [Member]	Discounted cash flows [Member]
									Level 3 [Member]	Level 3 [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]	'	'	'	'	'	'	'	'	'	'
Debt Instrument, Description of Variable Rate Basis	'	'	'	'	'	'	'	'three-month LIBOR	'	'
Debt Instrument, Basis Spread on Variable Rate	'	'	'	'	'	'	'	'	1.38%	3.35%
Discount Rate, Description of Variable Rate Basis	'	'	'	'	'three-month LIBOR	'three-month LIBOR	'three-month LIBOR	'	'	'
Discount Rate, Basis Spread on Variable Rate Basis	'	'	'	'	5.00%	5.25%	5.00%	'	'	'
Fair Value Loss on Instruments	$311	$166	$3,696	$574	$311	'	'	'	'	'

FAIR_VALUE_ACCOUNTING_AND_MEAS4

FAIR VALUE ACCOUNTING AND MEASUREMENT (Assets and Liabilities Measured at Fair Value) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	$433,745	$470,280
Securities—trading, Fair Value	51,076	62,472
Advances from FHLB at fair value	250	27,250
Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	433,745	470,280
Securities—trading, Fair Value	51,076	62,472
Total assets	489,991	537,828
Advances from FHLB at fair value	250	27,250
Junior subordinated debentures net of unamortized deferred issuance costs at fair value	77,624	73,928
Total liabilities	82,851	106,167
Recurring [Member] | Interest rate lock commitments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	226	130
Derivative liabilities	33	43
Recurring [Member] | Interest rate swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	4,944	4,946
Derivative liabilities	4,944	4,946
Recurring [Member] | U.S. Government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	43,293	58,660
Securities—trading, Fair Value	1,494	1,481
Recurring [Member] | Municipal bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	49,679	52,855
Securities—trading, Fair Value	1,707	5,023
Recurring [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	5,049	6,964
Recurring [Member] | TPS and TRUP CDOs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	29,013	35,140
Recurring [Member] | Mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	310,403	326,610
Securities—trading, Fair Value	18,800	20,760
Recurring [Member] | Asset-backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	25,321	25,191
Recurring [Member] | Equity securities and other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	62	68
Recurring [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Total assets	0	0
Advances from FHLB at fair value	0	0
Junior subordinated debentures net of unamortized deferred issuance costs at fair value	0	0
Total liabilities	0	0
Recurring [Member] | Level 1 [Member] | Interest rate lock commitments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 1 [Member] | Interest rate swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 1 [Member] | U.S. Government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 1 [Member] | Municipal bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 1 [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | TPS and TRUP CDOs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 1 [Member] | Mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 1 [Member] | Asset-backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Recurring [Member] | Level 1 [Member] | Equity securities and other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	433,745	470,280
Securities—trading, Fair Value	22,063	27,332
Total assets	460,978	502,688
Advances from FHLB at fair value	250	27,250
Junior subordinated debentures net of unamortized deferred issuance costs at fair value	0	0
Total liabilities	5,227	32,239
Recurring [Member] | Level 2 [Member] | Interest rate lock commitments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	226	130
Derivative liabilities	33	43
Recurring [Member] | Level 2 [Member] | Interest rate swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	4,944	4,946
Derivative liabilities	4,944	4,946
Recurring [Member] | Level 2 [Member] | U.S. Government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	43,293	58,660
Securities—trading, Fair Value	1,494	1,481
Recurring [Member] | Level 2 [Member] | Municipal bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	49,679	52,855
Securities—trading, Fair Value	1,707	5,023
Recurring [Member] | Level 2 [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	5,049	6,964
Recurring [Member] | Level 2 [Member] | TPS and TRUP CDOs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 2 [Member] | Mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	310,403	326,610
Securities—trading, Fair Value	18,800	20,760
Recurring [Member] | Level 2 [Member] | Asset-backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	25,321	25,191
Recurring [Member] | Level 2 [Member] | Equity securities and other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	62	68
Recurring [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	29,013	35,140
Total assets	29,013	35,140
Advances from FHLB at fair value	0	0
Junior subordinated debentures net of unamortized deferred issuance costs at fair value	77,624	73,928
Total liabilities	77,624	73,928
Recurring [Member] | Level 3 [Member] | Interest rate lock commitments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 3 [Member] | Interest rate swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 3 [Member] | U.S. Government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 3 [Member] | Municipal bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 3 [Member] | Corporate bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | TPS and TRUP CDOs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	29,013	35,140
Recurring [Member] | Level 3 [Member] | Mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Securities—trading, Fair Value	0	0
Recurring [Member] | Level 3 [Member] | Asset-backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—available-for-sale	0	0
Recurring [Member] | Level 3 [Member] | Equity securities and other [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities—trading, Fair Value	$0	$0

FAIR_VALUE_ACCOUNTING_AND_MEAS5

FAIR VALUE ACCOUNTING AND MEASUREMENT (Unobservable Inputs Rollforward) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Junior Subordinated Debt [Member]	'	'	'	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	$77,313	$73,471	$73,928	$73,063
Liabilities (gains) losses	311	166	3,696	574
Paydowns and maturities	0	'	0	'
Ending balance	77,624	73,637	77,624	73,637
TPS and TRUP CDOs [Member]	'	'	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'	'	'
Beginning balance	38,529	35,105	35,140	35,741
Assets gains (losses), including OTTI	1,969	-10	5,389	-646
Payowns and maturities	-11,485	'	-11,516	'
Ending balance	$29,013	$35,095	$29,013	$35,095

FAIR_VALUE_ACCOUNTING_AND_MEAS6

FAIR VALUE ACCOUNTING AND MEASUREMENT (Non-recurring Basis) (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'
Loans individually evaluated for impairment	$35,923,000		$59,525,000	$35,923,000		$59,525,000
Write-downs on loans individually evaluated for impairment	1,196,000		1,725,000	4,390,000		6,502,000
Allowance on loans individually evaluated for impairment	3,419,000		5,823,000	3,419,000		5,823,000
Loans collectively evaluated for impairment	3,770,772,000		3,215,911,000	3,770,772,000		3,215,911,000
Allowance on loans collectively evaluated for impairment	70,912,000		70,102,000	70,912,000		70,102,000
Nonrecurring [Member] | Level 3 [Member]	'		'	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'	'		'
Classifed loans	75,000,000		'	75,000,000		'
Impaired loans	50,166,000		'	50,166,000		'
Loans individually evaluated for impairment	35,923,000	[1]	'	35,923,000	[1]	'
Loans individually evaluated for impairment, original carrying value	38,262,000	[1]	'	38,262,000	[1]	'
Write-downs on loans individually evaluated for impairment	'		'	2,000,000		'
Allowance on loans individually evaluated for impairment	3,419,000	[1]	'	3,419,000	[1]	'
Loans collectively evaluated for impairment	14,243,000	[2]	'	14,243,000	[2]	'
Allowance on loans collectively evaluated for impairment	266,000	[2]	'	266,000	[2]	'
Impairment of real estate owned	$0		$191,000	$37,000		$490,000
[1]	Loans with a specific allowance reserve have been individually evaluated for impairment using either a discounted cash flow analysis or, for collateral dependent loans, current appraisals less costs to sell to establish realizable value. These analyses may identify a specific impairment amount needed or may conclude that no reserve is needed. Any specific impairment that is identified is included in the category’s Related Allowance column.
[2]	Loans without a specific allowance reserve have not been individually evaluated for impairment, but have been included in pools of homogeneous loans for evaluation of related allowance reserves.

FAIR_VALUE_ACCOUNTING_AND_MEAS7

FAIR VALUE ACCOUNTING AND MEASUREMENT (Assets Measured on Nonrecurring Basis) (Details) (Nonrecurring [Member], USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans	$0	$0
REO	0	0
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans	0	0
REO	0	0
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans	5,298	10,627
REO	3,928	4,044
Total Estimated Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans	5,298	10,627
REO	3,928	4,044
Net Gains/(Losses) Recognized During the Period [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans	-2,828	-4,890
REO	($458)	($853)

FAIR_VALUE_ACCOUNTING_AND_MEAS8

FAIR VALUE ACCOUNTING AND MEASUREMENT (Valuation Technique) (Details) (Weighted Average [Member], Discounted cash flows [Member], Level 3 [Member])	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Junior Subordinated Debt [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Discount rate	5.24%	5.50%
TPS Securities [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Discount rate	5.24%	5.50%
TRUP CDO Securities [Member]	'	'
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]	'	'
Discount rate	3.99%	3.85%

FAIR_VALUE_ACCOUNTING_AND_MEAS9

FAIR VALUE ACCOUNTING AND MEASUREMENT (Fair Value By Balance Sheet Location) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Securities—trading, Fair Value	$51,076	$62,472
Securities—available-for-sale	433,745	470,280
Securities—held-to-maturity	138,754	103,610
Liabilities:	'	'
FHLB advances at fair value	250	27,250
Carrying Value	'	'
Assets:	'	'
Cash and due from banks	151,725	137,349
Securities—trading, Fair Value	51,076	62,472
Securities—available-for-sale	433,745	470,280
Securities—held-to-maturity	133,069	102,513
Loans receivable held for sale	6,949	2,734
Loans receivable	3,799,746	3,415,711
FHLB stock	29,106	35,390
Bank-owned life insurance	63,293	61,945
Mortgage servicing rights	8,784	8,086
Derivatives	5,170	5,076
Liabilities:	'	'
Demand, interest checking and money market accounts	2,238,256	1,946,467
Regular savings	899,868	798,764
Certificates of deposit	852,994	872,695
FHLB advances at fair value	250	27,250
Junior subordinated debentures at fair value	77,624	73,928
Other borrowings	67,605	83,056
Derivatives	4,977	4,989
Estimated Fair Value	'	'
Assets:	'	'
Cash and due from banks	151,725	137,349
Securities—trading, Fair Value	51,076	62,472
Securities—available-for-sale	433,745	470,280
Securities—held-to-maturity	138,754	103,610
Loans receivable held for sale	7,044	2,751
Loans receivable	3,676,346	3,297,936
FHLB stock	29,106	35,390
Bank-owned life insurance	63,293	61,945
Mortgage servicing rights	12,585	11,529
Derivatives	5,170	5,076
Liabilities:	'	'
Demand, interest checking and money market accounts	2,001,116	1,697,095
Regular savings	794,624	695,863
Certificates of deposit	846,973	867,904
FHLB advances at fair value	250	27,250
Junior subordinated debentures at fair value	77,624	73,928
Other borrowings	67,605	83,056
Derivatives	$4,977	$4,989

Recovered_Sheet8

FAIR VALUE ACCOUNTING AND MEASUREMENT (Commitments) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Commitments to originate loans held for sale [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	$31,071,000	$21,434,000
Commitments to sell loans [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	13,697,000	9,378,000
Commitments to originate loans [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	27,272,000	15,776,000
Commitment to fund loans [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	1,235,000,000	1,097,000,000
Commitment to fund loans [Member] | Level 2 [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, carrying value	0	0
Commitments to purchase securities [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	0	0
Number of commitments to purchase securities	0	0
Commitments to sell mortgage backed securities [Member]	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'
Commitments to fund loans, notional amount	$22,468,000	$15,200,000

CALCULATION_OF_WEIGHTED_AVERAG2

CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS (LOSS) PER SHARE (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Earnings Per Share [Abstract]	'	'	'	'	'
Net income	$14,843	$11,665	$42,421	$35,001	$46,555
Basic weighted average shares outstanding	19,373	19,338	19,353	19,348	'
Plus unvested restricted stock	47	59	33	55	'
Diluted weighted shares outstanding	19,420	19,397	19,386	19,403	'
Earnings (loss) per common share	'	'	'	'	'
Basic (in dollars per share)	$0.77	$0.60	$2.19	$1.81	'
Diluted (in dollars per share)	$0.76	$0.60	$2.19	$1.80	'

CALCULATION_OF_WEIGHTED_AVERAG3

CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS (LOSS) PER SHARE - Textuals (Details) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014
Stock Options [Member]	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	19,964
Warrant [Member] | U.S. Treasury Capital Purchase Program [Member] | Common Stock [Member]	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'
Warrants outstanding	18.6
Warrant [Member] | U.S. Treasury Capital Purchase Program [Member] | Common Stock [Member] | Warrant [Member]	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'
Warrants outstanding, number of shares	243,998

STOCKBASED_COMPENSATION_PLANS_1

STOCK-BASED COMPENSATION PLANS AND STOCK OPTIONS (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Apr. 24, 2012

Jun. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Apr. 22, 2014

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

2012 Restricted Stock Plan [Member]

2012 Restricted Stock Plan [Member]

2012 Restricted Stock Plan [Member]

SOPs [Member]

SOPs [Member]

SOPs [Member]

SOPs [Member]

Banner Corporation Long-Term Incentive Plan [Member]

Banner Corporation Long-Term Incentive Plan [Member]

Banner Corporation Long-Term Incentive Plan [Member]

Banner Corporation Long-Term Incentive Plan [Member]

2014 Omnibus Incentive Plan [Member]

2014 Omnibus Incentive Plan [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Stock Options [Member]

Stock Options [Member]

Stock Options [Member]

Stock Options [Member]

Stock Appreciation Rights (SARs) [Member]

Stock Appreciation Rights (SARs) [Member]

Stock Appreciation Rights (SARs) [Member]

Stock Appreciation Rights (SARs) [Member]

Restricted Stock [Member]

Restricted Stock [Member]

increment

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Shares Authorized

'

'

'

'

'

'

300,000

'

'

2,284,186

'

2,284,186

'

'

'

'

'

'

900,000

Number of Increments Shares Vest Annually

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

Award Vesting Period

'

'

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Contractual Term

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

Restricted stock granted

'

'

'

'

'

'

'

267,827

'

'

'

'

'

'

'

'

'

9,352

'

Restricted stock grants, shares vested

'

'

'

'

'

'

'

87,139

'

'

'

'

'

'

'

'

'

'

'

Restricted stock grants, shares non-vested

'

'

'

'

'

'

'

'

180,688

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Expense

'

'

$710,000

$482,000

$1,800,000

$1,000,000

'

'

'

$0

$0

$0

$0

$16,000

$286,000

$122,000

$526,000

'

'

Compensation Cost Not yet Recognized

'

'

4,900,000

'

4,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Compensation Cost Not yet Recognized, Period for Recognition

'

'

'

'

'33 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation, Shares Authorized Under Stock Option Plans, Exercise Price Percentage of Fair Value of Stock

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

Annual Vesting Percentage

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

Award Termination

'

'

'

'

'

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Award Forfeiture

'

'

'

'

'

'

'

'

'

'

'

'90 days

'

'

'

'

'

'

'

Options, Grants in Period

'

'

'

'

'

'

'

'

'

0

0

0

0

'

'

'

'

'

'

Oprtions, Exercises in Period

'

'

'

'

'

'

'

'

'

0

0

0

0

'

'

'

'

'

'

Deferred compensation

$16,359,000

$16,442,000

'

'

'

'

'

'

'

'

'

'

'

$867,000

'

$867,000

'

'

'

COMMITMENTS_AND_CONTINGENCIES_1

COMMITMENTS AND CONTINGENCIES (Commitments Without Recorded Liability) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Number of Properties Subject to Non-cancelable Operating Leases	65	'	'
Mortgage loan applications, day interest rate is locked	'45 days	'	'
Minimum [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Mortgage loan applications, day interest rate is locked	'30 days	'	'
Maximum [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Mortgage loan applications, day interest rate is locked	'60 days	'	'
Commitments to extend credit [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	$1,197,737	'	$1,073,897
Standby letters of credit and financial guarantees [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	10,004	'	6,990
Commitments to originate loans [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	27,272	'	15,776
Commitments to originate loans held for sale [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	31,071	'	21,434
Commitmenst to sell loans secured by one- to four residential properties [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	13,697	'	9,378
Counterparty default losses on forward contracts	0	0	'
Commitments to sell securities related to mortgage banking activities [Member]	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contract or Notional Amount	22,468	'	15,200
Counterparty default losses on forward contracts	$0	$0	'

DERIVATIVES_AND_HEDGING_Deriva

DERIVATIVES AND HEDGING (Derivatives Designated as Hedging, by Balance Sheet Location) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	$4,944,000		$4,946,000
Liability Derivatives, Fair Value	4,944,000		4,946,000
Interest rate swaps [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	4,944,000		4,946,000
Liability Derivatives, Fair Value	4,944,000		4,946,000
Interest rate swaps [Member] | Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Notional/Contract Amount	7,175,000		7,420,000
Liability Derivatives, Notional/Contract Amount	7,175,000		7,420,000
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Loans Receivable [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	1,161,000	[1]	1,295,000	[1]
Interest rate swaps [Member] | Designated as Hedging Instrument [Member] | Other liabilities [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Liability Derivatives, Fair Value	$1,161,000	[2]	$1,295,000	[2]
[1]	Included in Loans receivable on the Consolidated Statements of Financial Condition.
[2]	Included in Other liabilities on the Consolidated Statements of Financial Condition.

DERIVATIVES_AND_HEDGING_Deriva1

DERIVATIVES AND HEDGING (Derivatives Not Designated as Hedging, by Balance Sheet Location) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	$4,944,000		$4,946,000
Liability Derivatives, Fair Value	4,944,000		4,946,000
Interest rate swaps [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	4,944,000		4,946,000
Liability Derivatives, Fair Value	4,944,000		4,946,000
Not Designated as Hedging Instrument [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Notional/Contract Amount	167,504,000		171,755,000
Liability Derivatives, Notional/Contract Amount	169,495,000		142,448,000
Not Designated as Hedging Instrument [Member] | Other assets [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	4,008,000	[1]	3,781,000	[1]
Not Designated as Hedging Instrument [Member] | Other liabilities [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Liability Derivatives, Fair Value	3,815,000	[2]	3,694,000	[2]
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Notional/Contract Amount	136,434,000		135,122,000
Liability Derivatives, Notional/Contract Amount	136,434,000		135,122,000
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Other assets [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	3,782,000	[1]	3,651,000	[1]
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Loans Receivable [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	603,000		791,000
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Other liabilities [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Liability Derivatives, Fair Value	3,782,000	[2]	3,651,000	[2]
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Notional/Contract Amount	20,477,000		14,107,000
Liability Derivatives, Notional/Contract Amount	10,593,000		7,326,000
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member] | Other assets [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	205,000	[1]	57,000	[1]
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member] | Other liabilities [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Liability Derivatives, Fair Value	21,000	[2]	43,000	[2]
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Notional/Contract Amount	10,593,000		22,526,000
Liability Derivatives, Notional/Contract Amount	22,468,000		0
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member] | Other assets [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Asset Derivatives, Fair Value	21,000	[1]	73,000	[1]
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member] | Other liabilities [Member]	'		'
Derivatives, Fair Value [Line Items]	'		'
Liability Derivatives, Fair Value	$12,000	[2]	$0	[2]
[1]	Included in Other assets on the Consolidated Statements of Financial Condition, with the exception of those interest rate swaps from prior to 2009 that were not designated in hedge relationships (with a fair value of $603,000 at September 30, 2014 and $791,000 at December 31, 2013), which are included in Loans receivable.
[2]	Included in Other liabilities on the Consolidated Statements of Financial Condition.

DERIVATIVES_AND_HEDGING_Gain_L

DERIVATIVES AND HEDGING (Gain (Loss) On Derivatives Not Designated in Hedging Relationship) (Details) (Not Designated as Hedging Instrument [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in income, net	($19)	($301)	$106	($295)
Mortgage loan commitments [Member] | Mortgage banking operations [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in income, net	-243	651	148	-165
Forward sales contracts [Member] | Mortgage banking operations [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (loss) recognized in income, net	$224	($952)	($42)	($130)

DERIVATIVES_AND_HEDGING_Narrat

DERIVATIVES AND HEDGING (Narrative) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Derivative net liability position	$4.60	$2.70
Collateral posted	$9.80	$8.90

DERIVATIVES_AND_HEDGING_Deriva2

DERIVATIVES AND HEDGING (Derivative Offsetting) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Offsetting Derivative Assets [Abstract]	'	'
Derivative Assets, Gross Amounts Recognized	$4,944,000	$4,946,000
Derivative Assets, Amounts offsett in the Statement of Financial Condition	0	0
Derivative Assets, Net Amounts in the Statement of Financial Condition	4,944,000	4,946,000
Derivative Assets, Netting Adjustment Per Applicable Master Netting Agreements	-212,000	-554,000
Derivative Assets, Fair Value of Financial Collateral in the Statement of Financial Condiation	0	0
Derivative Assets, Net Amount	4,732,000	4,392,000
Offsetting Derivative Liabilities [Abstract]	'	'
Derivative Liabilities, Gross Amounts Recognized	4,944,000	4,946,000
Derivative Liabilities, Amounts offset in the Statement of Financial Condition	0	0
Derivative Liabilities, Net Amounts of the Statement of Financial Condition	4,944,000	4,946,000
Derivative Liabilities, Net Adjustment Per Applicable Master Netting Agreements	-212,000	-554,000
Derivative Liabilities, Fair Value of Financial Collateral in the Statement of Financial Condition	-4,520,000	-2,657,000
Derivative Liabilities, Net Amount	212,000	1,735,000
Interest rate swaps [Member]	'	'
Offsetting Derivative Assets [Abstract]	'	'
Derivative Assets, Gross Amounts Recognized	4,944,000	4,946,000
Derivative Assets, Amounts offsett in the Statement of Financial Condition	0	0
Derivative Assets, Net Amounts in the Statement of Financial Condition	4,944,000	4,946,000
Derivative Assets, Netting Adjustment Per Applicable Master Netting Agreements	-212,000	-554,000
Derivative Assets, Fair Value of Financial Collateral in the Statement of Financial Condiation	0	0
Derivative Assets, Net Amount	4,732,000	4,392,000
Offsetting Derivative Liabilities [Abstract]	'	'
Derivative Liabilities, Gross Amounts Recognized	4,944,000	4,946,000
Derivative Liabilities, Amounts offset in the Statement of Financial Condition	0	0
Derivative Liabilities, Net Amounts of the Statement of Financial Condition	4,944,000	4,946,000
Derivative Liabilities, Net Adjustment Per Applicable Master Netting Agreements	-212,000	-554,000
Derivative Liabilities, Fair Value of Financial Collateral in the Statement of Financial Condition	-4,520,000	-2,657,000
Derivative Liabilities, Net Amount	$212,000	$1,735,000