10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

________________________________________________________ 

FORM 10-Q

________________________________________________________ 

(Mark One)

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2016.

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             .

Commission File Number 0-20288

 ________________________________________________________ 

COLUMBIA BANKING SYSTEM, INC.

(Exact name of registrant as specified in its charter)

 ________________________________________________________ 

Washington	91-1422237
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
1301 A Street Tacoma, Washington	98402-2156
(Address of principal executive offices)	(Zip Code)

(253) 305-1900

(Issuer’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report)

________________________________________________________ 

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

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

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

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨	Smaller reporting company	¨

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

The number of shares of common stock outstanding at April 30, 2016 was 58,004,075.

TABLE OF CONTENTS

		Page
	PART I — FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)
	Consolidated Balance Sheets - March 31, 2016 and December 31, 2015	1
	Consolidated Statements of Income - three months ended March 31, 2016 and 2015	2
	Consolidated Statements of Comprehensive Income - three months ended March 31, 2016 and 2015	3
	Consolidated Statements of Changes in Shareholders’ Equity - three months ended March 31, 2016 and 2015	4
	Consolidated Statements of Cash Flows - three months ended March 31, 2016 and 2015	5
	Notes to Unaudited Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	35
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	53
Item 4.	Controls and Procedures	53
	PART II — OTHER INFORMATION
Item 1.	Legal Proceedings	54
Item 1A.	Risk Factors	54
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	54
Item 3.	Defaults Upon Senior Securities	54
Item 4.	Mine Safety Disclosures	54
Item 5.	Other Information	54
Item 6.	Exhibits	55
	Signatures	56

i

PART I - FINANCIAL INFORMATION

Item 1. FINANCIAL STATEMENTS

CONSOLIDATED BALANCE SHEETS

Columbia Banking System, Inc.

(Unaudited)

			March 31, 2016		December 31, 2015
ASSETS			(in thousands)
Cash and due from banks			$	150,683	$	166,929
Interest-earning deposits with banks			38,248		8,373
Total cash and cash equivalents			188,931		175,302
Securities available for sale at fair value (amortized cost of $2,156,999 and $2,157,610, respectively)			2,186,166		2,157,694
Federal Home Loan Bank stock at cost			10,241		12,722
Loans held for sale			3,681		4,509
Loans, net of unearned income of ($39,410) and ($42,373), respectively			5,877,283		5,815,027
Less: allowance for loan and lease losses			69,264		68,172
Loans, net			5,808,019		5,746,855
FDIC loss-sharing asset			5,954		6,568
Interest receivable			29,304		27,877
Premises and equipment, net			158,101		164,239
Other real estate owned			12,427		13,738
Goodwill			382,762		382,762
Other intangible assets, net			21,994		23,577
Other assets			228,352		235,854
Total assets			$	9,035,932	$	8,951,697
LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits:
Noninterest-bearing			$	3,553,468	$	3,507,358
Interest-bearing			4,043,481		3,931,471
Total deposits			7,596,949		7,438,829
Federal Home Loan Bank advances			6,521		68,531
Securities sold under agreements to repurchase			73,839		99,699
Other liabilities			97,835		102,510
Total liabilities			7,775,144		7,709,569
Commitments and contingent liabilities (Note 10)
Shareholders’ equity:
	March 31, 2016	December 31, 2015
Preferred stock (no par value)	(in thousands)
Authorized shares	2,000	2,000
Issued and outstanding	9	9	2,217		2,217
Common stock (no par value)
Authorized shares	115,000	115,000
Issued and outstanding	58,008	57,724	991,026		990,281
Retained earnings			255,202		255,925
Accumulated other comprehensive income (loss)			12,343		(6,295		)
Total shareholders’ equity			1,260,788		1,242,128
Total liabilities and shareholders’ equity			$	9,035,932	$	8,951,697

See accompanying Notes to unaudited Consolidated Financial Statements.

1

CONSOLIDATED STATEMENTS OF INCOME

Columbia Banking System, Inc.

(Unaudited)

	Three Months Ended
	March 31,
	2016			2015 (1)
	(in thousands except per share amounts)
Interest Income
Loans	$	70,316		$	70,822
Taxable securities	8,017			7,526
Tax-exempt securities	2,803			3,042
Deposits in banks	38			27
Total interest income	81,174			81,417
Interest Expense
Deposits	742			748
Federal Home Loan Bank advances	124			159
Other borrowings	138			146
Total interest expense	1,004			1,053
Net Interest Income	80,170			80,364
Provision for loan and lease losses	5,254			1,209
Net interest income after provision for loan and lease losses	74,916			79,155
Noninterest Income
Deposit account and treasury management fees (1)	6,989			6,860
Card revenue (1)	5,652			5,363
Financial services and trust revenue (1)	2,821			3,124
Loan revenue (1)	2,262			2,603
Merchant processing revenue	2,102			2,040
Bank owned life insurance	1,116			1,078
Investment securities gains, net	373			721
Change in FDIC loss-sharing asset	(1,103		)	150
Other (1)	434			828
Total noninterest income	20,646			22,767
Noninterest Expense
Compensation and employee benefits	36,319			39,100
Occupancy	10,173			7,993
Merchant processing expense	1,033			977
Advertising and promotion	842			931
Data processing	4,146			4,984
Legal and professional fees	1,325			2,507
Taxes, licenses and fees	1,290			1,232
Regulatory premiums	1,141			1,221
Net cost (benefit) of operation of other real estate owned	104			(1,246		)
Amortization of intangibles	1,583			1,817
Other	7,118			7,218
Total noninterest expense	65,074			66,734
Income before income taxes	30,488			35,188
Income tax provision	9,229			10,827
Net Income	$	21,259		$	24,361
Earnings per common share
Basic	$	0.37		$	0.42
Diluted	$	0.37		$	0.42
Dividends paid per common share	$	0.38		$	0.30
Weighted average number of common shares outstanding	57,114			56,965
Weighted average number of diluted common shares outstanding	57,125			56,978

__________

(1) Reclassified to conform to the current period’s presentation. Reclassifications consisted of disaggregating fee revenue previously presented in ‘Service charges and other fees’ and certain revenue previously presented in ‘Other’ into the presentation above. The Company made these reclassifications to provide additional information about its sources of noninterest income. There was no change to total noninterest income as previously reported as a result of these reclassifications.

See accompanying Notes to unaudited Consolidated Financial Statements.

2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Columbia Banking System, Inc.

(Unaudited)

	Three Months Ended
	March 31,
	2016			2015
	(in thousands)
Net income	$	21,259		$	24,361
Other comprehensive income (loss), net of tax:
Unrealized gain from securities:
Net unrealized holding gain from available for sale securities arising during the period, net of tax of ($10,686) and ($5,338)	18,770			9,376
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $135 and $262	(238		)	(459		)
Net unrealized gain from securities, net of reclassification adjustment	18,532			8,917
Pension plan liability adjustment:
Net unrealized loss from unfunded defined benefit plan liability arising during the period, net of tax of $0 and $159	—			(280		)
Amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($61) and ($16)	106			28
Pension plan liability adjustment, net	106			(252		)
Other comprehensive income	18,638			8,665
Total comprehensive income	$	39,897		$	33,026

See accompanying Notes to unaudited Consolidated Financial Statements.

3

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

Columbia Banking System, Inc.

(Unaudited)

	Preferred Stock			Common Stock					Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Total Shareholders’ Equity
	Number of Shares	Amount		Number of Shares		Amount
	(in thousands)
Balance at January 1, 2016	9	$	2,217	57,724		$	990,281		$	255,925		$	(6,295	)	$	1,242,128
Net income	—	—		—		—			21,259			—			21,259
Other comprehensive income	—	—		—		—			—			18,638			18,638
Issuance of common stock - stock option and other plans	—	—		20		598			—			—			598
Issuance of common stock - restricted stock awards, net of canceled awards	—	—		299		1,180			—			—			1,180
Purchase and retirement of common stock	—	—		(35	)	(1,033		)	—			—			(1,033		)
Preferred dividends	—	—		—		—			(39		)	—			(39		)
Cash dividends paid on common stock	—	—		—		—			(21,943		)	—			(21,943		)
Balance at March 31, 2016	9	$	2,217	58,008		$	991,026		$	255,202		$	12,343		$	1,260,788
Balance at January 1, 2015	9	$	2,217	57,437		$	985,839		$	234,498		$	5,621		$	1,228,175
Net income	—	—		—		—			24,361			—			24,361
Other comprehensive income	—	—		—		—			—			8,665			8,665
Issuance of common stock - stock option and other plans	—	—		17		428			—			—			428
Issuance of common stock - restricted stock awards, net of canceled awards	—	—		273		862			—			—			862
Purchase and retirement of common stock	—	—		(28	)	(781		)	—			—			(781		)
Preferred dividends	—	—		—		—			(31		)	—			(31		)
Cash dividends paid on common stock	—	—		—		—			(17,236		)	—			(17,236		)
Balance at March 31, 2015	9	$	2,217	57,699		$	986,348		$	241,592		$	14,286		$	1,244,443

See accompanying Notes to unaudited Consolidated Financial Statements.

4

CONSOLIDATED STATEMENTS OF CASH FLOWS Columbia Banking System, Inc. (Unaudited)
	Three Months Ended March 31,
	2016			2015 (1)
	(in thousands)
Cash Flows From Operating Activities
Net income	$	21,259		$	24,361
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses	5,254			1,209
Stock-based compensation expense	1,180			862
Depreciation, amortization and accretion	10,798			7,735
Investment securities gain, net	(373		)	(721		)
Net realized (gain) loss on sale of other assets	106			(306		)
Net realized (gain) loss on sale and valuation adjustments of other real estate owned (1)	90			(1,539		)
Originations of loans held for sale (1)	(19,174		)	(14,890		)
Proceeds from sales of loans held for sale (1)	20,002			12,461
Net change in:
Interest receivable	(1,427		)	(1,286		)
Interest payable	(55		)	(79		)
Other assets	(3,731		)	(4,531		)
Other liabilities	(4,619		)	3,680
Net cash provided by operating activities	29,310			26,956
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected	(64,056		)	(12,443		)
Purchases of:
Securities available for sale	(95,686		)	(11,362		)
Premises and equipment	(445		)	(4,032		)
Federal Home Loan Bank stock	(10,520		)	—
Proceeds from:
FDIC reimbursement on loss-sharing asset	258			1,138
Sales of securities available for sale	38,876			57,243
Principal repayments and maturities of securities available for sale	52,422			54,451
Sales of premises and equipment and loans held for investment	1,911			7,384
Redemption of Federal Home Loan Bank stock (1)	13,001			361
Sales of other real estate and other personal property owned (1)	1,326			5,067
Payments to FDIC related to loss-sharing asset	(611		)	(479		)
Net cash provided by (used in) investing activities	(63,524		)	97,328
Cash Flows From Financing Activities
Net increase in deposits	158,120			150,243
Net decrease in sweep repurchase agreements	(25,860		)	(8,228		)
Proceeds from:
Federal Home Loan Bank advances	165,000			624,000
Exercise of stock options	598			428
Payments for:
Repayment of Federal Home Loan Bank advances	(227,000		)	(804,000		)
Common stock dividends	(21,943		)	(17,236		)
Preferred stock dividends	(39		)	(31		)
Repayment of other borrowings	—			(8,248		)
Purchase and retirement of common stock	(1,033		)	(781		)
Net cash provided by (used in) financing activities	47,843			(63,853		)
Increase in cash and cash equivalents	13,629			60,431
Cash and cash equivalents at beginning of period	175,302			188,170
Cash and cash equivalents at end of period	$	188,931		$	248,601
Supplemental Information:
Cash paid during the period for:
Cash paid for interest	$	1,059		$	1,132
Cash paid for income tax	$	6,350		$	13
Non-cash investing and financing activities
Loans transferred to other real estate owned	$	105		$	4,692

(1) Reclassified to conform to the current period’s presentation. There were no changes to cash flows from operating, investing, or financing activities as a result of these reclassifications.

See accompanying Notes to unaudited Consolidated Financial Statements.

5

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Columbia Banking System, Inc.

1. Basis of Presentation and Significant Accounting Policies

Basis of Presentation

The interim unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X. The consolidated financial statements include the accounts of Columbia Banking System, Inc. (“we”, “our”, “Columbia” or the “Company”) and its subsidiaries, including its wholly owned banking subsidiary Columbia State Bank (“Columbia Bank” or the “Bank”) and Columbia Trust Company (“Columbia Trust”). All intercompany transactions and accounts have been eliminated in consolidation. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair statement of the results for the interim periods presented have been included. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of results to be anticipated for the year ending December 31, 2016. The accompanying interim unaudited consolidated financial statements should be read in conjunction with the financial statements and related notes contained in the Company’s 2015 Annual Report on Form 10-K.

Because of reclassifications, changes occurred in the manner in which certain comparative period noninterest income items were presented in the unaudited consolidated statements of income. Specifically, fee revenue previously presented as ‘Service charges and other fees’ and certain fee revenue previously presented as ‘Other’ were reclassified to conform to the current period presentation. The Company made these presentation changes to provide additional information about its sources of noninterest income. There was no change to total noninterest income as previously reported as a result of these reclassifications.

Significant Accounting Policies

The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2015 Annual Report on Form 10-K. There have not been any changes in our significant accounting policies compared to those contained in our 2015 Form 10-K disclosure for the year ended December 31, 2015.

2. Accounting Pronouncements Recently Issued

In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting. The amendments included in this ASU simplify several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. The amendments in ASU 2016-09 are effective for the first interim or annual period beginning after December 15, 2016. Early adoption is permitted. The Company is assessing the impact that this guidance will have on its consolidated financial statements as well as whether to early adopt this ASU.

In February 2016, the FASB issued ASU 2016-02, Leases. The amendments included in this ASU create a new accounting model for both lessees and lessors. The new guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms greater than 12 months. The amendments in ASU 2016-02 must be adopted using the modified retrospective approach and will be effective for the first interim or annual period beginning after December 15, 2018. Early adoption is permitted. The Company is assessing the impact that this guidance will have on its consolidated financial statements.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in ASU 2016-01 require all equity investments to be measured at fair value with changes in the fair value recognized through net income. The amendments in ASU 2016-01 also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, the amendments in this Update eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. The amendments in ASU 2016-01 are effective for the first interim or annual period beginning after December 15, 2017. The Company is assessing the impact that this guidance will have on its consolidated financial statements but does not expect the impact to be material.

6

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the codification. For public companies, this update was to be effective for interim and annual periods beginning after December 15, 2016. However, in August 2015, the FASB issued ASU 2015-14, which delayed the effective date of ASU 2014-09 by one year and permits companies to voluntarily adopt the new standard as of the original effective date. In March 2016, the FASB issued ASU 2016-08 and ASU 2016-10 to provide implementation guidance for ASU 2014-09. The Company is assessing the impact that this guidance will have on its consolidated financial statements but does not expect the impact to be material.

3. Securities

The following table summarizes the amortized cost, gross unrealized gains and losses and the resulting fair value of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,319,714	$	14,247	$	(3,861	)	$	1,330,100
State and municipal securities	477,544		14,257		(414		)	491,387
U.S. government agency and government-sponsored enterprise securities	353,910		5,031		—			358,941
U.S. government securities	547		—		—			547
Other securities	5,284		53		(146		)	5,191
Total	$	2,156,999	$	33,588	$	(4,421	)	$	2,186,166
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,296,955	$	4,525	$	(14,991	)	$	1,286,489
State and municipal securities	480,417		12,690		(938		)	492,169
U.S. government agency and government-sponsored enterprise securities	354,515		1,113		(1,846		)	353,782
U.S. government securities	20,439		—		(302		)	20,137
Other securities	5,284		24		(191		)	5,117
Total	$	2,157,610	$	18,352	$	(18,268	)	$	2,157,694

Proceeds from sales of securities available for sale were $38.9 million and $57.2 million for the three months ended March 31, 2016 and 2015, respectively. The following table provides the gross realized gains and losses on the sales of securities for the periods indicated:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Gross realized gains	$	373	$	730
Gross realized losses	—		(9		)
Net realized gains	$	373	$	721

7

The scheduled contractual maturities of investment securities available for sale at March 31, 2016 are presented as follows:

	March 31, 2016
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	39,056	$	39,243
Due after one year through five years	435,423		440,733
Due after five years through ten years	711,190		723,977
Due after ten years	966,046		977,022
Other securities with no stated maturity	5,284		5,191
Total investment securities available-for-sale	$	2,156,999	$	2,186,166

The following table summarizes the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	March 31, 2016
	(in thousands)
Washington and Oregon State to secure public deposits	$	339,424
Federal Reserve Bank to secure borrowings	48,879
Other securities pledged	156,551
Total securities pledged as collateral	$	544,854

The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016 and December 31, 2015:

	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	95,313	$	(533	)	$	190,975	$	(3,328	)	$	286,288	$	(3,861	)
State and municipal securities	25,702		(125		)	19,010		(289		)	44,712		(414		)
U.S. government agency and government-sponsored enterprise securities	4,063		—			500		—			4,563		—
Other securities	—		—			2,810		(146		)	2,810		(146		)
Total	$	125,078	$	(658	)	$	213,295	$	(3,763	)	$	338,373	$	(4,421	)
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	664,509	$	(7,610	)	$	214,325	$	(7,381	)	$	878,834	$	(14,991	)
State and municipal securities	48,261		(358		)	31,383		(580		)	79,644		(938		)
U.S. government agency and government-sponsored enterprise securities	193,400		(1,128		)	40,034		(718		)	233,434		(1,846		)
U.S. government securities	10,343		(136		)	9,794		(166		)	20,137		(302		)
Other securities	2,300		(15		)	2,780		(176		)	5,080		(191		)
Total	$	918,813	$	(9,247	)	$	298,316	$	(9,021	)	$	1,217,129	$	(18,268	)

8

At March 31, 2016, there were 74 U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations securities in an unrealized loss position, of which 45 were in a continuous loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates relative to where these investments fall within the yield curve and their individual characteristics. Because the Company does not intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there were 40 state and municipal government securities in an unrealized loss position, of which 20 were in a continuous loss position for 12 months or more. The unrealized losses on state and municipal securities were caused by interest rate changes or widening of market spreads subsequent to the purchase of the individual securities. Management monitors published credit ratings of these securities for adverse changes. As of March 31, 2016, none of the rated obligations of state and local government entities held by the Company had a below investment grade credit rating. Because the credit quality of these securities are investment grade and the Company does not intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there were two U.S. government agency and government-sponsored enterprise securities in an unrealized loss position, of which one was in a continuous loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates relative to where these investments fall within the yield curve and their individual characteristics. Because the Company does not currently intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there was one other security in an unrealized loss position, which was in a continuous unrealized loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates and the additional risk premium investors are demanding for investment securities with these characteristics. The Company does not consider this investment to be other-than-temporarily impaired at March 31, 2016 as it has the intent and ability to hold the investment for sufficient time to allow for recovery in the market value.

4. Loans

The Company’s loan portfolio includes originated and purchased loans. Originated loans and purchased loans for which there was no evidence of credit deterioration at their acquisition date and it was probable that we would be able to collect all contractually required payments are referred to collectively as loans, excluding purchased credit impaired loans. Purchased loans for which there was, at acquisition date, evidence of credit deterioration since their origination and it was probable that we would be unable to collect all contractually required payments are referred to as purchased credit impaired loans, or “PCI loans.”

9

The following is an analysis of the loan portfolio by segment (net of unearned income):

	March 31, 2016									December 31, 2015
	Loans, excluding PCI loans			PCI Loans			Total			Loans, excluding PCI loans			PCI Loans			Total
	(in thousands)
Commercial business	$	2,401,193		$	34,474		$	2,435,667		$	2,362,575		$	34,848		$	2,397,423
Real estate:
One-to-four family residential	175,050			22,720			197,770			176,295			23,938			200,233
Commercial and multifamily residential	2,520,352			93,979			2,614,331			2,491,736			99,389			2,591,125
Total real estate	2,695,402			116,699			2,812,101			2,668,031			123,327			2,791,358
Real estate construction:
One-to-four family residential	133,447			2,163			135,610			135,874			2,278			138,152
Commercial and multifamily residential	183,548			1,618			185,166			167,413			1,630			169,043
Total real estate construction	316,995			3,781			320,776			303,287			3,908			307,195
Consumer	329,902			18,247			348,149			342,601			18,823			361,424
Less: Net unearned income	(39,410		)	—			(39,410		)	(42,373		)	—			(42,373		)
Total loans, net of unearned income	5,704,082			173,201			5,877,283			5,634,121			180,906			5,815,027
Less: Allowance for loan and lease losses	(56,200		)	(13,064		)	(69,264		)	(54,446		)	(13,726		)	(68,172		)
Total loans, net	$	5,647,882		$	160,137		$	5,808,019		$	5,579,675		$	167,180		$	5,746,855
Loans held for sale	$	3,681		$	—		$	3,681		$	4,509		$	—		$	4,509

At March 31, 2016 and December 31, 2015, the Company had no material foreign activities. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington, Oregon and Idaho.

The Company has made loans to executive officers and directors of the Company and related interests. These loans are made on the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with unrelated persons and do not involve more than the normal risk of collectability. The aggregate dollar amount of these loans was $9.9 million at March 31, 2016 and $10.0 million at December 31, 2015. During the first three months of 2016, there were $55 thousand in advances and $96 thousand in repayments.

At March 31, 2016 and December 31, 2015, $2.21 billion and $2.22 billion of commercial and residential real estate loans were pledged as collateral on Federal Home Loan Bank of Des Moines (“FHLB”) borrowings and additional borrowing capacity. The Company has also pledged $50.2 million and $50.1 million of commercial loans to the Federal Reserve Bank for additional borrowing capacity at March 31, 2016 and December 31, 2015, respectively.

10

The following is an analysis of nonaccrual loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016				December 31, 2015
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business:
Secured	$	22,452	$	31,039	$	9,395	$	15,688
Unsecured	107		331		42		256
Real estate:
One-to-four family residential	730		1,702		820		1,866
Commercial & multifamily residential:
Commercial land	238		247		349		332
Income property	2,897		3,185		2,843		3,124
Owner occupied	4,982		7,473		6,321		8,943
Real estate construction:
One-to-four family residential:
Land and acquisition	205		231		362		385
Residential construction	563		563		566		679
Consumer	4,717		4,985		766		990
Total	$	36,891	$	49,756	$	21,464	$	32,263

11

Loans, excluding purchased credit impaired loans

The following is an aging of the recorded investment of the loan portfolio as of March 31, 2016 and December 31, 2015:

	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,277,121	$	4,148	$	311	$	—	$	4,459	$	22,452	$	2,304,032
Unsecured	91,785		684		—		—		684		107		92,576
Real estate:
One-to-four family residential	170,846		686		62		—		748		730		172,324
Commercial & multifamily residential:
Commercial land	218,925		—		—		—		—		238		219,163
Income property	1,321,566		—		—		—		—		2,897		1,324,463
Owner occupied	946,635		4,577		—		—		4,577		4,982		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		—		—		—		205		13,120
Residential construction	119,125		—		—		—		—		563		119,688
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		86,584
Owner occupied	94,743		—		—		—		—		—		94,743
Consumer	314,197		1,541		740		—		2,281		4,717		321,195
Total	$	5,654,442	$	11,636	$	1,113	$	—	$	12,749	$	36,891	$	5,704,082
	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,241,069	$	11,611	$	617	$	—	$	12,228	$	9,395	$	2,262,692
Unsecured	94,867		39		—		—		39		42		94,948
Real estate:
One-to-four family residential	170,913		1,637		66		—		1,703		820		173,436
Commercial & multifamily residential:
Commercial land	212,740		69		—		—		69		349		213,158
Income property	1,305,502		1,750		684		—		2,434		2,843		1,310,779
Owner occupied	939,396		599		—		—		599		6,321		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		—		—		—		362		14,750
Residential construction	119,809		—		—		—		—		566		120,375
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		83,634
Owner occupied	81,671		—		—		—		—		—		81,671
Consumer	328,219		2,597		780		—		3,377		766		332,362
Total	$	5,592,208	$	18,302	$	2,147	$	—	$	20,449	$	21,464	$	5,634,121

12

The following is an analysis of impaired loans as of March 31, 2016 and December 31, 2015:

	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,285,351	$	18,681	$	11,861	$	11,996	$	2,500	$	6,820	$	12,314
Unsecured	92,576		—		—		—		—		—		—
Real estate:
One-to-four family residential	171,660		664		—		—		—		664		1,093
Commercial & multifamily residential:
Commercial land	219,163		—		—		—		—		—		—
Income property	1,322,410		2,053		—		—		—		2,053		2,257
Owner occupied	951,216		4,978		—		—		—		4,978		7,390
Real estate construction:
One-to-four family residential:
Land and acquisition	12,810		310		—		—		—		310		334
Residential construction	119,126		562		—		—		—		562		562
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		—
Owner occupied	94,743		—		—		—		—		—		—
Consumer	319,628		1,567		15		15		15		1,552		1,634
Total	$	5,675,267	$	28,815	$	11,876	$	12,011	$	2,515	$	16,939	$	25,584
	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,257,168	$	5,524	$	690	$	718	$	321	$	4,834	$	6,455
Unsecured	94,948		—		—		—		—		—		—
Real estate:
One-to-four family residential	172,150		1,286		314		339		314		972		1,397
Commercial & multifamily residential:
Commercial land	213,158		—		—		—		—		—		—
Income property	1,308,673		2,106		—		—		—		2,106		2,311
Owner occupied	940,261		6,055		—		—		—		6,055		8,528
Real estate construction:
One-to-four family residential:
Land and acquisition	14,283		467		—		—		—		467		490
Residential construction	119,813		562		335		335		3		227		227
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		—
Owner occupied	81,671		—		—		—		—		—		—
Consumer	332,282		80		15		15		15		65		139
Total	$	5,618,041	$	16,080	$	1,354	$	1,407	$	653	$	14,726	$	19,547

13

The following table provides additional information on impaired loans for the three month periods indicated:

	Three Months Ended March 31,
	2016				2015
	Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans		Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
	(in thousands)
Commercial business:
Secured	$	12,103	$	17	$	10,698	$	7
Unsecured	—		—		1		—
Real estate:
One-to-four family residential	975		6		3,162		13
Commercial & multifamily residential:
Commercial land	—		—		235		—
Income property	2,080		3		4,168		10
Owner occupied	5,516		7		7,938		234
Real estate construction:
One-to-four family residential:
Land and acquisition	388		1		544		1
Residential construction	562		—		446		—
Consumer	824		2		404		2
Total	$	22,448	$	36	$	27,596	$	267

The following is an analysis of loans classified as troubled debt restructurings (“TDR”) during the three months ended March 31, 2016 and 2015:

	Three months ended March 31, 2016					Three months ended March 31, 2015
	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Commercial business:
Secured	3	$	1,370	$	1,370	—	$	—	$	—
Commercial and multifamily residential:
Owner occupied	1	250		250		—	—		—
Consumer	4	497		497		—	—		—
Total	8	$	2,117	$	2,117	—	$	—	$	—

The Company’s loans classified as TDR are loans that have been modified or the borrower has been granted special concessions due to financial difficulties that, if not for the challenges of the borrower, the Company would not otherwise consider. The TDR modifications or concessions are made to increase the likelihood that these borrowers with financial difficulties will be able to satisfy their debt obligations as amended. The concessions granted in the restructurings summarized in the table above largely consisted of maturity extensions, interest rate modifications or a combination of both. In limited circumstances, a reduction in the principal balance of the loan could also be made as a concession. Credit losses for loans classified as TDR are measured on the same basis as impaired loans. For impaired loans, an allowance is established when the collateral value less selling costs (or discounted cash flows or observable market price) of the impaired loan is lower than the recorded investment of that loan.

The Company had commitments to lend $7 thousand of additional funds on loans classified as TDR as of March 31, 2016. The Company had no such commitments at December 31, 2015. The Company did not have any loans modified as TDR that defaulted within twelve months of being modified as TDR during the three month periods ended March 31, 2016 and 2015.

14

Purchased Credit Impaired Loans

Purchased credit impaired (“PCI”) loans are accounted for under ASC 310-30 and initially measured at fair value based on expected future cash flows over the life of the loans. Loans that have common risk characteristics are aggregated into pools. The Company remeasures contractual and expected cash flows, at the pool-level, on a quarterly basis.

Contractual cash flows are calculated based upon the loan pool terms after applying a prepayment factor. Calculation of the applied prepayment factor for contractual cash flows is the same as described below for expected cash flows.

Inputs to the determination of expected cash flows include cumulative default and prepayment data as well as loss severity and recovery lag information. Cumulative default and prepayment data are calculated via a transition matrix. The transition matrix is a matrix of probability values that specifies the probability of a loan pool transitioning into a particular delinquency state (e.g. 0-30 days past due, 31 to 60 days, etc.) given its delinquency state at the remeasurement date. Loss severity factors are based upon either actual charge-off data within the loan pools or industry averages and recovery lags are based upon the collateral within the loan pools.

The excess of cash flows expected to be collected over the initial fair value of purchased credit impaired loans is referred to as the accretable yield and is accreted into interest income over the estimated life of the acquired loans using the effective yield method. Other adjustments to the accretable yield include changes in the estimated remaining life of the acquired loans, changes in expected cash flows and changes of indices for acquired loans with variable interest rates.

The following is an analysis of our PCI loans, net of related allowance for losses and remaining valuation discounts as of March 31, 2016 and December 31, 2015:

	March 31, 2016		December 31, 2015
	(in thousands)
Commercial business	$	38,209	$	38,784
Real estate:
One-to-four family residential	25,766		27,195
Commercial and multifamily residential	100,384		106,308
Total real estate	126,150		133,503
Real estate construction:
One-to-four family residential	2,200		2,326
Commercial and multifamily residential	1,809		1,834
Total real estate construction	4,009		4,160
Consumer	20,226		20,903
Subtotal of PCI loans	188,594		197,350
Less:
Valuation discount resulting from acquisition accounting	15,393		16,444
Allowance for loan losses	13,064		13,726
PCI loans, net of allowance for loan losses	$	160,137	$	167,180

The following table shows the changes in accretable yield for PCI loans for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	58,981		$	73,849
Accretion	(4,229		)	(6,319		)
Disposals	94			(1,093		)
Reclassifications from nonaccretable difference	1,761			2,289
Balance at end of period	$	56,607		$	68,726

15

5. Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit

Loans, excluding PCI loans

We maintain an allowance for loan and lease losses (“ALLL”) to absorb losses inherent in the loan portfolio. The size of the ALLL is determined through quarterly assessments of the probable estimated losses in the loan portfolio. Our methodology for making such assessments and determining the adequacy of the ALLL includes the following key elements:

1. General valuation allowance consistent with the Contingencies topic of the FASB ASC.

2. Classified loss reserves on specific relationships. Specific allowances for identified problem loans are determined in accordance with the Receivables topic of the FASB ASC.

3. The unallocated allowance provides for other factors inherent in our loan portfolio that may not have been contemplated in the general and specific components of the allowance. This unallocated amount generally comprises less than 5% of the allowance. The unallocated amount is reviewed quarterly based on trends in credit losses, the results of credit reviews and overall economic trends.

The general valuation allowance is calculated quarterly using quantitative and qualitative information about specific loan classes. The minimum required level with respect to which an entity develops a methodology to determine its ALLL is by general categories of loans, such as commercial business, real estate, and consumer. However, the Company’s methodology in determining its ALLL is prepared in a more detailed manner at the loan class level, utilizing specific categories such as commercial business secured, commercial business unsecured, real estate commercial land, and real estate income property multifamily. The quantitative information uses historical losses from a specific loan class and incorporates the loan’s risk rating migration from origination to the point of loss based upon the consideration of an appropriate look back period.

A loan’s risk rating is primarily determined based upon the borrower’s ability to fulfill its debt obligation from a cash flow perspective. In the event there is financial deterioration of the borrower, the borrower’s other sources of income or repayment are also considered, including recent appraisal values for collateral dependent loans. The qualitative information takes into account general economic and business conditions affecting our marketplace, seasoning of the loan portfolio, duration of the business cycle, etc. to ensure our methodologies reflect the current economic environment and other factors as using historical loss information exclusively may not give an accurate estimate of inherent losses within the Company’s loan portfolio.

When a loan is deemed to be impaired, the Company has to determine if a specific valuation allowance is required for that loan. The specific valuation allowance is a reserve, calculated at the individual loan level, for each loan determined to be both impaired and containing a value less than its recorded investment. The Company measures the impairment based on the discounted expected future cash flows, observable market price, or the fair value of the collateral less selling costs if the loan is collateral dependent or if foreclosure is probable. The specific reserve for each loan is equal to the difference between the recorded investment in the loan and its determined impairment value.

The ALLL is increased by provisions for loan and lease losses (“provision”) charged to expense, and is reduced by loans charged off, net of recoveries or a recovery of previous provisions. While the Company’s management believes the best information available is used to determine the ALLL, changes in market conditions could result in adjustments to the ALLL, affecting net income, if circumstances differ from the assumptions used in determining the ALLL.

We have used the same methodology for ALLL calculations during the three months ended March 31, 2016 and 2015. Adjustments to the percentages of the ALLL allocated to loan categories are made based on trends with respect to delinquencies and problem loans within each class of loans. The Company reviews the ALLL quantitative and qualitative methodology on a quarterly basis and makes adjustments when appropriate. The Company continues to make revisions to its ALLL as necessary to maintain adequate reserves. The Company carefully monitors the loan portfolio and continues to emphasize the importance of credit quality.

Once it is determined that all or a portion of a loan balance is uncollectable, and the amount can be reasonably estimated, the uncollectable portion of the loan is charged-off.

16

PCI Loans

Purchased credit impaired loans that have common risk characteristics are aggregated into loan pools. When required, we record impairment, at the pool-level, to adjust the pool’s carrying value to its net present value of expected future cash flows. Quarterly, we re-measure expected loan pool cash flows. If, due to credit deterioration, the present value of expected cash flows is less than carrying value, we reduce the loan pool’s carrying value by adjusting the ALLL with an impairment charge to earnings which is recorded as provision for loan losses. If credit quality improves and the present value of expected cash flows exceeds carrying value, we increase the loan pool’s carrying value by recapturing previously recorded ALLL, if any. See Note 4, Loans, for further discussion of the accounting for PCI loans.

Credit losses attributable to draws on purchased credit impaired loans, advanced subsequent to the loan purchase date, are accounted for under ASC 450-20 and those amounts are also subject to the Company’s internal and external credit review. An ALLL is estimated in a similar manner as loans, excluding PCI loans, and a provision for loan losses is charged to earnings as necessary.

The following tables show a detailed analysis of the ALLL for the three months ended March 31, 2016 and 2015:

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2016	(in thousands)
Commercial business:
Secured	$	32,321	$	(3,770	)	$	611	$	2,952		$	32,114	$	2,500	$	29,614
Unsecured	1,299		(3		)	51		(47		)	1,300		—		1,300
Real estate:
One-to-four family residential	916		—			41		(303		)	654		—		654
Commercial & multifamily residential:
Commercial land	1,178		—			—		84			1,262		—		1,262
Income property	6,616		—			61		725			7,402		—		7,402
Owner occupied	5,550		—			8		528			6,086		—		6,086
Real estate construction:
One-to-four family residential:
Land and acquisition	339		—			51		250			640		—		640
Residential construction	733		—			203		513			1,449		—		1,449
Commercial & multifamily residential:
Income property	388		—			1		326			715		—		715
Owner occupied	1,006		—			—		204			1,210		—		1,210
Consumer	3,531		(266		)	165		(62		)	3,368		15		3,353
Purchased credit impaired	13,726		(2,866		)	1,551		653			13,064		—		13,064
Unallocated	569		—			—		(569		)	—		—		—
Total	$	68,172	$	(6,905	)	$	2,743	$	5,254		$	69,264	$	2,515	$	66,749

17

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2015	(in thousands)
Commercial business:
Secured	$	25,923	$	(1,386	)	$	512	$	712		$	25,761	$	24	$	25,737
Unsecured	927		(40		)	106		19			1,012		—		1,012
Real estate:
One-to-four family residential	2,281		(8		)	12		(921		)	1,364		115		1,249
Commercial & multifamily residential:
Commercial land	799		—			—		28			827		—		827
Income property	9,159		—			3,252		(3,971		)	8,440		—		8,440
Owner occupied	5,007		—			9		596			5,612		24		5,588
Real estate construction:
One-to-four family residential:
Land and acquisition	1,197		—			2		(173		)	1,026		67		959
Residential construction	1,860		—			26		(96		)	1,790		—		1,790
Commercial & multifamily residential:
Income property	622		—			3		202			827		—		827
Owner occupied	434		—			—		65			499		—		499
Consumer	3,180		(891		)	273		273			2,835		—		2,835
Purchased credit impaired	16,336		(4,100		)	1,686		2,609			16,531		—		16,531
Unallocated	1,844		—			—		1,866			3,710		—		3,710
Total	$	69,569	$	(6,425	)	$	5,881	$	1,209		$	70,234	$	230	$	70,004

18

Changes in the allowance for unfunded commitments and letters of credit, a component of other liabilities in the consolidated balance sheet, are summarized as follows:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Balance at beginning of period	$	2,930	$	2,655
Net changes in the allowance for unfunded commitments and letters of credit	—		—
Balance at end of period	$	2,930	$	2,655

Risk Elements

The extension of credit in the form of loans or other credit products to individuals and businesses is one of our principal business activities. Our policies and applicable laws and regulations require risk analysis as well as ongoing portfolio and credit management. We manage our credit risk through lending limit constraints, credit review, approval policies and extensive, ongoing internal monitoring. We also manage credit risk through diversification of the loan portfolio by type of loan, type of industry and type of borrower and by limiting the aggregation of debt to a single borrower.

Risk ratings are reviewed and updated whenever appropriate, with more periodic reviews as the risk and dollar value of loss on the loan increases. In the event full collection of principal and interest is not reasonably assured, the loan is appropriately downgraded and, if warranted, placed on nonaccrual status even though the loan may be current as to principal and interest payments. Additionally, we assess whether an impairment of a loan warrants specific reserves or a write-down of the loan.

Pass rated loans are generally considered to have sufficient sources of repayment in order to repay the loan in full in accordance with all terms and conditions. Special Mention rated loans have potential weaknesses that, if left uncorrected, may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Loans with a risk rating of Substandard or worse are reported as classified loans in our ALLL analysis. We review these loans to assess the ability of our borrowers to service all interest and principal obligations and, as a result, the risk rating may be adjusted accordingly. Loans risk rated as Substandard reflect loans where a loss is possible if loan weaknesses are not corrected. Doubtful rated loans have a high probability of loss, however, the amount of loss has not yet been determined. Loss rated loans are considered uncollectable and when identified, are charged off.

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The following is an analysis of the credit quality of our loan portfolio, excluding PCI loans, as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,185,283	$	54,957	$	63,792	$	—	$	—	$	2,304,032
Unsecured	91,737		277		562		—		—		92,576
Real estate:
One-to-four family residential	170,788		461		1,075		—		—		172,324
Commercial and multifamily residential:
Commercial land	213,936		4,804		423		—		—		219,163
Income property	1,306,718		6,394		11,351		—		—		1,324,463
Owner occupied	933,090		7,978		15,126		—		—		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		205		—		—		13,120
Residential construction	118,843		—		845		—		—		119,688
Commercial and multifamily residential:
Income property	86,584		—		—		—		—		86,584
Owner occupied	90,807		—		3,936		—		—		94,743
Consumer	313,249		—		7,946		—		—		321,195
Total	$	5,523,950	$	74,871	$	105,261	$	—	$	—	5,704,082
Less:
Allowance for loan and lease losses											56,200
Loans, excluding PCI loans, net											$	5,647,882

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,146,729	$	59,746	$	56,217	$	—	$	—	$	2,262,692
Unsecured	93,347		278		1,323		—		—		94,948
Real estate:
One-to-four family residential	171,945		52		1,439		—		—		173,436
Commercial and multifamily residential:
Commercial land	207,768		4,966		424		—		—		213,158
Income property	1,296,043		5,889		8,847		—		—		1,310,779
Owner occupied	918,986		9,668		17,662		—		—		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		362		—		—		14,750
Residential construction	119,243		—		1,132		—		—		120,375
Commercial and multifamily residential:
Income property	83,634		—		—		—		—		83,634
Owner occupied	81,270		—		401		—		—		81,671
Consumer	328,286		—		4,076		—		—		332,362
Total	$	5,461,639	$	80,599	$	91,883	$	—	$	—	5,634,121
Less:
Allowance for loan and lease losses											54,446
Loans, excluding PCI loans, net											$	5,579,675

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The following is an analysis of the credit quality of our PCI loan portfolio as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,706	$	99	$	5,297	$	—	$	—	$	37,102
Unsecured	1,106		—		1		—		—		1,107
Real estate:
One-to-four family residential	23,766		—		2,000		—		—		25,766
Commercial and multifamily residential:
Commercial land	8,037		—		623		—		—		8,660
Income property	33,558		—		3,970		—		—		37,528
Owner occupied	52,487		—		1,709		—		—		54,196
Real estate construction:
One-to-four family residential:
Land and acquisition	1,143		—		315		—		—		1,458
Residential construction	414		—		328		—		—		742
Commercial and multifamily residential:
Income property	1,283		—		—		—		—		1,283
Owner occupied	526		—		—		—		—		526
Consumer	19,531		—		695		—		—		20,226
Total	$	173,557	$	99	$	14,938	$	—	$	—	188,594
Less:
Valuation discount resulting from acquisition accounting											15,393
Allowance for loan losses											13,064
PCI loans, net											$	160,137

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,468	$	101	$	5,995	$	—	$	—	$	37,564
Unsecured	1,218		—		2		—		—		1,220
Real estate:
One-to-four family residential	25,018		—		2,177		—		—		27,195
Commercial and multifamily residential:
Commercial land	8,234		—		664		—		—		8,898
Income property	36,426		—		5,916		—		—		42,342
Owner occupied	53,071		261		1,736		—		—		55,068
Real estate construction:
One-to-four family residential:
Land and acquisition	1,086		—		479		—		—		1,565
Residential construction	427		—		334		—		—		761
Commercial and multifamily residential:
Income property	1,303		—		—		—		—		1,303
Owner occupied	531		—		—		—		—		531
Consumer	20,122		—		781		—		—		20,903
Total	$	178,904	$	362	$	18,084	$	—	$	—	197,350
Less:
Valuation discount resulting from acquisition accounting											16,444
Allowance for loan losses											13,726
PCI loans, net											$	167,180

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6. Other Real Estate Owned (“OREO”)

The following tables set forth activity in OREO for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance, beginning of period	$	13,738		$	22,190
Transfers in	105			4,692
Valuation adjustments	(137		)	(197		)
Proceeds from sale of OREO property	(1,326		)	(5,122		)
Gain on sale of OREO, net	47			1,736
Balance, end of period	$	12,427		$	23,299

At March 31, 2016, the carrying amount of foreclosed residential real estate properties held as a result of obtaining physical possession was $2.2 million and the recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process was $1.3 million.

7. FDIC Loss-sharing Asset and Covered Assets

We are a party to eight loss-sharing agreements with the FDIC relating to four FDIC-assisted acquisitions. Such agreements cover a substantial portion of losses incurred on acquired covered loans and OREO. The loss-sharing agreements relate to the acquisitions of (1) Columbia River Bank in January 2010, (2) American Marine Bank in January 2010, (3) Summit Bank in May 2011, and (4) First Heritage Bank in May 2011. Under the terms of the loss-sharing agreements, the FDIC will absorb 80% of losses and share in 80% of loss recoveries up to specified amounts. With respect to loss-sharing agreements for two acquisitions completed in 2010, after those specified amounts, the FDIC will absorb 95% of losses and share in 95% of loss recoveries. The loss-sharing provisions of the agreements for non-single family and single family mortgage loans are in effect for five and ten years, respectively and the loss recovery provisions are in effect for eight and ten years, respectively. The loss-sharing provisions for the Columbia River Bank and American Marine Bank non-single family covered assets were effective through the end of the first quarter of 2015. In addition, the loss-sharing provisions for the Summit Bank and First Heritage Bank non-single family covered assets will be expiring at the end of the second quarter of 2016. Accordingly, further activity will be limited to recoveries through the first quarter of 2018 and second quarter of 2019, respectively, for assets covered by these loss-sharing agreements.

Ten years and forty-five days after the applicable acquisition dates, the Bank must pay to the FDIC a clawback in the event the losses from the acquisitions fail to reach stated levels. The amount of the clawback is determined by a formula specified in each individual loss-sharing agreement. As of March 31, 2016, the net present value of the Bank’s estimated clawback liability was $5.4 million, which was included in other liabilities on the consolidated balance sheets.

At March 31, 2016, the FDIC loss-sharing asset was comprised of a $4.6 million FDIC indemnification asset and a $1.4 million FDIC receivable. The indemnification asset represents the net present value of cash flows the Company expects to collect from the FDIC under the loss-sharing agreements and the FDIC receivable represents amounts from the FDIC for which the Company has requested reimbursement but has not yet received reimbursement.

For PCI loans, the Company remeasures contractual and expected cash flows on a quarterly basis. When the quarterly remeasurement process results in a decrease in expected cash flows due to an increase in expected credit losses, impairment is recorded. As a result of this impairment, for loans covered by loss-sharing agreements with respect to which the loss-sharing provisions are still effective, the indemnification asset is increased to reflect anticipated future cash to be received from the FDIC. Consistent with the loss-sharing agreements between the Company and the FDIC, the amount of the increase to the indemnification asset is measured as 80% of the resulting impairment.

Alternatively, when the quarterly remeasurement results in an increase in expected future cash flows due to a decrease in expected credit losses, the nonaccretable difference decreases and the effective yield of the related loan portfolio is increased. As a result of the improved expected cash flows, for loans covered by loss-sharing agreements with respect to which the loss-sharing provisions are still effective, the indemnification asset would be reduced first by the amount of any impairment previously recorded and, second, by increased amortization over the remaining life of the related loss-sharing agreement.

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The following table shows a detailed analysis of the FDIC loss-sharing asset for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	6,568		$	15,174
Adjustments not reflected in income:
Cash (received from) paid to the FDIC, net	353			(659		)
FDIC reimbursable recoveries, net	136			(21		)
Adjustments reflected in income:
Amortization, net	(1,332		)	(2,294		)
Loan impairment	147			1,532
Sale of other real estate	144			(420		)
Write-downs of other real estate	18			1,071
Other	(80		)	261
Balance at end of period	$	5,954		$	14,644

The following table presents information about the composition of the FDIC loss-sharing asset, the clawback liability, and the non-single family and the single family covered assets as of the date indicated:

	March 31, 2016
	Columbia River Bank		American Marine Bank		Summit Bank		First Heritage Bank		Total
	(in thousands)
FDIC loss-sharing asset	$	537	$	2,404	$	1,799	$	1,214	$	5,954
Clawback liability	$	3,420	$	1,264	$	—	$	734	$	5,418
Non-single family covered assets	$	66,682	$	11,321	$	8,381	$	14,779	$	101,163
Single family covered assets	$	7,764	$	22,561	$	6,046	$	1,735	$	38,106
Loss-sharing expiration dates:
Non-single family	First Quarter 2015		First Quarter 2015		Second Quarter 2016		Second Quarter 2016
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021
Loss recovery expiration dates:
Non-single family	First Quarter 2018		First Quarter 2018		Second Quarter 2019		Second Quarter 2019
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021

8. Goodwill and Other Intangible Assets

In accordance with the Intangibles – Goodwill and Other topic of the FASB ASC, goodwill is not amortized but is reviewed for potential impairment at the reporting unit level. Management analyzes its goodwill for impairment on an annual basis on July 31 and between annual tests in certain circumstances such as material adverse changes in legal, business, regulatory and economic factors. An impairment loss is recorded to the extent that the carrying amount of goodwill exceeds its implied fair value.

The core deposit intangible (“CDI”) is evaluated for impairment if events and circumstances indicate a possible impairment. The CDI is amortized on an accelerated basis over an estimated life of 10 years.

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The following table sets forth activity for goodwill and other intangible assets for the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Goodwill
Total goodwill	$	382,762		$	382,537
Other intangible assets, net
Core deposit intangible:
Gross core deposit intangible balance at beginning of period	58,598			58,598
Accumulated amortization at beginning of period	(35,940		)	(29,058		)
Core deposit intangible, net at beginning of period	22,658			29,540
CDI current period amortization	(1,583		)	(1,817		)
Total core deposit intangible, net at end of period	21,075			27,723
Intangible assets not subject to amortization	919			919
Other intangible assets, net at end of period	21,994			28,642
Total goodwill and other intangible assets at end of period	$	404,756		$	411,179

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2016 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2016	$	4,363
2017	4,913
2018	3,855
2019	2,951
2020	2,048

9. Derivatives and Balance Sheet Offsetting

The Company periodically enters into certain commercial loan interest rate swap agreements in order to provide commercial loan customers the ability to convert from variable to fixed interest rates. Under these agreements, the Company enters into a variable-rate loan agreement with a customer in addition to a swap agreement. This swap agreement effectively converts the customer’s variable rate loan into a fixed rate. The Company then enters into a corresponding swap agreement with a third-party in order to offset its exposure on the variable and fixed components of the customer agreement. As the interest rate swap agreements with the customers and third parties are not designated as hedges under the Derivatives and Hedging topic of the FASB ASC, the instruments are marked to market in earnings. The notional amount of open interest rate swap agreements at March 31, 2016 and December 31, 2015 was $267.5 million and $264.4 million, respectively. During the three months ended March 31, 2016 and 2015, mark-to-market losses of $8 thousand and $5 thousand, respectively were recorded to other noninterest expense.

The following table presents the fair value of derivatives not designated as hedging instruments at March 31, 2016 and December 31, 2015:

Asset Derivatives

Liability Derivatives

March 31, 2016

December 31, 2015

March 31, 2016

December 31, 2015

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

(in thousands)

Interest rate contracts

Other assets

$

18,641

Other assets

$

12,438

Other liabilities

$

18,689

Other liabilities

$

12,478

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The Company is party to interest rate contracts and repurchase agreements that are subject to enforceable master netting arrangements or similar agreements. Under these agreements, the Company may have the right to net settle multiple contracts with the same counterparty. The following tables show the gross interest rate swap agreements and repurchase agreements in the consolidated balance sheets and the respective collateral received or pledged in the form of other financial instruments, which are generally marketable securities. The collateral amounts in these tables are limited to the outstanding balances of the related asset or liability. Therefore, instances of overcollateralization are not shown.

	Gross Amounts of Recognized Assets/Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets/Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset in the Consolidated Balance Sheets
							Collateral Posted			Net Amount
March 31, 2016	(in thousands)
Assets
Interest rate contracts	$	18,641	$	—	$	18,641	$	—		$	18,641
Liabilities
Interest rate contracts	$	18,689	$	—	$	18,689	$	(18,689	)	$	—
Repurchase agreements	$	73,839	$	—	$	73,839	$	(73,839	)	$	—
December 31, 2015
Assets
Interest rate contracts	$	12,438	$	—	$	12,438	$	—		$	12,438
Liabilities
Interest rate contracts	$	12,478	$	—	$	12,478	$	(12,478	)	$	—
Repurchase agreements	$	99,699	$	—	$	99,699	$	(99,699	)	$	—

The following table presents the class of collateral pledged for repurchase agreements as well as the remaining contractual maturity of the repurchase agreements:

	Remaining contractual maturity of the agreements
	Overnight and continuous		Up to 30 days		30 - 90 days		Greater than 90 days		Total
March 31, 2016	(in thousands)
Class of collateral pledged for repurchase agreements
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	48,839	$	—	$	—	$	25,000	$	73,839
Gross amount of recognized liabilities for repurchase agreements									73,839
Amounts related to agreements not included in offsetting disclosure									$	—

The collateral utilized for the Company’s repurchase agreements is subject to market fluctuations as well as prepayments of principal. The Company monitors the risk of the fair value of its pledged collateral falling below acceptable amounts based on the type of the underlying repurchase agreement. The pledged collateral related to the Company’s term wholesale repurchase agreement, which matures in 2018, is monitored on a monthly basis and additional capital is pledged when necessary. The pledged collateral related to the Company’s sweep repurchase agreements, which mature on an overnight basis, is monitored on a daily basis as the underlying sweep accounts can have frequent transaction activity and the amount of pledged collateral is adjusted as necessary.

10. Commitments and Contingent Liabilities

Lease Commitments: The Company leases locations as well as equipment under various non-cancellable operating leases that expire between 2016 and 2043. The majority of the leases contain renewal options and provisions for increases in rental rates based on an agreed upon index or predetermined escalation schedule.

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Financial Instruments with Off-Balance Sheet Risk: In the normal course of business, the Company makes loan commitments (typically unfunded loans and unused lines of credit) and issues standby letters of credit to accommodate the financial needs of its customers. At March 31, 2016 and December 31, 2015, the Company’s loan commitments amounted to $1.96 billion and $1.93 billion, respectively.

Standby letters of credit commit the Company to make payments on behalf of customers under specified conditions. Historically, no significant losses have been incurred by the Company under standby letters of credit. Both arrangements have credit risk essentially the same as that involved in extending loans to customers and are subject to the Company’s normal credit policies, including collateral requirements, where appropriate. Standby letters of credit were $46.9 million and $38.7 million at March 31, 2016 and December 31, 2015, respectively. In addition, commitments under commercial letters of credit used to facilitate customers’ trade transactions and other off-balance sheet liabilities amounted to $5.6 million and $5.0 million at March 31, 2016 and December 31, 2015, respectively.

Legal Proceedings: The Company and its subsidiaries are from time to time defendants in and are threatened with various legal proceedings arising from their regular business activities. Management, after consulting with legal counsel, is of the opinion that the ultimate liability, if any, resulting from these pending or threatened actions and proceedings will not have a material effect on the financial statements of the Company.

11. Shareholders’ Equity

Preferred Stock. In conjunction with the 2013 acquisition of West Coast Bancorp, the Company issued 8,782 shares of mandatorily convertible cumulative participating preferred stock, Series B (“Series B Preferred Stock”). The Series B Preferred Stock is not subject to the operation of a sinking fund. The Series B Preferred Stock is not redeemable by the Company and is perpetual with no maturity. The holders of Series B Preferred Stock have no general voting rights. If the Company declares and pays a dividend to its common shareholders, it must declare and pay to its holders of Series B Preferred Stock, on the same date, a dividend in an amount per share of the Series B Preferred Stock that is intended to provide such holders dividends in the amount they would have received if shares of Series B Preferred Stock had been converted into common stock as of that date. The outstanding shares of Series B Preferred Stock are convertible into 102,363 shares of Company common stock.

Dividends. On January 28, 2016, the Company declared a quarterly cash dividend of $0.18 per common share and common share equivalent for holders of preferred stock, and a special cash dividend of $0.20 per common share and common share equivalent for holders of preferred stock, both payable on February 24, 2016 to shareholders of record at the close of business on February 10, 2016.

Subsequent to quarter end, on April 27, 2016, the Company declared a regular quarterly cash dividend of $0.19 per common share and common share equivalent for holders of preferred stock, and a special cash dividend of $0.18 per common share and common share equivalent for holders of preferred stock, both payable on May 25, 2016 to shareholders of record at the close of business on May 11, 2016.

The payment of cash dividends is subject to federal regulatory requirements for capital levels and other restrictions. In addition, the cash dividends paid by Columbia Bank to the Company are subject to both federal and state regulatory requirements.

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12. Accumulated Other Comprehensive Income (Loss)

The following table shows changes in accumulated other comprehensive income (loss) by component for the three month periods ended March 31, 2016 and 2015:

	Unrealized Gains and Losses on Available-for-Sale Securities (1)			Unrealized Gains and Losses on Pension Plan Liability (1)			Total (1)
Three months ended March 31, 2016	(in thousands)
Beginning balance	$	386		$	(6,681	)	$	(6,295	)
Other comprehensive income before reclassifications	18,770			—			18,770
Amounts reclassified from accumulated other comprehensive income (loss)	(238		)	106			(132		)
Net current-period other comprehensive income	18,532			106			18,638
Ending balance	$	18,918		$	(6,575	)	$	12,343
Three months ended March 31, 2015
Beginning balance	$	7,462		$	(1,841	)	$	5,621
Other comprehensive income (loss) before reclassifications	9,376			(280		)	9,096
Amounts reclassified from accumulated other comprehensive income (loss)	(459		)	28			(431		)
Net current-period other comprehensive income (loss)	8,917			(252		)	8,665
Ending balance	$	16,379		$	(2,093	)	$	14,286

__________

(1) All amounts are net of tax. Amounts in parenthesis indicate debits.

The following table shows details regarding the reclassifications from accumulated other comprehensive income (loss) for the three month periods ended March 31, 2016 and 2015:

	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
	Three Months Ended March 31,						Affected line Item in the Consolidated
	2016			2015			Statement of Income
	(in thousands)
Unrealized gains and losses on available-for-sale securities
Investment securities gains	$	373		$	721		Investment securities gains, net
	373			721			Total before tax
	(135		)	(262		)	Income tax provision
	$	238		$	459		Net of tax
Amortization of pension plan liability
Actuarial losses	$	(167	)	$	(44	)	Compensation and employee benefits
	(167		)	(44		)	Total before tax
	61			16			Income tax benefit
	$	(106	)	$	(28	)	Net of tax

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13. Fair Value Accounting and Measurement

The Fair Value Measurements and Disclosures topic of the FASB ASC defines fair value, establishes a consistent framework for measuring fair value and expands disclosure requirements about fair value. We hold fixed and variable rate interest-bearing securities, investments in marketable equity securities and certain other financial instruments, which are carried at fair value. Fair value is determined based upon quoted prices when available or through the use of alternative approaches, such as matrix or model pricing, when market quotes are not readily accessible or available.

The valuation techniques are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our own market assumptions. These two types of inputs create the following fair value hierarchy:

Level 1 – Quoted prices for identical instruments in active markets that are accessible at the measurement date.

Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable.

Fair values are determined as follows:

Securities at fair value are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors. These fair value calculations are considered a Level 2 input method under the provisions of the Fair Value Measurements and Disclosures topic of the FASB ASC for all securities other than U.S. Treasury Notes, which are considered a Level 1 input method.

Interest rate contract positions are valued in models, which use as their basis, readily observable market parameters and are classified within Level 2 of the valuation hierarchy.

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The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis at March 31, 2016 and December 31, 2015 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
March 31, 2016	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,330,100	$	—	$	1,330,100	$	—
State and municipal debt securities	491,387		—		491,387		—
U.S. government agency and government-sponsored enterprise securities	358,941		—		358,941		—
U.S. government securities	547		547		—		—
Other securities	5,191		—		5,191		—
Total securities available for sale	$	2,186,166	$	547	$	2,185,619	$	—
Other assets (Interest rate contracts)	$	18,641	$	—	$	18,641	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	18,689	$	—	$	18,689	$	—

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
December 31, 2015	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,286,489	$	—	$	1,286,489	$	—
State and municipal debt securities	492,169		—		492,169		—
U.S. government agency and government-sponsored enterprise securities	353,782		—		353,782		—
U.S. government securities	20,137		20,137		—		—
Other securities	5,117		—		5,117		—
Total securities available for sale	$	2,157,694	$	20,137	$	2,137,557	$	—
Other assets (Interest rate contracts)	$	12,438	$	—	$	12,438	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	12,478	$	—	$	12,478	$	—

There were no transfers between Level 1 and Level 2 of the valuation hierarchy during the three month periods ended March 31, 2016 and 2015. The Company recognizes transfers between levels of the valuation hierarchy based on the valuation level at the end of the reporting period.

29

Nonrecurring Measurements

Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment and OREO. The following methods were used to estimate the fair value of each such class of financial instrument:

Impaired loans—A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, a loan’s observable market price, or the fair market value of the collateral less estimated costs to sell if the loan is a collateral-dependent loan. Generally, the Company utilizes the fair market value of the collateral to measure impairment. The impairment evaluations are performed in conjunction with the ALLL process on a quarterly basis by officers in the Special Credits group, which reports to the Chief Credit Officer. The Real Estate Appraisal Services Department (“REASD”), which also reports to the Chief Credit Officer, is responsible for obtaining appraisals from third-parties or performing internal evaluations. If an appraisal is obtained from a third-party, the REASD reviews the appraisal to evaluate the adequacy of the appraisal report, including its scope, methods, accuracy, and reasonableness.

Other real estate owned—OREO is real property that the Bank has taken ownership of in partial or full satisfaction of a loan or loans. OREO is generally measured based on the property’s fair market value as indicated by an appraisal or a letter of intent to purchase. OREO is initially recorded at the fair value less estimated costs to sell. This amount becomes the property’s new basis. Any fair value adjustments based on the property’s fair value less estimated costs to sell at the date of acquisition are charged to the ALLL, or in the event of a write-up without previous losses charged to the ALLL, a credit to earnings is recorded. Management periodically reviews OREO in an effort to ensure the property is recorded at its fair value, net of estimated costs to sell. Any fair value adjustments subsequent to acquisition are charged or credited to earnings. The initial and subsequent evaluations are performed by officers in the Special Credits group, which reports to the Chief Credit Officer. The REASD obtains appraisals from third-parties for OREO and performs internal evaluations. If an appraisal is obtained from a third-party, the REASD reviews the appraisal to evaluate the adequacy of the appraisal report, including its scope, methods, accuracy, and reasonableness.

The following tables set forth information related to the Company’s assets that were measured using fair value estimates on a nonrecurring basis during the current and prior year quarterly periods:

	Fair value at March 31, 2016		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2016
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	10,681	$	—	$	—	$	10,681	$	2,676
OREO	2,553		—		—		2,553		137
	$	13,234	$	—	$	—	$	13,234	$	2,813

	Fair value at March 31, 2015		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2015
			Level 1		Level 2		Level 3
	(in thousands)
OREO	$	1,429	$	—	$	—	$	1,429	$	197
	$	1,429	$	—	$	—	$	1,429	$	197

The losses on impaired loans disclosed above represent the amount of the specific reserve and/or charge-offs during the period applicable to loans held at period end. The amount of the specific reserve is included in the allowance for loan and lease losses. The losses on OREO disclosed above represent the write-downs taken at foreclosure that were charged to the allowance for loan and lease losses, as well as subsequent changes in any valuation allowances from updated appraisals that were recorded to earnings.

30

Quantitative information about Level 3 fair value measurements

The range and weighted-average of the significant unobservable inputs used to fair value our Level 3 nonrecurring assets, along with the valuation techniques used, are shown in the following table:

	Fair value at March 31, 2016		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	10,681	Fair Market Value of Collateral	Adjustment to Stated Value	0% - 7% (6%)
OREO	2,553		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for impaired loans and OREO because there were no adjustments made to the appraisal values or stated values during the current period.

	Fair value at March 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
OREO	$	1,429	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for OREO because there were no adjustments made to the appraisal value during the current period.

31

Fair value of financial instruments

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

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value:

Cash and due from banks and interest-earning deposits with banks—The fair value of financial instruments that are short-term or reprice frequently and that have little or no risk are considered to have a fair value that approximates carrying value (Level 1).

Securities available for sale—Securities at fair value, other than U.S. Treasury Notes, are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors (Level 2). U.S. Treasury Notes are priced using quotes in active markets (Level 1).

Federal Home Loan Bank stock—The fair value is based upon the par value of the stock which equates to its carrying value (Level 2).

Loans held for sale—The carrying amount of loans held for sale approximates their fair values due to the short period of time between the origination and sale dates (Level 2).

Loans—Loans are not recorded at fair value on a recurring basis. Nonrecurring fair value adjustments are periodically recorded on impaired loans that are measured for impairment based on the fair value of collateral. For most performing loans, fair value is estimated using expected duration and lending rates that would have been offered on March 31, 2016 or December 31, 2015, for loans which mirror the attributes of the loans with similar rate structures and average maturities. The fair values resulting from these calculations are reduced by an amount representing the change in estimated fair value attributable to changes in borrowers’ credit quality since the loans were originated. For nonperforming loans, fair value is estimated by applying a valuation discount based upon loan sales data from the FDIC. For PCI loans, fair value is estimated by discounting the expected future cash flows using a lending rate that would have been offered on March 31, 2016 (Level 3).

FDIC loss-sharing asset —The fair value of the FDIC loss-sharing asset is estimated based on discounting the expected future cash flows using an estimated market rate (Level 3).

Interest rate contracts—Interest rate swap positions are valued in models, which use readily observable market parameters as their basis (Level 2).

Deposits—For deposits with no contractual maturity, the fair value is equal to the carrying value (Level 1). The fair value of fixed maturity deposits is based on discounted cash flows using the difference between the deposit rate and current market rates for deposits of similar remaining maturities (Level 2).

FHLB advances—The fair value of FHLB advances is estimated based on discounting the future cash flows using the market rate currently offered (Level 2).

Repurchase Agreements—The fair value of term repurchase agreements is estimated based on discounting the future cash flows using the market rate currently offered. The carrying amount of sweep repurchase agreements approximates their fair values due to the short period of time between repricing dates (Level 2).

Other Financial Instruments—The majority of our commitments to extend credit and standby letters of credit carry current market interest rates if converted to loans, as such, carrying value is assumed to equal fair value.

32

The following tables summarize carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value at March 31, 2016 and December 31, 2015:

	March 31, 2016
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	150,683	$	150,683	$	150,683	$	—	$	—
Interest-earning deposits with banks	38,248		38,248		38,248		—		—
Securities available for sale	2,186,166		2,186,166		547		2,185,619		—
FHLB stock	10,241		10,241		—		10,241		—
Loans held for sale	3,681		3,681		—		3,681		—
Loans	5,808,019		5,889,840		—		—		5,889,840
FDIC loss-sharing asset	5,954		1,613		—		—		1,613
Interest rate contracts	18,641		18,641		—		18,641		—
Liabilities
Deposits	$	7,596,949	$	7,593,830	$	7,162,893	$	430,937	$	—
FHLB Advances	6,521		7,459		—		7,459		—
Repurchase agreements	73,839		74,353		—		74,353		—
Interest rate contracts	18,689		18,689		—		18,689		—

	December 31, 2015
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	166,929	$	166,929	$	166,929	$	—	$	—
Interest-earning deposits with banks	8,373		8,373		8,373		—		—
Securities available for sale	2,157,694		2,157,694		20,137		2,137,557		—
FHLB stock	12,722		12,722		—		12,722		—
Loans held for sale	4,509		4,509		—		4,509		—
Loans	5,746,855		5,752,423		—		—		5,752,423
FDIC loss-sharing asset	6,568		921		—		—		921
Interest rate contracts	12,438		12,438		—		12,438		—
Liabilities
Deposits	$	7,438,829	$	7,434,787	$	6,979,924	$	454,863	$	—
FHLB Advances	68,531		69,176		—		69,176		—
Repurchase agreements	99,699		100,346		—		100,346		—
Interest rate contracts	12,478		12,478		—		12,478		—

14. Earnings per Common Share

The Company applies the two-class method of computing basic and diluted EPS. Under the two-class method, EPS is determined for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. The Company issues restricted shares under share-based compensation plans and preferred shares which qualify as participating securities.

33

The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2016 and 2015:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands except per share)
Basic EPS:
Net income	$	21,259	$	24,361
Less: Earnings allocated to participating securities:
Preferred shares	39		43
Nonvested restricted shares	247		225
Earnings allocated to common shareholders	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Basic earnings per common share	$	0.37	$	0.42
Diluted EPS:
Earnings allocated to common shareholders (1)	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Dilutive effect of equity awards	11		13
Weighted average diluted common shares outstanding	57,125		56,978
Diluted earnings per common share	$	0.37	$	0.42
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	27		53

__________

(1) Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options and warrants to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.

34

Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This discussion should be read in conjunction with the unaudited consolidated financial statements of Columbia Banking System, Inc. (referred to in this report as “we”, “our”, “Columbia” and “the Company”) and notes thereto presented elsewhere in this report and with the December 31, 2015 audited consolidated financial statements and its accompanying notes included in our Annual Report on Form 10-K. In the following discussion, unless otherwise noted, references to increases or decreases in average balances in items of income and expense for a particular period and balances at a particular date refer to the comparison with corresponding amounts for the period or date one year earlier.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This quarterly report on Form 10-Q may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include, but are not limited to, statements about our plans, objectives, expectations and intentions that are not historical facts, and statements identified by words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “should,” “projects,” “seeks,” “estimates” or the negative version of those words or other comparable words or phrases of a future or forward-looking nature. Forward-looking statements are based on current beliefs and expectations of management and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control. In addition, forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change. In addition to the factors set forth in the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this report and the factors set forth in the section titled “Risk Factors” in the Company’s Form 10-K, the following factors, among others, could cause actual results to differ materially from the anticipated results expressed or implied by forward-looking statements:

• national and global economic conditions could be less favorable than expected or could have a more direct and pronounced effect on us than expected and adversely affect our ability to continue internal growth and maintain the quality of our earning assets;

• the local housing/real estate markets where we operate and make loans could face challenges;

• the risks presented by the economy, which could adversely affect credit quality, collateral values, including real estate collateral, investment values, liquidity and loan originations and loan portfolio delinquency rates;

• the efficiencies and enhanced financial and operating performance we expect to realize from investments in personnel, acquisitions and infrastructure may not be realized;

• the ability to complete future acquisitions and to successfully integrate acquired entities;

• interest rate changes could significantly reduce net interest income and negatively affect funding sources;

• projected business increases following strategic expansion or opening of new branches could be lower than expected;

• changes in the scope and cost of Federal Deposit Insurance Corporation (“FDIC”) insurance and other coverages;

• the impact of acquired loans on our earnings;

• changes in accounting principles, policies, and guidelines applicable to bank holding companies and banking;

• changes in laws and regulations affecting our businesses, including changes in the enforcement and interpretation of such laws and regulations by applicable governmental and regulatory agencies;

• competition among financial institutions and nontraditional providers of financial services could increase significantly;

• continued consolidation in the Pacific Northwest financial services industry resulting in the creation of larger financial institutions that may have greater resources could change the competitive landscape;

• the goodwill we have recorded in connection with acquisitions could become impaired, which may have an adverse impact on our earnings and capital;

• the reputation of the financial services industry could deteriorate, which could adversely affect our ability to access markets for funding and to acquire and retain customers;

• our ability to identify and address cyber-security risks, including security breaches, “denial of service attacks,” “hacking” and identity theft;

• any material failure or interruption of our information and communications systems or inability to keep pace with technological changes;

• our ability to effectively manage credit risk, interest rate risk, market risk, operational risk, legal risk, liquidity risk and regulatory and compliance risk;

• the effect of geopolitical instability, including wars, conflicts and terrorist attacks;

• our profitability measures could be adversely affected if we are unable to effectively manage our capital;

• natural disasters, including earthquakes, tsunamis, flooding, fires and other unexpected events; and

• the effects of any damage to our reputation resulting from developments related to any of the items identified above.

35

You should take into account that forward-looking statements speak only as of the date of this report. Given the described uncertainties and risks, we cannot guarantee our future performance or results of operations and you should not place undue reliance on forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required under federal securities laws.

CRITICAL ACCOUNTING POLICIES

Management has identified the accounting policies related to the ALLL, business combinations, PCI loans, FDIC loss-sharing asset and the valuation and recoverability of goodwill as critical to an understanding of our financial statements. These policies and related estimates are discussed in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the headings “Allowance for Loan and Lease Losses”, “Business Combinations”, “Purchased Credit Impaired Loans”, “FDIC Loss-sharing Asset” and “Valuation and Recoverability of Goodwill” in our 2015 Annual Report on Form 10-K. There have not been any material changes in our critical accounting policies as compared to those disclosed in our 2015 Annual Report on Form 10-K.

RESULTS OF OPERATIONS

Our results of operations are dependent to a large degree on our net interest income. We also generate noninterest income through service charges and fees, merchant services fees, and bank owned life insurance. Our operating expenses consist primarily of compensation and employee benefits, occupancy, merchant card processing, data processing and legal and professional fees. Like most financial institutions, our interest income and cost of funds are affected significantly by general economic conditions, particularly changes in market interest rates, and by government policies and actions of regulatory authorities.

Earnings Summary

The Company reported net income for the first quarter of $21.3 million or $0.37 per diluted common share, compared to $24.4 million or $0.42 per diluted common share for the first quarter of 2015. The decrease in net income for the current quarter compared to the prior year period was due to a combination of higher provision for loan and lease losses and lower noninterest income recorded during the current quarter, partially offset by lower noninterest expense.

Revenue (net interest income plus noninterest income) for the three months ended March 31, 2016 was $100.8 million, 2% lower than the same period in 2015. The decrease in revenue was a result of slightly lower net interest income and lower noninterest income due to an increase in the expense recorded for the change in the FDIC loss-sharing asset. For a more complete discussion of these topics, please refer to the net interest income and noninterest income sections contained in the ensuing pages.

The provision for loan and lease losses for the first quarter of 2016 was $5.3 million compared to a provision of $1.2 million during the first quarter of 2015. The provision recorded in the first quarter of 2016 was due to the recording of a $4.6 million provision on loans, excluding PCI loans and a $653 thousand provision related to PCI loans. For a more complete discussion of this topic, please refer to the provision for loan and lease losses section contained in the ensuing pages.

Total noninterest expense for the quarter ended March 31, 2016 was $65.1 million, down from $66.7 million for the first quarter of 2015. The decrease from the prior year period was primarily due to reductions in both compensation and benefits and acquisition-related expenses, partially offset by higher costs associated with other real estate owned. For a more complete discussion of this topic, please refer to the noninterest expense section contained in the ensuing pages.

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Net Interest Income

The following tables set forth the average balances of all major categories of interest-earning assets and interest-bearing liabilities, the total dollar amounts of interest income on interest-earning assets and interest expense on interest-bearing liabilities, the average yield earned on interest-earning assets and average cost of interest-bearing liabilities by category and, in total, net interest income and net interest margin:

	Three Months Ended March 31,						Three Months Ended March 31,
	2016						2015
	Average Balances		Interest Earned / Paid		Average Rate		Average Balances		Interest Earned / Paid		Average Rate
	(dollars in thousands)
ASSETS
Loans, net (1)(2)	$	5,827,440	$	71,298	4.89	%	$	5,414,942	$	71,487	5.28	%
Taxable securities	1,689,289		8,017		1.90	%	1,609,323		7,526		1.87	%
Tax exempt securities (2)	458,168		4,312		3.76	%	459,483		4,680		4.07	%
Interest-earning deposits with banks	31,048		38		0.49	%	45,292		27		0.24	%
Total interest-earning assets	8,005,945		$	83,665	4.18	%	7,529,040		$	83,720	4.45	%
Other earning assets	154,336						146,055
Noninterest-earning assets	788,931						830,681
Total assets	$	8,949,212					$	8,505,776
LIABILITIES AND SHAREHOLDERS’ EQUITY
Certificates of deposit	$	448,915	$	144	0.13	%	$	502,287	$	240	0.19	%
Savings accounts	675,876		17		0.01	%	625,132		19		0.01	%
Interest-bearing demand	927,948		169		0.07	%	1,214,149		138		0.05	%
Money market accounts	1,930,575		412		0.09	%	1,815,923		351		0.08	%
Total interest-bearing deposits	3,983,314		742		0.07	%	4,157,491		748		0.07	%
Federal Home Loan Bank advances	50,569		124		0.98	%	129,841		159		0.49	%
Other borrowings	90,699		138		0.61	%	108,170		146		0.54	%
Total interest-bearing liabilities	4,124,582		$	1,004	0.10	%	4,395,502		$	1,053	0.10	%
Noninterest-bearing deposits	3,462,379						2,770,265
Other noninterest-bearing liabilities	103,840						99,156
Shareholders’ equity	1,258,411						1,240,853
Total liabilities & shareholders’ equity	$	8,949,212					$	8,505,776
Net interest income (tax equivalent)			$	82,661					$	82,667
Net interest margin (tax equivalent)					4.13	%					4.39	%

__________

(1) Nonaccrual loans have been included in the tables as loans carrying a zero yield. Amortized net deferred loan fees and unearned net discounts on acquired loans were included in the interest income calculations. The amortization of net deferred loan fees was $1.1 million for both three month periods ended March 31, 2016 and 2015. The incremental accretion income on acquired loans was $4.7 million and $7.5 million for the three months ended March 31, 2016 and 2015, respectively.

(2) Tax-exempt income is calculated on a tax equivalent basis. The tax equivalent yield adjustment to interest earned on loans was $982 thousand and $665 thousand for the three months ended March 31, 2016 and 2015, respectively. The tax equivalent yield adjustment to interest earned on tax exempt securities was $1.5 million and $1.6 million for the three months ended March 31, 2016 and 2015, respectively.

37

The following table sets forth the total dollar amount of change in interest income and interest expense. The changes have been segregated for each major category of interest-earning assets and interest-bearing liabilities into amounts attributable to changes in volume and changes in rates. Changes attributable to the combined effect of volume and interest rates have been allocated proportionately to the changes due to volume and the changes due to interest rates:

	Three Months Ended March 31, 2016 Compared to 2015 Increase (Decrease) Due to
	Volume			Rate			Total
	(in thousands)
Interest Income
Loans, net	$	5,243		$	(5,432	)	$	(189	)
Taxable securities	378			113			491
Tax exempt securities	(13		)	(355		)	(368		)
Interest earning deposits with banks	(11		)	22			11
Interest income	$	5,597		$	(5,652	)	$	(55	)
Interest Expense
Deposits:
Certificates of deposit	$	(23	)	$	(73	)	$	(96	)
Savings accounts	1			(3		)	(2		)
Interest-bearing demand	(38		)	69			31
Money market accounts	23			38			61
Total interest on deposits	(37		)	31			(6		)
Federal Home Loan Bank advances	(134		)	99			(35		)
Other borrowings	(37		)	29			(8		)
Interest expense	$	(208	)	$	159		$	(49	)

Net interest income for the first quarter of 2016 was $80.2 million, down slightly from $80.4 million for the same quarter in 2015. The decrease was due to incremental accretion income of $4.7 million recorded in the current period compared to $7.5 million in the prior year period. As shown in the table below, incremental accretion income continued to decline which was reflective of the decrease in volume of acquired loans. The decrease in revenue from incremental accretion was substantially offset, however, by higher volumes of interest-earning assets. Average interest-earning assets were up $476.9 million from the prior year period as net deposit inflows were used to fund loan growth and purchase investment securities.

The Company’s net interest margin (tax equivalent) decreased to 4.13% in the first quarter of 2016, from 4.39% for the same quarter last year. This decrease was due to lower incremental accretion income on acquired loans as discussed above. The Company’s operating net interest margin (tax equivalent) ⁽¹⁾ decreased to 4.03% from 4.18% due to lower rates on loans and securities.

The following table shows the impact to interest income of incremental accretion income as well as the net interest margin and operating net interest margin for the periods presented:

	Three Months Ended March 31,
	2016			2015
	(dollars in thousands)
Incremental accretion income due to:
FDIC purchased credit impaired loans	$	1,657		$	2,447
Other FDIC acquired loans (2)	—			117
Other acquired loans	3,073			4,934
Incremental accretion income	$	4,730		$	7,498
Net interest margin (tax equivalent)	4.13		%	4.39		%
Operating net interest margin(tax equivalent) (1)	4.03		%	4.18		%

__________

(1) Operating net interest margin (tax equivalent) is a non-GAAP measurement. See Non-GAAP measures section of Item 2, Management’s Discussion and Analysis.

(2) For 2016, incremental accretion income on other FDIC acquired loans is no longer considered significant.

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Provision for Loan and Lease Losses

During the first quarter of 2016, the Company recorded a $5.3 million provision expense compared with a provision expense of $1.2 million during the first quarter of 2015. The $5.3 million net provision for loan and lease losses recorded during the current quarter was driven by loans, excluding PCI loans, which was $4.6 million. Net provision expense for PCI loans was $653 thousand. The $4.6 million provision for loans, excluding PCI loans, was due to net charge-off activity during the current quarter of $4.2 million and organic loan growth. The provision recorded relating to PCI loans was due to the decrease in the present value of expected future cash flows as remeasured during the current quarter, compared to the present value of expected future cash flows measured during the fourth quarter of 2015. The amount of provision was calculated in accordance with the Company’s methodology for determining the ALLL, discussed in Note 5 to the Consolidated Financial Statements in “Item 1. Financial Statements (unaudited)” of this report.

Noninterest Income

The following table presents the significant components of noninterest income and the related dollar and percentage change from period to period:

	Three Months Ended March 31,
	2016			2015 (1)		$ Change			% Change
	(dollars in thousands)
Deposit account and treasury management fees (1)	$	6,989		$	6,860	$	129		2	%
Card revenue (1)	5,652			5,363		289			5	%
Financial services and trust revenue (1)	2,821			3,124		(303		)	(10	)%
Loan revenue (1)	2,262			2,603		(341		)	(13	)%
Merchant processing revenue	2,102			2,040		62			3	%
Bank owned life insurance	1,116			1,078		38			4	%
Other (1)	434			828		(394		)	(48	)%
Subtotal	21,376			21,896		(520		)	(2	)%
Investment securities gains, net	373			721		(348		)	(48	)%
Change in FDIC loss-sharing asset	(1,103		)	150		(1,253		)	(835	)%
Total noninterest income	$	20,646		$	22,767	$	(2,121	)	(9	)%

__________

(1) Reclassified to conform to the current period’s presentation. Reclassifications consisted of disaggregating income previously presented as ‘Service charges and other fees’ and certain income previously presented in ‘Other’ into the presentation above. There was no change to total noninterest income as previously reported as a result of these reclassifications.

Noninterest income was $20.6 million for the first quarter of 2016, compared to $22.8 million for the same period in 2015. The decrease was primarily due to higher expense recorded for the change in FDIC loss-sharing asset, which was $1.3 million more in the current quarter. Also contributing to the decrease was lower other noninterest income in the current quarter due to a $402 thousand decrease in gains on disposal of loans.

The change in FDIC loss-sharing asset has been a significant component of noninterest income. Changes in the asset are primarily driven by amortization of the asset, the provision recorded for reimbursable losses on covered loans and write-downs of covered other real estate owned (“OREO”). For the first quarter of 2016, the change in the asset was primarily driven by $1.3 million of amortization of the asset. For additional information on the FDIC loss-sharing asset, please see the “FDIC Loss-sharing Asset” section of this Management’s Discussion and Analysis and Note 7 to the Consolidated Financial Statements in “Item 1. Financial Statements (unaudited)” of this report.

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Noninterest Expense

The following table presents the significant components of noninterest expense and the related dollar and percentage change from period to period:

	Three Months Ended March 31,
	2016		2015			$ Change			% Change
	(dollars in thousands)
Compensation and employee benefits	$	36,319	$	39,100		$	(2,781	)	(7	)%
All other noninterest expense:
Occupancy	10,173		7,993			2,180			27	%
Merchant processing expense	1,033		977			56			6	%
Advertising and promotion	842		931			(89		)	(10	)%
Data processing	4,146		4,984			(838		)	(17	)%
Legal and professional services	1,325		2,507			(1,182		)	(47	)%
Taxes, license and fees	1,290		1,232			58			5	%
Regulatory premiums	1,141		1,221			(80		)	(7	)%
Net cost (benefit) of operation of other real estate owned	104		(1,246		)	1,350			(108	)%
Amortization of intangibles	1,583		1,817			(234		)	(13	)%
Other	7,118		7,218			(100		)	(1	)%
Total all other noninterest expense	28,755		27,634			1,121			4	%
Total noninterest expense	$	65,074	$	66,734		$	(1,660	)	(2	)%

The following table shows the impact of the acquisition-related expenses for the periods indicated to the various components of noninterest expense:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Acquisition-related expenses:
Compensation and employee benefits	$	35	$	338
Occupancy	2,383		499
Advertising and promotion	—		96
Data processing	18		1,558
Legal and professional fees	—		392
Other	—		91
Total impact of acquisition-related costs to noninterest expense (1)	$	2,436	$	2,974

__________

(1) All acquisition-related expenses recorded during the three months ended March 31, 2016 and substantially all of the acquisition-related expenses recorded during the three months ended March 31, 2015 were related to the 2014 acquisition of Intermountain Community Bancorp (“Intermountain”).

Total noninterest expense for the first quarter of 2016 was $65.1 million, a decrease of $1.7 million, or 2% from a year earlier. The decrease from the prior year period was due to lower compensation and employee benefits and was partially offset by higher net OREO expenses in the current quarter. Net OREO expenses were a net cost of $104 thousand in the current quarter but were a net benefit of $1.2 million in the first quarter of 2015. Also contributing to the decrease was lower acquisition-related expense, which was $2.4 million during the current quarter compared to $3.0 million for the prior year period. The current quarter acquisition-related expenses were predominantly related to occupancy due to branch consolidation activity.

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The following table presents selected items included in Other noninterest expense and the associated change from period to period:

	Three Months Ended March 31,					Increase (Decrease) Amount
	2016			2015 (1)
	(in thousands)
Postage	$	585		$	808	$	(223	)
Software support and maintenance	1,034			1,037		(3		)
Supplies	455			317		138
Loan expenses (1)	307			463		(156		)
Dues and subscriptions (1)	357			275		82
Insurance	475			396		79
Card expenses (1)	667			815		(148		)
Travel and entertainment (1)	687			775		(88		)
Employee expenses	290			279		11
Sponsorships and charitable contributions	619			432		187
Directors fees	192			239		(47		)
Correspondent bank processing fees	132			147		(15		)
Investor relations	40			61		(21		)
Other personal property owned	(2		)	4		(6		)
FDIC clawback expense	209			23		186
Fraud losses (1)	66			150		(84		)
Miscellaneous (1)	1,005			997		8
Total other noninterest expense	$	7,118		$	7,218	$	(100	)

__________

(1) Reclassified to conform to the current period’s presentation. The reclassification was limited to creating new lines within other noninterest expense. There were no changes to previously reported total other noninterest expense as a result of these reclassifications.

Other noninterest expense decreased $100 thousand due to lower postage and lower acquisition-related expenses during the current quarter. These decreases were partially offset by higher FDIC clawback expense recorded in the current quarter.

FDIC Acquired Loan Accounting

Two of our non-single family FDIC loss-sharing agreements expired in 2015 and the remaining two such agreements expire in the second quarter of this year. In addition, the volume of our loan portfolios acquired from the FDIC continues to diminish over time. As a result, the significance to our result of operations from FDIC acquired loan accounting has also diminished. The following table illustrates the impact to earnings associated with the Company’s FDIC acquired loan portfolios for the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Incremental accretion income on FDIC purchased credit impaired loans	$	1,657		$	2,447
Incremental accretion income on other FDIC acquired loans (1)	—			117
Provision for losses on purchased credit impaired loans	(653		)	(2,609		)
Change in FDIC loss-sharing asset (2)	(1,103		)	150
FDIC clawback liability expense	(209		)	(23		)
Pre-tax earnings impact of FDIC acquired loan portfolios	$	(308	)	$	82

__________

(1) For 2016, incremental accretion income on other FDIC acquired loans is no longer considered significant.

(2) For additional information on the FDIC loss-sharing asset, please see the “FDIC Loss-sharing Asset” section of this Management’s Discussion and Analysis and Note 7 to the Consolidated Financial Statements in “Item 1. Financial Statements (unaudited)” of this report.

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Income Taxes

We recorded an income tax provision of $9.2 million for the first quarter of 2016, compared to a provision of $10.8 million for the same period in 2015, with an effective tax rate of 30% and 31%, respectively. Our effective tax rate remains lower than the statutory tax rate due to the amount of tax-exempt municipal securities held in the investment portfolio, tax-exempt earnings on bank owned life insurance and loans with favorable tax attributes. For additional information, please refer to the Company’s annual report on Form 10-K for the year ended December 31, 2015.

FINANCIAL CONDITION

Total assets were $9.04 billion as of March 31, 2016, an increase of $84.2 million from $8.95 billion at December 31, 2015 as deposit account net inflows during the period were used to fund loan growth and purchase investment securities. Loan growth of $62.3 million during the quarter was driven by strong loan originations of $254 million. Loan production was diversified across the loan portfolio segments but centered in our commercial business segment. Securities, including FHLB stock, were $2.20 billion at March 31, 2016, an increase of $26.0 million from December 31, 2015. Total liabilities were $7.78 billion as of March 31, 2016, an increase of $65.6 million from $7.71 billion at December 31, 2015. The increase was primarily due to an increase in deposits, partially offset by decreases in Federal Home Loan Bank advances and securities sold under agreements to repurchase.

Investment Securities

At March 31, 2016, the Company held investment securities totaling $2.19 billion compared to $2.16 billion at December 31, 2015. All of our securities are classified as available for sale and carried at fair value. The increase in the investment securities portfolio from year-end is due to $95.7 million in purchases and a $29.1 million increase in the net unrealized gain of securities in the portfolio, partially offset by $90.9 million in principal payments, maturities and sales and $5.4 million in premium amortization. The average duration of our investment portfolio was approximately 3 years and 8 months at March 31, 2016. This duration takes into account calls, where appropriate, and consensus prepayment speeds.

The investment securities are used by the Company as a component of its balance sheet management strategies. From time-to-time, securities may be sold to reposition the portfolio in response to strategies developed by the Company’s asset liability committee. In accordance with our investment strategy, management monitors market conditions with a view to realize gains on its available for sale securities portfolio when prudent.

The Company performs a quarterly assessment of the debt and equity securities in its investment portfolio that have an unrealized loss to determine whether the decline in the fair value of these securities below their amortized cost basis is other-than-temporary. Impairment is considered other-than-temporary when it becomes probable that the Company will be unable to recover the entire amortized cost basis of its investment. The Company’s impairment assessment takes into consideration factors such as the length of time and the extent to which the market value has been less than cost, defaults or deferrals of scheduled interest or principal, external credit ratings and recent downgrades, internal assessment of credit quality, and whether the Company intends to sell the security and whether it is more likely than not it will be required to sell the security prior to recovery of its amortized cost basis. If a decline in fair value is judged to be other-than-temporary, the cost basis of the individual security is written down to fair value which then becomes the new cost basis. The new cost basis is not adjusted for subsequent recoveries in fair value.

When there are credit losses associated with an impaired debt security and the Company does not have the intent to sell the security and it is more likely than not that it will not have to sell the security before recovery of its cost basis, the Company will separate the amount of the impairment into the amount that is credit-related and the amount related to non-credit factors. The credit-related impairment is recognized in earnings and the non-credit-related impairment is recognized in accumulated other comprehensive income.

At March 31, 2016, the market value of securities available for sale had a net unrealized gain of $29.2 million compared to a net unrealized gain of $84 thousand at December 31, 2015. The change in valuation was the result of fluctuations in market interest rates subsequent to purchase. At March 31, 2016, the Company had $338.4 million of investment securities with gross unrealized losses of $4.4 million; however, we did not consider these investment securities to be other-than-temporarily impaired.

42

The following table sets forth our securities portfolio by type for the dates indicated:

	March 31, 2016		December 31, 2015
	(in thousands)
Securities Available for Sale
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,330,099	$	1,286,489
State and municipal securities	491,388		492,169
U.S. government and government-sponsored enterprise securities	358,941		353,782
U.S. government securities	547		20,137
Other securities	5,191		5,117
Total	$	2,186,166	$	2,157,694

For further information on our investment portfolio, see Note 3 of the Consolidated Financial Statements in “Item 1. Financial Statements (unaudited)” of this report.

Credit Risk Management

The extension of credit in the form of loans or other credit substitutes to individuals and businesses is one of our principal commerce activities. Our policies, applicable laws, and regulations require risk analysis as well as ongoing portfolio and credit management. We manage our credit risk through lending limit constraints, credit review, approval policies, and extensive, ongoing internal monitoring. We also manage credit risk through diversification of the loan portfolio by type of loan, type of industry and type of borrower and by limiting the aggregation of debt to a single borrower.

In analyzing our existing portfolio, we review our consumer and residential loan portfolios by their performance as a pool of loans, since no single loan is individually significant or judged by its risk rating, size or potential risk of loss. In contrast, the monitoring process for the commercial business, real estate construction, and commercial real estate portfolios includes periodic reviews of individual loans with risk ratings assigned to each loan and performance judged on a loan-by-loan basis.

We review these loans to assess the ability of our borrowers to service all interest and principal obligations and, as a result, the risk rating may be adjusted accordingly. In the event that full collection of principal and interest is not reasonably assured, the loan is appropriately downgraded and, if warranted, placed on nonaccrual status even though the loan may be current as to principal and interest payments. Additionally, we assess whether an impairment of a loan warrants specific reserves or a write-down of the loan. For additional discussion on our methodology in managing credit risk within our loan portfolio, see the following: “Allowance for Loan and Lease Losses” section in this Management’s Discussion and Analysis and Note 1 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” of the Company’s 2015 Annual Report on Form 10-K.

Loan policies, credit quality criteria, portfolio guidelines and other controls are established under the guidance of our Chief Credit Officer and approved, as appropriate, by the board of directors. Credit Administration, together with the management loan committee, has the responsibility for administering the credit approval process. As another part of its control process, we use an internal credit review and examination function to provide reasonable assurance that loans and commitments are made and maintained as prescribed by our credit policies. This includes a review of documentation when the loan is initially extended and subsequent examination to ensure continued performance and proper risk assessment.

43

Loan Portfolio Analysis

Our wholly owned banking subsidiary Columbia State Bank (“Columbia Bank” or the “Bank”) is a full service commercial bank, which originates a wide variety of loans, and focuses its lending efforts on originating commercial business and commercial real estate loans.

The following table sets forth the Company’s loan portfolio by type of loan for the dates indicated:

	March 31, 2016			% of Total		December 31, 2015			% of Total
	(dollars in thousands)
Commercial business	$	2,401,193		40.9	%	$	2,362,575		40.6	%
Real estate:
One-to-four family residential	175,050			3.0	%	176,295			3.0	%
Commercial and multifamily residential	2,520,352			42.9	%	2,491,736			42.9	%
Total real estate	2,695,402			45.9	%	2,668,031			45.9	%
Real estate construction:
One-to-four family residential	133,447			2.3	%	135,874			2.3	%
Commercial and multifamily residential	183,548			3.1	%	167,413			2.9	%
Total real estate construction	316,995			5.4	%	303,287			5.2	%
Consumer	329,902			5.6	%	342,601			5.9	%
Purchased credit impaired	173,201			2.9	%	180,906			3.1	%
Subtotal	5,916,693			100.7	%	5,857,400			100.7	%
Less: Net unearned income	(39,410		)	(0.7	)%	(42,373		)	(0.7	)%
Loans, net of unearned income (before Allowance for Loan and Lease Losses)	$	5,877,283		100.0	%	$	5,815,027		100.0	%
Loans held for sale	$	3,681				$	4,509

Total loans increased $62.3 million from year-end 2015. The loan growth was driven by $254million of new loan production during the quarter, partially offset by contractual payments and prepayments. The loan portfolio continues to be diversified, with the intent to mitigate risk by minimizing concentration in any one segment. The $39.4 million in unearned income recorded at March 31, 2016 was comprised of $29.0 million in discount on acquired loans and $10.4 million in deferred loan fees. The $42.4 million in unearned income recorded at December 31, 2015 consisted of $32.2 million in discount on acquired loans and $10.2 million in deferred loan fees.

The following table provides additional detail related to the net discount of acquired and purchased loans, excluding PCI loans, by acquisition:

	March 31, 2016			December 31, 2015
Acquisition:	(dollars in thousands)
Intermountain	$	7,778		$	8,237
West Coast	21,743			24,367
Other	(479		)	(432		)
Total net discount at period end	$	29,042		$	32,172

Commercial Loans: We are committed to providing competitive commercial lending in our primary market areas. Management expects a continued focus within its commercial lending products and to emphasize, in particular, relationship banking with businesses and business owners.

Real Estate Loans: One-to-four family residential loans are secured by properties located within our primary market areas and, typically, have loan-to-value ratios of 80% or lower at origination. Our underwriting standards for commercial and multifamily residential loans generally require that the loan-to-value ratio for these loans not exceed 75% of appraised value, cost, or discounted cash flow value, as appropriate, and that commercial properties maintain debt coverage ratios (net operating income divided by annual debt servicing) of 1.2 or better. However, underwriting standards can be influenced by competition and other factors. We endeavor to maintain the highest practical underwriting standards while balancing the need to remain competitive in our lending practices.

44

Real Estate Construction Loans: We originate a variety of real estate construction loans. Underwriting guidelines for these loans vary by loan type but include loan-to-value limits, term limits and loan advance limits, as applicable. Our underwriting guidelines for commercial and multifamily residential real estate construction loans generally require that the loan-to-value ratio not exceed 75% and stabilized debt coverage ratios (net operating income divided by annual debt servicing) of 1.2 or better. As noted above, underwriting standards can be influenced by competition and other factors. However, we endeavor to maintain the highest practical underwriting standards while balancing the need to remain competitive in our lending practices.

Consumer Loans: Consumer loans include automobile loans, boat and recreational vehicle financing, home equity and home improvement loans and miscellaneous personal loans.

Foreign Loans: The Company has no material foreign activities. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington, Oregon and Idaho.

Purchased Credit Impaired Loans: PCI loans are comprised of loans and loan commitments acquired in connection with the 2011 FDIC-assisted acquisitions of First Heritage Bank and Summit Bank, as well as the 2010 FDIC-assisted acquisitions of Columbia River Bank and American Marine Bank. PCI loans are generally accounted for under ASC Topic 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality (“ASC 310-30”).

For additional information on our loan portfolio, including amounts pledged as collateral on borrowings, see Note 4 to the Consolidated Financial Statements in “Item 1. Financial Statements (unaudited)” of this report.

Nonperforming Assets

Nonperforming assets consist of: (i) nonaccrual loans, which generally are loans placed on a nonaccrual basis when the loan becomes past due 90 days or when there are otherwise serious doubts about the collectability of principal or interest within the existing terms of the loan, (ii) OREO; and (iii) other personal property owned, if applicable.

Nonaccrual loans: The Consolidated Financial Statements are prepared according to the accrual basis of accounting. This includes the recognition of interest income on the loan portfolio, unless a loan is placed on nonaccrual status, which occurs when there are serious doubts about the collectability of principal or interest. Our policy is generally to discontinue the accrual of interest on all loans past due 90 days or more and place them on nonaccrual status. Loans accounted for under ASC 310-30 are generally considered accruing and performing as the loans accrete interest income over the estimated lives of the loans when cash flows are reasonably estimable. Accordingly, PCI loans accounted for under ASC 310-30 that are contractually past due are still considered to be accruing and performing loans.

45

The following table sets forth, at the dates indicated, information with respect to our nonaccrual loans and total nonperforming assets:

	March 31, 2016			December 31, 2015
	(in thousands)
Nonperforming assets
Nonaccrual loans:
Commercial business	$	22,559		$	9,437
Real estate:
One-to-four family residential	730			820
Commercial and multifamily residential	8,117			9,513
Total real estate	8,847			10,333
Real estate construction:
One-to-four family residential	768			928
Total real estate construction	768			928
Consumer	4,717			766
Total nonaccrual loans	36,891			21,464
Other real estate owned and other personal property owned	12,427			13,738
Total nonperforming assets	$	49,318		$	35,202
Loans, net of unearned income	$	5,877,283		$	5,815,027
Total assets	$	9,035,932		$	8,951,697
Nonperforming loans to period end loans	0.63		%	0.37		%
Nonperforming assets to period end assets	0.55		%	0.39		%

At March 31, 2016, nonperforming assets were $49.3 million, compared to $35.2 million at December 31, 2015. Nonperforming assets increased $14.1 million during the three months ended March 31, 2016 as a result of a $15.4 increase in nonaccrual loans. The increase in nonaccrual loans was partially offset by a $1.3 million decline in OREO, primarily due to OREO sales.

Other Real Estate Owned: During the three months ended March 31, 2016, OREO decreased $1.3 million. The following table sets forth activity in OREO for the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance, beginning of period	$	13,738		$	22,190
Transfers in	105			4,692
Valuation adjustments	(137		)	(197		)
Proceeds from sale of OREO property	(1,326		)	(5,122		)
Gain on sale of OREO, net	47			1,736
Balance, end of period	$	12,427		$	23,299

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Allowance for Loan and Lease Losses

Loans, excluding Purchased Credit Impaired Loans

We maintain an ALLL to absorb losses inherent in the loan portfolio. The size of the ALLL is determined through quarterly assessments of the probable estimated losses in the loan portfolio. Our methodology for making such assessments and determining the adequacy of the ALLL includes the following key elements:

1. General valuation allowance consistent with the Contingencies topic of the FASB ASC.

2. Classified loss reserves on specific relationships. Specific allowances for identified problem loans are determined in accordance with the Receivables topic of the FASB ASC.

3. The unallocated allowance provides for other factors inherent in our loan portfolio that may not have been contemplated in the general and specific components of the allowance. This unallocated amount generally comprises less than 5% of the allowance. The unallocated amount is reviewed quarterly based on trends in credit losses, the results of credit reviews and overall economic trends.

On a quarterly basis, our Chief Credit Officer reviews with executive management and the board of directors the various additional factors that management considers when determining the adequacy of the ALLL. Factors which influence management’s judgment include the following:

• Existing general economic and business conditions affecting our market place

• Credit quality trends

• Historical loss experience

• Seasoning of the loan portfolio

• Bank regulatory examination results

• Findings of internal credit examiners

• Duration of current business cycle

• Specific loss estimates for problem loans

The ALLL is increased by provisions for loan and lease losses (“provision”) charged to expense, and is reduced by loans charged off, net of recoveries or recapture of previous provision. While we believe the best information available is used by us to determine the ALLL, changes in market conditions could result in adjustments to the ALLL, affecting net income, if circumstances differ from the assumptions used in determining the ALLL.

In addition to the ALLL, we maintain an allowance for unfunded commitments and letters of credit. We report this allowance as a liability on our Consolidated Balance Sheet. We determine this amount using estimates of the probability of the ultimate funding and losses related to those credit exposures. This methodology is similar to the methodology we use for determining the adequacy of our ALLL. For additional information on our allowance for unfunded commitments and letters of credit, see Note 5 to the Consolidated Financial Statements presented elsewhere in this report.

Purchased Credit Impaired Loans

PCI loans are accounted for under ASC 310-30 and initially measured at fair value based on expected future cash flows over the life of the loans. PCI loans that have common risk characteristics are aggregated into pools. The Company re-measures contractual and expected loan cash flows, at the pool-level, on a quarterly basis. If, due to credit deterioration, the present value of expected cash flows, as periodically re-measured, is less than the carrying value of the loan pool, the Company adjusts the carrying value of the loan pool to the lower amount by adjusting the ALLL with a charge to earnings through the provision for loan losses. If the present value of expected cash flows is greater than the carrying value of the loan pool, the Company adjusts the carrying value of the loan pool to a higher amount by recapturing previously recorded allowance for loan losses, if any.

At March 31, 2016, our ALLL was $69.3 million, or 1.18% of total loans (excluding loans held for sale). This compares with an ALLL of $68.2 million, or 1.17% of total loans (excluding loans held for sale) at December 31, 2015 and an ALLL of $70.2 million or 1.29% of total loans (excluding loans held for sale) at March 31, 2015.

47

The following table provides an analysis of the Company’s ALLL for loans at the dates and the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Beginning balance	$	68,172		$	69,569
Charge-offs:
Commercial business	(3,773		)	(1,426		)
One-to-four family residential	—			(8		)
Consumer	(266		)	(891		)
Purchased credit impaired	(2,866		)	(4,100		)
Total charge-offs	(6,905		)	(6,425		)
Recoveries:
Commercial business	662			618
One-to-four family residential	41			12
Commercial and multifamily residential	69			3,261
One-to-four family residential construction	254			28
Commercial and multifamily residential construction	1			3
Consumer	165			273
Purchased credit impaired	1,551			1,686
Total recoveries	2,743			5,881
Net charge-offs	(4,162		)	(544		)
Provision for loan and lease losses	5,254			1,209
Ending balance	$	69,264		$	70,234
Total loans, net at end of period, excluding loans held of sale	$	5,877,283		$	5,450,895
Allowance for loan and lease losses to period-end loans	1.18		%	1.29		%
Allowance for unfunded commitments and letters of credit
Beginning balance	$	2,930		$	2,655
Net changes in the allowance for unfunded commitments and letters of credit	—			—
Ending balance	$	2,930		$	2,655

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FDIC Loss-sharing Asset

The Company has elected to account for amounts receivable under loss-sharing agreements with the FDIC as an indemnification asset in accordance with the Business Combinations topic of the FASB ASC. The FDIC indemnification asset is initially recorded at fair value, based on the discounted expected future cash flows under the loss-sharing agreements.

Subsequent to initial recognition, the FDIC indemnification asset is reviewed quarterly and adjusted for any changes in expected cash flows. These adjustments are measured on the same basis as the related covered loans. Any decrease in expected cash flows on the covered loans due to an increase in expected credit losses will increase the FDIC indemnification asset and any increase in expected future cash flows on the covered loans due to a decrease in expected credit losses will decrease the FDIC indemnification asset. Changes in the estimated cash flows on covered assets that are immediately recognized in income generally result in a similar immediate adjustment to the loss-sharing asset while changes in expected cash flows on covered assets that are accounted for as an adjustment to yield generally result in adjustments to the amortization or accretion rate for the loss-sharing asset. Increases and decreases to the FDIC loss-sharing asset are recorded as adjustments to noninterest income.

At March 31, 2016, the FDIC loss-sharing asset was $6.0 million, which was comprised of a $4.6 million FDIC indemnification asset and a $1.4 million FDIC receivable. The FDIC receivable represents the amounts due from the FDIC for claims related to covered losses the Company has incurred net of amounts due to the FDIC relating to shared recoveries.

The following table summarizes the activity related to the FDIC loss-sharing asset for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	6,568		$	15,174
Adjustments not reflected in income:
Cash (received from) paid to the FDIC, net	353			(659		)
FDIC reimbursable recoveries, net	136			(21		)
Adjustments reflected in income:
Amortization, net	(1,332		)	(2,294		)
Loan impairment	147			1,532
Sale of other real estate	144			(420		)
Write-downs of other real estate	18			1,071
Other	(80		)	261
Balance at end of period	$	5,954		$	14,644

For additional information on the FDIC loss-sharing asset, please see Note 7 to the Consolidated Financial Statements presented elsewhere in this report.

Liquidity and Sources of Funds

Our primary sources of funds are customer deposits. Additionally, we utilize advances from the FHLB of Des Moines (“FHLB”), the Federal Reserve Bank of San Francisco (“FRB”), and wholesale and retail repurchase agreements to supplement our funding needs. These funds, together with loan repayments, loan sales, retained earnings, equity and other borrowed funds are used to make loans, to acquire securities and other assets, and to fund continuing operations.

In addition, we have a shelf registration statement on file with the Securities and Exchange Commission registering an unlimited amount of any combination of debt or equity securities, depositary shares, purchase contracts, units and warrants in one or more offerings. Specific information regarding the terms of and the securities being offered will be provided at the time of any offering. Proceeds from any future offerings are expected to be used for general corporate purposes, including, but not limited to, the repayment of debt, repurchasing or redeeming outstanding securities, working capital, funding future acquisitions or other purposes identified at the time of any offering.

49

Deposit Activities

Our deposit products include a wide variety of transaction accounts, savings accounts and time deposit accounts. Core deposits (demand deposit, savings, money market accounts and certificates of deposit less than $250,000) increased $145.9 million since year-end 2015.

We have established a branch system to serve our consumer and business depositors. In addition, management’s strategy for funding asset growth is to make use of brokered and other wholesale deposits on an as-needed basis. The Company participates in the Certificate of Deposit Account Registry Service (CDARS^®) program. CDARS^® is a network that allows participating banks to offer extended FDIC deposit insurance coverage on time deposits. The Company also participates in a similar program to offer extended FDIC deposit insurance coverage on money market accounts. These extended deposit insurance programs are generally available only to existing customers and are not used as a means of generating additional liquidity. At March 31, 2016, CDARS^® deposits and brokered money market deposits were $141.6 million, or 2% of total deposits, compared to $127.8 million at year-end 2015. The brokered deposits have varied maturities.

The following table sets forth the Company’s deposit base by type of product for the dates indicated:

	March 31, 2016				December 31, 2015 (1)
	Balance		% of Total		Balance		% of Total
	(dollars in thousands)
Core deposits:
Demand and other noninterest-bearing	$	3,553,468	46.8	%	$	3,507,358	47.2	%
Interest-bearing demand	958,469		12.6	%	925,909		12.4	%
Money market	1,838,364		24.2	%	1,788,552		24.0	%
Savings	695,588		9.2	%	657,016		8.8	%
Certificates of deposit, less than $250,000 (1)	338,733		4.5	%	359,878		4.8	%
Total core deposits	7,384,622		97.3	%	7,238,713		97.2	%
Certificates of deposit, $250,000 or more (1)	70,571		0.9	%	72,126		1.0	%
Certificates of deposit insured by CDARS®	24,752		0.3	%	26,901		0.4	%
Brokered money market accounts	116,878		1.5	%	100,854		1.4	%
Subtotal	7,596,823		100.0	%	7,438,594		100.0	%
Premium resulting from acquisition date fair value adjustment	126				235
Total deposits	$	7,596,949			$	7,438,829

__________

(1) Reclassified to conform to the current period’s presentation. The reclassification was limited to changing the threshold for certificates of deposit presented to the current FDIC insurance limit.

Borrowings

We rely on FHLB advances and FRB borrowings as another source of both short and long-term funding. FHLB advances and FRB borrowings are secured by bonds within our investment portfolio, and residential, commercial and commercial real estate loans. At March 31, 2016, we had FHLB advances of $6.5 million compared to $68.5 million at December 31, 2015.

We also utilize wholesale and retail repurchase agreements as a supplement to our funding sources. Our wholesale repurchase agreements are secured by mortgage-backed securities. At March 31, 2016 and December 31, 2015, we had term repurchase agreements of $25.0 million, which mature in 2018, and deposit customer sweep-related repurchase agreements of $48.8 million and $74.7 million, respectively, which mature on a daily basis. Management anticipates we will continue to rely on FHLB advances, FRB borrowings, and wholesale and retail repurchase agreements in the future and we will use those funds primarily to make loans and purchase securities.

Contractual Obligations, Commitments & Off-Balance Sheet Arrangements

We are party to many contractual financial obligations, including repayment of borrowings, operating and equipment lease payments, off-balance sheet commitments to extend credit and investments in affordable housing partnerships. At March 31, 2016, we had commitments to extend credit of $2.01 billion compared to $1.98 billion at December 31, 2015.

50

Capital Resources

Shareholders’ equity at March 31, 2016 was $1.26 billion, an increase from $1.24 billion at December 31, 2015. Shareholders’ equity was 14% of total period-end assets at March 31, 2016 and December 31, 2015.

Capital Ratios: Basel III capital requirements and various provisions of the Dodd-Frank Act (the “New Capital Rules”) became effective on January 1, 2015. The New Capital Rules, among other things, (i) introduce a new capital measure called “Common Equity Tier 1,” or CET1, (ii) specify that Tier 1 capital consists of CET1 and “Additional Tier 1 capital” instruments meeting specified requirements, (iii) define CET1 narrowly by requiring that most deductions/adjustments to regulatory capital measures be made to CET1 and not to the other components of capital and (iv) expand the scope of the deductions/adjustments to capital as compared to existing regulations. Under the requirements that are now effective, the minimum capital ratios are now (i) 4.5% CET1 to risk-weighted assets, (ii) 6% Tier 1 capital to risk-weighted assets, (iii) 8% total capital to risk-weighted assets and (iv) 4% Tier 1 leverage. The Company and the Bank have made the one-time election to opt-out of including accumulated other comprehensive income items in regulatory capital calculations.

The New Capital Rules also require a capital conservation buffer designed to absorb losses during periods of economic stress. The capital conservation buffer is composed entirely of CET1, on top of these minimum risk-weighted asset ratios. In addition, the New Capital Rules provide for a countercyclical capital buffer applicable only to certain covered institutions. We do not expect the countercyclical capital buffer to be applicable to us or the Bank. Banking institutions with a ratio of CET1 to risk-weighted assets above the minimum but below the capital conservation buffer (or below the combined capital conservation buffer and countercyclical capital buffer, when the latter is applied) will face constraints on dividends, equity repurchases and compensation based on the amount of the shortfall.

The implementation of the capital conservation buffer began on January 1, 2016 at the 0.625% level and will be phased-in over a three-year period (increasing by 0.625% on each subsequent January 1, until it reaches 2.5% on January 1, 2019). When fully phased-in, the New Capital Rules will require us, and the Bank, to maintain such additional capital conservation buffer of 2.5% of CET1, effectively resulting in minimum ratios of (i) 7% CET1 to risk-weighted assets, (ii) 8.5% Tier 1 capital to risk-weighted assets, and (iii) 10.5% total capital to risk-weighted assets. At March 31, 2016, the capital conservation buffer was 4.9539% and 4.7861% for the Company and Bank, respectively. Therefore, we met all capital adequacy requirements under the New Capital Rules on a fully phased-in basis as if all such requirements were in effect at March 31, 2016.

FDIC regulations set forth the qualifications necessary for a bank to be classified as “well capitalized,” primarily for assignment of FDIC insurance premium rates. To qualify as “well capitalized,” banks must have a CET1 risk-adjusted capital ratio of 6.5%, a Tier I risk-adjusted capital ratio of at least 8%, a total risk-adjusted capital ratio of at least 10% and a leverage ratio of at least 5%. Failure to qualify as “well capitalized” can negatively impact a bank’s ability to expand and to engage in certain activities.

The Company and its banking subsidiary qualify as “well-capitalized” at March 31, 2016 and December 31, 2015. The following table presents the capital ratios and the capital conservation buffer, as applicable, for the Company and its banking subsidiary at March 31, 2016 and December 31, 2015:

	Company				Columbia Bank
	March 31, 2016		December 31, 2015		March 31, 2016		December 31, 2015
Common equity tier 1 (CET1) risk-based capital ratio	11.9246	%	11.94	%	11.7706	%	11.76	%
Tier 1 risk-based capital ratio	11.9392	%	11.95	%	11.7706	%	11.76	%
Total risk-based capital ratio	12.9539	%	12.94	%	12.7861	%	12.75	%
Leverage ratio	9.9343	%	10.03	%	9.8142	%	9.89	%
Capital conservation buffer	4.9539	%	N/A		4.7861	%	N/A

51

Non-GAAP Financial Measures

The Company considers operating net interest margin (tax equivalent) to be an important measurement as it more closely reflects the ongoing operating performance of the Company. Additionally, presentation of the operating net interest margin allows readers to compare certain aspects of the Company’s net interest margin to other organizations. Despite the importance of the operating net interest margin (tax equivalent) to the Company, there is no standardized definition for it and, as a result, the Company’s calculations may not be comparable with other organizations. The Company encourages readers to consider its consolidated financial statements in their entirety and not to rely on any single financial measure.

The following table reconciles the Company’s calculation of the operating net interest margin (tax equivalent) to the net interest margin (tax equivalent) for the periods indicated:

	Three Months Ended March 31,
	2016			2015
Operating net interest margin non-GAAP reconciliation:	(dollars in thousands)
Net interest income (tax equivalent) (1)	$	82,661		$	82,667
Adjustments to arrive at operating net interest income (tax equivalent):
Incremental accretion income on FDIC purchased credit impaired loans	(1,657		)	(2,447		)
Incremental accretion income on other FDIC acquired loans (2)	—			(117		)
Incremental accretion income on other acquired loans	(3,073		)	(4,934		)
Premium amortization on acquired securities	2,324			2,861
Interest reversals on nonaccrual loans	453			650
Operating net interest income (tax equivalent) (1)	$	80,708		$	78,680
Average interest earning assets	$	8,005,945		$	7,529,040
Net interest margin (tax equivalent) (1)	4.13		%	4.39		%
Operating net interest margin (tax equivalent) (1)	4.03		%	4.18		%

__________

(1) Tax-exempt interest income has been adjusted to a tax equivalent basis. The amount of such adjustment was an addition to net interest income of $2.5 million and $2.3 million for the three months ended March 31, 2016 and 2015, respectively.

(2) For 2016, incremental accretion income on other FDIC acquired loans is no longer considered significant and will no longer be tracked for this non-GAAP financial measure.

52

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

A number of measures are used to monitor and manage interest rate risk, including income simulations and interest sensitivity (gap) analysis. An income simulation model is the primary tool used to assess the direction and magnitude of changes in net interest income resulting from changes in interest rates. Basic assumptions in the model include prepayment speeds on mortgage-related assets, cash flows and maturities of other investment securities, loan and deposit volumes and pricing. These assumptions are inherently subjective and, as a result, the model cannot precisely estimate net interest income or precisely predict the impact of higher or lower interest rates on net interest income. Actual results will differ from simulated results due to timing, magnitude and frequency of interest rate changes and changes in market conditions and management strategies, among other factors. At March 31, 2016, based on the measures used to monitor and manage interest rate risk, there has not been a material change in the Company’s interest rate risk since December 31, 2015. For additional information, refer to Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s 2015 Annual Report on Form 10-K.

Item 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of the Company’s management, including the Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), of the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934). Based on that evaluation, the CEO and CFO have concluded that as of the end of the period covered by this report, our disclosure controls and procedures are effective in ensuring that the information required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of 1934 is (i) accumulated and communicated to our management (including the CEO and CFO) to allow timely decisions regarding required disclosure, and (ii) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Changes in Internal Control Over Financial Reporting

There was no change in our internal controls over financial reporting during our most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

53

PART II - OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

The Company and its subsidiaries are party to routine litigation arising in the ordinary course of business. Management believes that, based on information currently known to it, any liabilities arising from such litigation will not have a material adverse impact on the Company’s financial conditions, results of operations or cash flows.

Item 1A. RISK FACTORS

Refer to Item 1A of Part I of the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 for a discussion of risk factors relating to the Company’s business. The Company believes that there has been no material change in its risk factors as previously disclosed in the Company’s Form 10-K.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Not applicable

(b) Not applicable

(c) The following table provides information about repurchases of common stock by the Company during the quarter ended March 31, 2016:

Period	Total Number of Common Shares Purchased (1)	Average Price Paid per Common Share		Total Number of Shares Purchased as Part of Publicly Announced Plan (2)	Maximum Number of Remaining Shares That May Yet Be Purchased Under the Plan (2)
1/1/2016 - 1/31/2016	419	$	29.01	—	—
2/1/2016 - 2/29/2016	34,871	29.24		—	—
3/1/2016 - 3/31/2016	—	—		—	—
	35,290	$	29.24	—

(1) Common shares repurchased by the Company during the quarter consist of cancellation of 35,290 shares of common stock to pay the shareholders’ withholding taxes.

(2) The Company does not have a current share repurchase plan.

Item 3. DEFAULTS UPON SENIOR SECURITIES

None.

Item 4. MINE SAFETY DISCLOSURES

Not applicable.

Item 5. OTHER INFORMATION

None.

54

Item 6. EXHIBITS

31.1+	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2+	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32+	Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101+	The following financial information from Columbia Banking System, Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2016 is formatted in XBRL: (i) the Unaudited Consolidated Balance Sheets, (ii) the Unaudited Consolidated Statements of Income, (iii) the Unaudited Consolidated Statements of Comprehensive Income, (iv) the Unaudited Consolidated Statements of Changes in Shareholders’ Equity, (v) the Unaudited Consolidated Statements of Cash Flows, and (vi) the Notes to Unaudited Consolidated Financial Statements.

+ Filed herewith

55

SIGNATURES

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

		COLUMBIA BANKING SYSTEM, INC.
Date:	May 5, 2016	By	/s/ MELANIE J. DRESSEL
			Melanie J. Dressel
			President and Chief Executive Officer (Principal Executive Officer)
Date:	May 5, 2016	By	/s/ CLINT E. STEIN
			Clint E. Stein
			Executive Vice President and Chief Financial Officer (Principal Financial Officer)
Date:	May 5, 2016	By	/s/ BARRY S. RAY
			Barry S. Ray
			Senior Vice President and Chief Accounting Officer (Principal Accounting Officer)

56

INDEX TO EXHIBITS

31.1+	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2+	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32+	Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101+	The following financial information from Columbia Banking System, Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2016 is formatted in XBRL: (i) the Unaudited Consolidated Balance Sheets, (ii) the Unaudited Consolidated Statements of Income, (iii) the Unaudited Consolidated Statements of Comprehensive Income, (iv) the Unaudited Consolidated Statements of Changes in Shareholders’ Equity, (v) the Unaudited Consolidated Statements of Cash Flows, and (vi) the Notes to Unaudited Consolidated Financial Statements.

+ Filed herewith

57

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Melanie J. Dressel, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Columbia Banking System, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ MELANIE J. DRESSEL

Melanie J. Dressel
President and Chief Executive Officer

Date: May 5, 2016

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Clint E. Stein, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Columbia Banking System, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ CLINT E. STEIN

Clint E. Stein
Executive Vice President and
Chief Financial Officer

Date: May 5, 2016

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Columbia Banking System, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Melanie J. Dressel, President and Chief Executive Officer, and Clint E. Stein, Executive Vice President and Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ MELANIE J. DRESSEL

Melanie J. Dressel

President and Chief Executive Officer

Columbia Banking System, Inc.

/s/ CLINT E. STEIN

Clint E. Stein

Executive Vice President and

Chief Financial Officer

Columbia Banking System, Inc.

Dated: May 5, 2016

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 30, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Entity Registrant Name	COLUMBIA BANKING SYSTEM INC
Entity Central Index Key	0000887343
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		58,004,075

XML

Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
ASSETS
Cash and due from banks		$ 150,683	$ 166,929
Interest-earning deposits with banks		38,248	8,373
Total cash and cash equivalents		188,931	175,302
Securities available for sale at fair value (amortized cost of $2,156,999 and $2,157,610, respectively)		2,186,166	2,157,694
Federal Home Loan Bank stock at cost		10,241	12,722
Loans held for sale		3,681	4,509
Loans, net of unearned income of ($39,410) and ($42,373), respectively		5,877,283	5,815,027
Less: allowance for loan and lease losses		69,264	68,172
Loans, net		5,808,019	5,746,855
FDIC loss-sharing asset		5,954	6,568
Interest receivable		29,304	27,877
Premises and equipment, net		158,101	164,239
Other real estate owned		12,427	13,738
Goodwill		382,762	382,762
Other intangible assets, net		21,994	23,577
Other assets		228,352	235,854
Total assets		9,035,932	8,951,697
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing		3,553,468	3,507,358
Interest-bearing		4,043,481	3,931,471
Total deposits		7,596,949	7,438,829
Federal Home Loan Bank advances		6,521	68,531
Securities sold under agreements to repurchase		73,839	99,699
Other liabilities		97,835	102,510
Total liabilities		$ 7,775,144	$ 7,709,569
Commitments and contingent liabilities (Note 10)
Shareholders' equity:
Preferred Stock, Shares Authorized		2,000	2,000
Preferred Stock, Shares Issued		9	9
Preferred Stock, Value, Issued		$ 2,217	$ 2,217
Authorized shares		115,000	115,000
Common Stock Shares Issued And Outstanding		58,008	57,724
Common Stock (no par value)		$ 991,026	$ 990,281
Retained earnings		255,202	255,925
Accumulated other comprehensive income (loss)	[1]	12,343	(6,295)
Total shareholders’ equity		1,260,788	1,242,128
Total liabilities and shareholders’ equity		$ 9,035,932	$ 8,951,697

[1] All amounts are net of tax. Amounts in parenthesis indicate debits.

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Securities available-for-sale, amortized cost	$ 2,156,999	$ 2,157,610
Less: unearned income on loans	$ (39,410)	$ (42,373)
Common stock, par value	$ 0	$ 0
Authorized shares	115,000	115,000
Common stock, shares outstanding	58,008	57,724

XML

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Interest Income
Loans		$ 70,316	$ 70,822
Taxable securities		8,017	7,526
Tax-exempt securities		2,803	3,042
Deposits in banks		38	27
Total interest income		81,174	81,417
Interest Expense
Deposits		742	748
Federal Home Loan Bank advances		124	159
Other borrowings		138	146
Total interest expense		1,004	1,053
Net Interest Income		80,170	80,364
Provision for loan and lease losses		5,254	1,209
Net interest income after provision for loan and lease losses		74,916	79,155
Noninterest Income
Deposit account and treasury management fees (1)	[1]	6,989	6,860
Card revenue	[1]	5,652	5,363
Financial services and trust revenue	[1]	2,821	3,124
Loan revenue	[1]	2,262	2,603
Merchant processing revenue		2,102	2,040
Bank Owned Life Insurance Income		1,116	1,078
Investment securities gains, net		373	721
Change in FDIC loss-sharing asset		(1,103)	150
Other (1)	[1]	434	828
Total noninterest income		20,646	22,767
Noninterest Expense
Compensation and employee benefits		36,319	39,100
Occupancy		10,173	7,993
Merchant processing expense		1,033	977
Advertising and promotion		842	931
Data processing		4,146	4,984
Legal and professional fees		1,325	2,507
Taxes, licenses and fees		1,290	1,232
Regulatory premiums		1,141	1,221
Net cost (benefit) of operation of other real estate owned		104	(1,246)
Amortization of intangibles		1,583	1,817
Other		7,118	7,218
Total noninterest expense		65,074	66,734
Income before income taxes		30,488	35,188
Income tax provision		9,229	10,827
Net Income		$ 21,259	$ 24,361
Earnings per common share
Basic ($ per share)		$ 0.37	$ 0.42
Diluted ($ per share)		0.37	0.42
Dividends paid per common share		$ 0.38	$ 0.30
Weighted average number of common shares outstanding		57,114	56,965
Weighted average number of diluted common shares outstanding		57,125	56,978

[1] Reclassified to conform to the current period’s presentation. Reclassifications consisted of disaggregating fee revenue previously presented in ‘Service charges and other fees’ and certain revenue previously presented in ‘Other’ into the presentation above. The Company made these reclassifications to provide additional information about its sources of noninterest income. There was no change to total noninterest income as previously reported as a result of these reclassifications.

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Net income		$ 21,259	$ 24,361
Unrealized gain from securities:
Net unrealized holding loss from available for sale securities arising during the period		18,770	9,376
Reclassification adjustment of net gain from sale of available for sale securities included in income		(238)	(459)
Net unrealized gain from securities, net of reclassification adjustment		18,532	8,917
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period		0	(280)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost		106	28
Pension plan liability adjustment, net		106	(252)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	[1]	18,638	8,665
Total comprehensive income		$ 39,897	$ 33,026

[1] All amounts are net of tax. Amounts in parenthesis indicate debits.

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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net unrealized holding gain (loss) from available for sale securities arising during the period, tax	$ 10,686	$ 5,338
Reclassification adjustment of net gain from sale of available for sale securities included in income, tax	135	262
Net unrealized loss from unfunded defined benefit plan liability arising during the period, tax	0	159
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, tax	$ (61)	$ (16)

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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Preferred Stock [Member]
Balance, value at Dec. 31, 2014	$ 1,228,175	$ 985,839	$ 234,498	$ 5,621	$ 2,217
Balance, shares at Dec. 31, 2014		57,437,000			8,782
Net income	24,361		24,361
Other comprehensive income	8,665			8,665
Issuance of common stock - stock option and other plans, value		$ 428
Issuance of common stock - stock option and other plans, shares		17,000
Issuance of common stock - restricted stock awards, net of cancelled awards, value		$ 862
Issuance of common stock - restricted stock awards, net of cancelled awards, shares		273,000
Stock Repurchased and Retired During Period, Value		$ (781)
Stock Repurchased During Period, Shares		(28,000)
Dividends, Preferred Stock, Cash			(31)
Cash dividends paid on common stock	(17,236)		(17,236)
Balance, value at Mar. 31, 2015	1,244,443	$ 986,348	241,592	14,286	$ 2,217
Balance, shares at Mar. 31, 2015		57,699,000			8,782
Stock Issued During Period, Shares, New Issues					0
Stock Issued During Period, Value, New Issues					$ 0
Balance, value at Dec. 31, 2015	1,242,128	$ 990,281	255,925	(6,295)	$ 2,217
Balance, shares at Dec. 31, 2015		57,724,000			8,782
Net income	21,259		21,259
Other comprehensive income	18,638			18,638
Issuance of common stock - stock option and other plans, value	598	$ 598
Issuance of common stock - stock option and other plans, shares		20,000
Issuance of common stock - restricted stock awards, net of cancelled awards, value	1,180	$ 1,180
Issuance of common stock - restricted stock awards, net of cancelled awards, shares		299,000
Stock Repurchased and Retired During Period, Value	(1,033)	$ (1,033)
Stock Repurchased During Period, Shares		(35,000)
Dividends, Preferred Stock, Cash	(39)		39
Cash dividends paid on common stock	(21,943)		(21,943)
Balance, value at Mar. 31, 2016	$ 1,260,788	$ 991,026	$ 255,202	$ 12,343	$ 2,217
Balance, shares at Mar. 31, 2016		58,008,000			8,782

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Consolidated Statements of Cash Flows - USD ($)		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Cash Flows From Operating Activities
Net income		$ 21,259,000	$ 24,361,000
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses		5,254,000	1,209,000
Stock-based compensation expense		1,180,000	862,000
Depreciation, amortization and accretion		10,798,000	7,735,000
Investment securities gain, net		373,000	721,000
Net realized (gain) loss on sale of other assets		106,000	(306,000)
Net gain on sale and valuation adjustments of OREO	[1]	(90,000)	1,539,000
Payments for Origination and Purchases of Loans Held-for-sale	[1]	(19,174,000)	(14,890,000)
Proceeds from Sale of Loans Held-for-sale	[1]	20,002,000	12,461,000
Net change in:
Interest receivable		(1,427,000)	(1,286,000)
Interest payable		(55,000)	(79,000)
Other assets		(3,731,000)	(4,531,000)
Other liabilities		(4,619,000)	3,680,000
Net cash provided by operating activities		29,310,000	26,956,000
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected		(64,056,000)	(12,443,000)
Purchases of securities available for sale		(95,686,000)	(11,362,000)
Purchases of premises and equipment		(445,000)	(4,032,000)
Payments to Acquire Federal Home Loan Bank Stock		(10,520,000)	0
Proceeds from FDIC for reimbursement on loss-sharing asset		258,000	1,138,000
Proceeds from sales of securities available for sale		38,876,000	57,243,000
Proceeds from principal repayments and maturities of securities available for sale		52,422,000	54,451,000
Proceeds from Sales of Assets, Investing Activities		1,911,000	7,384,000
Proceeds from Sale of Federal Home Loan Bank Stock	[1]	13,001,000	361,000
Proceeds from sales of other real estate and other personal property owned	[1]	1,326,000	5,067,000
Payments to FDIC related to loss-sharing asset		(611,000)	(479,000)
Net cash provided by (used in) investing activities		(63,524,000)	97,328,000
Cash Flows From Financing Activities
Net increase in deposits		158,120,000	150,243,000
Net decrease in sweep repurchase agreements		(25,860,000)	(8,228,000)
Proceeds from Federal Home Loan Bank advances		165,000,000	624,000,000
Proceeds from exercise of stock options		598,000	428,000
Repayment of Federal Home Loan Bank advances		(227,000,000)	(804,000,000)
Payment of common stock dividends		(21,943,000)	(17,236,000)
Payments of Ordinary Dividends, Preferred Stock and Preference Stock		(39,000)	(31,000)
Repayments of Subordinated Debt		0	8,248,000
Purchase and retirement of common stock		1,033,000	781,000
Net cash provided by (used in) financing activities		47,843,000	(63,853,000)
Increase in cash and cash equivalents		13,629,000	60,431,000
Cash and cash equivalents at beginning of period		175,302,000	188,170,000
Cash and cash equivalents at end of period		188,931,000	248,601,000
Supplemental Information:
Cash paid for interest		1,059,000	1,132,000
Cash paid for income tax		6,350,000	13,000
Non-cash investing and financing activities
Loans transferred to other real estate owned		$ 105,000	$ 4,692,000

[1] Reclassified to conform to the current period’s presentation. There were no changes to cash flows from operating, investing, or financing activities as a result of these reclassifications.

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Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2016

Basis of Presentation And Significant Accounting Policies

Basis of Presentation and Significant Accounting Policies

Basis of Presentation and Significant Accounting Policies

Basis of Presentation

The interim unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with instructions to Form 10-Q and Article 10 of Regulation S-X. The consolidated financial statements include the accounts of Columbia Banking System, Inc. (“we”, “our”, “Columbia” or the “Company”) and its subsidiaries, including its wholly owned banking subsidiary Columbia State Bank (“Columbia Bank” or the “Bank”) and Columbia Trust Company (“Columbia Trust”). All intercompany transactions and accounts have been eliminated in consolidation. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair statement of the results for the interim periods presented have been included. The results of operations for the three months ended March 31, 2016 are not necessarily indicative of results to be anticipated for the year ending December 31, 2016. The accompanying interim unaudited consolidated financial statements should be read in conjunction with the financial statements and related notes contained in the Company’s 2015 Annual Report on Form 10-K.

Because of reclassifications, changes occurred in the manner in which certain comparative period noninterest income items were presented in the unaudited consolidated statements of income. Specifically, fee revenue previously presented as ‘Service charges and other fees’ and certain fee revenue previously presented as ‘Other’ were reclassified to conform to the current period presentation. The Company made these presentation changes to provide additional information about its sources of noninterest income. There was no change to total noninterest income as previously reported as a result of these reclassifications.

Significant Accounting Policies

The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2015 Annual Report on Form 10-K. There have not been any changes in our significant accounting policies compared to those contained in our 2015 Form 10-K disclosure for the year ended December 31, 2015.

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Accounting Pronouncements Recently Issued

3 Months Ended

Mar. 31, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Accounting Pronouncements Recently Issued

Accounting Pronouncements Recently Issued

In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting. The amendments included in this ASU simplify several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. The amendments in ASU 2016-09 are effective for the first interim or annual period beginning after December 15, 2016. Early adoption is permitted. The Company is assessing the impact that this guidance will have on its consolidated financial statements as well as whether to early adopt this ASU.

In February 2016, the FASB issued ASU 2016-02, Leases. The amendments included in this ASU create a new accounting model for both lessees and lessors. The new guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms greater than 12 months. The amendments in ASU 2016-02 must be adopted using the modified retrospective approach and will be effective for the first interim or annual period beginning after December 15, 2018. Early adoption is permitted. The Company is assessing the impact that this guidance will have on its consolidated financial statements.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in ASU 2016-01 require all equity investments to be measured at fair value with changes in the fair value recognized through net income. The amendments in ASU 2016-01 also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, the amendments in this Update eliminate the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. The amendments in ASU 2016-01 are effective for the first interim or annual period beginning after December 15, 2017. The Company is assessing the impact that this guidance will have on its consolidated financial statements but does not expect the impact to be material.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. The guidance in this update supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the industry topics of the codification. For public companies, this update was to be effective for interim and annual periods beginning after December 15, 2016. However, in August 2015, the FASB issued ASU 2015-14, which delayed the effective date of ASU 2014-09 by one year and permits companies to voluntarily adopt the new standard as of the original effective date. In March 2016, the FASB issued ASU 2016-08 and ASU 2016-10 to provide implementation guidance for ASU 2014-09. The Company is assessing the impact that this guidance will have on its consolidated financial statements but does not expect the impact to be material.

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Securities

3 Months Ended

Mar. 31, 2016

Available-for-sale Securities [Abstract]

Securities

e following table summarizes the amortized cost, gross unrealized gains and losses and the resulting fair value of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,319,714	$	14,247	$	(3,861	)	$	1,330,100
State and municipal securities	477,544		14,257		(414		)	491,387
U.S. government agency and government-sponsored enterprise securities	353,910		5,031		—			358,941
U.S. government securities	547		—		—			547
Other securities	5,284		53		(146		)	5,191
Total	$	2,156,999	$	33,588	$	(4,421	)	$	2,186,166
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,296,955	$	4,525	$	(14,991	)	$	1,286,489
State and municipal securities	480,417		12,690		(938		)	492,169
U.S. government agency and government-sponsored enterprise securities	354,515		1,113		(1,846		)	353,782
U.S. government securities	20,439		—		(302		)	20,137
Other securities	5,284		24		(191		)	5,117
Total	$	2,157,610	$	18,352	$	(18,268	)	$	2,157,694

Proceeds from sales of securities available for sale were $38.9 million and $57.2 million for the three months ended March 31, 2016 and 2015, respectively. The following table provides the gross realized gains and losses on the sales of securities for the periods indicated:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Gross realized gains	$	373	$	730
Gross realized losses	—		(9		)
Net realized gains	$	373	$	721

The scheduled contractual maturities of investment securities available for sale at March 31, 2016 are presented as follows:

	March 31, 2016
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	39,056	$	39,243
Due after one year through five years	435,423		440,733
Due after five years through ten years	711,190		723,977
Due after ten years	966,046		977,022
Other securities with no stated maturity	5,284		5,191
Total investment securities available-for-sale	$	2,156,999	$	2,186,166

The following table summarizes the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	March 31, 2016
	(in thousands)
Washington and Oregon State to secure public deposits	$	339,424
Federal Reserve Bank to secure borrowings	48,879
Other securities pledged	156,551
Total securities pledged as collateral	$	544,854

The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016 and December 31, 2015:

	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	95,313	$	(533	)	$	190,975	$	(3,328	)	$	286,288	$	(3,861	)
State and municipal securities	25,702		(125		)	19,010		(289		)	44,712		(414		)
U.S. government agency and government-sponsored enterprise securities	4,063		—			500		—			4,563		—
Other securities	—		—			2,810		(146		)	2,810		(146		)
Total	$	125,078	$	(658	)	$	213,295	$	(3,763	)	$	338,373	$	(4,421	)
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	664,509	$	(7,610	)	$	214,325	$	(7,381	)	$	878,834	$	(14,991	)
State and municipal securities	48,261		(358		)	31,383		(580		)	79,644		(938		)
U.S. government agency and government-sponsored enterprise securities	193,400		(1,128		)	40,034		(718		)	233,434		(1,846		)
U.S. government securities	10,343		(136		)	9,794		(166		)	20,137		(302		)
Other securities	2,300		(15		)	2,780		(176		)	5,080		(191		)
Total	$	918,813	$	(9,247	)	$	298,316	$	(9,021	)	$	1,217,129	$	(18,268	)

At March 31, 2016, there were 74 U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations securities in an unrealized loss position, of which 45 were in a continuous loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates relative to where these investments fall within the yield curve and their individual characteristics. Because the Company does not intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there were 40 state and municipal government securities in an unrealized loss position, of which 20 were in a continuous loss position for 12 months or more. The unrealized losses on state and municipal securities were caused by interest rate changes or widening of market spreads subsequent to the purchase of the individual securities. Management monitors published credit ratings of these securities for adverse changes. As of March 31, 2016, none of the rated obligations of state and local government entities held by the Company had a below investment grade credit rating. Because the credit quality of these securities are investment grade and the Company does not intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there were two U.S. government agency and government-sponsored enterprise securities in an unrealized loss position, of which one was in a continuous loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates relative to where these investments fall within the yield curve and their individual characteristics. Because the Company does not currently intend to sell these securities nor does the Company consider it more likely than not that it will be required to sell these securities before the recovery of amortized cost basis, which may be upon maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2016.

At March 31, 2016, there was one other security in an unrealized loss position, which was in a continuous unrealized loss position for 12 months or more. The decline in fair value is attributable to changes in interest rates and the additional risk premium investors are demanding for investment securities with these characteristics. The Company does not consider this investment to be other-than-temporarily impaired at March 31, 2016 as it has the intent and ability to hold the investment for sufficient time to allow for recovery in the market value.

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Loans

3 Months Ended

Mar. 31, 2016

Loans Receivable, Net [Abstract]

Loans

e Company’s loan portfolio includes originated and purchased loans. Originated loans and purchased loans for which there was no evidence of credit deterioration at their acquisition date and it was probable that we would be able to collect all contractually required payments are referred to collectively as loans, excluding purchased credit impaired loans. Purchased loans for which there was, at acquisition date, evidence of credit deterioration since their origination and it was probable that we would be unable to collect all contractually required payments are referred to as purchased credit impaired loans, or “PCI loans.”

The following is an analysis of the loan portfolio by segment (net of unearned income):

	March 31, 2016									December 31, 2015
	Loans, excluding PCI loans			PCI Loans			Total			Loans, excluding PCI loans			PCI Loans			Total
	(in thousands)
Commercial business	$	2,401,193		$	34,474		$	2,435,667		$	2,362,575		$	34,848		$	2,397,423
Real estate:
One-to-four family residential	175,050			22,720			197,770			176,295			23,938			200,233
Commercial and multifamily residential	2,520,352			93,979			2,614,331			2,491,736			99,389			2,591,125
Total real estate	2,695,402			116,699			2,812,101			2,668,031			123,327			2,791,358
Real estate construction:
One-to-four family residential	133,447			2,163			135,610			135,874			2,278			138,152
Commercial and multifamily residential	183,548			1,618			185,166			167,413			1,630			169,043
Total real estate construction	316,995			3,781			320,776			303,287			3,908			307,195
Consumer	329,902			18,247			348,149			342,601			18,823			361,424
Less: Net unearned income	(39,410		)	—			(39,410		)	(42,373		)	—			(42,373		)
Total loans, net of unearned income	5,704,082			173,201			5,877,283			5,634,121			180,906			5,815,027
Less: Allowance for loan and lease losses	(56,200		)	(13,064		)	(69,264		)	(54,446		)	(13,726		)	(68,172		)
Total loans, net	$	5,647,882		$	160,137		$	5,808,019		$	5,579,675		$	167,180		$	5,746,855
Loans held for sale	$	3,681		$	—		$	3,681		$	4,509		$	—		$	4,509

At March 31, 2016 and December 31, 2015, the Company had no material foreign activities. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington, Oregon and Idaho.

The Company has made loans to executive officers and directors of the Company and related interests. These loans are made on the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with unrelated persons and do not involve more than the normal risk of collectability. The aggregate dollar amount of these loans was $9.9 million at March 31, 2016 and $10.0 million at December 31, 2015. During the first three months of 2016, there were $55 thousand in advances and $96 thousand in repayments.

At March 31, 2016 and December 31, 2015, $2.21 billion and $2.22 billion of commercial and residential real estate loans were pledged as collateral on Federal Home Loan Bank of Des Moines (“FHLB”) borrowings and additional borrowing capacity. The Company has also pledged $50.2 million and $50.1 million of commercial loans to the Federal Reserve Bank for additional borrowing capacity at March 31, 2016 and December 31, 2015, respectively.

The following is an analysis of nonaccrual loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016				December 31, 2015
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business:
Secured	$	22,452	$	31,039	$	9,395	$	15,688
Unsecured	107		331		42		256
Real estate:
One-to-four family residential	730		1,702		820		1,866
Commercial & multifamily residential:
Commercial land	238		247		349		332
Income property	2,897		3,185		2,843		3,124
Owner occupied	4,982		7,473		6,321		8,943
Real estate construction:
One-to-four family residential:
Land and acquisition	205		231		362		385
Residential construction	563		563		566		679
Consumer	4,717		4,985		766		990
Total	$	36,891	$	49,756	$	21,464	$	32,263

Loans, excluding purchased credit impaired loans

The following is an aging of the recorded investment of the loan portfolio as of March 31, 2016 and December 31, 2015:

	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,277,121	$	4,148	$	311	$	—	$	4,459	$	22,452	$	2,304,032
Unsecured	91,785		684		—		—		684		107		92,576
Real estate:
One-to-four family residential	170,846		686		62		—		748		730		172,324
Commercial & multifamily residential:
Commercial land	218,925		—		—		—		—		238		219,163
Income property	1,321,566		—		—		—		—		2,897		1,324,463
Owner occupied	946,635		4,577		—		—		4,577		4,982		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		—		—		—		205		13,120
Residential construction	119,125		—		—		—		—		563		119,688
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		86,584
Owner occupied	94,743		—		—		—		—		—		94,743
Consumer	314,197		1,541		740		—		2,281		4,717		321,195
Total	$	5,654,442	$	11,636	$	1,113	$	—	$	12,749	$	36,891	$	5,704,082
	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,241,069	$	11,611	$	617	$	—	$	12,228	$	9,395	$	2,262,692
Unsecured	94,867		39		—		—		39		42		94,948
Real estate:
One-to-four family residential	170,913		1,637		66		—		1,703		820		173,436
Commercial & multifamily residential:
Commercial land	212,740		69		—		—		69		349		213,158
Income property	1,305,502		1,750		684		—		2,434		2,843		1,310,779
Owner occupied	939,396		599		—		—		599		6,321		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		—		—		—		362		14,750
Residential construction	119,809		—		—		—		—		566		120,375
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		83,634
Owner occupied	81,671		—		—		—		—		—		81,671
Consumer	328,219		2,597		780		—		3,377		766		332,362
Total	$	5,592,208	$	18,302	$	2,147	$	—	$	20,449	$	21,464	$	5,634,121

The following is an analysis of impaired loans as of March 31, 2016 and December 31, 2015:

	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,285,351	$	18,681	$	11,861	$	11,996	$	2,500	$	6,820	$	12,314
Unsecured	92,576		—		—		—		—		—		—
Real estate:
One-to-four family residential	171,660		664		—		—		—		664		1,093
Commercial & multifamily residential:
Commercial land	219,163		—		—		—		—		—		—
Income property	1,322,410		2,053		—		—		—		2,053		2,257
Owner occupied	951,216		4,978		—		—		—		4,978		7,390
Real estate construction:
One-to-four family residential:
Land and acquisition	12,810		310		—		—		—		310		334
Residential construction	119,126		562		—		—		—		562		562
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		—
Owner occupied	94,743		—		—		—		—		—		—
Consumer	319,628		1,567		15		15		15		1,552		1,634
Total	$	5,675,267	$	28,815	$	11,876	$	12,011	$	2,515	$	16,939	$	25,584
	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,257,168	$	5,524	$	690	$	718	$	321	$	4,834	$	6,455
Unsecured	94,948		—		—		—		—		—		—
Real estate:
One-to-four family residential	172,150		1,286		314		339		314		972		1,397
Commercial & multifamily residential:
Commercial land	213,158		—		—		—		—		—		—
Income property	1,308,673		2,106		—		—		—		2,106		2,311
Owner occupied	940,261		6,055		—		—		—		6,055		8,528
Real estate construction:
One-to-four family residential:
Land and acquisition	14,283		467		—		—		—		467		490
Residential construction	119,813		562		335		335		3		227		227
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		—
Owner occupied	81,671		—		—		—		—		—		—
Consumer	332,282		80		15		15		15		65		139
Total	$	5,618,041	$	16,080	$	1,354	$	1,407	$	653	$	14,726	$	19,547

The following table provides additional information on impaired loans for the three month periods indicated:

	Three Months Ended March 31,
	2016				2015
	Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans		Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
	(in thousands)
Commercial business:
Secured	$	12,103	$	17	$	10,698	$	7
Unsecured	—		—		1		—
Real estate:
One-to-four family residential	975		6		3,162		13
Commercial & multifamily residential:
Commercial land	—		—		235		—
Income property	2,080		3		4,168		10
Owner occupied	5,516		7		7,938		234
Real estate construction:
One-to-four family residential:
Land and acquisition	388		1		544		1
Residential construction	562		—		446		—
Consumer	824		2		404		2
Total	$	22,448	$	36	$	27,596	$	267

The following is an analysis of loans classified as troubled debt restructurings (“TDR”) during the three months ended March 31, 2016 and 2015:

	Three months ended March 31, 2016					Three months ended March 31, 2015
	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Commercial business:
Secured	3	$	1,370	$	1,370	—	$	—	$	—
Commercial and multifamily residential:
Owner occupied	1	250		250		—	—		—
Consumer	4	497		497		—	—		—
Total	8	$	2,117	$	2,117	—	$	—	$	—

The Company’s loans classified as TDR are loans that have been modified or the borrower has been granted special concessions due to financial difficulties that, if not for the challenges of the borrower, the Company would not otherwise consider. The TDR modifications or concessions are made to increase the likelihood that these borrowers with financial difficulties will be able to satisfy their debt obligations as amended. The concessions granted in the restructurings summarized in the table above largely consisted of maturity extensions, interest rate modifications or a combination of both. In limited circumstances, a reduction in the principal balance of the loan could also be made as a concession. Credit losses for loans classified as TDR are measured on the same basis as impaired loans. For impaired loans, an allowance is established when the collateral value less selling costs (or discounted cash flows or observable market price) of the impaired loan is lower than the recorded investment of that loan.

The Company had commitments to lend $7 thousand of additional funds on loans classified as TDR as of March 31, 2016. The Company had no such commitments at December 31, 2015. The Company did not have any loans modified as TDR that defaulted within twelve months of being modified as TDR during the three month periods ended March 31, 2016 and 2015.

Purchased Credit Impaired Loans

Purchased credit impaired (“PCI”) loans are accounted for under ASC 310-30 and initially measured at fair value based on expected future cash flows over the life of the loans. Loans that have common risk characteristics are aggregated into pools. The Company remeasures contractual and expected cash flows, at the pool-level, on a quarterly basis.

Contractual cash flows are calculated based upon the loan pool terms after applying a prepayment factor. Calculation of the applied prepayment factor for contractual cash flows is the same as described below for expected cash flows.

Inputs to the determination of expected cash flows include cumulative default and prepayment data as well as loss severity and recovery lag information. Cumulative default and prepayment data are calculated via a transition matrix. The transition matrix is a matrix of probability values that specifies the probability of a loan pool transitioning into a particular delinquency state (e.g. 0-30 days past due, 31 to 60 days, etc.) given its delinquency state at the remeasurement date. Loss severity factors are based upon either actual charge-off data within the loan pools or industry averages and recovery lags are based upon the collateral within the loan pools.

The excess of cash flows expected to be collected over the initial fair value of purchased credit impaired loans is referred to as the accretable yield and is accreted into interest income over the estimated life of the acquired loans using the effective yield method. Other adjustments to the accretable yield include changes in the estimated remaining life of the acquired loans, changes in expected cash flows and changes of indices for acquired loans with variable interest rates.

The following is an analysis of our PCI loans, net of related allowance for losses and remaining valuation discounts as of March 31, 2016 and December 31, 2015:

	March 31, 2016		December 31, 2015
	(in thousands)
Commercial business	$	38,209	$	38,784
Real estate:
One-to-four family residential	25,766		27,195
Commercial and multifamily residential	100,384		106,308
Total real estate	126,150		133,503
Real estate construction:
One-to-four family residential	2,200		2,326
Commercial and multifamily residential	1,809		1,834
Total real estate construction	4,009		4,160
Consumer	20,226		20,903
Subtotal of PCI loans	188,594		197,350
Less:
Valuation discount resulting from acquisition accounting	15,393		16,444
Allowance for loan losses	13,064		13,726
PCI loans, net of allowance for loan losses	$	160,137	$	167,180

The following table shows the changes in accretable yield for PCI loans for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	58,981		$	73,849
Accretion	(4,229		)	(6,319		)
Disposals	94			(1,093		)
Reclassifications from nonaccretable difference	1,761			2,289
Balance at end of period	$	56,607		$	68,726

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Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit

3 Months Ended

Mar. 31, 2016

Allowance For Loan And Lease Losses And Unfunded Loan Commitments And Letters Of Credit

Allowance For Loan And Lease Losses And Unfunded Loan Commitments And Letters Of Credit Text Block

lowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit

Loans, excluding PCI loans

We maintain an allowance for loan and lease losses (“ALLL”) to absorb losses inherent in the loan portfolio. The size of the ALLL is determined through quarterly assessments of the probable estimated losses in the loan portfolio. Our methodology for making such assessments and determining the adequacy of the ALLL includes the following key elements:

1. General valuation allowance consistent with the Contingencies topic of the FASB ASC.

2. Classified loss reserves on specific relationships. Specific allowances for identified problem loans are determined in accordance with the Receivables topic of the FASB ASC.

3. The unallocated allowance provides for other factors inherent in our loan portfolio that may not have been contemplated in the general and specific components of the allowance. This unallocated amount generally comprises less than 5% of the allowance. The unallocated amount is reviewed quarterly based on trends in credit losses, the results of credit reviews and overall economic trends.

The general valuation allowance is calculated quarterly using quantitative and qualitative information about specific loan classes. The minimum required level with respect to which an entity develops a methodology to determine its ALLL is by general categories of loans, such as commercial business, real estate, and consumer. However, the Company’s methodology in determining its ALLL is prepared in a more detailed manner at the loan class level, utilizing specific categories such as commercial business secured, commercial business unsecured, real estate commercial land, and real estate income property multifamily. The quantitative information uses historical losses from a specific loan class and incorporates the loan’s risk rating migration from origination to the point of loss based upon the consideration of an appropriate look back period.

A loan’s risk rating is primarily determined based upon the borrower’s ability to fulfill its debt obligation from a cash flow perspective. In the event there is financial deterioration of the borrower, the borrower’s other sources of income or repayment are also considered, including recent appraisal values for collateral dependent loans. The qualitative information takes into account general economic and business conditions affecting our marketplace, seasoning of the loan portfolio, duration of the business cycle, etc. to ensure our methodologies reflect the current economic environment and other factors as using historical loss information exclusively may not give an accurate estimate of inherent losses within the Company’s loan portfolio.

When a loan is deemed to be impaired, the Company has to determine if a specific valuation allowance is required for that loan. The specific valuation allowance is a reserve, calculated at the individual loan level, for each loan determined to be both impaired and containing a value less than its recorded investment. The Company measures the impairment based on the discounted expected future cash flows, observable market price, or the fair value of the collateral less selling costs if the loan is collateral dependent or if foreclosure is probable. The specific reserve for each loan is equal to the difference between the recorded investment in the loan and its determined impairment value.

The ALLL is increased by provisions for loan and lease losses (“provision”) charged to expense, and is reduced by loans charged off, net of recoveries or a recovery of previous provisions. While the Company’s management believes the best information available is used to determine the ALLL, changes in market conditions could result in adjustments to the ALLL, affecting net income, if circumstances differ from the assumptions used in determining the ALLL.

We have used the same methodology for ALLL calculations during the three months ended March 31, 2016 and 2015. Adjustments to the percentages of the ALLL allocated to loan categories are made based on trends with respect to delinquencies and problem loans within each class of loans. The Company reviews the ALLL quantitative and qualitative methodology on a quarterly basis and makes adjustments when appropriate. The Company continues to make revisions to its ALLL as necessary to maintain adequate reserves. The Company carefully monitors the loan portfolio and continues to emphasize the importance of credit quality.

Once it is determined that all or a portion of a loan balance is uncollectable, and the amount can be reasonably estimated, the uncollectable portion of the loan is charged-off.

PCI Loans

Purchased credit impaired loans that have common risk characteristics are aggregated into loan pools. When required, we record impairment, at the pool-level, to adjust the pool’s carrying value to its net present value of expected future cash flows. Quarterly, we re-measure expected loan pool cash flows. If, due to credit deterioration, the present value of expected cash flows is less than carrying value, we reduce the loan pool’s carrying value by adjusting the ALLL with an impairment charge to earnings which is recorded as provision for loan losses. If credit quality improves and the present value of expected cash flows exceeds carrying value, we increase the loan pool’s carrying value by recapturing previously recorded ALLL, if any. See Note 4, Loans, for further discussion of the accounting for PCI loans.

Credit losses attributable to draws on purchased credit impaired loans, advanced subsequent to the loan purchase date, are accounted for under ASC 450-20 and those amounts are also subject to the Company’s internal and external credit review. An ALLL is estimated in a similar manner as loans, excluding PCI loans, and a provision for loan losses is charged to earnings as necessary.

The following tables show a detailed analysis of the ALLL for the three months ended March 31, 2016 and 2015:

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2016	(in thousands)
Commercial business:
Secured	$	32,321	$	(3,770	)	$	611	$	2,952		$	32,114	$	2,500	$	29,614
Unsecured	1,299		(3		)	51		(47		)	1,300		—		1,300
Real estate:
One-to-four family residential	916		—			41		(303		)	654		—		654
Commercial & multifamily residential:
Commercial land	1,178		—			—		84			1,262		—		1,262
Income property	6,616		—			61		725			7,402		—		7,402
Owner occupied	5,550		—			8		528			6,086		—		6,086
Real estate construction:
One-to-four family residential:
Land and acquisition	339		—			51		250			640		—		640
Residential construction	733		—			203		513			1,449		—		1,449
Commercial & multifamily residential:
Income property	388		—			1		326			715		—		715
Owner occupied	1,006		—			—		204			1,210		—		1,210
Consumer	3,531		(266		)	165		(62		)	3,368		15		3,353
Purchased credit impaired	13,726		(2,866		)	1,551		653			13,064		—		13,064
Unallocated	569		—			—		(569		)	—		—		—
Total	$	68,172	$	(6,905	)	$	2,743	$	5,254		$	69,264	$	2,515	$	66,749

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2015	(in thousands)
Commercial business:
Secured	$	25,923	$	(1,386	)	$	512	$	712		$	25,761	$	24	$	25,737
Unsecured	927		(40		)	106		19			1,012		—		1,012
Real estate:
One-to-four family residential	2,281		(8		)	12		(921		)	1,364		115		1,249
Commercial & multifamily residential:
Commercial land	799		—			—		28			827		—		827
Income property	9,159		—			3,252		(3,971		)	8,440		—		8,440
Owner occupied	5,007		—			9		596			5,612		24		5,588
Real estate construction:
One-to-four family residential:
Land and acquisition	1,197		—			2		(173		)	1,026		67		959
Residential construction	1,860		—			26		(96		)	1,790		—		1,790
Commercial & multifamily residential:
Income property	622		—			3		202			827		—		827
Owner occupied	434		—			—		65			499		—		499
Consumer	3,180		(891		)	273		273			2,835		—		2,835
Purchased credit impaired	16,336		(4,100		)	1,686		2,609			16,531		—		16,531
Unallocated	1,844		—			—		1,866			3,710		—		3,710
Total	$	69,569	$	(6,425	)	$	5,881	$	1,209		$	70,234	$	230	$	70,004

Changes in the allowance for unfunded commitments and letters of credit, a component of other liabilities in the consolidated balance sheet, are summarized as follows:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Balance at beginning of period	$	2,930	$	2,655
Net changes in the allowance for unfunded commitments and letters of credit	—		—
Balance at end of period	$	2,930	$	2,655

Risk Elements

The extension of credit in the form of loans or other credit products to individuals and businesses is one of our principal business activities. Our policies and applicable laws and regulations require risk analysis as well as ongoing portfolio and credit management. We manage our credit risk through lending limit constraints, credit review, approval policies and extensive, ongoing internal monitoring. We also manage credit risk through diversification of the loan portfolio by type of loan, type of industry and type of borrower and by limiting the aggregation of debt to a single borrower.

Risk ratings are reviewed and updated whenever appropriate, with more periodic reviews as the risk and dollar value of loss on the loan increases. In the event full collection of principal and interest is not reasonably assured, the loan is appropriately downgraded and, if warranted, placed on nonaccrual status even though the loan may be current as to principal and interest payments. Additionally, we assess whether an impairment of a loan warrants specific reserves or a write-down of the loan.

Pass rated loans are generally considered to have sufficient sources of repayment in order to repay the loan in full in accordance with all terms and conditions. Special Mention rated loans have potential weaknesses that, if left uncorrected, may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Loans with a risk rating of Substandard or worse are reported as classified loans in our ALLL analysis. We review these loans to assess the ability of our borrowers to service all interest and principal obligations and, as a result, the risk rating may be adjusted accordingly. Loans risk rated as Substandard reflect loans where a loss is possible if loan weaknesses are not corrected. Doubtful rated loans have a high probability of loss, however, the amount of loss has not yet been determined. Loss rated loans are considered uncollectable and when identified, are charged off.

The following is an analysis of the credit quality of our loan portfolio, excluding PCI loans, as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,185,283	$	54,957	$	63,792	$	—	$	—	$	2,304,032
Unsecured	91,737		277		562		—		—		92,576
Real estate:
One-to-four family residential	170,788		461		1,075		—		—		172,324
Commercial and multifamily residential:
Commercial land	213,936		4,804		423		—		—		219,163
Income property	1,306,718		6,394		11,351		—		—		1,324,463
Owner occupied	933,090		7,978		15,126		—		—		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		205		—		—		13,120
Residential construction	118,843		—		845		—		—		119,688
Commercial and multifamily residential:
Income property	86,584		—		—		—		—		86,584
Owner occupied	90,807		—		3,936		—		—		94,743
Consumer	313,249		—		7,946		—		—		321,195
Total	$	5,523,950	$	74,871	$	105,261	$	—	$	—	5,704,082
Less:
Allowance for loan and lease losses											56,200
Loans, excluding PCI loans, net											$	5,647,882

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,146,729	$	59,746	$	56,217	$	—	$	—	$	2,262,692
Unsecured	93,347		278		1,323		—		—		94,948
Real estate:
One-to-four family residential	171,945		52		1,439		—		—		173,436
Commercial and multifamily residential:
Commercial land	207,768		4,966		424		—		—		213,158
Income property	1,296,043		5,889		8,847		—		—		1,310,779
Owner occupied	918,986		9,668		17,662		—		—		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		362		—		—		14,750
Residential construction	119,243		—		1,132		—		—		120,375
Commercial and multifamily residential:
Income property	83,634		—		—		—		—		83,634
Owner occupied	81,270		—		401		—		—		81,671
Consumer	328,286		—		4,076		—		—		332,362
Total	$	5,461,639	$	80,599	$	91,883	$	—	$	—	5,634,121
Less:
Allowance for loan and lease losses											54,446
Loans, excluding PCI loans, net											$	5,579,675

The following is an analysis of the credit quality of our PCI loan portfolio as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,706	$	99	$	5,297	$	—	$	—	$	37,102
Unsecured	1,106		—		1		—		—		1,107
Real estate:
One-to-four family residential	23,766		—		2,000		—		—		25,766
Commercial and multifamily residential:
Commercial land	8,037		—		623		—		—		8,660
Income property	33,558		—		3,970		—		—		37,528
Owner occupied	52,487		—		1,709		—		—		54,196
Real estate construction:
One-to-four family residential:
Land and acquisition	1,143		—		315		—		—		1,458
Residential construction	414		—		328		—		—		742
Commercial and multifamily residential:
Income property	1,283		—		—		—		—		1,283
Owner occupied	526		—		—		—		—		526
Consumer	19,531		—		695		—		—		20,226
Total	$	173,557	$	99	$	14,938	$	—	$	—	188,594
Less:
Valuation discount resulting from acquisition accounting											15,393
Allowance for loan losses											13,064
PCI loans, net											$	160,137

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,468	$	101	$	5,995	$	—	$	—	$	37,564
Unsecured	1,218		—		2		—		—		1,220
Real estate:
One-to-four family residential	25,018		—		2,177		—		—		27,195
Commercial and multifamily residential:
Commercial land	8,234		—		664		—		—		8,898
Income property	36,426		—		5,916		—		—		42,342
Owner occupied	53,071		261		1,736		—		—		55,068
Real estate construction:
One-to-four family residential:
Land and acquisition	1,086		—		479		—		—		1,565
Residential construction	427		—		334		—		—		761
Commercial and multifamily residential:
Income property	1,303		—		—		—		—		1,303
Owner occupied	531		—		—		—		—		531
Consumer	20,122		—		781		—		—		20,903
Total	$	178,904	$	362	$	18,084	$	—	$	—	197,350
Less:
Valuation discount resulting from acquisition accounting											16,444
Allowance for loan losses											13,726
PCI loans, net											$	167,180

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Other Real Estate Owned

3 Months Ended

Mar. 31, 2016

Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract]

Other Real Estate Owned

Other Real Estate Owned (“OREO”)

The following tables set forth activity in OREO for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance, beginning of period	$	13,738		$	22,190
Transfers in	105			4,692
Valuation adjustments	(137		)	(197		)
Proceeds from sale of OREO property	(1,326		)	(5,122		)
Gain on sale of OREO, net	47			1,736
Balance, end of period	$	12,427		$	23,299

At March 31, 2016, the carrying amount of foreclosed residential real estate properties held as a result of obtaining physical possession was $2.2 million and the recorded investment of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process was $1.3 million.

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Covered Assets and FDIC Loss-sharing Asset

3 Months Ended

Mar. 31, 2016

Covered Assets And FDIC Loss Sharing Asset

Covered Assets and FDIC Loss sharing Asset

FDIC Loss-sharing Asset and Covered Assets

We are a party to eight loss-sharing agreements with the FDIC relating to four FDIC-assisted acquisitions. Such agreements cover a substantial portion of losses incurred on acquired covered loans and OREO. The loss-sharing agreements relate to the acquisitions of (1) Columbia River Bank in January 2010, (2) American Marine Bank in January 2010, (3) Summit Bank in May 2011, and (4) First Heritage Bank in May 2011. Under the terms of the loss-sharing agreements, the FDIC will absorb 80% of losses and share in 80% of loss recoveries up to specified amounts. With respect to loss-sharing agreements for two acquisitions completed in 2010, after those specified amounts, the FDIC will absorb 95% of losses and share in 95% of loss recoveries. The loss-sharing provisions of the agreements for non-single family and single family mortgage loans are in effect for five and ten years, respectively and the loss recovery provisions are in effect for eight and ten years, respectively. The loss-sharing provisions for the Columbia River Bank and American Marine Bank non-single family covered assets were effective through the end of the first quarter of 2015. In addition, the loss-sharing provisions for the Summit Bank and First Heritage Bank non-single family covered assets will be expiring at the end of the second quarter of 2016. Accordingly, further activity will be limited to recoveries through the first quarter of 2018 and second quarter of 2019, respectively, for assets covered by these loss-sharing agreements.

Ten years and forty-five days after the applicable acquisition dates, the Bank must pay to the FDIC a clawback in the event the losses from the acquisitions fail to reach stated levels. The amount of the clawback is determined by a formula specified in each individual loss-sharing agreement. As of March 31, 2016, the net present value of the Bank’s estimated clawback liability was $5.4 million, which was included in other liabilities on the consolidated balance sheets.

At March 31, 2016, the FDIC loss-sharing asset was comprised of a $4.6 million FDIC indemnification asset and a $1.4 million FDIC receivable. The indemnification asset represents the net present value of cash flows the Company expects to collect from the FDIC under the loss-sharing agreements and the FDIC receivable represents amounts from the FDIC for which the Company has requested reimbursement but has not yet received reimbursement.

For PCI loans, the Company remeasures contractual and expected cash flows on a quarterly basis. When the quarterly remeasurement process results in a decrease in expected cash flows due to an increase in expected credit losses, impairment is recorded. As a result of this impairment, for loans covered by loss-sharing agreements with respect to which the loss-sharing provisions are still effective, the indemnification asset is increased to reflect anticipated future cash to be received from the FDIC. Consistent with the loss-sharing agreements between the Company and the FDIC, the amount of the increase to the indemnification asset is measured as 80% of the resulting impairment.

Alternatively, when the quarterly remeasurement results in an increase in expected future cash flows due to a decrease in expected credit losses, the nonaccretable difference decreases and the effective yield of the related loan portfolio is increased. As a result of the improved expected cash flows, for loans covered by loss-sharing agreements with respect to which the loss-sharing provisions are still effective, the indemnification asset would be reduced first by the amount of any impairment previously recorded and, second, by increased amortization over the remaining life of the related loss-sharing agreement.

The following table shows a detailed analysis of the FDIC loss-sharing asset for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	6,568		$	15,174
Adjustments not reflected in income:
Cash (received from) paid to the FDIC, net	353			(659		)
FDIC reimbursable recoveries, net	136			(21		)
Adjustments reflected in income:
Amortization, net	(1,332		)	(2,294		)
Loan impairment	147			1,532
Sale of other real estate	144			(420		)
Write-downs of other real estate	18			1,071
Other	(80		)	261
Balance at end of period	$	5,954		$	14,644

The following table presents information about the composition of the FDIC loss-sharing asset, the clawback liability, and the non-single family and the single family covered assets as of the date indicated:

	March 31, 2016
	Columbia River Bank		American Marine Bank		Summit Bank		First Heritage Bank		Total
	(in thousands)
FDIC loss-sharing asset	$	537	$	2,404	$	1,799	$	1,214	$	5,954
Clawback liability	$	3,420	$	1,264	$	—	$	734	$	5,418
Non-single family covered assets	$	66,682	$	11,321	$	8,381	$	14,779	$	101,163
Single family covered assets	$	7,764	$	22,561	$	6,046	$	1,735	$	38,106
Loss-sharing expiration dates:
Non-single family	First Quarter 2015		First Quarter 2015		Second Quarter 2016		Second Quarter 2016
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021
Loss recovery expiration dates:
Non-single family	First Quarter 2018		First Quarter 2018		Second Quarter 2019		Second Quarter 2019
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021

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Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Other Intangible Assets

In accordance with the Intangibles – Goodwill and Other topic of the FASB ASC, goodwill is not amortized but is reviewed for potential impairment at the reporting unit level. Management analyzes its goodwill for impairment on an annual basis on July 31 and between annual tests in certain circumstances such as material adverse changes in legal, business, regulatory and economic factors. An impairment loss is recorded to the extent that the carrying amount of goodwill exceeds its implied fair value.

The core deposit intangible (“CDI”) is evaluated for impairment if events and circumstances indicate a possible impairment. The CDI is amortized on an accelerated basis over an estimated life of 10 years.

The following table sets forth activity for goodwill and other intangible assets for the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Goodwill
Total goodwill	$	382,762		$	382,537
Other intangible assets, net
Core deposit intangible:
Gross core deposit intangible balance at beginning of period	58,598			58,598
Accumulated amortization at beginning of period	(35,940		)	(29,058		)
Core deposit intangible, net at beginning of period	22,658			29,540
CDI current period amortization	(1,583		)	(1,817		)
Total core deposit intangible, net at end of period	21,075			27,723
Intangible assets not subject to amortization	919			919
Other intangible assets, net at end of period	21,994			28,642
Total goodwill and other intangible assets at end of period	$	404,756		$	411,179

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2016 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2016	$	4,363
2017	4,913
2018	3,855
2019	2,951
2020	2,048

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Derivatives and Balance Sheet Offsetting

3 Months Ended

Mar. 31, 2016

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivatives and Hedging Activities

Derivatives and Balance Sheet Offsetting

The Company periodically enters into certain commercial loan interest rate swap agreements in order to provide commercial loan customers the ability to convert from variable to fixed interest rates. Under these agreements, the Company enters into a variable-rate loan agreement with a customer in addition to a swap agreement. This swap agreement effectively converts the customer’s variable rate loan into a fixed rate. The Company then enters into a corresponding swap agreement with a third-party in order to offset its exposure on the variable and fixed components of the customer agreement. As the interest rate swap agreements with the customers and third parties are not designated as hedges under the Derivatives and Hedging topic of the FASB ASC, the instruments are marked to market in earnings. The notional amount of open interest rate swap agreements at March 31, 2016 and December 31, 2015 was $267.5 million and $264.4 million, respectively. During the three months ended March 31, 2016 and 2015, mark-to-market losses of $8 thousand and $5 thousand, respectively were recorded to other noninterest expense.

The following table presents the fair value of derivatives not designated as hedging instruments at March 31, 2016 and December 31, 2015:

Asset Derivatives

Liability Derivatives

March 31, 2016

December 31, 2015

March 31, 2016

December 31, 2015

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

(in thousands)

Interest rate contracts

Other assets

$

18,641

Other assets

$

12,438

Other liabilities

$

18,689

Other liabilities

$

12,478

The Company is party to interest rate contracts and repurchase agreements that are subject to enforceable master netting arrangements or similar agreements. Under these agreements, the Company may have the right to net settle multiple contracts with the same counterparty. The following tables show the gross interest rate swap agreements and repurchase agreements in the consolidated balance sheets and the respective collateral received or pledged in the form of other financial instruments, which are generally marketable securities. The collateral amounts in these tables are limited to the outstanding balances of the related asset or liability. Therefore, instances of overcollateralization are not shown.

	Gross Amounts of Recognized Assets/Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets/Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset in the Consolidated Balance Sheets
							Collateral Posted			Net Amount
March 31, 2016	(in thousands)
Assets
Interest rate contracts	$	18,641	$	—	$	18,641	$	—		$	18,641
Liabilities
Interest rate contracts	$	18,689	$	—	$	18,689	$	(18,689	)	$	—
Repurchase agreements	$	73,839	$	—	$	73,839	$	(73,839	)	$	—
December 31, 2015
Assets
Interest rate contracts	$	12,438	$	—	$	12,438	$	—		$	12,438
Liabilities
Interest rate contracts	$	12,478	$	—	$	12,478	$	(12,478	)	$	—
Repurchase agreements	$	99,699	$	—	$	99,699	$	(99,699	)	$	—

The following table presents the class of collateral pledged for repurchase agreements as well as the remaining contractual maturity of the repurchase agreements:

	Remaining contractual maturity of the agreements
	Overnight and continuous		Up to 30 days		30 - 90 days		Greater than 90 days		Total
March 31, 2016	(in thousands)
Class of collateral pledged for repurchase agreements
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	48,839	$	—	$	—	$	25,000	$	73,839
Gross amount of recognized liabilities for repurchase agreements									73,839
Amounts related to agreements not included in offsetting disclosure									$	—

The collateral utilized for the Company’s repurchase agreements is subject to market fluctuations as well as prepayments of principal. The Company monitors the risk of the fair value of its pledged collateral falling below acceptable amounts based on the type of the underlying repurchase agreement. The pledged collateral related to the Company’s term wholesale repurchase agreement, which matures in 2018, is monitored on a monthly basis and additional capital is pledged when necessary. The pledged collateral related to the Company’s sweep repurchase agreements, which mature on an overnight basis, is monitored on a daily basis as the underlying sweep accounts can have frequent transaction activity and the amount of pledged collateral is adjusted as necessary.

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Commitments and Contingent Liabilities

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

Commitments and Contingent Liabilities

Lease Commitments: The Company leases locations as well as equipment under various non-cancellable operating leases that expire between 2016 and 2043. The majority of the leases contain renewal options and provisions for increases in rental rates based on an agreed upon index or predetermined escalation schedule.

Financial Instruments with Off-Balance Sheet Risk: In the normal course of business, the Company makes loan commitments (typically unfunded loans and unused lines of credit) and issues standby letters of credit to accommodate the financial needs of its customers. At March 31, 2016 and December 31, 2015, the Company’s loan commitments amounted to $1.96 billion and $1.93 billion, respectively.

Standby letters of credit commit the Company to make payments on behalf of customers under specified conditions. Historically, no significant losses have been incurred by the Company under standby letters of credit. Both arrangements have credit risk essentially the same as that involved in extending loans to customers and are subject to the Company’s normal credit policies, including collateral requirements, where appropriate. Standby letters of credit were $46.9 million and $38.7 million at March 31, 2016 and December 31, 2015, respectively. In addition, commitments under commercial letters of credit used to facilitate customers’ trade transactions and other off-balance sheet liabilities amounted to $5.6 million and $5.0 million at March 31, 2016 and December 31, 2015, respectively.

Legal Proceedings: The Company and its subsidiaries are from time to time defendants in and are threatened with various legal proceedings arising from their regular business activities. Management, after consulting with legal counsel, is of the opinion that the ultimate liability, if any, resulting from these pending or threatened actions and proceedings will not have a material effect on the financial statements of the Company.

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Shareholders' Equity

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

Preferred Stock. In conjunction with the 2013 acquisition of West Coast Bancorp, the Company issued 8,782 shares of mandatorily convertible cumulative participating preferred stock, Series B (“Series B Preferred Stock”). The Series B Preferred Stock is not subject to the operation of a sinking fund. The Series B Preferred Stock is not redeemable by the Company and is perpetual with no maturity. The holders of Series B Preferred Stock have no general voting rights. If the Company declares and pays a dividend to its common shareholders, it must declare and pay to its holders of Series B Preferred Stock, on the same date, a dividend in an amount per share of the Series B Preferred Stock that is intended to provide such holders dividends in the amount they would have received if shares of Series B Preferred Stock had been converted into common stock as of that date. The outstanding shares of Series B Preferred Stock are convertible into 102,363 shares of Company common stock.

Dividends. On January 28, 2016, the Company declared a quarterly cash dividend of $0.18 per common share and common share equivalent for holders of preferred stock, and a special cash dividend of $0.20 per common share and common share equivalent for holders of preferred stock, both payable on February 24, 2016 to shareholders of record at the close of business on February 10, 2016.

Subsequent to quarter end, on April 27, 2016, the Company declared a regular quarterly cash dividend of $0.19 per common share and common share equivalent for holders of preferred stock, and a special cash dividend of $0.18 per common share and common share equivalent for holders of preferred stock, both payable on May 25, 2016 to shareholders of record at the close of business on May 11, 2016.

The payment of cash dividends is subject to federal regulatory requirements for capital levels and other restrictions. In addition, the cash dividends paid by Columbia Bank to the Company are subject to both federal and state regulatory requirements.

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Accumulated Other Comprehensive Income

3 Months Ended

Mar. 31, 2016

Accumulated Other Comprehensive Income (Loss) [Abstract]

Accumulated Other Comprehensive Income

ccumulated Other Comprehensive Income (Loss)

The following table shows changes in accumulated other comprehensive income (loss) by component for the three month periods ended March 31, 2016 and 2015:

	Unrealized Gains and Losses on Available-for-Sale Securities (1)			Unrealized Gains and Losses on Pension Plan Liability (1)			Total (1)
Three months ended March 31, 2016	(in thousands)
Beginning balance	$	386		$	(6,681	)	$	(6,295	)
Other comprehensive income before reclassifications	18,770			—			18,770
Amounts reclassified from accumulated other comprehensive income (loss)	(238		)	106			(132		)
Net current-period other comprehensive income	18,532			106			18,638
Ending balance	$	18,918		$	(6,575	)	$	12,343
Three months ended March 31, 2015
Beginning balance	$	7,462		$	(1,841	)	$	5,621
Other comprehensive income (loss) before reclassifications	9,376			(280		)	9,096
Amounts reclassified from accumulated other comprehensive income (loss)	(459		)	28			(431		)
Net current-period other comprehensive income (loss)	8,917			(252		)	8,665
Ending balance	$	16,379		$	(2,093	)	$	14,286

__________

(1) All amounts are net of tax. Amounts in parenthesis indicate debits.

The following table shows details regarding the reclassifications from accumulated other comprehensive income (loss) for the three month periods ended March 31, 2016 and 2015:

	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
	Three Months Ended March 31,						Affected line Item in the Consolidated
	2016			2015			Statement of Income
	(in thousands)
Unrealized gains and losses on available-for-sale securities
Investment securities gains	$	373		$	721		Investment securities gains, net
	373			721			Total before tax
	(135		)	(262		)	Income tax provision
	$	238		$	459		Net of tax
Amortization of pension plan liability
Actuarial losses	$	(167	)	$	(44	)	Compensation and employee benefits
	(167		)	(44		)	Total before tax
	61			16			Income tax benefit
	$	(106	)	$	(28	)	Net of tax

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Fair Value Accounting and Measurement

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Accounting and Measurement

Fair Value Accounting and Measurement

The Fair Value Measurements and Disclosures topic of the FASB ASC defines fair value, establishes a consistent framework for measuring fair value and expands disclosure requirements about fair value. We hold fixed and variable rate interest-bearing securities, investments in marketable equity securities and certain other financial instruments, which are carried at fair value. Fair value is determined based upon quoted prices when available or through the use of alternative approaches, such as matrix or model pricing, when market quotes are not readily accessible or available.

The valuation techniques are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our own market assumptions. These two types of inputs create the following fair value hierarchy:

Level 1 – Quoted prices for identical instruments in active markets that are accessible at the measurement date.

Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable.

Fair values are determined as follows:

Securities at fair value are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors. These fair value calculations are considered a Level 2 input method under the provisions of the Fair Value Measurements and Disclosures topic of the FASB ASC for all securities other than U.S. Treasury Notes, which are considered a Level 1 input method.

Interest rate contract positions are valued in models, which use as their basis, readily observable market parameters and are classified within Level 2 of the valuation hierarchy.

The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis at March 31, 2016 and December 31, 2015 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
March 31, 2016	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,330,100	$	—	$	1,330,100	$	—
State and municipal debt securities	491,387		—		491,387		—
U.S. government agency and government-sponsored enterprise securities	358,941		—		358,941		—
U.S. government securities	547		547		—		—
Other securities	5,191		—		5,191		—
Total securities available for sale	$	2,186,166	$	547	$	2,185,619	$	—
Other assets (Interest rate contracts)	$	18,641	$	—	$	18,641	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	18,689	$	—	$	18,689	$	—

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
December 31, 2015	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,286,489	$	—	$	1,286,489	$	—
State and municipal debt securities	492,169		—		492,169		—
U.S. government agency and government-sponsored enterprise securities	353,782		—		353,782		—
U.S. government securities	20,137		20,137		—		—
Other securities	5,117		—		5,117		—
Total securities available for sale	$	2,157,694	$	20,137	$	2,137,557	$	—
Other assets (Interest rate contracts)	$	12,438	$	—	$	12,438	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	12,478	$	—	$	12,478	$	—

There were no transfers between Level 1 and Level 2 of the valuation hierarchy during the three month periods ended March 31, 2016 and 2015. The Company recognizes transfers between levels of the valuation hierarchy based on the valuation level at the end of the reporting period.

Nonrecurring Measurements

Certain assets and liabilities are measured at fair value on a nonrecurring basis after initial recognition such as loans measured for impairment and OREO. The following methods were used to estimate the fair value of each such class of financial instrument:

Impaired loans—A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan agreement. Impaired loans are measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, a loan’s observable market price, or the fair market value of the collateral less estimated costs to sell if the loan is a collateral-dependent loan. Generally, the Company utilizes the fair market value of the collateral to measure impairment. The impairment evaluations are performed in conjunction with the ALLL process on a quarterly basis by officers in the Special Credits group, which reports to the Chief Credit Officer. The Real Estate Appraisal Services Department (“REASD”), which also reports to the Chief Credit Officer, is responsible for obtaining appraisals from third-parties or performing internal evaluations. If an appraisal is obtained from a third-party, the REASD reviews the appraisal to evaluate the adequacy of the appraisal report, including its scope, methods, accuracy, and reasonableness.

Other real estate owned—OREO is real property that the Bank has taken ownership of in partial or full satisfaction of a loan or loans. OREO is generally measured based on the property’s fair market value as indicated by an appraisal or a letter of intent to purchase. OREO is initially recorded at the fair value less estimated costs to sell. This amount becomes the property’s new basis. Any fair value adjustments based on the property’s fair value less estimated costs to sell at the date of acquisition are charged to the ALLL, or in the event of a write-up without previous losses charged to the ALLL, a credit to earnings is recorded. Management periodically reviews OREO in an effort to ensure the property is recorded at its fair value, net of estimated costs to sell. Any fair value adjustments subsequent to acquisition are charged or credited to earnings. The initial and subsequent evaluations are performed by officers in the Special Credits group, which reports to the Chief Credit Officer. The REASD obtains appraisals from third-parties for OREO and performs internal evaluations. If an appraisal is obtained from a third-party, the REASD reviews the appraisal to evaluate the adequacy of the appraisal report, including its scope, methods, accuracy, and reasonableness.

The following tables set forth information related to the Company’s assets that were measured using fair value estimates on a nonrecurring basis during the current and prior year quarterly periods:

	Fair value at March 31, 2016		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2016
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	10,681	$	—	$	—	$	10,681	$	2,676
OREO	2,553		—		—		2,553		137
	$	13,234	$	—	$	—	$	13,234	$	2,813

	Fair value at March 31, 2015		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2015
			Level 1		Level 2		Level 3
	(in thousands)
OREO	$	1,429	$	—	$	—	$	1,429	$	197
	$	1,429	$	—	$	—	$	1,429	$	197

The losses on impaired loans disclosed above represent the amount of the specific reserve and/or charge-offs during the period applicable to loans held at period end. The amount of the specific reserve is included in the allowance for loan and lease losses. The losses on OREO disclosed above represent the write-downs taken at foreclosure that were charged to the allowance for loan and lease losses, as well as subsequent changes in any valuation allowances from updated appraisals that were recorded to earnings.

Quantitative information about Level 3 fair value measurements

The range and weighted-average of the significant unobservable inputs used to fair value our Level 3 nonrecurring assets, along with the valuation techniques used, are shown in the following table:

	Fair value at March 31, 2016		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	10,681	Fair Market Value of Collateral	Adjustment to Stated Value	0% - 7% (6%)
OREO	2,553		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for impaired loans and OREO because there were no adjustments made to the appraisal values or stated values during the current period.

	Fair value at March 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
OREO	$	1,429	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for OREO because there were no adjustments made to the appraisal value during the current period.

Fair value of financial instruments

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

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value:

Cash and due from banks and interest-earning deposits with banks—The fair value of financial instruments that are short-term or reprice frequently and that have little or no risk are considered to have a fair value that approximates carrying value (Level 1).

Securities available for sale—Securities at fair value, other than U.S. Treasury Notes, are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors (Level 2). U.S. Treasury Notes are priced using quotes in active markets (Level 1).

Federal Home Loan Bank stock—The fair value is based upon the par value of the stock which equates to its carrying value (Level 2).

Loans held for sale—The carrying amount of loans held for sale approximates their fair values due to the short period of time between the origination and sale dates (Level 2).

Loans—Loans are not recorded at fair value on a recurring basis. Nonrecurring fair value adjustments are periodically recorded on impaired loans that are measured for impairment based on the fair value of collateral. For most performing loans, fair value is estimated using expected duration and lending rates that would have been offered on March 31, 2016 or December 31, 2015, for loans which mirror the attributes of the loans with similar rate structures and average maturities. The fair values resulting from these calculations are reduced by an amount representing the change in estimated fair value attributable to changes in borrowers’ credit quality since the loans were originated. For nonperforming loans, fair value is estimated by applying a valuation discount based upon loan sales data from the FDIC. For PCI loans, fair value is estimated by discounting the expected future cash flows using a lending rate that would have been offered on March 31, 2016 (Level 3).

FDIC loss-sharing asset —The fair value of the FDIC loss-sharing asset is estimated based on discounting the expected future cash flows using an estimated market rate (Level 3).

Interest rate contracts—Interest rate swap positions are valued in models, which use readily observable market parameters as their basis (Level 2).

Deposits—For deposits with no contractual maturity, the fair value is equal to the carrying value (Level 1). The fair value of fixed maturity deposits is based on discounted cash flows using the difference between the deposit rate and current market rates for deposits of similar remaining maturities (Level 2).

FHLB advances—The fair value of FHLB advances is estimated based on discounting the future cash flows using the market rate currently offered (Level 2).

Repurchase Agreements—The fair value of term repurchase agreements is estimated based on discounting the future cash flows using the market rate currently offered. The carrying amount of sweep repurchase agreements approximates their fair values due to the short period of time between repricing dates (Level 2).

Other Financial Instruments—The majority of our commitments to extend credit and standby letters of credit carry current market interest rates if converted to loans, as such, carrying value is assumed to equal fair value.

The following tables summarize carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value at March 31, 2016 and December 31, 2015:

	March 31, 2016
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	150,683	$	150,683	$	150,683	$	—	$	—
Interest-earning deposits with banks	38,248		38,248		38,248		—		—
Securities available for sale	2,186,166		2,186,166		547		2,185,619		—
FHLB stock	10,241		10,241		—		10,241		—
Loans held for sale	3,681		3,681		—		3,681		—
Loans	5,808,019		5,889,840		—		—		5,889,840
FDIC loss-sharing asset	5,954		1,613		—		—		1,613
Interest rate contracts	18,641		18,641		—		18,641		—
Liabilities
Deposits	$	7,596,949	$	7,593,830	$	7,162,893	$	430,937	$	—
FHLB Advances	6,521		7,459		—		7,459		—
Repurchase agreements	73,839		74,353		—		74,353		—
Interest rate contracts	18,689		18,689		—		18,689		—

	December 31, 2015
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	166,929	$	166,929	$	166,929	$	—	$	—
Interest-earning deposits with banks	8,373		8,373		8,373		—		—
Securities available for sale	2,157,694		2,157,694		20,137		2,137,557		—
FHLB stock	12,722		12,722		—		12,722		—
Loans held for sale	4,509		4,509		—		4,509		—
Loans	5,746,855		5,752,423		—		—		5,752,423
FDIC loss-sharing asset	6,568		921		—		—		921
Interest rate contracts	12,438		12,438		—		12,438		—
Liabilities
Deposits	$	7,438,829	$	7,434,787	$	6,979,924	$	454,863	$	—
FHLB Advances	68,531		69,176		—		69,176		—
Repurchase agreements	99,699		100,346		—		100,346		—
Interest rate contracts	12,478		12,478		—		12,478		—

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Earnings per Common Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Common Share

Earnings per Common Share

The Company applies the two-class method of computing basic and diluted EPS. Under the two-class method, EPS is determined for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. The Company issues restricted shares under share-based compensation plans and preferred shares which qualify as participating securities.

The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2016 and 2015:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands except per share)
Basic EPS:
Net income	$	21,259	$	24,361
Less: Earnings allocated to participating securities:
Preferred shares	39		43
Nonvested restricted shares	247		225
Earnings allocated to common shareholders	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Basic earnings per common share	$	0.37	$	0.42
Diluted EPS:
Earnings allocated to common shareholders (1)	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Dilutive effect of equity awards	11		13
Weighted average diluted common shares outstanding	57,125		56,978
Diluted earnings per common share	$	0.37	$	0.42
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	27		53

__________

(1) Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options and warrants to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.

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Securities (Tables)

3 Months Ended

Mar. 31, 2016

Available-for-sale Securities [Abstract]

Securities Available for Sale

The following table summarizes the amortized cost, gross unrealized gains and losses and the resulting fair value of securities available for sale:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,319,714	$	14,247	$	(3,861	)	$	1,330,100
State and municipal securities	477,544		14,257		(414		)	491,387
U.S. government agency and government-sponsored enterprise securities	353,910		5,031		—			358,941
U.S. government securities	547		—		—			547
Other securities	5,284		53		(146		)	5,191
Total	$	2,156,999	$	33,588	$	(4,421	)	$	2,186,166
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	1,296,955	$	4,525	$	(14,991	)	$	1,286,489
State and municipal securities	480,417		12,690		(938		)	492,169
U.S. government agency and government-sponsored enterprise securities	354,515		1,113		(1,846		)	353,782
U.S. government securities	20,439		—		(302		)	20,137
Other securities	5,284		24		(191		)	5,117
Total	$	2,157,610	$	18,352	$	(18,268	)	$	2,157,694

Schedule of gross realized gains and losses on sales and calls of securities available for sale

The following table provides the gross realized gains and losses on the sales of securities for the periods indicated:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Gross realized gains	$	373	$	730
Gross realized losses	—		(9		)
Net realized gains	$	373	$	721

Schedule of Contractual Maturities of Investment Securities Available for Sale

The scheduled contractual maturities of investment securities available for sale at March 31, 2016 are presented as follows:

	March 31, 2016
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	39,056	$	39,243
Due after one year through five years	435,423		440,733
Due after five years through ten years	711,190		723,977
Due after ten years	966,046		977,022
Other securities with no stated maturity	5,284		5,191
Total investment securities available-for-sale	$	2,156,999	$	2,186,166

Carrying Value of Securities Pledged As Collateral

The following table summarizes the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	March 31, 2016
	(in thousands)
Washington and Oregon State to secure public deposits	$	339,424
Federal Reserve Bank to secure borrowings	48,879
Other securities pledged	156,551
Total securities pledged as collateral	$	544,854

The following table presents the class of collateral pledged for repurchase agreements as well as the remaining contractual maturity of the repurchase agreements:

	Remaining contractual maturity of the agreements
	Overnight and continuous		Up to 30 days		30 - 90 days		Greater than 90 days		Total
March 31, 2016	(in thousands)
Class of collateral pledged for repurchase agreements
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	48,839	$	—	$	—	$	25,000	$	73,839
Gross amount of recognized liabilities for repurchase agreements									73,839
Amounts related to agreements not included in offsetting disclosure									$	—

Summary of Gross Unrealized Losses and Fair Value of the Investments with Unrealized Losses

The following table shows the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2016 and December 31, 2015:

	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
	(in thousands)
March 31, 2016
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	95,313	$	(533	)	$	190,975	$	(3,328	)	$	286,288	$	(3,861	)
State and municipal securities	25,702		(125		)	19,010		(289		)	44,712		(414		)
U.S. government agency and government-sponsored enterprise securities	4,063		—			500		—			4,563		—
Other securities	—		—			2,810		(146		)	2,810		(146		)
Total	$	125,078	$	(658	)	$	213,295	$	(3,763	)	$	338,373	$	(4,421	)
December 31, 2015
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	664,509	$	(7,610	)	$	214,325	$	(7,381	)	$	878,834	$	(14,991	)
State and municipal securities	48,261		(358		)	31,383		(580		)	79,644		(938		)
U.S. government agency and government-sponsored enterprise securities	193,400		(1,128		)	40,034		(718		)	233,434		(1,846		)
U.S. government securities	10,343		(136		)	9,794		(166		)	20,137		(302		)
Other securities	2,300		(15		)	2,780		(176		)	5,080		(191		)
Total	$	918,813	$	(9,247	)	$	298,316	$	(9,021	)	$	1,217,129	$	(18,268	)

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Loans (Tables)

3 Months Ended

Mar. 31, 2016

Financing Receivable, Recorded Investment [Line Items]

Analysis of Loan Portfolio by Major Types of Loans

The following is an analysis of the loan portfolio by segment (net of unearned income):

	March 31, 2016									December 31, 2015
	Loans, excluding PCI loans			PCI Loans			Total			Loans, excluding PCI loans			PCI Loans			Total
	(in thousands)
Commercial business	$	2,401,193		$	34,474		$	2,435,667		$	2,362,575		$	34,848		$	2,397,423
Real estate:
One-to-four family residential	175,050			22,720			197,770			176,295			23,938			200,233
Commercial and multifamily residential	2,520,352			93,979			2,614,331			2,491,736			99,389			2,591,125
Total real estate	2,695,402			116,699			2,812,101			2,668,031			123,327			2,791,358
Real estate construction:
One-to-four family residential	133,447			2,163			135,610			135,874			2,278			138,152
Commercial and multifamily residential	183,548			1,618			185,166			167,413			1,630			169,043
Total real estate construction	316,995			3,781			320,776			303,287			3,908			307,195
Consumer	329,902			18,247			348,149			342,601			18,823			361,424
Less: Net unearned income	(39,410		)	—			(39,410		)	(42,373		)	—			(42,373		)
Total loans, net of unearned income	5,704,082			173,201			5,877,283			5,634,121			180,906			5,815,027
Less: Allowance for loan and lease losses	(56,200		)	(13,064		)	(69,264		)	(54,446		)	(13,726		)	(68,172		)
Total loans, net	$	5,647,882		$	160,137		$	5,808,019		$	5,579,675		$	167,180		$	5,746,855
Loans held for sale	$	3,681		$	—		$	3,681		$	4,509		$	—		$	4,509

Loans, Excluding Purchased Credit Impaired Loans [Member]

Financing Receivable, Recorded Investment [Line Items]

Analysis of Nonaccrual Loans

The following is an analysis of nonaccrual loans as of March 31, 2016 and December 31, 2015:

	March 31, 2016				December 31, 2015
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business:
Secured	$	22,452	$	31,039	$	9,395	$	15,688
Unsecured	107		331		42		256
Real estate:
One-to-four family residential	730		1,702		820		1,866
Commercial & multifamily residential:
Commercial land	238		247		349		332
Income property	2,897		3,185		2,843		3,124
Owner occupied	4,982		7,473		6,321		8,943
Real estate construction:
One-to-four family residential:
Land and acquisition	205		231		362		385
Residential construction	563		563		566		679
Consumer	4,717		4,985		766		990
Total	$	36,891	$	49,756	$	21,464	$	32,263

Analysis of the Aged Loan Portfolio

The following is an aging of the recorded investment of the loan portfolio as of March 31, 2016 and December 31, 2015:

	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,277,121	$	4,148	$	311	$	—	$	4,459	$	22,452	$	2,304,032
Unsecured	91,785		684		—		—		684		107		92,576
Real estate:
One-to-four family residential	170,846		686		62		—		748		730		172,324
Commercial & multifamily residential:
Commercial land	218,925		—		—		—		—		238		219,163
Income property	1,321,566		—		—		—		—		2,897		1,324,463
Owner occupied	946,635		4,577		—		—		4,577		4,982		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		—		—		—		205		13,120
Residential construction	119,125		—		—		—		—		563		119,688
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		86,584
Owner occupied	94,743		—		—		—		—		—		94,743
Consumer	314,197		1,541		740		—		2,281		4,717		321,195
Total	$	5,654,442	$	11,636	$	1,113	$	—	$	12,749	$	36,891	$	5,704,082
	Current Loans		30 - 59 Days Past Due		60 - 89 Days Past Due		Greater than 90 Days Past Due		Total Past Due		Nonaccrual Loans		Total Loans
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,241,069	$	11,611	$	617	$	—	$	12,228	$	9,395	$	2,262,692
Unsecured	94,867		39		—		—		39		42		94,948
Real estate:
One-to-four family residential	170,913		1,637		66		—		1,703		820		173,436
Commercial & multifamily residential:
Commercial land	212,740		69		—		—		69		349		213,158
Income property	1,305,502		1,750		684		—		2,434		2,843		1,310,779
Owner occupied	939,396		599		—		—		599		6,321		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		—		—		—		362		14,750
Residential construction	119,809		—		—		—		—		566		120,375
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		83,634
Owner occupied	81,671		—		—		—		—		—		81,671
Consumer	328,219		2,597		780		—		3,377		766		332,362
Total	$	5,592,208	$	18,302	$	2,147	$	—	$	20,449	$	21,464	$	5,634,121

Impaired Financing Receivables

The following is an analysis of impaired loans as of March 31, 2016 and December 31, 2015:

	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
March 31, 2016	(in thousands)
Commercial business:
Secured	$	2,285,351	$	18,681	$	11,861	$	11,996	$	2,500	$	6,820	$	12,314
Unsecured	92,576		—		—		—		—		—		—
Real estate:
One-to-four family residential	171,660		664		—		—		—		664		1,093
Commercial & multifamily residential:
Commercial land	219,163		—		—		—		—		—		—
Income property	1,322,410		2,053		—		—		—		2,053		2,257
Owner occupied	951,216		4,978		—		—		—		4,978		7,390
Real estate construction:
One-to-four family residential:
Land and acquisition	12,810		310		—		—		—		310		334
Residential construction	119,126		562		—		—		—		562		562
Commercial & multifamily residential:
Income property	86,584		—		—		—		—		—		—
Owner occupied	94,743		—		—		—		—		—		—
Consumer	319,628		1,567		15		15		15		1,552		1,634
Total	$	5,675,267	$	28,815	$	11,876	$	12,011	$	2,515	$	16,939	$	25,584
	Recorded Investment of Loans Collectively Measured for Contingency Provision		Recorded Investment of Loans Individually Measured for Specific Impairment		Impaired Loans With Recorded Allowance						Impaired Loans Without Recorded Allowance
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
December 31, 2015	(in thousands)
Commercial business:
Secured	$	2,257,168	$	5,524	$	690	$	718	$	321	$	4,834	$	6,455
Unsecured	94,948		—		—		—		—		—		—
Real estate:
One-to-four family residential	172,150		1,286		314		339		314		972		1,397
Commercial & multifamily residential:
Commercial land	213,158		—		—		—		—		—		—
Income property	1,308,673		2,106		—		—		—		2,106		2,311
Owner occupied	940,261		6,055		—		—		—		6,055		8,528
Real estate construction:
One-to-four family residential:
Land and acquisition	14,283		467		—		—		—		467		490
Residential construction	119,813		562		335		335		3		227		227
Commercial & multifamily residential:
Income property	83,634		—		—		—		—		—		—
Owner occupied	81,671		—		—		—		—		—		—
Consumer	332,282		80		15		15		15		65		139
Total	$	5,618,041	$	16,080	$	1,354	$	1,407	$	653	$	14,726	$	19,547

The following table provides additional information on impaired loans for the three month periods indicated:

	Three Months Ended March 31,
	2016				2015
	Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans		Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
	(in thousands)
Commercial business:
Secured	$	12,103	$	17	$	10,698	$	7
Unsecured	—		—		1		—
Real estate:
One-to-four family residential	975		6		3,162		13
Commercial & multifamily residential:
Commercial land	—		—		235		—
Income property	2,080		3		4,168		10
Owner occupied	5,516		7		7,938		234
Real estate construction:
One-to-four family residential:
Land and acquisition	388		1		544		1
Residential construction	562		—		446		—
Consumer	824		2		404		2
Total	$	22,448	$	36	$	27,596	$	267

Analysis of loans classified as Troubled Debt Restructurings (“TDR”)

	Three Months Ended March 31,
	2016				2015
	Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans		Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
	(in thousands)
Commercial business:
Secured	$	12,103	$	17	$	10,698	$	7
Unsecured	—		—		1		—
Real estate:
One-to-four family residential	975		6		3,162		13
Commercial & multifamily residential:
Commercial land	—		—		235		—
Income property	2,080		3		4,168		10
Owner occupied	5,516		7		7,938		234
Real estate construction:
One-to-four family residential:
Land and acquisition	388		1		544		1
Residential construction	562		—		446		—
Consumer	824		2		404		2
Total	$	22,448	$	36	$	27,596	$	267

The following is an analysis of loans classified as troubled debt restructurings (“TDR”) during the three months ended March 31, 2016 and 2015:

	Three months ended March 31, 2016					Three months ended March 31, 2015
	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Commercial business:
Secured	3	$	1,370	$	1,370	—	$	—	$	—
Commercial and multifamily residential:
Owner occupied	1	250		250		—	—		—
Consumer	4	497		497		—	—		—
Total	8	$	2,117	$	2,117	—	$	—	$	—

Purchased Credit Impaired Loans [Member]

Financing Receivable, Recorded Investment [Line Items]

Analysis of Loan Portfolio by Major Types of Loans

The following is an analysis of our PCI loans, net of related allowance for losses and remaining valuation discounts as of March 31, 2016 and December 31, 2015:

	March 31, 2016		December 31, 2015
	(in thousands)
Commercial business	$	38,209	$	38,784
Real estate:
One-to-four family residential	25,766		27,195
Commercial and multifamily residential	100,384		106,308
Total real estate	126,150		133,503
Real estate construction:
One-to-four family residential	2,200		2,326
Commercial and multifamily residential	1,809		1,834
Total real estate construction	4,009		4,160
Consumer	20,226		20,903
Subtotal of PCI loans	188,594		197,350
Less:
Valuation discount resulting from acquisition accounting	15,393		16,444
Allowance for loan losses	13,064		13,726
PCI loans, net of allowance for loan losses	$	160,137	$	167,180

Changes in Accretable Yield for Acquired Loans

The following table shows the changes in accretable yield for PCI loans for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	58,981		$	73,849
Accretion	(4,229		)	(6,319		)
Disposals	94			(1,093		)
Reclassifications from nonaccretable difference	1,761			2,289
Balance at end of period	$	56,607		$	68,726

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Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Tables)

3 Months Ended

Mar. 31, 2016

Financing Receivable, Allowance for Credit Losses [Line Items]

Allowance for Credit Losses on Financing Receivables

The following tables show a detailed analysis of the ALLL for the three months ended March 31, 2016 and 2015:

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2016	(in thousands)
Commercial business:
Secured	$	32,321	$	(3,770	)	$	611	$	2,952		$	32,114	$	2,500	$	29,614
Unsecured	1,299		(3		)	51		(47		)	1,300		—		1,300
Real estate:
One-to-four family residential	916		—			41		(303		)	654		—		654
Commercial & multifamily residential:
Commercial land	1,178		—			—		84			1,262		—		1,262
Income property	6,616		—			61		725			7,402		—		7,402
Owner occupied	5,550		—			8		528			6,086		—		6,086
Real estate construction:
One-to-four family residential:
Land and acquisition	339		—			51		250			640		—		640
Residential construction	733		—			203		513			1,449		—		1,449
Commercial & multifamily residential:
Income property	388		—			1		326			715		—		715
Owner occupied	1,006		—			—		204			1,210		—		1,210
Consumer	3,531		(266		)	165		(62		)	3,368		15		3,353
Purchased credit impaired	13,726		(2,866		)	1,551		653			13,064		—		13,064
Unallocated	569		—			—		(569		)	—		—		—
Total	$	68,172	$	(6,905	)	$	2,743	$	5,254		$	69,264	$	2,515	$	66,749

	Beginning Balance		Charge-offs			Recoveries		Provision (Recovery)			Ending Balance		Specific Reserve		General Allocation
Three months ended March 31, 2015	(in thousands)
Commercial business:
Secured	$	25,923	$	(1,386	)	$	512	$	712		$	25,761	$	24	$	25,737
Unsecured	927		(40		)	106		19			1,012		—		1,012
Real estate:
One-to-four family residential	2,281		(8		)	12		(921		)	1,364		115		1,249
Commercial & multifamily residential:
Commercial land	799		—			—		28			827		—		827
Income property	9,159		—			3,252		(3,971		)	8,440		—		8,440
Owner occupied	5,007		—			9		596			5,612		24		5,588
Real estate construction:
One-to-four family residential:
Land and acquisition	1,197		—			2		(173		)	1,026		67		959
Residential construction	1,860		—			26		(96		)	1,790		—		1,790
Commercial & multifamily residential:
Income property	622		—			3		202			827		—		827
Owner occupied	434		—			—		65			499		—		499
Consumer	3,180		(891		)	273		273			2,835		—		2,835
Purchased credit impaired	16,336		(4,100		)	1,686		2,609			16,531		—		16,531
Unallocated	1,844		—			—		1,866			3,710		—		3,710
Total	$	69,569	$	(6,425	)	$	5,881	$	1,209		$	70,234	$	230	$	70,004

Changes in the Allowance for Unfunded Commitments and Letters of Credit

Changes in the allowance for unfunded commitments and letters of credit, a component of other liabilities in the consolidated balance sheet, are summarized as follows:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands)
Balance at beginning of period	$	2,930	$	2,655
Net changes in the allowance for unfunded commitments and letters of credit	—		—
Balance at end of period	$	2,930	$	2,655

Financing Receivable Credit Quality Indicators

The following is an analysis of the credit quality of our loan portfolio, excluding PCI loans, as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,185,283	$	54,957	$	63,792	$	—	$	—	$	2,304,032
Unsecured	91,737		277		562		—		—		92,576
Real estate:
One-to-four family residential	170,788		461		1,075		—		—		172,324
Commercial and multifamily residential:
Commercial land	213,936		4,804		423		—		—		219,163
Income property	1,306,718		6,394		11,351		—		—		1,324,463
Owner occupied	933,090		7,978		15,126		—		—		956,194
Real estate construction:
One-to-four family residential:
Land and acquisition	12,915		—		205		—		—		13,120
Residential construction	118,843		—		845		—		—		119,688
Commercial and multifamily residential:
Income property	86,584		—		—		—		—		86,584
Owner occupied	90,807		—		3,936		—		—		94,743
Consumer	313,249		—		7,946		—		—		321,195
Total	$	5,523,950	$	74,871	$	105,261	$	—	$	—	5,704,082
Less:
Allowance for loan and lease losses											56,200
Loans, excluding PCI loans, net											$	5,647,882

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
Loans, excluding PCI loans:
Commercial business:
Secured	$	2,146,729	$	59,746	$	56,217	$	—	$	—	$	2,262,692
Unsecured	93,347		278		1,323		—		—		94,948
Real estate:
One-to-four family residential	171,945		52		1,439		—		—		173,436
Commercial and multifamily residential:
Commercial land	207,768		4,966		424		—		—		213,158
Income property	1,296,043		5,889		8,847		—		—		1,310,779
Owner occupied	918,986		9,668		17,662		—		—		946,316
Real estate construction:
One-to-four family residential:
Land and acquisition	14,388		—		362		—		—		14,750
Residential construction	119,243		—		1,132		—		—		120,375
Commercial and multifamily residential:
Income property	83,634		—		—		—		—		83,634
Owner occupied	81,270		—		401		—		—		81,671
Consumer	328,286		—		4,076		—		—		332,362
Total	$	5,461,639	$	80,599	$	91,883	$	—	$	—	5,634,121
Less:
Allowance for loan and lease losses											54,446
Loans, excluding PCI loans, net											$	5,579,675

The following is an analysis of the credit quality of our PCI loan portfolio as of March 31, 2016 and December 31, 2015:

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
March 31, 2016	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,706	$	99	$	5,297	$	—	$	—	$	37,102
Unsecured	1,106		—		1		—		—		1,107
Real estate:
One-to-four family residential	23,766		—		2,000		—		—		25,766
Commercial and multifamily residential:
Commercial land	8,037		—		623		—		—		8,660
Income property	33,558		—		3,970		—		—		37,528
Owner occupied	52,487		—		1,709		—		—		54,196
Real estate construction:
One-to-four family residential:
Land and acquisition	1,143		—		315		—		—		1,458
Residential construction	414		—		328		—		—		742
Commercial and multifamily residential:
Income property	1,283		—		—		—		—		1,283
Owner occupied	526		—		—		—		—		526
Consumer	19,531		—		695		—		—		20,226
Total	$	173,557	$	99	$	14,938	$	—	$	—	188,594
Less:
Valuation discount resulting from acquisition accounting											15,393
Allowance for loan losses											13,064
PCI loans, net											$	160,137

	Pass		Special Mention		Substandard		Doubtful		Loss		Total
December 31, 2015	(in thousands)
PCI loans:
Commercial business:
Secured	$	31,468	$	101	$	5,995	$	—	$	—	$	37,564
Unsecured	1,218		—		2		—		—		1,220
Real estate:
One-to-four family residential	25,018		—		2,177		—		—		27,195
Commercial and multifamily residential:
Commercial land	8,234		—		664		—		—		8,898
Income property	36,426		—		5,916		—		—		42,342
Owner occupied	53,071		261		1,736		—		—		55,068
Real estate construction:
One-to-four family residential:
Land and acquisition	1,086		—		479		—		—		1,565
Residential construction	427		—		334		—		—		761
Commercial and multifamily residential:
Income property	1,303		—		—		—		—		1,303
Owner occupied	531		—		—		—		—		531
Consumer	20,122		—		781		—		—		20,903
Total	$	178,904	$	362	$	18,084	$	—	$	—	197,350
Less:
Valuation discount resulting from acquisition accounting											16,444
Allowance for loan losses											13,726
PCI loans, net											$	167,180

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Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2016

Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract]

Summary of Other Real Estate Owned

The following tables set forth activity in OREO for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance, beginning of period	$	13,738		$	22,190
Transfers in	105			4,692
Valuation adjustments	(137		)	(197		)
Proceeds from sale of OREO property	(1,326		)	(5,122		)
Gain on sale of OREO, net	47			1,736
Balance, end of period	$	12,427		$	23,299

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Covered Assets and FDIC Loss-sharing Asset (Tables)

3 Months Ended

Mar. 31, 2016

Covered Assets And FDIC Loss Sharing Asset [Line Items]

FDIC Loss-sharing Asset

The following table shows a detailed analysis of the FDIC loss-sharing asset for the three months ended March 31, 2016 and 2015:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Balance at beginning of period	$	6,568		$	15,174
Adjustments not reflected in income:
Cash (received from) paid to the FDIC, net	353			(659		)
FDIC reimbursable recoveries, net	136			(21		)
Adjustments reflected in income:
Amortization, net	(1,332		)	(2,294		)
Loan impairment	147			1,532
Sale of other real estate	144			(420		)
Write-downs of other real estate	18			1,071
Other	(80		)	261
Balance at end of period	$	5,954		$	14,644

Schedule of FDIC Loss-Sharing Agreements and Covered Assets [Table Text Block]

The following table presents information about the composition of the FDIC loss-sharing asset, the clawback liability, and the non-single family and the single family covered assets as of the date indicated:

	March 31, 2016
	Columbia River Bank		American Marine Bank		Summit Bank		First Heritage Bank		Total
	(in thousands)
FDIC loss-sharing asset	$	537	$	2,404	$	1,799	$	1,214	$	5,954
Clawback liability	$	3,420	$	1,264	$	—	$	734	$	5,418
Non-single family covered assets	$	66,682	$	11,321	$	8,381	$	14,779	$	101,163
Single family covered assets	$	7,764	$	22,561	$	6,046	$	1,735	$	38,106
Loss-sharing expiration dates:
Non-single family	First Quarter 2015		First Quarter 2015		Second Quarter 2016		Second Quarter 2016
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021
Loss recovery expiration dates:
Non-single family	First Quarter 2018		First Quarter 2018		Second Quarter 2019		Second Quarter 2019
Single family	First Quarter 2020		First Quarter 2020		Second Quarter 2021		Second Quarter 2021

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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets

The following table sets forth activity for goodwill and other intangible assets for the periods indicated:

	Three Months Ended March 31,
	2016			2015
	(in thousands)
Goodwill
Total goodwill	$	382,762		$	382,537
Other intangible assets, net
Core deposit intangible:
Gross core deposit intangible balance at beginning of period	58,598			58,598
Accumulated amortization at beginning of period	(35,940		)	(29,058		)
Core deposit intangible, net at beginning of period	22,658			29,540
CDI current period amortization	(1,583		)	(1,817		)
Total core deposit intangible, net at end of period	21,075			27,723
Intangible assets not subject to amortization	919			919
Other intangible assets, net at end of period	21,994			28,642
Total goodwill and other intangible assets at end of period	$	404,756		$	411,179

Estimated Future Amortization Expense of Core Deposit Intangibles

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2016 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2016	$	4,363
2017	4,913
2018	3,855
2019	2,951
2020	2,048

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Derivatives and Balance Sheet Offsetting (Tables)

3 Months Ended

Mar. 31, 2016

Derivative [Line Items]

Balance Sheet Offsetting [Table Text Block]

The following tables show the gross interest rate swap agreements and repurchase agreements in the consolidated balance sheets and the respective collateral received or pledged in the form of other financial instruments, which are generally marketable securities. The collateral amounts in these tables are limited to the outstanding balances of the related asset or liability. Therefore, instances of overcollateralization are not shown.

	Gross Amounts of Recognized Assets/Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets/Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset in the Consolidated Balance Sheets
							Collateral Posted			Net Amount
March 31, 2016	(in thousands)
Assets
Interest rate contracts	$	18,641	$	—	$	18,641	$	—		$	18,641
Liabilities
Interest rate contracts	$	18,689	$	—	$	18,689	$	(18,689	)	$	—
Repurchase agreements	$	73,839	$	—	$	73,839	$	(73,839	)	$	—
December 31, 2015
Assets
Interest rate contracts	$	12,438	$	—	$	12,438	$	—		$	12,438
Liabilities
Interest rate contracts	$	12,478	$	—	$	12,478	$	(12,478	)	$	—
Repurchase agreements	$	99,699	$	—	$	99,699	$	(99,699	)	$	—

Carrying Value of Securities Pledged As Collateral

The following table summarizes the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	March 31, 2016
	(in thousands)
Washington and Oregon State to secure public deposits	$	339,424
Federal Reserve Bank to secure borrowings	48,879
Other securities pledged	156,551
Total securities pledged as collateral	$	544,854

The following table presents the class of collateral pledged for repurchase agreements as well as the remaining contractual maturity of the repurchase agreements:

	Remaining contractual maturity of the agreements
	Overnight and continuous		Up to 30 days		30 - 90 days		Greater than 90 days		Total
March 31, 2016	(in thousands)
Class of collateral pledged for repurchase agreements
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	48,839	$	—	$	—	$	25,000	$	73,839
Gross amount of recognized liabilities for repurchase agreements									73,839
Amounts related to agreements not included in offsetting disclosure									$	—

Not Designated as Hedging Instrument [Member]

Derivative [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following table presents the fair value of derivatives not designated as hedging instruments at March 31, 2016 and December 31, 2015:

Asset Derivatives

Liability Derivatives

March 31, 2016

December 31, 2015

March 31, 2016

December 31, 2015

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

(in thousands)

Interest rate contracts

Other assets

$

18,641

Other assets

$

12,438

Other liabilities

$

18,689

Other liabilities

$

12,478

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Accumulated Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2016

Accumulated Other Comprehensive Income (Loss) [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table shows changes in accumulated other comprehensive income (loss) by component for the three month periods ended March 31, 2016 and 2015:

	Unrealized Gains and Losses on Available-for-Sale Securities (1)			Unrealized Gains and Losses on Pension Plan Liability (1)			Total (1)
Three months ended March 31, 2016	(in thousands)
Beginning balance	$	386		$	(6,681	)	$	(6,295	)
Other comprehensive income before reclassifications	18,770			—			18,770
Amounts reclassified from accumulated other comprehensive income (loss)	(238		)	106			(132		)
Net current-period other comprehensive income	18,532			106			18,638
Ending balance	$	18,918		$	(6,575	)	$	12,343
Three months ended March 31, 2015
Beginning balance	$	7,462		$	(1,841	)	$	5,621
Other comprehensive income (loss) before reclassifications	9,376			(280		)	9,096
Amounts reclassified from accumulated other comprehensive income (loss)	(459		)	28			(431		)
Net current-period other comprehensive income (loss)	8,917			(252		)	8,665
Ending balance	$	16,379		$	(2,093	)	$	14,286

__________

(1) All amounts are net of tax. Amounts in parenthesis indicate debits.

Schedule of reclassifications from accumulated other comprehensive income [Table Text Block]

The following table shows details regarding the reclassifications from accumulated other comprehensive income (loss) for the three month periods ended March 31, 2016 and 2015:

	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
	Three Months Ended March 31,						Affected line Item in the Consolidated
	2016			2015			Statement of Income
	(in thousands)
Unrealized gains and losses on available-for-sale securities
Investment securities gains	$	373		$	721		Investment securities gains, net
	373			721			Total before tax
	(135		)	(262		)	Income tax provision
	$	238		$	459		Net of tax
Amortization of pension plan liability
Actuarial losses	$	(167	)	$	(44	)	Compensation and employee benefits
	(167		)	(44		)	Total before tax
	61			16			Income tax benefit
	$	(106	)	$	(28	)	Net of tax

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Fair Value Accounting and Measurement (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Financial Assets And Liabilities Accounted For Fair Value On Recurring Basis

The following table sets forth the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis at March 31, 2016 and December 31, 2015 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement:

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
March 31, 2016	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,330,100	$	—	$	1,330,100	$	—
State and municipal debt securities	491,387		—		491,387		—
U.S. government agency and government-sponsored enterprise securities	358,941		—		358,941		—
U.S. government securities	547		547		—		—
Other securities	5,191		—		5,191		—
Total securities available for sale	$	2,186,166	$	547	$	2,185,619	$	—
Other assets (Interest rate contracts)	$	18,641	$	—	$	18,641	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	18,689	$	—	$	18,689	$	—

	Fair value		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
December 31, 2015	(in thousands)
Assets
Securities available for sale:
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	1,286,489	$	—	$	1,286,489	$	—
State and municipal debt securities	492,169		—		492,169		—
U.S. government agency and government-sponsored enterprise securities	353,782		—		353,782		—
U.S. government securities	20,137		20,137		—		—
Other securities	5,117		—		5,117		—
Total securities available for sale	$	2,157,694	$	20,137	$	2,137,557	$	—
Other assets (Interest rate contracts)	$	12,438	$	—	$	12,438	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	12,478	$	—	$	12,478	$	—

Financial Assets Accounted For Fair Value On Nonrecurring Basis

The following tables set forth information related to the Company’s assets that were measured using fair value estimates on a nonrecurring basis during the current and prior year quarterly periods:

	Fair value at March 31, 2016		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2016
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	10,681	$	—	$	—	$	10,681	$	2,676
OREO	2,553		—		—		2,553		137
	$	13,234	$	—	$	—	$	13,234	$	2,813

	Fair value at March 31, 2015		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2015
			Level 1		Level 2		Level 3
	(in thousands)
OREO	$	1,429	$	—	$	—	$	1,429	$	197
	$	1,429	$	—	$	—	$	1,429	$	197

Fair Value, by Balance Sheet Grouping

The following tables summarize carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value at March 31, 2016 and December 31, 2015:

	March 31, 2016
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	150,683	$	150,683	$	150,683	$	—	$	—
Interest-earning deposits with banks	38,248		38,248		38,248		—		—
Securities available for sale	2,186,166		2,186,166		547		2,185,619		—
FHLB stock	10,241		10,241		—		10,241		—
Loans held for sale	3,681		3,681		—		3,681		—
Loans	5,808,019		5,889,840		—		—		5,889,840
FDIC loss-sharing asset	5,954		1,613		—		—		1,613
Interest rate contracts	18,641		18,641		—		18,641		—
Liabilities
Deposits	$	7,596,949	$	7,593,830	$	7,162,893	$	430,937	$	—
FHLB Advances	6,521		7,459		—		7,459		—
Repurchase agreements	73,839		74,353		—		74,353		—
Interest rate contracts	18,689		18,689		—		18,689		—

	December 31, 2015
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
	(in thousands)
Assets
Cash and due from banks	$	166,929	$	166,929	$	166,929	$	—	$	—
Interest-earning deposits with banks	8,373		8,373		8,373		—		—
Securities available for sale	2,157,694		2,157,694		20,137		2,137,557		—
FHLB stock	12,722		12,722		—		12,722		—
Loans held for sale	4,509		4,509		—		4,509		—
Loans	5,746,855		5,752,423		—		—		5,752,423
FDIC loss-sharing asset	6,568		921		—		—		921
Interest rate contracts	12,438		12,438		—		12,438		—
Liabilities
Deposits	$	7,438,829	$	7,434,787	$	6,979,924	$	454,863	$	—
FHLB Advances	68,531		69,176		—		69,176		—
Repurchase agreements	99,699		100,346		—		100,346		—
Interest rate contracts	12,478		12,478		—		12,478		—

Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value Inputs, Assets, Quantitative Information

The range and weighted-average of the significant unobservable inputs used to fair value our Level 3 nonrecurring assets, along with the valuation techniques used, are shown in the following table:

	Fair value at March 31, 2016		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	10,681	Fair Market Value of Collateral	Adjustment to Stated Value	0% - 7% (6%)
OREO	2,553		Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for impaired loans and OREO because there were no adjustments made to the appraisal values or stated values during the current period.

	Fair value at March 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
OREO	$	1,429	Fair Market Value of Collateral	Adjustment to Appraisal Value	N/A (2)
(1) Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable, inventory and equipment).
(2) Quantitative disclosures are not provided for OREO because there were no adjustments made to the appraisal value during the current period.

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Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2016 and 2015:

	Three Months Ended
	March 31,
	2016		2015
	(in thousands except per share)
Basic EPS:
Net income	$	21,259	$	24,361
Less: Earnings allocated to participating securities:
Preferred shares	39		43
Nonvested restricted shares	247		225
Earnings allocated to common shareholders	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Basic earnings per common share	$	0.37	$	0.42
Diluted EPS:
Earnings allocated to common shareholders (1)	$	20,973	$	24,093
Weighted average common shares outstanding	57,114		56,965
Dilutive effect of equity awards	11		13
Weighted average diluted common shares outstanding	57,125		56,978
Diluted earnings per common share	$	0.37	$	0.42
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	27		53

__________

(1) Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options and warrants to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.

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Securities (Securities Available for Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	$ 2,156,999	$ 2,157,610
Available-for-sale Debt Securities Gross Unrealized Gain, instant	33,588	18,352
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(4,421)	(18,268)
Securities available for sale	2,186,166	2,157,694
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	1,319,714	1,296,955
Available-for-sale Debt Securities Gross Unrealized Gain, instant	14,247	4,525
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(3,861)	(14,991)
Securities available for sale	1,330,100	1,286,489
State and Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	477,544	480,417
Available-for-sale Debt Securities Gross Unrealized Gain, instant	14,257	12,690
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(414)	(938)
Securities available for sale	491,387	492,169
U.S. Government and Government-Sponsored Enterprise Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	353,910	354,515
Available-for-sale Debt Securities Gross Unrealized Gain, instant	5,031	1,113
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(1,846)
Securities available for sale	358,941	353,782
US Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	547	20,439
Available-for-sale Debt Securities Gross Unrealized Gain, instant	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(302)
Securities available for sale	547	20,137
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	5,284	5,284
Available-for-sale Debt Securities Gross Unrealized Gain, instant	53	24
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(146)	(191)
Securities available for sale	$ 5,191	$ 5,117

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Securities (Schedule of Contractual Maturities of Investment Securities Available for Sale) (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Available-for-sale Securities [Abstract]
Due within one year, Amortized Cost	$ 39,056
Due after one year through five years, Amortized Cost	435,423
Due after five years through ten years, Amortized Cost	711,190
Due after ten years, Amortized Cost	966,046
No stated maturity date, Amortized Cost Basis	5,284
Total investment securities available-for-sale, Amortized Cost	2,156,999
Due within one year, Fair Value	39,243
Due after one year through five years, Fair Value	440,733
Due after five years through ten years, Fair Value	723,977
Due after ten years, Fair Value	977,022
No stated maturity date, Fair Value	5,191
Total investment securities available-for-sale, Fair Value	$ 2,186,166

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Securities (Carrying Value of Securities Pledged as Collateral) (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	$ 544,854
Washington and Oregon State Public Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	339,424
Federal Reserve Bank Advances [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	48,879
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	$ 156,551

XML

Securities (Summary of Gross Unrealized Losses and Fair Value of the Investments with Unrealized Losses) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	$ 33,588	$ 18,352
Less than 12 Months Fair Value	125,078	918,813
Less than 12 Months Unrealized Losses	(658)	(9,247)
12 Months or More Fair Value	213,295	298,316
12 Months or More Unrealized Losses	(3,763)	(9,021)
Total Fair Value	338,373	1,217,129
Total Unrealized Losses	(4,421)	(18,268)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	4,421	18,268
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	14,247	4,525
Less than 12 Months Fair Value	95,313	664,509
Less than 12 Months Unrealized Losses	(533)	(7,610)
12 Months or More Fair Value	190,975	214,325
12 Months or More Unrealized Losses	(3,328)	(7,381)
Total Fair Value	286,288	878,834
Total Unrealized Losses	(3,861)	(14,991)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	3,861	14,991
State and Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	14,257	12,690
Less than 12 Months Fair Value	25,702	48,261
Less than 12 Months Unrealized Losses	(125)	(358)
12 Months or More Fair Value	19,010	31,383
12 Months or More Unrealized Losses	(289)	(580)
Total Fair Value	44,712	79,644
Total Unrealized Losses	(414)	(938)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	414	938
US Government Corporations and Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	5,031	1,113
Less than 12 Months Fair Value	4,063	193,400
Less than 12 Months Unrealized Losses	0	(1,128)
12 Months or More Fair Value	500	40,034
12 Months or More Unrealized Losses	0	(718)
Total Fair Value	4,563	233,434
Total Unrealized Losses	0	(1,846)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	1,846
US Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	0	0
Less than 12 Months Fair Value		10,343
Less than 12 Months Unrealized Losses		(136)
12 Months or More Fair Value		9,794
12 Months or More Unrealized Losses		(166)
Total Fair Value		20,137
Total Unrealized Losses		(302)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	302
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities Gross Unrealized Gain, instant	53	24
Less than 12 Months Fair Value	0	2,300
Less than 12 Months Unrealized Losses	0	(15)
12 Months or More Fair Value	2,810	2,780
12 Months or More Unrealized Losses	(146)	(176)
Total Fair Value	2,810	5,080
Total Unrealized Losses	(146)	(191)
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	$ 146	$ 191

XML

Securities (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) security	Mar. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds | $	$ 38.9	$ 57.2
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	74
Number Of Securities In Continuous Loss Position For Twelve Months or More	45
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	40
Number Of Securities In Continuous Loss Position For Twelve Months or More	20
U.S. Government and Government-Sponsored Enterprise Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	2
Number Of Securities In Continuous Loss Position For Twelve Months or More	1
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number Of Securities In Continuous Loss Position For Twelve Months or More	1

XML

Securities Securities (Summary of Gross Realized Gains and Gross Realized Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, Gross Realized Gains	$ 373	$ 730
Available-for-sale Securities, Gross Realized Losses	0	(9)
Investment securities gains, net	$ 373	$ 721

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Loans (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Loans to related parties	$ 9,900	$ 10,000
Loans and Leases Receivable, Related Parties, Additions	55
Repayments on related party loans	$ 100
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0
Loans Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 2,210,000	2,220,000
Federal Reserve Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 50,200	$ 50,100

XML

Loans (Analysis of Loan Portfolio by Major Types of Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Less: unearned income on loans	$ (39,410)	$ (42,373)
Recorded Investment	5,877,283	5,815,027
Allowance for loan losses	(69,264)	(68,172)	$ (70,234)	$ (69,569)
Loans, net	5,808,019	5,746,855
Loans held for sale	3,681	4,509
Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Less: unearned income on loans	(39,410)	(42,373)
Recorded Investment	5,704,082	5,634,121
Allowance for loan losses	(56,200)	(54,446)
Loans, net	5,647,882	5,579,675
Loans held for sale	3,681	4,509
Loans and Leases Receivable, Gross	5,704,082	5,634,121
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Less: unearned income on loans	0	0
Recorded Investment	173,201	180,906
Allowance for loan losses	(13,064)	(13,726)
Loans, net	160,137	167,180
Loans held for sale	0	0
Loans and Leases Receivable, Gross	188,594	197,350
Acquisition Accounting Valuation Discount on Covered Loans	15,393	16,444
Commercial and Multifamily Residential Construction [Domain] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	1,809	1,834
One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	197,770	200,233
Loans and Leases Receivable, Gross, Consumer, Construction	135,610	138,152
Allowance for loan losses	(654)	(916)	(1,364)	(2,281)
One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	175,050	176,295
Loans and Leases Receivable, Gross, Consumer, Construction	133,447	135,874
Loans and Leases Receivable, Gross	172,324	173,436
One-to-Four Family Residential [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	22,720	23,938
Loans and Leases Receivable, Gross, Consumer, Construction	2,163	2,278
Loans and Leases Receivable, Gross	25,766	27,195
Commercial and Multifamily Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial, Mortgage	2,614,331	2,591,125
Loans Receivable, Gross, Commercial, Construction	185,166	169,043
Commercial and Multifamily Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial, Mortgage	2,520,352	2,491,736
Loans Receivable, Gross, Commercial, Construction	183,548	167,413
Commercial and Multifamily Residential [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial, Mortgage	93,979	99,389
Loans Receivable, Gross, Commercial, Construction	1,618	1,630
Loans and Leases Receivable, Gross	100,384	106,308
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial and Industrial	2,435,667	2,397,423
Commercial Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial and Industrial	2,401,193	2,362,575
Commercial Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial and Industrial	34,474	34,848
Loans and Leases Receivable, Gross	38,209	38,784
Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Mortgage	2,812,101	2,791,358
Real Estate Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Mortgage	2,695,402	2,668,031
Real Estate Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Mortgage	116,699	123,327
Loans and Leases Receivable, Gross	126,150	133,503
One-to-Four Family Residential Construction [Domain] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross	2,200	2,326
Real Estate Construction Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Construction	320,776	307,195
Real Estate Construction Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Construction	316,995	303,287
Real Estate Construction Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Construction	3,781	3,908
Loans and Leases Receivable, Gross	4,009	4,160
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer	348,149	361,424
Allowance for loan losses	(3,368)	(3,531)	$ (2,835)	$ (3,180)
Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer	329,902	342,601
Loans and Leases Receivable, Gross	321,195	332,362
Consumer Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer	18,247	18,823
Loans and Leases Receivable, Gross	$ 20,226	$ 20,903

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Loans (Analysis of Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	$ 36,891	$ 21,464
Unpaid Principal Balance Nonaccrual Loans	49,756	32,263
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	4,717	766
Unpaid Principal Balance Nonaccrual Loans	4,985	990
Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	22,452	9,395
Unpaid Principal Balance Nonaccrual Loans	31,039	15,688
Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	107	42
Unpaid Principal Balance Nonaccrual Loans	331	256
One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	730	820
Unpaid Principal Balance Nonaccrual Loans	1,702	1,866
Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	238	349
Unpaid Principal Balance Nonaccrual Loans	247	332
Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	2,897	2,843
Unpaid Principal Balance Nonaccrual Loans	3,185	3,124
Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	4,982	6,321
Unpaid Principal Balance Nonaccrual Loans	7,473	8,943
Land And Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	205	362
Unpaid Principal Balance Nonaccrual Loans	231	385
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment Nonaccrual Loans	563	566
Unpaid Principal Balance Nonaccrual Loans	$ 563	$ 679

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Loans (Analysis of the Aged Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	$ 36,891	$ 21,464
Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	5,654,442	5,592,208
Past Due Loans	12,749	20,449
Nonaccrual Loans	36,891	21,464
Loans Receivable, Net	5,704,082	5,634,121
Secured Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	22,452	9,395
Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	2,277,121	2,241,069
Past Due Loans	4,459	12,228
Nonaccrual Loans	22,452	9,395
Loans Receivable, Net	2,304,032	2,262,692
Unsecured Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	107	42
Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	91,785	94,867
Past Due Loans	684	39
Nonaccrual Loans	107	42
Loans Receivable, Net	92,576	94,948
One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	730	820
One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	170,846	170,913
Past Due Loans	748	1,703
Nonaccrual Loans	730	820
Loans Receivable, Net	172,324	173,436
Commercial Land [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	238	349
Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	218,925	212,740
Past Due Loans	0	69
Nonaccrual Loans	238	349
Loans Receivable, Net	219,163	213,158
Income Property Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	2,897	2,843
Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	1,321,566	1,305,502
Past Due Loans	0	2,434
Nonaccrual Loans	2,897	2,843
Loans Receivable, Net	1,324,463	1,310,779
Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	4,982	6,321
Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	946,635	939,396
Past Due Loans	4,577	599
Nonaccrual Loans	4,982	6,321
Loans Receivable, Net	956,194	946,316
Land And Acquisition [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	205	362
Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	12,915	14,388
Past Due Loans	0	0
Nonaccrual Loans	205	362
Loans Receivable, Net	13,120	14,750
Residential Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	563	566
Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	119,125	119,809
Past Due Loans	0	0
Nonaccrual Loans	563	566
Loans Receivable, Net	119,688	120,375
Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	86,584	83,634
Past Due Loans	0	0
Nonaccrual Loans	0	0
Loans Receivable, Net	86,584	83,634
Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	94,743	81,671
Past Due Loans	0	0
Nonaccrual Loans	0	0
Loans Receivable, Net	94,743	81,671
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual Loans	4,717	766
Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	314,197	328,219
Past Due Loans	2,281	3,377
Nonaccrual Loans	4,717	766
Loans Receivable, Net	321,195	332,362
Financing Receivables, 60 to 89 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,113	2,147
Financing Receivables, 60 to 89 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	311	617
Financing Receivables, 60 to 89 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	62	66
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	684
Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	740	780
Financing Receivables, 30 to 59 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	11,636	18,302
Financing Receivables, 30 to 59 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	4,148	11,611
Financing Receivables, 30 to 59 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	684	39
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	686	1,637
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	69
Financing Receivables, 30 to 59 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	1,750
Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	4,577	599
Financing Receivables, 30 to 59 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	1,541	2,597
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due Loans	$ 0	$ 0

XML

Loans (Analysis of Impaired Loans) (Details) - Loans, Excluding Purchased Credit Impaired Loans [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	$ 5,675,267		$ 5,618,041
Recorded Investment of Loans Individually Measured for Specific Impairment	28,815		16,080
Recorded Investment	16,939		14,726
Unpaid Principal Balance	25,584		19,547
Related Allowance	2,515		653
Average Recorded Investment Impaired Loans	22,448	$ 27,596
Interest Recognized on Impaired Loans	36	267
Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	2,285,351		2,257,168
Recorded Investment of Loans Individually Measured for Specific Impairment	18,681		5,524
Recorded Investment	11,861		690
Unpaid Principal Balance	11,996		718
Related Allowance	2,500		321
Average Recorded Investment Impaired Loans	12,103	10,698
Interest Recognized on Impaired Loans	17	7
Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	92,576		94,948
Recorded Investment of Loans Individually Measured for Specific Impairment	0		0
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Average Recorded Investment Impaired Loans	0	1
Interest Recognized on Impaired Loans	0	0
One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	171,660		172,150
Recorded Investment of Loans Individually Measured for Specific Impairment	664		1,286
Recorded Investment	0		314
Unpaid Principal Balance	0		339
Related Allowance	0		314
Average Recorded Investment Impaired Loans	975	3,162
Interest Recognized on Impaired Loans	6	13
Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	219,163		213,158
Recorded Investment of Loans Individually Measured for Specific Impairment	0		0
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Average Recorded Investment Impaired Loans	0	235
Interest Recognized on Impaired Loans	0	0
Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	1,322,410		1,308,673
Recorded Investment of Loans Individually Measured for Specific Impairment	2,053		2,106
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Average Recorded Investment Impaired Loans	2,080	4,168
Interest Recognized on Impaired Loans	3	10
Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	951,216		940,261
Recorded Investment of Loans Individually Measured for Specific Impairment	4,978		6,055
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Average Recorded Investment Impaired Loans	5,516	7,938
Interest Recognized on Impaired Loans	7	234
Land And Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	12,810		14,283
Recorded Investment of Loans Individually Measured for Specific Impairment	310		467
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Average Recorded Investment Impaired Loans	388	544
Interest Recognized on Impaired Loans	1	1
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	119,126		119,813
Recorded Investment of Loans Individually Measured for Specific Impairment	562		562
Recorded Investment	0		335
Unpaid Principal Balance	0		335
Related Allowance	0		3
Average Recorded Investment Impaired Loans	562	446
Interest Recognized on Impaired Loans	0	0
Income Property Multifamily Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	86,584		83,634
Recorded Investment of Loans Individually Measured for Specific Impairment	0		0
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Owner Occupied Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	94,743		81,671
Recorded Investment of Loans Individually Measured for Specific Impairment	0		0
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Related Allowance	0		0
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	319,628		332,282
Recorded Investment of Loans Individually Measured for Specific Impairment	1,567		80
Recorded Investment	15		15
Unpaid Principal Balance	15		15
Related Allowance	15		15
Average Recorded Investment Impaired Loans	824	404
Interest Recognized on Impaired Loans	2	$ 2
Impaired Loans With Recorded Allowance [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	11,876		1,354
Unpaid Principal Balance	12,011		1,407
Impaired Loans Without Recorded Allowance [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	6,820		4,834
Unpaid Principal Balance	12,314		6,455
Impaired Loans Without Recorded Allowance [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Impaired Loans Without Recorded Allowance [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	664		972
Unpaid Principal Balance	1,093		1,397
Impaired Loans Without Recorded Allowance [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Impaired Loans Without Recorded Allowance [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	2,053		2,106
Unpaid Principal Balance	2,257		2,311
Impaired Loans Without Recorded Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	4,978		6,055
Unpaid Principal Balance	7,390		8,528
Impaired Loans Without Recorded Allowance [Member] | Land And Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	310		467
Unpaid Principal Balance	334		490
Impaired Loans Without Recorded Allowance [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	562		227
Unpaid Principal Balance	562		227
Impaired Loans Without Recorded Allowance [Member] | Income Property Multifamily Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Impaired Loans Without Recorded Allowance [Member] | Owner Occupied Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0		0
Unpaid Principal Balance	0		0
Impaired Loans Without Recorded Allowance [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,552		65
Unpaid Principal Balance	$ 1,634		$ 139

XML

Loans Loans (Analysis of Troubled Debt Restructurings) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Modifications	Mar. 31, 2015 USD ($) Modifications	Dec. 31, 2015 USD ($)
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Additional Commitment To Lend	$ 7		$ 0
Loans, Excluding Purchased Credit Impaired Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Modifications	8	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 2,117	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2,117	$ 0
Loans, Excluding Purchased Credit Impaired Loans [Member] | Secured Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Modifications	3	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 1,370	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1,370	$ 0
Loans, Excluding Purchased Credit Impaired Loans [Member] | Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Modifications	1	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 250	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 250	$ 0
Loans, Excluding Purchased Credit Impaired Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts | Modifications	4	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 497	$ 0
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 497	$ 0

XML

Loans Loans (Analysis of Purchased Credit Impaired Loans - Accretable Yield Rollforward) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Loans, Analysis of Purchased Credit Impaired Loans, Accretable Yield Rollforward [Abstract]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield	$ 56,607	$ 68,726	$ 58,981	$ 73,849
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion	4,229	6,319
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Disposals of Loans	(94)	1,093
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference	$ 1,761	$ 2,289

XML

Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for loan and lease losses	$ 5,254	$ 1,209
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of unallocated loan amount	5.00%

XML

Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 68,172	$ 69,569
Charged-offs	(6,905)	(6,425)
Recoveries	2,743	5,881
Provision for loan and lease losses	5,254	1,209
Ending balance	69,264	70,234
Specific Reserve	2,515	230
General Allocation	66,749	70,004
Secured Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	32,321	25,923
Charged-offs	(3,770)	(1,386)
Recoveries	611	512
Provision for loan and lease losses	2,952	712
Ending balance	32,114	25,761
Specific Reserve	2,500	24
General Allocation	29,614	25,737
Unsecured Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,299	927
Charged-offs	(3)	(40)
Recoveries	51	106
Provision for loan and lease losses	(47)	19
Ending balance	1,300	1,012
Specific Reserve	0	0
General Allocation	1,300	1,012
One-to-Four Family Residential [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	916	2,281
Charged-offs	0	(8)
Recoveries	41	12
Provision for loan and lease losses	(303)	(921)
Ending balance	654	1,364
Specific Reserve	0	115
General Allocation	654	1,249
Commercial Land [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,178	799
Charged-offs	0	0
Recoveries	0	0
Provision for loan and lease losses	84	28
Ending balance	1,262	827
Specific Reserve	0	0
General Allocation	1,262	827
Income Property Multifamily [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	6,616	9,159
Charged-offs	0	0
Recoveries	61	3,252
Provision for loan and lease losses	725	(3,971)
Ending balance	7,402	8,440
Specific Reserve	0	0
General Allocation	7,402	8,440
Owner Occupied [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,550	5,007
Charged-offs	0	0
Recoveries	8	9
Provision for loan and lease losses	528	596
Ending balance	6,086	5,612
Specific Reserve	0	24
General Allocation	6,086	5,588
Land And Acquisition [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	339	1,197
Charged-offs	0	0
Recoveries	51	2
Provision for loan and lease losses	250	(173)
Ending balance	640	1,026
Specific Reserve	0	67
General Allocation	640	959
Residential Construction [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	733	1,860
Charged-offs	0	0
Recoveries	203	26
Provision for loan and lease losses	513	(96)
Ending balance	1,449	1,790
Specific Reserve	0	0
General Allocation	1,449	1,790
Income Property Multifamily Construction [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	388	622
Charged-offs	0	0
Recoveries	1	3
Provision for loan and lease losses	326	202
Ending balance	715	827
Specific Reserve	0	0
General Allocation	715	827
Owner Occupied Construction [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,006	434
Charged-offs	0	0
Recoveries	0	0
Provision for loan and lease losses	204	65
Ending balance	1,210	499
Specific Reserve	0	0
General Allocation	1,210	499
Consumer Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,531	3,180
Charged-offs	(266)	(891)
Recoveries	165	273
Provision for loan and lease losses	(62)	273
Ending balance	3,368	2,835
Specific Reserve	15	0
General Allocation	3,353	2,835
Purchased Credit Impaired Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	13,726	16,336
Charged-offs	(2,866)	(4,100)
Recoveries	1,551	1,686
Provision for loan and lease losses	653	2,609
Ending balance	13,064	16,531
Specific Reserve	0	0
General Allocation	13,064	16,531
Unallocated Financing Receivables [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	569	1,844
Charged-offs	0	0
Recoveries	0	0
Provision for loan and lease losses	(569)	1,866
Ending balance	0	3,710
Specific Reserve	0	0
General Allocation	$ 0	$ 3,710

XML

Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Changes in the Allowance for Unfunded Commitments and Letters of Credit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Allowance For Loan And Lease Losses And Unfunded Loan Commitments And Letters Of Credit
Beginning balance	$ 2,930	$ 2,655
Allowance for Loan and Lease Losses, Net Changes In Unfunded Commitments and Letters Of Credit Allowance	0	0
Ending balance	$ 2,930	$ 2,655

XML

Allowance for Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Analysis of Credit Quality of the Loan Portfolio) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	$ 69,264	$ 68,172	$ 70,234	$ 69,569
Loans, net	5,808,019	5,746,855
Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	5,704,082	5,634,121
Less: allowance for loan and lease losses	56,200	54,446
Loans, net	5,647,882	5,579,675
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	188,594	197,350
Acquisition Accounting Valuation Discount on Purchased Credit Impaired Loans	15,393	16,444
Less: allowance for loan and lease losses	13,064	13,726
Loans, net	160,137	167,180
Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	5,523,950	5,461,639
Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	173,557	178,904
Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	74,871	80,599
Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	99	362
Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	105,261	91,883
Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	14,938	18,084
Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Secured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	32,114	32,321	25,761	25,923
Secured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,304,032	2,262,692
Secured Loans [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	37,102	37,564
Secured Loans [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,185,283	2,146,729
Secured Loans [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	31,706	31,468
Secured Loans [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	54,957	59,746
Secured Loans [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	99	101
Secured Loans [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	63,792	56,217
Secured Loans [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	5,297	5,995
Secured Loans [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Secured Loans [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Secured Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Secured Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unsecured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	1,300	1,299	1,012	927
Unsecured Loans [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	92,576	94,948
Unsecured Loans [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,107	1,220
Unsecured Loans [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	91,737	93,347
Unsecured Loans [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,106	1,218
Unsecured Loans [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	277	278
Unsecured Loans [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unsecured Loans [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	562	1,323
Unsecured Loans [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1	2
Unsecured Loans [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unsecured Loans [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unsecured Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Unsecured Loans [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
One-to-Four Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	654	916	1,364	2,281
One-to-Four Family Residential [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	172,324	173,436
One-to-Four Family Residential [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	25,766	27,195
One-to-Four Family Residential [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	170,788	171,945
One-to-Four Family Residential [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	23,766	25,018
One-to-Four Family Residential [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	461	52
One-to-Four Family Residential [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
One-to-Four Family Residential [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,075	1,439
One-to-Four Family Residential [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,000	2,177
One-to-Four Family Residential [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
One-to-Four Family Residential [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
One-to-Four Family Residential [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
One-to-Four Family Residential [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Commercial Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	1,262	1,178	827	799
Commercial Land [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	219,163	213,158
Commercial Land [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	8,660	8,898
Commercial Land [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	213,936	207,768
Commercial Land [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	8,037	8,234
Commercial Land [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	4,804	4,966
Commercial Land [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Commercial Land [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	423	424
Commercial Land [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	623	664
Commercial Land [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Commercial Land [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Commercial Land [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Commercial Land [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	7,402	6,616	8,440	9,159
Income Property Multifamily [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,324,463	1,310,779
Income Property Multifamily [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	37,528	42,342
Income Property Multifamily [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,306,718	1,296,043
Income Property Multifamily [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	33,558	36,426
Income Property Multifamily [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	6,394	5,889
Income Property Multifamily [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	11,351	8,847
Income Property Multifamily [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,970	5,916
Income Property Multifamily [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	6,086	5,550	5,612	5,007
Owner Occupied [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	956,194	946,316
Owner Occupied [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	54,196	55,068
Owner Occupied [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	933,090	918,986
Owner Occupied [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	52,487	53,071
Owner Occupied [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	7,978	9,668
Owner Occupied [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	261
Owner Occupied [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	15,126	17,662
Owner Occupied [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,709	1,736
Owner Occupied [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	640	339	1,026	1,197
Land And Acquisition [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	13,120	14,750
Land And Acquisition [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,458	1,565
Land And Acquisition [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	12,915	14,388
Land And Acquisition [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,143	1,086
Land And Acquisition [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	205	362
Land And Acquisition [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	315	479
Land And Acquisition [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Land And Acquisition [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	1,449	733	1,790	1,860
Residential Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	119,688	120,375
Residential Construction [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	742	761
Residential Construction [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	118,843	119,243
Residential Construction [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	414	427
Residential Construction [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	845	1,132
Residential Construction [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	328	334
Residential Construction [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Residential Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	715	388	827	622
Income Property Multifamily Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	86,584	83,634
Income Property Multifamily Construction [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,283	1,303
Income Property Multifamily Construction [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	86,584	83,634
Income Property Multifamily Construction [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,283	1,303
Income Property Multifamily Construction [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Income Property Multifamily Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	1,210	1,006	499	434
Owner Occupied Construction [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	94,743	81,671
Owner Occupied Construction [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	526	531
Owner Occupied Construction [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	90,807	81,270
Owner Occupied Construction [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	526	531
Owner Occupied Construction [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,936	401
Owner Occupied Construction [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Owner Occupied Construction [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: allowance for loan and lease losses	3,368	3,531	$ 2,835	$ 3,180
Consumer Portfolio Segment [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	321,195	332,362
Consumer Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	20,226	20,903
Consumer Portfolio Segment [Member] | Pass [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	313,249	328,286
Consumer Portfolio Segment [Member] | Pass [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	19,531	20,122
Consumer Portfolio Segment [Member] | Special Mention [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member] | Special Mention [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member] | Substandard [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	7,946	4,076
Consumer Portfolio Segment [Member] | Substandard [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	695	781
Consumer Portfolio Segment [Member] | Doubtful [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member] | Doubtful [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Loans, Excluding Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	0	0
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	$ 0	$ 0

XML

Other Real Estate Owned (Summary of Other Real Estate Owned) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other Real Estate Owned [Line Items]
Balance, beginning of period	$ 13,738	$ 22,190
Transfers in	105	4,692
Valuation adjustments	(137)	(197)
Proceeds from Sale of OREO Property	1,326	5,122
Gain on sale of OREO, net	47	1,736
Total OREO, end of period	12,427	$ 23,299
Mortgage Loans in Process of Foreclosure, Amount	1,300
One-to-Four Family Residential [Member]
Other Real Estate Owned [Line Items]
Total OREO, end of period	$ 2,200

XML

Covered Assets and FDIC Loss-sharing Asset (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Amount of Estimated Clawback Liability	$ 5,418
Payment Of Clawback If Losses Less Than Stated Levels, Period After Acquisition	10 years 45 days
Federal deposit insurance corporation loss-sharing indemnified assets	$ 4,600
Federal deposit insurance corporation loss-sharing indemnified assets receivable	$ 1,400
Maximum [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Loss Sharing Agreement Effective Years	10 years
Loss Recovery Provision Effective Years	10 years
Minimum [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Loss Sharing Agreement Effective Years	5 years
Loss Recovery Provision Effective Years	8 years
Covered Loans [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Percentage of loss shared by FDIC	80.00%
FDIC Percentage Of Loss Recoveries	80.00%
Percentage of loss shared by FDIC When Loss Share Thresholds Met	95.00%
Percentage Of Loss Recoveries Shared By FDIC When Loss Share Thresholds Met	95.00%

XML

Covered Assets and FDIC Loss-sharing Asset (FDIC Loss-sharing Asset) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at beginning of period	$ 6,568	$ 15,174
Cash (received from) paid to the FDIC, net	(353)	(659)
FDIC reimbursable losses, net	136	(21)
Amortization, net	(1,332)	(2,294)
Loan impairment	147	1,532
Sale of other real estate	(144)	(420)
Write-downs of other real estate	18	1,071
Other	80	(261)
Balance at end of period	5,954	$ 14,644
Amount of Estimated Clawback Liability	5,418
Non-Single Family Covered Assets	101,163
Single Family Covered Assets	38,106
Columbia River Bank [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at end of period	537
Amount of Estimated Clawback Liability	3,420
Non-Single Family Covered Assets	66,682
Single Family Covered Assets	7,764
American Marine Bank [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at end of period	2,404
Amount of Estimated Clawback Liability	1,264
Non-Single Family Covered Assets	11,321
Single Family Covered Assets	22,561
Summit Bank [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at end of period	1,799
Amount of Estimated Clawback Liability	0
Non-Single Family Covered Assets	8,381
Single Family Covered Assets	6,046
First Heritage Bank [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance at end of period	1,214
Amount of Estimated Clawback Liability	734
Non-Single Family Covered Assets	14,779
Single Family Covered Assets	$ 1,735

XML

Goodwill and Intangible Assets (Schedule of Goodwill and Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets [Roll Forward]
Total goodwill, beginning of period	$ 382,762
Total goodwill, end of period	382,762	$ 382,537
CDI current period amortization	(1,583)	(1,817)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	919	919
Other intangible assets, net	21,994	28,642	$ 23,577
Total goodwill and intangible assets, end of period	$ 404,756	411,179
Core Deposits [Member]
Goodwill and Intangible Assets [Line Items]
Estimated life of CDI, in years	10 years
Goodwill and Intangible Assets [Roll Forward]
Gross core deposit intangible balance, beginning of period			58,598	$ 58,598
Accumulated amortization at beginning of period			$ (35,940)	$ (29,058)
Core deposit intangible, net, beginning of period	$ 22,658	29,540
CDI current period amortization	(1,583)	(1,817)
Total core deposit intangible, end of period	$ 21,075	$ 27,723

XML

Goodwill and Intangible Assets (Estimated Future Amortization Expense of Core Deposit Intangibles) (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Future Amortization Expense For Core Deposit Intangibles
2015	$ 4,363
2016	4,913
2017	3,855
2018	2,951
2019	$ 2,048

XML

Derivatives and Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	$ 8	$ (5)
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	73,839
Secured Borrowings, Gross, Difference, Amount	0
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Derivative [Line Items]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	73,839
Maturity Overnight [Member] | U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Derivative [Line Items]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	48,839
Maturity Less than 30 Days [Member] | U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Derivative [Line Items]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	0
Maturity 30 to 90 Days [Member] | U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Derivative [Line Items]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	0
Maturity Greater than 90 Days [Member] | U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Derivative [Line Items]
Secured Borrowings, Gross Including Not Subject to Master Netting Arrangement	25,000
Not Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	267,500		$ 264,400
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Fair value of asset derivative instruments	18,641		12,438
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Fair value of liability derivative instruments	$ 18,689		$ 12,478

XML

Derivatives and Balance Sheet Offsetting Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Balance Sheet Offsetting [Line Items]
Repurchase agreements, amounts offset in balance sheet	$ 0	$ 0
Repurchase agreements, net amount presented in statement of financial position	73,839	99,699
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities	(73,839)	(99,699)
Securities sold under agreements to repurchase, amount not offset	0	0
Interest Rate Contracts [Member]
Balance Sheet Offsetting [Line Items]
Derivative Assets, Gross Amounts Offset in the Balance Sheets	0	0
Derivative Asset	18,641	12,438
Derivative, Collateral, Obligation to Return Securities	0	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	18,641	12,438
Derivative Liability, Gross Amounts Offset in Balance Sheets	0	0
Derivative Liability	18,689	12,478
Derivative, Collateral, Right to Reclaim Securities	(18,689)	(12,478)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	0	0
Available-for-sale Securities [Member]
Balance Sheet Offsetting [Line Items]
Securities Sold under Agreements to Repurchase, Gross	73,839	99,699
Not Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member] | Other Assets [Member]
Balance Sheet Offsetting [Line Items]
Fair value of asset derivative instruments	18,641	12,438
Not Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member] | Other Liabilities [Member]
Balance Sheet Offsetting [Line Items]
Fair value of liability derivative instruments	$ 18,689	$ 12,478

XML

Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Commitments to Extend Credit [Member]
Other Commitments [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability	$ 1,960.0	$ 1,930.0
Standby Letters of Credit [Member]
Other Commitments [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability	46.9	38.7
Commercial Letter of Credit and other off-balance sheet liabilities [Member]
Other Commitments [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability	$ 5.6	$ 5.0

XML

Shareholders' Equity (Details) - $ / shares	Apr. 27, 2016	Jan. 28, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Declared quarterly cash dividend		$ 0.18
Special Dividends Payable, Amount Per Share		$ 0.20
Dividend Declared [Member]
Subsequent Event [Line Items]
Declared quarterly cash dividend	$ 0.19
Special Dividends Payable, Amount Per Share	$ 0.18
Preferred Stock [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues			8,782	8,782	8,782	8,782

XML

Shareholders' Equity Narrative (Details)	Mar. 31, 2016 shares
Shareholders' Equity [Abstract]
Preferred Stock Converted Into Common Stock, Shares	102,363

XML

Accumulated Other Comprehensive Income (Changes in AOCI by Component) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	[1]	$ (6,295)	$ 5,621
Other comprehensive income before reclassifications	[1]	18,770	9,096
Amounts reclassified from accumulated other comprehensive income (loss) (2)	[1]	(132)	(431)
Net current-period other comprehensive income	[1]	18,638	8,665
Ending balance	[1]	12,343	14,286
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	[1]	386	7,462
Other comprehensive income before reclassifications	[1]	18,770	9,376
Amounts reclassified from accumulated other comprehensive income (loss) (2)	[1]	(238)	(459)
Net current-period other comprehensive income	[1]	18,532	8,917
Ending balance	[1]	18,918	16,379
Unrealized Gains and Losses on Pension Plan Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	[1]	(6,681)	(1,841)
Other comprehensive income before reclassifications	[1]	0	(280)
Amounts reclassified from accumulated other comprehensive income (loss) (2)	[1]	106	28
Net current-period other comprehensive income	[1]	106	(252)
Ending balance	[1]	$ (6,575)	$ (2,093)

[1] All amounts are net of tax. Amounts in parenthesis indicate debits.

XML

Accumulated Other Comprehensive Income (Reclassification out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains, net	$ 373	$ 721
Compensation and employee benefits	36,319	39,100
Total before tax	30,488	35,188
Income tax provision	(9,229)	(10,827)
Net income	21,259	24,361
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities gains, net	373	721
Total before tax	373	721
Income tax provision	(135)	(262)
Net income	238	459
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains and Losses on Pension Plan Liability [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Compensation and employee benefits	(167)	(44)
Total before tax	(167)	(44)
Income tax provision	61	16
Net income	$ (106)	$ (28)

XML

Fair Value Accounting and Measurement (Financial Assets And Liabilities Accounted for Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 2,186,166	$ 2,157,694
Fair Value, Level 2 to level 1 Transfers, Amount	0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 2,186,166	2,157,694
Other assets (Interest rate contracts)	18,641	12,438
Other liabilities (Interest rate contracts)	18,689	12,478
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	547	20,137
Other assets (Interest rate contracts)	0	0
Other liabilities (Interest rate contracts)	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,185,619	2,137,557
Other assets (Interest rate contracts)	18,641	12,438
Other liabilities (Interest rate contracts)	18,689	12,478
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Other assets (Interest rate contracts)	0	0
Other liabilities (Interest rate contracts)	0	0
U.S. Government Agency and Sponsored Enterprise Mortgage-Back Securities and Collateralized Mortgage Obligations [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,330,100	1,286,489
U.S. Government Agency and Sponsored Enterprise Mortgage-Back Securities and Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
U.S. Government Agency and Sponsored Enterprise Mortgage-Back Securities and Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,330,100	1,286,489
U.S. Government Agency and Sponsored Enterprise Mortgage-Back Securities and Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
State and Municipal Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	491,387	492,169
State and Municipal Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
State and Municipal Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	491,387	492,169
State and Municipal Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
U.S. Government Agency [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	358,941	353,782
U.S. Government Agency [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
U.S. Government Agency [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	358,941	353,782
U.S. Government Agency [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
US Government Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	547	20,137
US Government Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	547	20,137
US Government Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
US Government Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Other Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,191	5,117
Other Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Other Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5,191	5,117
Other Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 0	$ 0

XML

Fair Value Accounting and Measurement (Financial Assets Accounted For Fair Value On Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 10,681
Fair Value, Option, Changes in Fair Value, Gain (Loss)	2,813	$ 197
OREO	2,553	1,429
Assets, Fair Value Disclosure	13,234	1,429
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0
OREO	0	0
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0
OREO	0	0
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	10,681
OREO	2,553	1,429
Assets, Fair Value Disclosure	13,234	1,429
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	2,676
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	$ 137	$ 197

XML

Fair Value Accounting and Measurement (Quantitative Information About Level 3 Fair Value Measurements) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016		Mar. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans		$ 10,681
OREO		2,553		$ 1,429
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans		10,681
OREO		2,553		$ 1,429
Real Estate Collateral [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans		$ 10,681
Other Collateral [Member] | Market Approach Valuation Technique [Member] | Impaired Loans [Member] | Minimum [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	[1]	0.00%	[2]	0.00%
Other Collateral [Member] | Market Approach Valuation Technique [Member] | Impaired Loans [Member] | Maximum [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	[1]	7.00%	[2]	0.00%
Other Collateral [Member] | Market Approach Valuation Technique [Member] | Impaired Loans [Member] | Weighted Average [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Comparability Adjustments	[1],[2]	6.00%		0.00%

[1] Discount applied to appraisal value, letter of intent to purchase, or stated value (in the case of accounts receivable and inventory).

[2] Other collateral consists of accounts receivable and inventory.

XML

Fair Value Accounting and Measurement (Carrying Amounts and Estimated Fair Values of Selected Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Interest-earning deposits with banks	$ 38,248	$ 8,373
Securities available for sale	2,186,166	2,157,694
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets
Cash and due from banks	150,683	166,929
Interest-earning deposits with banks	38,248	8,373
Securities available for sale	2,186,166	2,157,694
FHLB stock	10,241	12,722
Loans held for sale	3,681	4,509
Loans	5,808,019	5,746,855
FDIC loss-sharing asset	5,954	6,568
Interest rate contracts	18,641	12,438
Liabilities
Deposits	7,596,949	7,438,829
FHLB Advances	6,521	68,531
Repurchase agreements	73,839	99,699
Interest rate contracts	18,689	12,478
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	150,683	166,929
Interest-earning deposits with banks	38,248	8,373
Securities available for sale	2,186,166	2,157,694
FHLB stock	10,241	12,722
Loans held for sale	3,681	4,509
Loans	5,889,840	5,752,423
FDIC loss-sharing asset	1,613	921
Interest rate contracts	18,641	12,438
Liabilities
Deposits	7,593,830	7,434,787
FHLB Advances	7,459	69,176
Repurchase agreements	74,353	100,346
Interest rate contracts	18,689	12,478
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	150,683	166,929
Interest-earning deposits with banks	38,248	8,373
Securities available for sale	547	20,137
FHLB stock	0	0
Loans held for sale	0	0
Loans	0	0
FDIC loss-sharing asset	0	0
Interest rate contracts	0	0
Liabilities
Deposits	7,162,893	6,979,924
FHLB Advances	0	0
Repurchase agreements	0	0
Interest rate contracts	0	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	0	0
Interest-earning deposits with banks	0	0
Securities available for sale	2,185,619	2,137,557
FHLB stock	10,241	12,722
Loans held for sale	3,681	4,509
Loans	0	0
FDIC loss-sharing asset	0	0
Interest rate contracts	18,641	12,438
Liabilities
Deposits	430,937	454,863
FHLB Advances	7,459	69,176
Repurchase agreements	74,353	100,346
Interest rate contracts	18,689	12,478
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	0	0
Interest-earning deposits with banks	0	0
Securities available for sale	0	0
FHLB stock	0	0
Loans held for sale	0	0
Loans	5,889,840	5,752,423
FDIC loss-sharing asset	1,613	921
Interest rate contracts	0	0
Liabilities
Deposits	0	0
FHLB Advances	0	0
Repurchase agreements	0	0
Interest rate contracts	$ 0	$ 0

XML

Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income		$ 21,259	$ 24,361
Earnings allocated to participating securities - preferred shares		39	43
Earnings allocated to participating securities - nonvested restricted shares		247	225
Earnings allocated to common shareholders, Basic		$ 20,973	$ 24,093
Weighted average common shares outstanding		57,114	56,965
Basic earnings per common share		$ 0.37	$ 0.42
Earnings allocated to common shareholders, Diluted	[1]	$ 20,973	$ 24,093
Dilutive effect of equity awards and warrants		11	13
Weighted average diluted common shares outstanding		57,125	56,978
Diluted earnings per common share		$ 0.37	$ 0.42
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive.		27	53

[1] Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options and warrants to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.