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, 2012.

¨ 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 issuer 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, 2012 was 39,674,650.

TABLE OF CONTENTS

		Page
	PART I — FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)
	Consolidated Balance Sheets – March 31, 2012 and December 31, 2011	1
	Consolidated Statements of Income - three months ended March 31, 2012 and 2011	2
	Consolidated Statements of Comprehensive Income - three months ended March 31, 2012 and 2011	3
	Consolidated Statements of Changes in Shareholders’ Equity - three months ended March 31, 2012 and 2011	4
	Consolidated Statements of Cash Flows - three months ended March 31, 2012 and 2011	5
	Notes to Unaudited Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	42
Item 4.	Controls and Procedures	42
	PART II — OTHER INFORMATION
Item 1.	Legal Proceedings	43
Item 1A.	Risk Factors	43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	50
Item 3.	Defaults Upon Senior Securities	50
Item 4.	Mine Safety Disclosures	50
Item 5.	Other Information	50
Item 6.	Exhibits	50
	Signatures	51

i

PART I - FINANCIAL INFORMATION

Item 1. FINANCIAL STATEMENTS

CONSOLIDATED BALANCE SHEETS

Columbia Banking System, Inc.

(Unaudited)

			March 31, 2012		December 31, 2011
ASSETS			(in thousands)
Cash and due from banks			$	93,904	$	91,364
Interest-earning deposits with banks			297,553		202,925
Total cash and cash equivalents			391,457		294,289
Securities available for sale at fair value (amortized cost of $961,296 and $987,560, respectively)			999,213		1,028,110
Federal Home Loan Bank stock at cost			22,215		22,215
Loans held for sale			2,066		2,148
Loans, excluding covered loans, net of unearned income of ($12,865) and ($16,217), respectively			2,371,818		2,348,371
Less: allowance for loan and lease losses			52,283		53,041
Loans, excluding covered loans, net			2,319,535		2,295,330
Covered loans, net of allowance for loan losses of ($20,504) and ($4,944), respectively			501,613		531,929
Total loans, net			2,821,148		2,827,259
FDIC loss-sharing asset			159,061		175,071
Interest receivable			16,037		15,287
Premises and equipment, net			113,071		107,899
Other real estate owned ($24,430 and $28,126 covered by FDIC loss share, respectively)			41,174		51,019
Goodwill			115,554		115,554
Core deposit intangible, net			19,016		20,166
Other assets			115,420		126,928
Total assets			$	4,815,432	$	4,785,945
LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits:
Noninterest-bearing			$	1,159,308	$	1,156,610
Interest-bearing			2,706,137		2,658,919
Total deposits			3,865,445		3,815,529
Federal Home Loan Bank advances			114,715		119,009
Securities sold under agreements to repurchase			25,000		25,000
Other liabilities			57,569		67,069
Total liabilities			4,062,729		4,026,607
Commitments and contingent liabilities
Shareholders’ equity:
	March 31, 2012	December 31, 2011
Common stock (no par value)
Authorized shares	63,033	63,033
Issued and outstanding	39,670	39,506	579,894		579,136
Retained earnings			149,348		155,069
Accumulated other comprehensive income			23,461		25,133
Total shareholders’ equity			752,703		759,338
Total liabilities and shareholders’ equity			$	4,815,432	$	4,785,945

See accompanying Notes to unaudited Consolidated Financial Statements.

1

CONSOLIDATED STATEMENTS OF INCOME

Columbia Banking System, Inc.

(Unaudited)

	Three Months Ended
	March 31,
	2012			2011
	(in thousands except per share)
Interest Income
Loans	$	61,777		$	47,429
Taxable securities	5,245			4,417
Tax-exempt securities	2,525			2,467
Federal funds sold and deposits in banks	165			298
Total interest income	69,712			54,611
Interest Expense
Deposits	1,779			3,079
Federal Home Loan Bank advances	750			694
Long-term obligations	—			251
Other borrowings	120			138
Total interest expense	2,649			4,162
Net Interest Income	67,063			50,449
Provision for loan and lease losses	4,500			—
Provision (recapture) for losses on covered loans	15,685			(422		)
Net interest income after provision (recapture) for loan and lease losses	46,878			50,871
Noninterest Income (Loss)
Service charges and other fees	7,177			6,288
Merchant services fees	2,018			1,633
Gain on sale of investment securities, net	62			—
Bank owned life insurance	711			505
Change in FDIC loss-sharing asset	(1,668		)	(14,774		)
Other	1,274			929
Total noninterest income (loss)	9,574			(5,419		)
Noninterest Expense
Compensation and employee benefits	21,995			18,921
Occupancy	5,333			4,397
Merchant processing	873			883
Advertising and promotion	882			901
Data processing and communications	2,213			1,924
Legal and professional fees	1,609			1,413
Taxes, licenses and fees	1,355			865
Regulatory premiums	860			2,195
Net cost (benefit) of operation of other real estate owned	910			(442		)
Amortization of intangibles	1,150			984
Other	7,172			5,305
Total noninterest expense	44,352			37,346
Income before income taxes	12,100			8,106
Income tax provision	3,198			2,327
Net Income	$	8,902		$	5,779
Earnings per common share
Basic	$	0.22		$	0.15
Diluted	$	0.22		$	0.15
Dividends paid per common share	$	0.37		$	0.03
Weighted average number of common shares outstanding	39,195			39,043
Weighted average number of diluted common shares outstanding	39,298			39,156

See accompanying Notes to unaudited Consolidated Financial Statements.

2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Columbia Banking System, Inc.

(Unaudited)

	Three Months Ended
	March 31,
	2012			2011
	(in thousands)
Net income as reported	$	8,902		$	5,779
Unrealized gain from securities:
Net unrealized holding gain (loss) from available for sale securities arising during the period, net of tax of $926 and ($1,284)	(1,645		)	2,313
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $22 and $0	(40		)	—
Net unrealized gain from securities, net of reclassification adjustment	(1,685		)	2,313
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $0 and $79	—			(142		)
Net change in cash flow hedging instruments	—			(142		)
Pension plan liability adjustment:
Net unrealized gain from unfunded defined benefit plan liability arising during the period, net of tax of $0 and $154	—			(261		)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($7) and ($8)	13			14
Pension plan liability adjustment, net	13			(247		)
Total comprehensive income	$	7,230		$	7,703

See accompanying Notes to unaudited Consolidated Financial Statements.

3

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

Columbia Banking System, Inc.

(Unaudited)

	Common Stock					Retained Earnings			Accumulated Other Comprehensive Income			Total Shareholders’ Equity
	Number of Shares		Amount
	(in thousands)
Balance at January 1, 2011	39,338		$	576,905		$	117,692		$	12,281		$	706,878
Net income	—		—			5,779			—			5,779
Other comprehensive income	—		—			—			1,924			1,924
Issuance of common stock - stock option and other plans	23		380			—			—			380
Issuance of common stock - restricted stock awards, net of canceled awards	122		335			—			—			335
Purchase and retirement of common stock	(2	)	(32		)	—			—			(32		)
Cash dividends paid on common stock	—		—			(1,181		)	—			(1,181		)
Balance at March 31, 2011	39,481		$	577,588		$	122,290		$	14,205		$	714,083
Balance at January 1, 2012	39,506		$	579,136		$	155,069		$	25,133		$	759,338
Net income	—		—			8,902			—			8,902
Other comprehensive loss	—		—			—			(1,672		)	(1,672		)
Issuance of common stock - stock option and other plans	18		308			—			—			308
Issuance of common stock - restricted stock awards, net of canceled awards	146		450			—			—			450
Cash dividends paid on common stock	—		—			(14,623		)	—			(14,623		)
Balance at March 31, 2012	39,670		$	579,894		$	149,348		$	23,461		$	752,703

See accompanying Notes to unaudited Consolidated Financial Statements.

4

CONSOLIDATED STATEMENTS OF CASH FLOWS

Columbia Banking System, Inc.

(Unaudited)

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Cash Flows From Operating Activities
Net Income	$	8,902		$	5,779
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses and losses on covered loans	20,185			(422		)
Stock-based compensation expense	450			335
Depreciation, amortization and accretion	16,141			3,774
Net realized gain on sale of securities	(62		)	—
Net realized gain on sale of other assets	(21		)	(3		)
Net realized gain on sale of other real estate owned	(2,954		)	(2,712		)
Gain on termination of cash flow hedging instruments	—			(222		)
Write-down on other real estate owned	3,127			1,925
Net change in:
Loans held for sale	82			212
Interest receivable	(750		)	(1,725		)
Interest payable	(148		)	(251		)
Other assets	(1,166		)	13,736
Other liabilities	(8,403		)	(766		)
Net cash provided by operating activities	35,383			19,660
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected	(16,814		)	51,870
Purchases of:
Securities available for sale	(30,177		)	(149,799		)
Premises and equipment	(6,682		)	(2,461		)
Proceeds from:
FDIC reimbursement on loss-sharing asset	14,804			—
Sales of securities available for sale	3,845			—
Principal repayments and maturities of securities available for sale	49,654			27,315
Disposal of premises and equipment	—			20
Sales of covered other real estate owned	8,025			6,959
Sales of other real estate and other personal property owned	7,829			5,372
Capital improvements on other real estate properties	(90		)	(251		)
Decrease in Small Business Administration secured borrowings	—			(558		)
Net cash provided by (used in) investing activities	30,394			(61,533		)
Cash Flows From Financing Activities
Net increase in deposits	49,916			8,944
Proceeds from:
Federal Home Loan Bank advances	—			100
Federal Reserve Bank borrowings	—			100
Exercise of stock options	308			380
Payment for:
Repayment of Federal Home Loan Bank advances	(4,210		)	(4,140		)
Repayment of Federal Reserve Bank borrowings	—			(100		)
Common stock dividends	(14,623		)	(1,181		)
Purchase and retirement of common stock	—			(32		)
Net cash provided by financing activities	31,391			4,071
Increase (Decrease) in cash and cash equivalents	97,168			(37,802		)
Cash and cash equivalents at beginning of period	294,289			514,130
Cash and cash equivalents at end of period	$	391,457		$	476,328
Supplemental Information:
Cash paid during the year for:
Cash paid for interest	$	2,797		$	4,413
Cash paid for income tax	$	—		$	—
Non-cash investing activities
Loans transferred to other real estate owned	$	6,092		$	5,467

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 the Company, and its wholly owned banking subsidiary Columbia Bank (the “Bank”). 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, 2012 are not necessarily indicative of results to be anticipated for the year ending December 31, 2012. The accompanying interim unaudited consolidated financial statements should be read in conjunction with the financial statements and related notes contained in the Company’s 2011 Annual Report on Form 10-K.

Significant Accounting Policies

The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2011 Annual Report on Form 10-K. Other than as discussed below, there have not been any changes in our significant accounting policies compared to those contained in our 2011 10-K disclosure for the year ended December 31, 2011.

2. Accounting Pronouncements Recently Issued

In May 2011, the Financial Accounting Standards Board ("FASB") issued ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. Generally Accepted Accounting Principles (“GAAP”) and International Financial Reporting Standards (“IFRS”) (Topic 820). ASU 2011-04 developed common requirements between GAAP and IFRS for measuring fair value and for disclosing information about fair value measurements. The Company adopted this ASU during the current period with no impact on the Company's financial condition or results of operations.

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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	652,263	$	18,650	$	(1,329	)	$	669,584
State and municipal securities	263,298		20,466		(212		)	283,552
U.S. government agency and government-sponsored enterprise securities	42,439		350		(37		)	42,752
Other securities	3,296		60		(31		)	3,325
Total	$	961,296	$	39,526	$	(1,609	)	$	999,213
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	678,631	$	19,323	$	(2,000	)	$	695,954
State and municipal securities	263,075		22,746		(58		)	285,763
U.S. government agency and government-sponsored enterprise securities	42,558		505		—			43,063
Other securities	3,296		64		(30		)	3,330
Total	$	987,560	$	42,638	$	(2,088	)	$	1,028,110

6

The scheduled contractual maturities of investment securities available for sale at March 31, 2012 are presented as follows:

	March 31, 2012
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	22,442	$	22,749
Due after one year through five years	78,072		80,627
Due after five years through ten years	190,442		199,359
Due after ten years	667,044		693,153
Total investment securities available-for-sale	$	958,000	$	995,888

The following table summarizes, as of March 31, 2012, the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	Carrying Amount
	(in thousands)
To Washington and Oregon State to secure public deposits	$	213,713
To Federal Home Loan Bank to secure advances	87,180
To Federal Reserve Bank to secure borrowings	54,778
Other securities pledged	47,878
Total securities pledged as collateral	$	403,549

The following tables show 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, 2012 and December 31, 2011:

	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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	166,921	$	(1,228	)	$	12,035	$	(101	)	$	178,956	(1,329		)
State and municipal securities	8,251		(188		)	960		(24		)	9,211		(212		)
U.S. government agency and government-sponsored enterprise securities	13,932		(37		)	—		—			13,932		(37		)
Other securities	—		—			969		(31		)	969		(31		)
Total	$	189,104	$	(1,453	)	$	13,964	$	(156	)	$	203,068	$	(1,609	)
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	238,875	$	(1,999	)	$	196	$	(1	)	$	239,071	$	(2,000	)
State and municipal securities	3,820		(24		)	950		(34		)	4,770		(58		)
Other securities	—		—			970		(30		)	970		(30		)
Total	$	242,695	$	(2,023	)	$	2,116	$	(65	)	$	244,811	$	(2,088	)

7

At March 31, 2012, there were eleven state and municipal government securities in an unrealized loss position, of which one was 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, 2012none of the rated obligations of state and local government entities held by the Company had an adverse 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 maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there were 34 U.S. government agency and government-sponsored enterprise mortgage-backed securities & collateralized mortgage obligations securities in an unrealized loss position, of which two 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 maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there was one U.S. government agency and government-sponsored enterprise security in an unrealized loss position for less than 12 months. The decline in fair value is attributable to changes in interest rates relative to where this investment falls within the yield curve and its individual characteristics. Because the Company does not intend to sell this security nor does the Company consider it more likely than not that it will be required to sell this security before the recovery of amortized cost basis, which may be maturity, the Company does not consider this investment to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there was one other security, a mortgage-backed securities fund 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, 2012 as it has the intent and ability to hold the investment for sufficient time to allow for recovery in the market value.

4. Noncovered Loans

Noncovered loans include loans originated through our branch network and loan departments as well as acquired loans, including discounted loans, that are not subject to a FDIC loss-share agreement.

The following is an analysis of the noncovered loan portfolio by major types of loans (net of unearned income):

	March 31, 2012			December 31, 2011
	(in thousands)
Noncovered loans:
Commercial business	$	1,079,356		$	1,031,721
Real estate:
One-to-four family residential	58,843			64,491
Commercial and multifamily residential	992,403			998,165
Total real estate	1,051,246			1,062,656
Real estate construction:
One-to-four family residential	48,559			50,208
Commercial and multifamily residential	35,567			36,768
Total real estate construction	84,126			86,976
Consumer	169,955			183,235
Less: Net unearned income	(12,865		)	(16,217		)
Total noncovered loans, net of unearned income	2,371,818			2,348,371
Less: Allowance for loan and lease losses	(52,283		)	(53,041		)
Total noncovered loans, net	$	2,319,535		$	2,295,330
Loans held for sale	$	2,066		$	2,148

8

At March 31, 2012 and December 31, 2011, the Company had no loans to foreign domiciled businesses or foreign countries, or loans related to highly leveraged transactions. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington and Oregon.

The Company and its banking subsidiary have granted loans to 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 $11.7 million and $9.0 million at March 31, 2012 and December 31, 2011, respectively. During the first three months of 2012, advances on related party loans were $2.8 million and repayments totaled $141 thousand.

At March 31, 2012 and December 31, 2011, $471.7 million and $462.0 million of commercial and residential real estate loans were pledged as collateral on Federal Home Loan Bank borrowings.

The following is an analysis of noncovered, nonaccrual loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012				December 31, 2011
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business
Secured	$	14,676	$	23,299	$	10,124	$	16,820
Unsecured	115		715		119		719
Real estate:
One-to-four family residential	2,624		2,992		2,696		3,011
Commercial & multifamily residential
Commercial land	3,432		7,233		3,739		7,230
Income property multifamily	12,771		17,277		6,775		9,265
Owner occupied	8,669		12,249		8,971		10,932
Real estate construction:
One-to-four family residential
Land and acquisition	6,410		13,581		7,799		16,703
Residential construction	2,383		4,647		2,986		5,316
Commercial & multifamily residential
Income property multifamily	5,023		10,367		7,067		14,912
Consumer	1,449		1,776		3,207		3,960
Total	$	57,552	$	94,136	$	53,483	$	88,868

9

The following is an analysis of the recorded investment of the aged loan portfolio as of March 31, 2012 and December 31, 2011:

	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
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,006,841	$	3,279	$	3,606	$	—	$	6,885	$	14,676	$	1,028,402
Unsecured	46,796		235		119		—		354		115		47,265
Real estate:
One-to-four family residential	55,486		682		84		—		766		2,624		58,876
Commercial & multifamily residential
Commercial land	41,948		—		—		—		—		3,432		45,380
Income property multifamily	542,839		2,960		—		—		2,960		12,771		558,570
Owner occupied	369,579		1,948		—		—		1,948		8,669		380,196
Real estate construction:
One-to-four family residential
Land and acquisition	16,974		—		—		—		—		6,410		23,384
Residential construction	21,778		—		319		—		319		2,383		24,480
Commercial & multifamily residential
Income property multifamily	14,212		—		—		—		—		5,023		19,235
Owner occupied	16,008		—		—		—		—		—		16,008
Consumer	168,573		—		—		—		—		1,449		170,022
Total	$	2,301,034	$	9,104	$	4,128	$	—	$	13,232	$	57,552	$	2,371,818
	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
	(in thousands)
December 31, 2011
Commercial business
Secured	$	966,563	$	1,741	$	2,989	$	—	$	4,730	$	10,124	$	981,417
Unsecured	46,880		407		—		—		407		119		47,406
Real estate:
One-to-four family residential	60,764		603		—		—		603		2,696		64,063
Commercial & multifamily residential
Commercial land	46,161		781		—		—		781		3,739		50,681
Income property multifamily	524,225		2,872		121		—		2,993		6,775		533,993
Owner occupied	394,691		829		298		—		1,127		8,971		404,789
Real estate construction:
One-to-four family residential
Land and acquisition	17,249		153		—		—		153		7,799		25,201
Residential construction	19,555		1,390		—		—		1,390		2,986		23,931
Commercial & multifamily residential
Income property multifamily	13,810		—		—		—		—		7,067		20,877
Owner occupied	12,790		—		—		—		—		—		12,790
Consumer	179,753		141		122		—		263		3,207		183,223
Total	$	2,282,441	$	8,917	$	3,530	$	—	$	12,447	$	53,483	$	2,348,371

10

The following is an analysis of impaired loans as of March 31, 2012 and December 31, 2011:

	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,017,869	$	10,533	$	1,698	$	1,698	$	451	$	8,835	$	16,824	$	9,709	$	309
Unsecured	47,124		141		141		141		141		—		—		119		1
Real estate:
One-to-four family residential	56,823		2,053		355		368		72		1,698		1,848		2,266		1
Commercial & multifamily residential
Commercial land	42,369		3,011		—		—		—		3,011		6,052		3,405		—
Income property multifamily	549,035		9,535		4,579		4,612		1,087		4,956		8,556		8,083		115
Owner occupied	366,457		13,739		1,083		1,203		16		12,656		18,378		14,152		107
Real estate construction:
One-to-four family residential
Land and acquisition	17,693		5,691		—		—		—		5,691		11,026		6,539		—
Residential construction	20,993		3,487		18		1,468		18		3,469		4,209		4,286		358
Commercial & multifamily residential
Income property multifamily	14,212		5,023		—		—		—		5,023		10,367		6,045		—
Owner occupied	16,008		—		—		—		—		—		—		—		—
Consumer	168,971		1,051		—		—		—		1,051		1,052		1,672		—
Total	$	2,317,554	$	54,264	$	7,874	$	9,490	$	1,785	$	46,390	$	78,312	$	56,276	$	891
	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
December 31, 2011
Commercial business
Secured	$	972,531	$	8,886	$	2,926	$	2,927	$	954	$	5,960	$	12,109	$	15,578	$	511
Unsecured	47,309		97		97		97		97		—		—		138		—
Real estate:
One-to-four family residential	61,584		2,479		582		590		96		1,897		2,136		2,494		—
Commercial & multifamily residential
Commercial land	46,882		3,799		—		—		—		3,799		6,773		4,263		—
Income property multifamily	527,362		6,631		687		759		63		5,944		7,700		8,881		59
Owner occupied	390,225		14,564		274		274		185		14,290		18,524		15,254		18
Real estate construction:
One-to-four family residential
Land and acquisition	17,813		7,388		450		948		—		6,938		11,978		8,972		116
Residential construction	18,847		5,084		59		1,509		59		5,025		5,116		4,535		—
Commercial & multifamily residential
Income property multifamily	13,810		7,067		—		—		—		7,067		14,947		7,065		—
Owner occupied	12,790		—		—		—		—		—		—		—		—
Consumer	180,930		2,293		151		225		30		2,142		2,639		3,880		15
Total	$	2,290,083	$	58,288	$	5,226	$	7,329	$	1,484	$	53,062	$	81,922	$	71,060	$	719

11

There were no Troubled Debt Restructurings ("TDR") during the three months ended March 31, 2012. The following is an analysis of loans classified as TDR during the three months ended March 31, 2011:

	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Real estate construction: One-to-four family residential
Residential construction	1	36		36
Total	1	$	36	$	36

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 Company had commitments to lend $9.5 million and $535 thousand of additional funds on loans classified as TDR as of March 31, 2012 and December 31, 2011, respectively. The TDR modifications or concessions are made to increase the likelihood these borrowers with financial difficulties will be able to satisfy their debt obligations as amended. Credit losses for loans classified as TDR are measured the same as impaired loans. For impaired loans, an allowance is established when the collateral value (or discounted cash flows or observable market price) of the impaired loan is lower than the recorded investment of that loan.The Company did not have any loans modified as TDR within the past twelve months that have defaulted during the three months ended March 31, 2012.

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

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 Accounting Standards Codification ("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 systematically calculated quarterly using quantitative and qualitative information about specific loan classes. The minimum required level an entity develops a methodology to determine its allowance for loan and lease losses is by general categories of loans, such as commercial business, real estate, and consumer. However, the Company’s methodology in determining its allowance for loan and lease losses 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.

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 market place, 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.

12

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. 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, 2012 and 2011. 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 strive towards maintaining a conservative approach to credit quality and will continue to prudently adjust our ALLL as necessary in order to maintain adequate reserves. The Company carefully monitors the loan portfolio and continues to emphasize the importance of credit quality while continuously strengthening loan monitoring systems and controls.

13

The following table shows a detailed analysis of the allowance for loan and lease losses for noncovered loans for the three months ended March 31, 2012 and 2011:

	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2012
Commercial business
Secured	$	24,745	$	(2,354	)	$	614	$	2,537		$	25,542	$	451	$	25,091
Unsecured	689		(5		)	44		58			786		141		645
Real estate:
One-to-four family residential	654		(116		)	43		108			689		72		617
Commercial & multifamily residential
Commercial land	488		(305		)	—		510			693		—		693
Income property multifamily	9,551		(2,008		)	18		2,688			10,249		1,087		9,162
Owner occupied	9,606		(365		)	53		(739		)	8,555		16		8,539
Real estate construction:
One-to-four family residential
Land and acquisition	2,331		(204		)	47		(503		)	1,671		—		1,671
Residential construction	864		—			—		138			1,002		18		984
Commercial & multifamily residential
Income property multifamily	665		—			—		(442		)	223		—		223
Owner occupied	35		—			—		9			44		—		44
Consumer	2,719		(1,093		)	373		130			2,129		—		2,129
Unallocated	694		—			—		6			700		—		700
Total	$	53,041	$	(6,450	)	$	1,192	$	4,500		$	52,283	$	1,785	$	50,498
	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2011
Commercial business
Secured	$	21,811	$	(3,287	)	$	96	$	3,687		$	22,307	$	247	$	22,060
Unsecured	738		(84		)	9		(45		)	618		73		545
Real estate:
One-to-four family residential	1,100		(448		)	—		448			1,100		1		1,099
Commercial & multifamily residential
Commercial land	634		—			—		(79		)	555		58		497
Income property multifamily	15,210		(365		)	42		(2,591		)	12,296		51		12,245
Owner occupied	9,692		—			31		689			10,412		—		10,412
Real estate construction:
One-to-four family residential
Land and acquisition	3,769		(768		)	1,068		(773		)	3,296		355		2,941
Residential construction	2,292		(659		)	36		449			2,118		34		2,084
Commercial & multifamily residential
Income property multifamily	274		(487		)	—		340			127		—		127
Owner occupied	70		—			—		(2		)	68		—		68
Consumer	2,120		(925		)	63		1,160			2,418		—		2,418
Unallocated	3,283		—			—		(3,283		)	—		—		—
Total	$	60,993	$	(7,023	)	$	1,345	$	—		$	55,315	$	819	$	54,496

14

Changes in the allowance for unfunded commitments and letters of credit are summarized as follows:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands)
Beginning balance	$	1,535	$	1,165
Net changes in the allowance for unfunded commitments and letters of credit	130		495
Ending balance	$	1,665	$	1,660

Risk Elements

The extension of credit in the form of loans to individuals and businesses is one of our principal commerce 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, type of borrower and by limiting the aggregation of debt to a single borrower.

The monitoring process for the loan portfolio includes periodic reviews of individual loans with risk ratings assigned to each loan. Based on the analysis, loans are given a risk rating of 1-10 based on the following criteria:

• ratings of 1-3 indicate minimal to low credit risk,

• ratings of 4-5 indicate an average credit risk with adequate repayment capacity when prolonged periods of adversity do not exist,

• rating of 6 indicate higher than average risk requiring greater than routine attention by bank personnel due to conditions affecting the borrower, the borrower's industry or economic environment,

• rating of 7 indicate 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,

• rating of 8 indicates a loss is possible if loan weaknesses are not corrected,

• rating of 9 indicates loss is highly probable; however, the amount of loss has not yet been determined,

• and a rating of 10 indicates the loan is uncollectable, and when identified is charged-off.

Loans with a risk rating of 1-6 are considered Pass loans and loans with risk ratings of 7, 8, 9 and 10 are considered Special Mention, Substandard, Doubtful and Loss, respectively. Loans with a risk rating of Substandard or worse are reported as classified loans in our allowance for loan and lease losses 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. 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 non-accrual 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.

15

The following is an analysis of the credit quality of our noncovered loan portfolio as of March 31, 2012 and December 31, 2011:

	March 31, 2012			December 31, 2011
	Weighted- Average Risk Rating	Recorded Investment Noncovered Loans		Weighted- Average Risk Rating	Recorded Investment Noncovered Loans
	(dollars in thousands)
Commercial business
Secured	4.92	$	1,028,402	4.89	$	981,417
Unsecured	4.26	47,265		4.25	47,406
Real estate:
One-to-four family residential	4.76	58,876		4.81	64,063
Commercial & multifamily residential
Commercial land	5.11	45,380		5.22	50,681
Income property multifamily	4.00	558,570		4.94	533,993
Owner occupied	5.09	380,196		5.05	404,789
Real estate construction:
One-to-four family residential
Land and acquisition	6.29	23,384		6.43	25,201
Residential construction	5.80	24,480		5.94	23,931
Commercial & multifamily residential
Income property multifamily	5.06	19,235		5.49	20,877
Owner occupied	4.60	16,008		4.55	12,790
Consumer	4.22	170,022		4.24	183,223
Total recorded investment of noncovered loans		$	2,371,818		$	2,348,371

6. Changes in Noncovered Other Real Estate Owned

The following table sets forth activity in noncovered OREO for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Noncovered OREO:
Balance, beginning of period	$	22,893		$	30,991
Transfers in, net of write-downs ($118 and $91, respectively)	3,803			2,042
OREO improvements	11			251
Additional OREO write-downs	(1,722		)	(1,910		)
Proceeds from sale of OREO property	(7,829		)	(5,372		)
Gain (loss) on sale of OREO	(412		)	79
Total noncovered OREO, end of period	$	16,744		$	26,081

16

7. Covered Assets and FDIC Loss-sharing Asset

Covered Assets

Covered assets consist of loans and OREO acquired in FDIC assisted acquisitions during 2010 and 2011, for which the Bank entered into loss-sharing agreements, whereby the FDIC will cover a substantial portion of any future losses on loans (and related unfunded loan commitments), OREO and certain accrued interest on loans. 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 and, with respect to loss-sharing agreements for two acquisitions completed in 2010, will absorb 95% of losses and share in 95% of loss recoveries thereafter. The loss-sharing provisions of the agreements for commercial and single-family mortgage loans are in effect for five and ten years, respectively, from the acquisition dates and the loss recovery provisions are in effect for eight and ten years, respectively, from the acquisition dates.

Ten years and forty-five days after the acquisition dates, the Bank shall pay to the FDIC a clawback in the event the losses from the acquisitions fail to reach stated levels. This clawback shall be in the amount of 50% of the excess, if any, of 20% of the stated threshold amounts, less the sum of 25% of the asset premium (discount), 20% or 25% of the cumulative loss-sharing payments (depending on the particular agreement), and the cumulative servicing amount. As of March 31, 2012, the net present value of the Bank’s estimated clawback liability is $3.6 million, which is included in other liabilities on the consolidated balance sheets.

The following is an analysis of our covered loans, net of related allowance for losses on covered loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012					December 31, 2011
	Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses		Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses
	(dollars in thousands)
Commercial business	$	175,623	6.00	$	6,320	$	195,737	6.05	$	977
Real estate:
One-to-four family residential	74,733		5.35	2,947		79,328		5.32	678
Commercial and multifamily residential	299,202		5.57	6,840		311,308		5.65	2,683
Total real estate	373,935			9,787		390,636			3,361
Real estate construction:
One-to-four family residential	44,335		7.25	1,604		54,402		7.32	136
Commercial and multifamily residential	21,330		7.04	711		23,661		7.32	86
Total real estate construction	65,665			2,315		78,063			222
Consumer	51,661		4.71	2,082		56,877		4.84	384
Subtotal of covered loans	666,884			$	20,504	721,313			$	4,944
Less:
Valuation discount resulting from acquisition accounting	144,767					184,440
Allowance for loan losses	20,504					4,944
Covered loans, net of valuation discounts and allowance for loan losses	$	501,613				$	531,929

Certain acquired 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. Acquired loans that have common risk characteristics are aggregated into pools. The Company re-measures 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.

17

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 re-measurement date. Loss severity factors are based upon actual charge-off data within the loan pools and recovery lags are based upon experience with the collateral within the loan pools.

Acquired loans are also subject to the Company’s internal and external credit review and are risk rated using the same criteria as loans originated by the Company. However, risk ratings are not a clear indicator of losses on acquired loans as a majority of the losses are recoverable from the FDIC under the loss-sharing agreements.

Draws on acquired loans, advanced subsequent to the loan acquisition date, are accounted for under ASC 450-20 and those amounts are also subject to the Company’s internal and external credit review. An allowance for loan losses is estimated in a similar manner as the originated loan portfolio, and a provision for loan losses is charged to earnings as necessary.

The excess of cash flows expected to be collected over the initial fair value of acquired 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 table shows the changes in accretable yield for acquired loans for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	259,669		$	256,572
Accretion	(27,658		)	(21,303		)
Disposals	(1,799		)	(3,159		)
Reclassifications from (to) nonaccretable difference	9,465			(14,759		)
Balance at end of period	$	239,677		$	217,351

During the three months ended March 31, 2012, the Company recorded a provision expense for losses on covered loans of $15.7 million. Of this amount, $16.1 million was impairment expense calculated in accordance with ASC 310-30 and $400 thousand was a negative provision to adjust the allowance for loss calculated under ASC 450-20 for draws on acquired loans. The impact to earnings of the $15.7 million of provision expense for covered loans was partially offset through noninterest income by a $12.5 million increase in the FDIC loss-sharing asset.

The changes in the ALLL for covered loans for the three months ended March 31, 2012 and 2011 are summarized as follows:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Beginning balance	$	4,944		$	6,055
Loans charged off	(562		)	—
Recoveries	437			—
Provision charged to expense	15,685			(422		)
Ending balance	$	20,504		$	5,633

18

The following table sets forth activity in covered OREO at carrying value for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Covered OREO:
Balance, beginning of period	$	28,126		$	14,443
Transfers in	2,468			3,425
Additional OREO write-downs	(1,505		)	(15		)
Proceeds from sale of OREO property	(8,025		)	(6,959		)
Gain on sale of OREO	3,366			2,633
Total covered OREO, end of period	$	24,430		$	13,527

The covered OREO is covered by loss-sharing agreements with the FDIC in which the FDIC will assume 80% of additional write-downs and losses on covered OREO sales, or 95%, if applicable, of additional write-downs and losses on covered OREO sales if the minimum loss share thresholds are met.

FDIC Loss-sharing Asset

At March 31, 2012, the FDIC loss-sharing asset is comprised of a $135.6 million FDIC indemnification asset and a $23.5 million FDIC receivable. The indemnification represents the cash flows the Company expects to collect from the FDIC under the loss-sharing agreements and the FDIC receivable represents the reimbursable amounts from the FDIC that have not yet been received.

For covered loans, the Company remeasures contractual and expected cash flows on a quarterly basis. When the quarterly re-measurement 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, 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 re-measurement 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, 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 loan pool.

The following table shows a detailed analysis of the FDIC loss-sharing asset for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	175,071		$	205,991
Adjustments not reflected in income
Cash received from the FDIC	(14,804		)	—
FDIC reimbursable losses, net	462			1,836
Adjustments reflected in income
Amortization, net	(13,873		)	(13,569		)
Impairment	12,548			(338		)
Sale of other real estate	(2,067		)	(867		)
Other	1,724			—
Balance at end of period	$	159,061		$	193,053

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8. Goodwill and 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 during the third quarter on an annual basis 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 approximately 10 years.

The following table sets forth activity for goodwill and intangible assets for the period:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Total goodwill	$	115,554		$	109,639
Core deposit intangible:
Gross core deposit intangible balance, beginning of period	32,441			26,651
Accumulated amortization, beginning of period	(12,275		)	(7,955		)
Core deposit intangible, net, beginning of period	20,166			18,696
CDI current period amortization	(1,150		)	(984		)
Total core deposit intangible, end of period	19,016			17,712
Total goodwill and intangible assets, end of period	$	134,570		$	127,351

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2012 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2012	$	3,295
2013	3,964
2014	3,397
2015	2,645
2016	2,184

9. Shareholders’ Equity

On January 26, 2012 the Company declared a quarterly cash dividend of $0.08 per share and a special, one-time cash dividend of $0.29 per share, both payable on February 22, 2012 to shareholders of record at the close of business February 8, 2012. 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. Subsequent to quarter end, on April 25, the Company declared a quarterly cash dividend of $0.08 per share and a special one-time cash dividend of $0.14 per share, payable on May 23, 2012 to shareholders of record at the close of business May 9, 2012.

20

10. Derivatives and Hedging Activities

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, 2012 and 2011 was $171.3 million and $160.3 million, respectively.

The following table presents the fair value of derivative instruments at March 31, 2012 and 2011:

	Asset Derivatives						Liability Derivatives
As of March 31,	2012			2011			2012			2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in thousands)
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14,950	Other assets	$	9,050	Other liabilities	$	14,950	Other liabilities	$	9,050

11. 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.

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.

21

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, 2012 and December 31, 2011 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  at March 31, 2012		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	669,584	$	—	$	669,584	$	—
State and municipal debt securities	283,552		—		283,552		—
U.S. government agency and government-sponsored enterprise securities	42,752		—		42,752		—
Other securities	3,325		—		3,325		—
Total securities available for sale	$	999,213	$	—	$	999,213	$	—
Other assets (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—

	Fair value  at December 31, 2011		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	695,954	$	—	$	695,954	$	—
State and municipal debt securities	285,763		—		285,763		—
U.S. government agency and government-sponsored enterprise securities	43,063		—		43,063		—
Other securities	3,330		—		3,330		—
Total securities available for sale	$	1,028,110	$	—	$	1,028,110	$	—
Other assets (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—

There were no transfers between Level 1 and Level 2 of the valuation hierarchy during the three month period ended March 31, 2012.

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 if the loan is collateral-dependent loan. Generally, the Company utilizes the fair market value of the collateral to measure impairment.

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Other real estate owned and Other personal property owned—OREO and OPPO are real and personal property that the Bank has taken ownership of in partial or full satisfaction of a loan or loans. OREO and OPPO is recorded at the lower of the carrying amount of the loan or fair value less estimated costs to sell. This amount becomes the property’s new basis. Any write-downs based on the property fair value less estimated cost to sell at the date of acquisition are charged to the allowance for loan and lease losses. Management periodically reviews OREO and OPPO in an effort to ensure the property is carried at the lower of its new basis or fair value, net of estimated costs to sell. Any write-downs subsequent to acquisition are charged to earnings.

The following table sets forth the Company's assets that were measured using fair value estimates on a nonrecurring basis at March 31, 2012 and 2011.

	Fair value  at March 31, 2012		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2012
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	12,416	$	—	$	—	$	12,416	$	2,881
Noncovered OREO	3,510		—		—		3,510		1,730
Covered OREO	1,917		—		—		1,917		767
Noncovered OPPO	2,334		—		—		2,334		1,950
	$	20,177	$	—	$	—	$	20,177	$	7,328

	Fair value  at March 31, 2011		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2011
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	31,712	$	—	$	—	$	31,712	$	4,908
Noncovered OREO	4,490		—		—		4,490		2,001
Covered OREO	31		—		—		31		14
Noncovered OPPO	2,420		—		—		2,420		185
	$	38,653	$	—	$	—	$	38,653	$	7,108

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 and OPPO disclosed above represent the write-downs taken at foreclosure that were charged to the allowance for loan and lease losses, as well as subsequent write-downs from updated appraisals that were charged 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 during the first quarter of 2012, along with the valuation techniques used, are shown in the following table:

	Fair value  at March 31, 2012		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	12,416	Market comparable	Adjustment to Appraisal Value	0% - 37% (12%)
Noncovered OREO	3,510		Market comparable	Adjustment to Appraisal Value	N/A (2)
Covered OREO	1,917		Market comparable	Adjustment to Appraisal Value	0% - 23% (3%)
Noncovered OPPO	2,334		Market comparable	Adjustment to Appraisal Value	N/A (2)
(1) Discount to appraisal value.
(2) Quantitative disclosures are not provided for noncovered OREO and noncovered OPPO because there were no adjustments made to the appraisal value during the current period.

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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 are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors (Level 2).

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—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, 2012 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 covered loans, fair value is estimated by discounting the expected future cash flows using a lending rate that would have been offered on March 31, 2012 (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 as their basis, readily observable market parameters (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 and FRB borrowings—The fair value of Federal Home Loan Bank of Seattle (the “FHLB”) advances and Federal Reserve Bank of San Francisco (the “FRB”) borrowings are estimated based on discounting the future cash flows using the market rate currently offered (Level 2).

Repurchase Agreements—The fair value of securities sold under agreement to repurchase is estimated based on discounting the future cash flows using the market rate currently offered (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.

24

The following table summarizes carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value:

	March 31, 2012										December 31, 2011
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3		Carrying Amount		Fair Value
	(in thousands)
Assets
Cash and due from banks	$	93,904	$	93,904	$	93,904	$	—	$	—	$	91,364	$	91,364
Interest-earning deposits with banks	297,553		297,553		297,553		—		—		202,925		202,925
Securities available for sale	999,213		999,213		—		999,213		—		1,028,110		1,028,110
FHLB stock	22,215		22,215		—		22,215		—		22,215		22,215
Loans held for sale	2,066		2,066		—		—		2,066		2,148		2,148
Loans	2,821,148		2,929,332		—		—		2,929,332		2,827,259		2,957,345
FDIC loss-sharing asset	159,061		62,609		—		—		62,609		175,071		71,788
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302
Liabilities
Deposits	$	3,865,445	$	3,891,744	$	3,328,620	$	563,124	$	—	$	3,815,529	$	3,817,013
FHLB Advances	114,715		114,941		—		114,941		—		119,009		119,849
Repurchase agreements	25,000		26,442		—		26,442		—		25,000		26,580
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302

12. Earnings per Common Share

Basic Earnings per Share (“EPS”) is computed by dividing income applicable to common shareholders by the weighted average number of common shares outstanding for the period. Common shares outstanding include common stock and vested restricted stock awards where recipients have satisfied the vesting terms. Diluted EPS reflects the assumed conversion of all dilutive securities, applying the treasury stock method. The Company calculates earnings per share using the two-class method as described in the Earnings per Share topic of the FASB ASC. The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2012 and 2011:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands except per share)
Basic EPS:
Net income	$	8,902	$	5,779
Less: Earnings allocated to participating securities	(132)		(53)
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Basic earnings per common share	$	0.22	$	0.15
Diluted EPS:
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Dilutive effect of equity awards and warrants	103		113
Weighted average diluted common shares outstanding	39,298		39,156
Diluted earnings per common share	$	0.22	$	0.15
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	46		54

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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”, and “the Company”) and notes thereto presented elsewhere in this report and with the December 31, 2011 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 contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements about our plans, objectives, expectations and intentions that are not historical facts, and other statements identified by words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “should,” “projects,” “seeks,” “estimates” or words of similar meaning. These 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, these 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 sections “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this report, the following factors, among others, could cause actual results to differ materially from the anticipated results:

• local and national 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 at historical rates and maintain the quality of our earning assets;

• the local housing/real estate markets where we operate and make loans could continue to decline;

• the risks presented by a continued challenging 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 could not be realized;

• 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 FDIC insurance and other coverages;

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

• competition among financial institutions could increase significantly;

• 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;

• the terms and costs of the numerous actions taken by the Federal Reserve, the U.S. Congress, the Treasury, the FDIC, the SEC and others in response to the liquidity and credit crisis, or the failure of these actions to help stabilize the financial markets, asset prices, market liquidity, or worsening of current financial market and economic conditions could materially and adversely affect our business, financial condition, results of operations, and the trading price of our common stock;

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

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

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 these 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.

26

CRITICAL ACCOUNTING POLICIES

Management has identified the accounting policies related to the allowance for loan and lease losses, business combinations, acquired impaired 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 Discussion and Analysis of Financial Condition and Results of Operation” under the headings “Allowance for Loan and Lease Losses”, “Business Combinations”, “Acquired Impaired Loans”, "FDIC Loss Sharing Asset” and “Valuation and Recoverability of Goodwill” in our 2011 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 2011 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 applicable to common shareholders for the first quarter of $8.9 million or $0.22 per diluted common share, compared to $5.8 million or $0.15 per diluted common share for the first quarter of 2011. The increase in net income from the prior year period was attributable to an increase in revenue (net interest income plus noninterest income), partially offset by increased provision for loan losses and an increase in noninterest expense. Return on average assets and return on average common equity were 0.75% and 4.70%, respectively, for the first quarter of 2012, compared with returns of 0.55% and 3.30%, respectively for the same period of 2011. Generally, the increase in earnings from the prior year period reflects the impact to earnings associated with certain of the Company's acquired loan portfolios from three Federal Deposit Insurance Corporation ("FDIC") assisted transactions completed in May and August 2011. A summary of those acquisitions as well as significant assets acquired and liabilities assumed is as follows:

The Company acquired a portion of the banking operations of Colfax, Washington-based Bank of Whitman pursuant to a purchase and assumption agreement with the FDIC on August 5, 2011. The Company acquired tangible assets with a fair value of $433.6 million, including $200.0 million of loans (net of acquisition accounting adjustments) and assumed $401.1 million in deposits.

The Company acquired the banking operations of Snohomish, Washington-based First Heritage Bank pursuant to a purchase and assumption agreement with the FDIC on May 27, 2011. The Company acquired tangible assets with a fair value of $157.8 million, including $81.9 million of loans (net of acquisition accounting adjustments) and assumed $159.5 million in deposits.

The Company acquired the banking operations of Burlington, Washington-based Summit Bank pursuant to a purchase and assumption agreement with the FDIC on May 20, 2011. The Company acquired tangible assets with a fair value of $127.7 million, including $71.5 million of loans (net of acquisition accounting adjustments) and assumed $123.3 million in deposits.

27

The following table illustrates the significant impact to earnings associated with certain of the Company's acquired loan portfolios for the periods indicated:

	Three Months Ended
	March 31, 2012			December 31, 2011			March 31, 2011
	( in thousands)
Incremental accretion income on acquired loans	$	22,421		$	26,406		$	12,371
Change in FDIC-loss sharing asset	(1,668		)	(17,448		)	(14,774		)
(Provision) recapture for losses on covered loans	(15,685		)	3,960			422
FDIC clawback liability (expense) benefit	26			(362		)	(1,700		)
Pre-tax earnings impact of acquisition accounting	$	5,094		$	12,556		$	(3,681	)

Revenue (net interest income plus noninterest income) for the three months ended March 31, 2012 was $76.6 million, 70% more than the same period in 2011. The increase in revenue was primarily a result of increased net interest income arising from higher loan volumes and yields from assets acquired in three FDIC-assisted transactions completed in May and August 2011. For a more complete discussion of this topic, please refer to the net interest income section contained in the ensuing pages.

The provision for loan and lease losses for the first quarter of 2012 was $4.5 million for the noncovered loan portfolio and $15.7 million for the covered loan portfolio compared with no provision for the noncovered loan portfolio and a $422 thousand recapture of provision for the covered loan portfolio during the first quarter of 2011. The $15.7 million in provision for losses on covered loans in the current period was due to incremental loan losses incurred in the current period which were in excess of those expected from the re-measurement of cash flows during the fourth quarter of 2011.  These incremental loan losses reduced expected future cash flows and, when discounted at current yields, resulted in impairment. The $15.7 million in provision expense is partially off-set by a $12.6 million favorable adjustment to the change in FDIC loss-sharing asset.

The $4.5 million provision for the noncovered loan portfolio was driven by originated loan growth of approximately $75 million and the level of chargeoffs during the quarter. The Company believes that, at 2.20% of net noncovered loans, the allowance for loan and lease losses remains adequate at March 31, 2012. The allowance to net noncovered loans was 2.26% at year-end 2011 and 2.94% at March 31, 2011.

Total noninterest expense for the quarter ended March 31, 2012 was $44.3 million, a 19% increase from the first quarter of 2011. As described above, the increase was primarily due to the additional compensation, employee benefit and occupancy expenses related to the FDIC-assisted acquisitions completed during 2011. In addition, other noninterest expense increased $1.9 million from the prior year period. This increase is primarily the result of a $2.2 million expense in the current period associated with a write-down on one other personal property owned asset which arose from an updated appraisal.

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Net Interest Income

Net interest income for the first quarter of 2012 was $67.1 million, an increase of 33% from $50.4 million for the same quarter in 2011. The Company's net interest margin increased to 6.67% in the first quarter of 2012, from 5.80% for the same quarter last year. The increases in net interest income and margin were primarily due to the impact of income accretion on the acquired loan portfolios. The incremental accretion income represents the amount of income recorded on the acquired loans above the contractual rate stated in the individual loan notes. The incremental accretion income had a positive impact of approximately 218 bps on the first quarter's net interest margin. For the same period last year, the incremental accretion income had a positive impact of approximately 138 bps on the net interest margin.

Incremental accretion income from acquired impaired loans increased $6.9 million from the prior year period. This increase was primarily due to increased volumes of acquired impaired loans acquired in FDIC-assisted transactions in May 2011. In addition, the discount accretion on loans acquired from the Bank of Whitman transaction in August 2011 increased net interest income by $3.1 million. For additional information on the Company's accounting policies related to recording interest income on loans, please refer to “Item 8. Financial Statements and Supplementary Data” in our 2011 Annual Report on Form 10-K.

The following table shows the impact to interest income and the related impact to the net interest margin resulting from accretion of income on certain acquired loan portfolios for the periods presented:

	Three Months Ended
	March 31, 2012			December 31, 2011			March 31, 2011
	(dollars in thousands)
Interest income as recorded	$	32,902		$	38,721		$	21,302
Less: Interest income at stated note rate	10,481			12,315			8,931
Incremental accretion income	$	22,421		$	26,406		$	12,371
Incremental accretion income due to:
Acquired impaired loans	$	19,320		$	17,222		$	12,371
Other acquired loans	3,101			9,184			—
Incremental accretion income	$	22,421		$	26,406		$	12,371
Net interest margin	6.67		%	7.14		%	5.80		%
Net interest margin excluding incremental accretion income	4.49		%	4.68		%	4.42		%

29

The following table sets 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 rate paid on 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,
	2012						2011
	Average Balances (1)		Interest Earned / Paid		Average Rate		Average Balances (1)		Interest Earned / Paid (3)		Average Rate
	(dollars in thousands)
ASSETS
Loans, net (1) (2)	$	2,860,524	$	61,970	8.71	%	$	2,388,076	$	47,569	8.08	%
Taxable securities	747,503		5,245		2.82	%	526,817		4,417		3.40	%
Tax exempt securities (2)	275,563		3,918		5.72	%	240,543		3,828		6.45	%
Interest-earning deposits with banks and federal funds sold	253,859		165		0.26	%	477,227		298		0.25	%
Total interest-earning assets	4,137,449		$	71,298	6.93	%	3,632,663		$	56,112	6.26	%
Other earning assets	74,924						52,709
Noninterest-earning assets	563,813						582,976
Total assets	$	4,776,186					$	4,268,348
LIABILITIES AND SHAREHOLDERS’ EQUITY
Certificates of deposit	$	589,573	$	1,000	0.68	%	$	608,154	$	1,447	0.96	%
Savings accounts	291,554		23		0.03	%	215,034		46		0.09	%
Interest-bearing demand	747,242		231		0.12	%	682,746		411		0.24	%
Money market accounts	1,044,542		525		0.20	%	923,887		1,175		0.52	%
Total interest-bearing deposits	2,672,911		1,779		0.27	%	2,429,821		3,079		0.51	%
Federal Home Loan Bank and Federal Reserve Bank borrowings	117,095		750		2.58	%	115,193		694		2.44	%
Long-term obligations	—		—		—	%	25,742		251		3.96	%
Other borrowings	25,855		120		1.87	%	26,077		138		2.15	%
Total interest-bearing liabilities	2,815,861		$	2,649	0.38	%	2,596,833		$	4,162	0.65	%
Noninterest-bearing deposits	1,132,413						876,347
Other noninterest-bearing liabilities	66,226						84,886
Shareholders’ equity	761,686						710,282
Total liabilities & shareholders’ equity	$	4,776,186					$	4,268,348
Net interest income (2)			$	68,649					$	51,950
Net interest margin					6.67	%					5.80	%

(1) Nonaccrual loans have been included in the tables as loans carrying a zero yield. Amortized net deferred loan fees were included in the interest income calculations. The amortization of net deferred loan fees was $312 thousand and $224 thousand for the three months ended March 31, 2012 and 2011, respectively. The amortization of net unearned discounts on certain acquired loans was $3.1 million for the three months ended March 31, 2012. There was no amortization of net unearned discounts in the prior year period.

(2) Tax-exempt income is calculated on a tax equivalent basis, based on a marginal tax rate of 35%.

(3) Reclassified to conform to the current period’s presentation.

30

The following tables set 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, changes in rates and changes in rates multiplied by volume. 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, 2012 Compared to 2011 Increase (Decrease) Due to
	Volume			Rate			Total
	(in thousands)
Interest Income
Loans (1)(2)	$	9,983		$	4,418		$	14,401
Taxable securities	1,634			(806		)	828
Tax exempt securities (2)	523			(433		)	90
Interest earning deposits with banks and federal funds sold	(145		)	12			(133		)
Interest income (2)	$	11,995		$	3,191		$	15,186
Interest Expense
Deposits:
Certificates of deposit	$	(43	)	$	(404	)	$	(447	)
Savings accounts	12			(35		)	(23		)
Interest-bearing demand	36			(216		)	(180		)
Money market accounts	137			(787		)	(650		)
Total interest on deposits	142			(1,442		)	(1,300		)
FHLB and Federal Reserve Bank borrowings	12			44			56
Long-term obligations	(500		)	249			(251		)
Other borrowings	(1		)	(17		)	(18		)
Interest expense	$	(347	)	$	(1,166	)	$	(1,513	)

(1) Nonaccrual loans have been included in the tables as loans carrying a zero yield. Amortized net deferred loan fees were included in the interest income calculations. The amortization of net deferred loan fees was $312 thousand and $224 thousand for the three months ended March 31, 2012 and 2011, respectively. The amortization of net unearned discounts on certain acquired loans was $3.1 million for the three months ended March 31, 2012. There was no amortization of net unearned discounts in the prior year period.

(2) Tax-exempt income is calculated on a tax equivalent basis, based on a marginal tax rate of 35%.

Provision for Loan and Lease Losses

The provision for loan and lease losses for the first quarter of 2012 was $4.5 million for the noncovered loan portfolio and $15.7 million for the covered loan portfolio compared with no provision for the noncovered loan portfolio and a $422 thousand provision recapture for the covered loan portfolio during the first quarter of 2011. Provision expense on covered loans is principally offset by a change in the FDIC-loss sharing asset. The $15.7 million in provision for losses on covered loans in the current period was due to incremental loan losses incurred in the current period which were in excess of those expected from the re-measurement of cash flows during the fourth quarter of 2011.  These incremental loan losses reduced expected future cash flows and, when discounted at current yields, resulted in impairment. The $15.7 million in provision expense is partially off-set by a $12.6 million favorable adjustment to the change in FDIC loss-sharing asset.

31

The $4.5 million provision for the noncovered loan portfolio was driven by originated loan growth of approximately $75 million and the level of chargeoffs during the quarter. Net noncovered loan charge-offs for the current quarter were $5.3 million compared to $5.7 million for the first quarter of 2011. Loans in the noncovered commercial and multi-family residential real estate permanent portfolio accounted for 50% of the first quarter 2012 net noncovered charge-offs, while loans in the noncovered commercial business portfolio accounted for 32% of the first quarter 2012 net noncovered charge-offs compared to 5% and 58%, respectively, in 2011. The amount of provision was calculated in accordance with the Company’s methodology for determining the ALLL, discussed in Note 5 to the Company’s consolidated financial statements presented elsewhere in this report and was based upon improving credit metrics in the noncovered loan portfolio.

Noninterest Income (Loss)

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,
	2012			2011			$ Change		% Change
	(dollars in thousands)
Service charges and other fees	$	7,177		$	6,288		$	889	14	%
Merchant services fees	2,018			1,633			385		24	%
Gain on sale of investment securities, net	62			—			62		100	%
Bank owned life insurance	711			505			206		41	%
Change in FDIC-loss sharing asset	(1,668		)	(14,774		)	13,106		(89	)%
Other	1,274			929			345		37	%
Total noninterest income (loss)	$	9,574		$	(5,419	)	$	14,993	(277	)%

Noninterest income was $9.6 million for the first quarter of 2012, compared to a $5.4 million loss for the same period in 2011. The increase was primarily due to the $1.7 million change in the FDIC loss-sharing asset recorded as a reduction in income during the current quarter, compared to a $14.8 million reduction to income during the same period in 2011.

Changes in the FDIC loss-sharing asset are primarily driven by amortization of the FDIC loss-sharing asset and the provision recorded for reimbursable losses on FDIC covered loans. For the first three months of 2012, the $13.9 million of amortization of the FDIC loss-sharing asset was nearly offset by a $12.5 million increase in the FDIC loss-sharing related to the provision expense recorded for reimbursable losses on FDIC covered loans. For the same period in 2011, the $13.6 million of amortization of the FDIC loss-sharing asset was combined with a $338 thousand decrease of the FDIC loss-sharing asset related to a provision recapture of reimbursable losses on FDIC covered loans. For additional information on the FDIC loss-sharing asset, please see the "FDIC Loss-sharing Asset" section of Management's Discussion and Analysis and Note 7 to the Consolidated Financial Statements in "Item 1. Financial Statements (unaudited)" of this report.

Noninterest Expense

Total noninterest expense for the first quarter of 2012 was $44.4million, an increase of 19% from $37.3 million a year earlier. The increase was attributable to the operating expenses of the three FDIC-assisted bank acquisitions since May 2011. The most significant increases were in compensation and benefits, occupancy expense, and other noninterest expense. Compensation and employee benefits increased $3.1 million, and the occupancy expense increased $936 thousand as a result of the addition of 17 branch locations acquired in the three FDIC-assisted acquisitions. Other noninterest expense increased $1.9 million, substantially due to $2.2 million in write-downs of other personal property owned "OPPO". These increases were partially offset by a $1.3 million decrease in regulatory premiums due to a decrease in the assessment rate utilized in calculating premiums due.

32

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,
	2012			2011			$ Change			% Change
	(dollars in thousands)
Compensation	$	18,041		$	15,587		$	2,454		16	%
Employee benefits	3,588			3,269			319			10	%
Contract labor	366			65			301			463	%
	21,995			18,921			3,074			16	%
All other noninterest expense:
Occupancy	5,333			4,397			936			21	%
Merchant processing	873			883			(10		)	(1	)%
Advertising and promotion	882			901			(19		)	(2	)%
Data processing and communications	2,213			1,924			289			15	%
Legal and professional services	1,609			1,413			196			14	%
Taxes, license and fees	1,355			865			490			57	%
Regulatory premiums	860			2,195			(1,335		)	(61	)%
Net cost of operation of noncovered other real estate owned	2,693			2,118			575			27	%
Net benefit of operation of covered other real estate owned	(1,783		)	(2,560		)	777			(30	)%
Amortization of intangibles	1,150			984			166			17	%
Other	7,172			5,305			1,867			35	%
Total all other noninterest expense	22,357			18,425			3,932			21	%
Total noninterest expense	$	44,352		$	37,346		$	7,006		19	%

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
	2012		2011
	(in thousands)
Postage	$	442	$	529	$	(87	)
Software support & maintenance	376		310		66
Supplies	302		267		35
Insurance	271		222		49
ATM Network	308		222		86
Travel	294		215		79
Employee expenses	219		171		48
Sponsorships and charitable contributions	163		130		33
Directors fees	117		115		2
Federal Reserve Bank processing fees	75		79		(4		)
CRA partnership investment expense	71		54		17
Investor relations	28		25		3
Other personal property owned	2,156		—		2,156
Miscellaneous	2,350		2,966		(616		)
Total other noninterest expense	$	7,172	$	5,305	$	1,867

33

In managing our business, we review the efficiency ratio, on a fully taxable-equivalent basis. Our efficiency ratio (noninterest expense, excluding net cost of operation of other real estate and FDIC clawback liability expense, divided by the sum of net interest income and noninterest income on a tax equivalent basis, excluding any gain/loss on sale of investment securities, gain on bank acquisition, incremental accretion income on the acquired loan portfolio and the change in the FDIC indemnification asset) was 71.48% for the first quarter of 2012 compared to 73.33% for the first quarter 2011.

Income Taxes

We recorded an income tax provision of $3.2 million for the first quarter of 2012, compared to a provision of $2.3 million for the same period in 2011. Our effective tax rate remains lower than the statutory tax rate due to our nontaxable income generated from tax-exempt loans and municipal bonds, investments in bank owned life insurance, and low income housing credits. For additional information, please refer to the Company's annual report on Form 10-K for the year ended December 31, 2011.

FINANCIAL CONDITION

Total assets increased $29.5 million or 0.6%, to $4.82 billion as of March 31, 2012, compared to $4.79 billion as of December 31, 2011.

Investment Securities

At March 31, 2012, the Company held investment securities totaling $999.2 million compared to $1.03 billion at December 31, 2011. All of our securities are classified as available for sale and carried at fair value. The decrease in the investment securities portfolio from year-end is due to $49.7 million in maturities of securities in the portfolio, partially offset by $30.2 million in purchases. These 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.

At March 31, 2012, the market value of securities available for sale had an unrealized gain, net of tax, of $37.9 million compared to an unrealized gain, net of tax, of $40.6 million at December 31, 2011. The decrease in the unrealized gain was the result of the fluctuations in interest rates. The Company does carry $189.1 million of investment securities with unrealized losses of $1.5 million; however, the Company does not consider these investment securities to be other-than-temporarily impaired. In the future, if the impairment is judged to be other-than-temporary, the cost basis of the individual impaired securities will be written down to fair value; the amount of the write-down could be included in earnings as a realized loss.

The Company continues to carry one municipal bond with a par value of $3.0 million that was determined to be other-than-temporarily impaired during December 2011. The bond was issued by the Greater Wenatchee Regional Events Center Public Facilities District. At year-end 2011, the present value of expected future cash flows for that obligation was determined to be zero and, accordingly, the Company recorded a $3.0 million impairment charge to earnings during the fourth quarter of 2011. Subsequent to quarter-end, in April 2012, voters in the districts that comprise the Public Facilities District approved a 0.1 percent sales tax increase. That increase, plus a 0.2 percent sales tax increase in the city of Wenatchee, is expected to facilitate full repayment of the municipal obligation in approximately six to eight months. Any such repayment will be recorded upon receipt to earnings.

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

	March 31, 2012		December 31, 2011
	(in thousands)
Securities Available for Sale
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	669,584	$	695,954
State and municipal securities	283,552		285,763
U.S. government and government-sponsored enterprise securities	42,752		43,063
Other securities	3,325		3,330
Total	$	999,213	$	1,028,110

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

34

Credit Risk Management

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, type of borrower and by limiting the aggregation of debt limits to a single borrower. The monitoring process for our loan portfolio includes periodic reviews of individual loans with risk ratings assigned to each loan. We review these loans to assess the ability of the borrower to service all of its 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 review these types of loans for impairment in accordance with the Receivables topic of the FASB ASC. Impaired loans are considered for nonaccrual status and will typically remain as such until all principal and interest payments are brought current and the prospects for future payments in accordance with the loan agreement appear relatively certain.

Loan policies, credit quality criteria, loan portfolio guidelines and other credit approval processes are established under the guidance of our Chief Credit Officer and approved, as appropriate, by the Board of Directors. The Company’s Credit Administration department and loan committee have the responsibility for administering the credit approval process. As another part of its control process, we use an independent internal credit review and examination function to provide 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 monitoring to assess continued performance and proper risk assessment.

Loan Portfolio Analysis

We are a full service commercial bank, originating a wide variety of loans, but concentrating our 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, 2012			% of Total		December 31, 2011			% of Total
	(dollars in thousands)
Commercial business	$	1,079,356		45.5	%	$	1,031,721		41.5	%
Real estate:
One-to-four family residential	58,843			2.5	%	64,491			2.6	%
Commercial and multifamily residential	992,403			41.8	%	998,165			41.5	%
Total real estate	1,051,246			44.3	%	1,062,656			44.1	%
Real estate construction:
One-to-four family residential	48,559			2.0	%	50,208			3.5	%
Commercial and multifamily residential	35,567			1.5	%	36,768			1.6	%
Total real estate construction	84,126			3.5	%	86,976			5.1	%
Consumer	169,955			7.2	%	183,235			9.5	%
Subtotal	2,384,683			100.5	%	2,364,588			100.2	%
Less: Net unearned income	(12,865		)	(0.5	)%	(16,217		)	(0.2	)%
Total noncovered loans, net of unearned income	2,371,818			100.0	%	2,348,371			100.0	%
Less: Allowance for loan and lease losses	(52,283		)			(53,041		)
Noncovered loans, net	2,319,535					2,295,330
Covered loans, net of allowance of ($20,504) and ($4,944), respectively	501,613					531,929
Total loans, net	$	2,821,148				$	2,827,259
Loans Held for Sale	$	2,066				$	2,148

35

Total noncovered loans increased $20.1 million, or 0.8%, from year-end 2011. Growth was centered in the commercial business loan segment which increased $47.6 million. Growth in this segment was broad-based led by agriculture and fishing, healthcare, wholesalers and manufacturing. The growth in business loans was offset by contraction in the other portfolio segments, notably the consumer portfolio segment which declined $13.2 million. Most of this decline was in home equity loans. The noncovered loan portfolio continues to be diversified, with the intent to mitigate risk by minimizing concentration in any one segment.

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. 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.

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: Our banking subsidiary is not involved with loans to foreign companies or foreign countries.

For additional information on our noncovered 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.

Covered Loans: Covered 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. These loans are generically referred to as covered because they are generally subject to one of the loss-sharing agreements between the Company and the FDIC. There was no loss-sharing agreement in the Bank of Whitman transaction, so loans acquired in that transaction are noncovered loans. The loss-sharing agreements relating to the 2010 FDIC-assisted transactions limit the Company’s losses to 20% of the contractual balance outstanding up to a stated threshold amount of $206.0 million for Columbia River Bank and $66.0 million for American Marine Bank. If losses exceed the stated threshold, the Company’s share of the remaining losses decreases to 5%. The loss-sharing agreements relating to the 2011 FDIC-assisted transactions limit the Company's losses to 20% of the contractual balance outstanding. The loss-sharing provisions of the 2011 agreements for commercial and single family residential mortgage loans are in effect for five years and ten years, respectively, from the acquisition dates and the loss recovery provisions for such loans are in effect for eight years and ten years, respectively, from the acquisition dates.

36

The following table is a rollforward of acquired, impaired loans accounted for under ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality for the three months ended March 31, 2012:

	Contractual			Nonaccretable			Accretable			Carrying
	Cash Flows			Difference			Yield			Amount
	(in thousands)
Balance at January 1, 2012	$	835,556		$	(91,317	)	$	(259,669	)	$	484,570
Established through acquisitions	—			—			—			—
Principal reductions	(37,273		)	—			—			(37,273		)
Accretion of loan discount	—			—			27,658			27,658
Changes in contractual and expected cash flows due to re-measurement	(23,891		)	17,363			(9,465		)	(15,993		)
Reduction due to removals	(5,217		)	860			1,799			(2,558		)
Balance at March 31, 2012	$	769,175		$	(73,094	)	$	(239,677	)	$	456,404

Nonperforming Assets

Nonperforming assets consist of: (i) nonaccrual loans; (ii) other real estate owned; and (iii) other personal property owned.

Nonaccrual noncovered 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 a nonaccrual basis, which occurs when there are serious doubts about the collectability of principal or interest. Generally our policy is to discontinue the accrual of interest on all loans past due 90 days or more and place them on nonaccrual status. When a noncovered loan is placed on nonaccrual status, any accrued but unpaid interest on that date is removed from interest income.

Covered loans: We consider covered loans to be performing due to the application of the yield accretion method under ASC Topic 310-30. Topic 310-30 allows us to aggregate credit-impaired loans acquired in the same fiscal quarter into one or more pools, provided the loans have common risk characteristics. A pool is then accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. The covered loans acquired are and will continue to be subject to the Company’s internal and external credit review and monitoring. Any credit deterioration experienced subsequent to the initial acquisition will result in a provision for loan losses being charged to earnings. These provisions will be mostly offset by an increase to the FDIC loss-sharing asset and will be recognized in noninterest income.

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

	March 31, 2012		December 31, 2011
	(in thousands)
Nonperforming assets, excluding covered assets
Nonaccrual loans:
Commercial business	$	14,791	$	10,243
Real estate:
One-to-four family residential	2,624		2,696
Commercial and multifamily residential	24,872		19,485
Total real estate	27,496		22,181
Real estate construction:
One-to-four family residential	8,793		10,785
Commercial and multifamily residential	5,023		7,067
Total real estate construction	13,816		17,852
Consumer	1,449		3,207
Total nonaccrual loans	57,552		53,483
Noncovered other real estate owned and other personal property owned	21,571		31,905
Total nonperforming noncovered assets	$	79,123	$	85,388

37

At March 31, 2012, nonperforming noncovered assets were $79.1 million, compared to $85.4 million at December 31, 2011. The percent of nonperforming, noncovered assets to period-end noncovered assets at March 31, 2012 was 1.84% compared to 2.02% for December 31, 2011. Nonperforming noncovered assets decreased $6.3 million during the three months ended March 31, 2012, primarily due to declines in noncovered OREO and noncovered OPPO.

Other Real Estate Owned: During the three months ended March 31, 2012, noncovered OREO declined $6.1 million. The following table sets forth activity in noncovered OREO for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Noncovered OREO:
Balance, beginning of period	$	22,893		$	30,991
Transfers in, net of write-downs ($118 and $91, respectively)	3,803			2,042
OREO improvements	11			251
Additional OREO write-downs	(1,722		)	(1,910		)
Proceeds from sale of OREO property	(7,829		)	(5,372		)
Gain (loss) on sale of OREO	(412		)	79
Total noncovered OREO, end of period	$	16,744		$	26,081

Other Personal Property Owned: During the three months ended March 31, 2012, noncovered OPPO declined $4.2 million as a result of $2.0 million of OPPO sales and $2.2 million in write-downs recorded as expense in the consolidated statements of income.

Allowance for Loan and Lease Losses

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 credit losses 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 periodically 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, including economic and business condition reviews. Factors which influenced management’s judgment in determining the amount of the additions to the ALLL charged to operating expense include the following as of the applicable balance sheet dates:

1. Existing general economic and business conditions affecting our market place

2. Credit quality trends

3. Historical loss experience

4. Seasoning of the loan portfolio

5. Bank regulatory examination results

6. Findings of internal credit examiners

7. Duration of current business cycle

8. 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. 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.

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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 7 to the Consolidated Financial Statements presented elsewhere in this report.

At March 31, 2012, our allowance for loan and lease losses for noncovered loans was $52.3 million, or 2.20% of total noncovered loans (excluding loans held for sale) and 90.84% of nonperforming, noncovered loans. This compares with an allowance of $53.0 million, or 2.26% of the total loan portfolio (excluding loans held for sale), and 99.17% of nonperforming, noncovered loans at December 31, 2011.

The following table provides an analysis of the Company’s allowance for loan and lease losses for noncovered loans at the dates and the periods indicated:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Beginning balance	$	53,041		$	60,993
Charge-offs:
Commercial business	(2,359		)	(3,928		)
One-to-four family residential	(116		)	(102		)
Commercial and multifamily residential	(2,678		)	(365		)
One-to-four family residential construction	(204		)	(1,216		)
Commercial and multifamily residential construction	—			(487		)
Consumer	(1,093		)	(925		)
Total charge-offs	(6,450		)	(7,023		)
Recoveries
Commercial business	658			105
One-to-four family residential	43			—
Commercial and multifamily residential	71			73
One-to-four family residential construction	47			1,104
Consumer	373			63
Total recoveries	1,192			1,345
Net charge-offs	(5,258		)	(5,678		)
Provision charged to expense	4,500			—
Ending balance	$	52,283		$	55,315
Total noncovered loans, net at end of period, excluding loans held of sale (1)	$	2,371,818		$	1,884,206
Allowance for loan and lease losses to period-end noncovered loans	2.20		%	2.94		%
Allowance for unfunded commitments and letters of credit
Beginning balance	$	1,535		$	1,165
Net changes in the allowance for unfunded commitments and letters of credit	130			495
Ending balance	$	1,665		$	1,660

______________________________

 (1) Excludes loans held for sale.

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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 from the covered assets due to an increase in expected credit losses will increase the FDIC indemnification asset and any increase in expected future cash flows from the covered assets due to a decrease in expected credit losses will decrease the FDIC indemnification asset. Increases and decreases to the FDIC loss-sharing asset are recorded as adjustments to noninterest income.

At March 31, 2012, the FDIC loss-sharing asset was $159.1 million which was comprised of a $135.6 million FDIC indemnification asset and a $23.5 million FDIC receivable. The FDIC receivable represents the amounts due from the FDIC for claims related to covered losses the Company has incurred less amounts due back 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, 2012 and 2011:

	Three Months Ended
	March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	175,071		$	205,991
Adjustments not reflected in income
Cash received from the FDIC	(14,804		)	—
FDIC reimbursable losses, net	462			1,836
Adjustments reflected in income
Amortization, net	(13,873		)	(13,569		)
Impairment	12,548			(338		)
Sale of other real estate	(2,067		)	(867		)
Other	1,724			—
Balance at end of period	$	159,061		$	193,053

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 Seattle, the FRB of San Francisco, and wholesale 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.

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 $100,000) increased $81.2 million, or approximately 2%, since year-end 2011 while certificates of deposit greater than $100,000 decreased $14.8 million, or approximately 6%, to $247.9 million from year-end 2011.

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. At March 31, 2012 brokered and other wholesale deposits (excluding public deposits) totaled $25.7 million, or 1% of total deposits, compared to $42.1 million at year-end 2011. The brokered deposits have varied maturities.

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

	March 31, 2012				December 31, 2011				March 31, 2011
	Balance		% of Total		Balance		% of Total		Balance		% of Total
	(in thousands)
Core deposits:
Demand and other non-interest bearing	$	1,159,308	30.0	%	$	1,156,610	30.3	%	$	892,751	26.8	%
Interest bearing demand	794,157		20.5	%	735,340		19.3	%	695,858		20.9	%
Money market	1,053,120		27.2	%	1,031,664		27.0	%	935,236		28.0	%
Savings	296,138		7.7	%	283,416		7.4	%	219,777		6.6	%
Certificates of deposit less than $100,000	288,939		7.5	%	303,405		8.0	%	284,276		8.5	%
Total core deposits	3,591,662		92.9	%	3,510,435		92.0	%	3,027,898		90.8	%
Certificates of deposit greater than $100,000	247,886		6.4	%	262,731		6.9	%	257,425		7.7	%
Certificates of deposit insured by CDARS®	25,672		0.7	%	42,080		1.1	%	50,375		1.5	%
Subtotal	3,865,220		100.0	%	3,815,246		100.0	%	3,335,698		100.0	%
Premium resulting from acquisition date fair value adjustment	225				283				515
Total deposits	$	3,865,445			$	3,815,529			$	3,336,213

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, residential, commercial and commercial real estate loans. At March 31, 2012, we had FHLB advances of $113.9 million, before acquisition date fair value adjustments, compared to $118.1 million at December 31, 2011.

We also utilize wholesale repurchase agreements as a supplement to our funding sources. Our wholesale repurchase agreements are secured by mortgage-backed securities. At March 31, 2012 and December 31, 2011 we had repurchase agreements of $25.0 million. Management anticipates we will continue to rely on FHLB advances, FRB borrowings, and wholesale repurchase agreements in the future and we will use those funds primarily to make loans and purchase securities.

Contractual Obligations & Commitments

We are party to many contractual financial obligations, including repayment of borrowings, operating and equipment lease payments, commitments to extend credit and investments in affordable housing partnerships. At March 31, 2012, we had commitments to extend credit of $711.6 million compared to $709.9 million at December 31, 2011.

Capital Resources

Shareholders’ equity at March 31, 2012 was $752.7 million, down from $759.3 million at December 31, 2011. Shareholders’ equity was 15.6% and 15.9% of total period-end assets at March 31, 2012 and December 31, 2011, respectively.

Capital Ratios: Banking regulations require bank holding companies to maintain a minimum “leverage” ratio of core capital to adjusted quarterly average total assets of at least 3%. In addition, banking regulators have adopted risk-based capital guidelines, under which risk percentages are assigned to various categories of assets and off-balance sheet items to calculate a risk-adjusted capital ratio. Tier I capital generally consists of preferred stock, common shareholders’ equity, and trust preferred obligations, less goodwill and certain identifiable intangible assets, while Tier II capital includes the allowance for loan losses and subordinated debt, both subject to certain limitations. Regulatory minimum risk-based capital guidelines require Tier I capital of 4% of risk-adjusted assets and total capital (combined Tier I and Tier II) of 8% to be considered “adequately capitalized”.

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Federal Deposit Insurance Corporation 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 Tier I risk-adjusted capital ratio of at least 6%, 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 subsidiary qualify as “well-capitalized” at March 31, 2012 and December 31, 2011.

	Company				Columbia Bank				Requirements
	March 31, 2012		December 31, 2011		March 31, 2012		December 31, 2011		Adequately capitalized		Well- Capitalized
Total risk-based capital ratio	21.10	%	21.05	%	18.76	%	18.55	%	8.00	%	10.00	%
Tier 1 risk-based capital ratio	19.83	%	19.79	%	17.50	%	17.29	%	4.00	%	6.00	%
Leverage ratio	12.81	%	12.96	%	11.45	%	11.45	%	4.00	%	5.00	%

Stock Repurchase Program

In October 2011, the Board of Directors approved a stock repurchase program authorizing the Company to repurchase up to 2 million shares of its outstanding shares of common stock. The Company intends to purchase the shares from time to time in the open market or in private transactions, under conditions which allow such repurchases to be accretive to earnings per share while maintaining capital ratios that exceed the guidelines for a well-capitalized financial institution. This newly authorized repurchase program supersedes and replaces the prior stock repurchase program adopted in February 2002. No shares were repurchased under the stock repurchase program during the first three months of 2012.

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, 2012, 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, 2011. For additional information, refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s 2011 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 Controls 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 controls over financial reporting.

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PART II - OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

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

ITEM 1A. RISK FACTORS

Our business exposes us to certain risks. The following is a discussion of what we currently believe are the most significant risks and uncertainties that may affect our business, financial condition and future results.

A protracted slow or fragile economic recovery could adversely affect our future results of operations or market price of our stock.

The national and global economy and the financial services sector in particular continue to face significant challenges. We cannot accurately predict how quickly or strongly the economy will recover from the recent recession, which has adversely impacted the markets we serve. The U.S. economy has also experienced substantial volatility in the financial markets. Any further deterioration in the economies of the nation as a whole or in our markets would have an adverse effect, which could be material, on our business, financial condition, results of operations and prospects, and could also cause the market price of our stock to decline. While it is impossible to predict how long adverse economic conditions may exist, a slow or fragile recovery could continue to present risks for some time for the industry and our company.

Economic conditions in the market areas we serve may continue to adversely impact our earnings and could increase our credit risk associated with our loan portfolio and the value of our investment portfolio.

Substantially all of our loans are to businesses and individuals in Washington and Oregon, and a continuing decline in the economies of these market areas could have a material adverse effect on our business, financial condition, results of operations and prospects. Housing prices have declined and unemployment is a continued concern in both Washington and Oregon. A further deterioration in the market areas we serve could result in the following consequences, any of which could have an adverse impact, which could be material, on our business, financial condition, results of operations and prospects:

• commercial and consumer loan delinquencies may increase;

• problem assets and foreclosures may increase;

• collateral for loans made may decline further in value, in turn reducing customers’ borrowing power, reducing the value of assets and collateral associated with existing loans;

• certain securities within our investment portfolio could become other than temporarily impaired, requiring a write-down through earnings to fair value, thereby reducing equity;

• low cost or non-interest bearing deposits may decrease; and

• demand for our loan and other products and services may decrease.

Our loan portfolio mix, which has a concentration of loans secured by real estate, could result in increased credit risk in a challenging economy.

Our loan portfolio is concentrated in commercial real estate and commercial business loans. These types of loans generally are viewed as having more risk of default than residential real estate loans or certain other types of loans or investments. In fact, the FDIC has issued pronouncements alerting banks of its concern about heavy loan concentrations. Because our loan portfolio contains commercial real estate and commercial business loans with relatively large balances, the deterioration of one or a few of these loans may cause a significant increase in our non-performing loans. An increase in non-performing loans could result in a loss of earnings from these loans, an increase in the provision for loan losses, or an increase in loan charge-offs, any of which could have a material adverse impact on our results of operations and financial condition.

A further downturn in the economies or real estate values in the markets we serve could have a material adverse effect on both borrowers’ ability to repay their loans and the value of the real property securing such loans. Our ability to recover on defaulted loans would then be diminished, and we would be more likely to suffer losses on defaulted loans.

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Our Allowance for Loan and Lease Losses (“ALLL”) may not be adequate to cover future loan losses, which could adversely affect earnings.

We maintain an ALLL in an amount that we believe is adequate to provide for losses inherent in our loan portfolio. While we strive to carefully monitor credit quality and to identify loans that may become non-performing, at any time there are loans in the portfolio that could result in losses, but that have not been identified as non-performing or potential problem loans. We cannot be sure that we will be able to identify deteriorating loans before they become non-performing assets, or that we will be able to limit losses on those loans that have been identified. Additionally, the process for determining the ALLL requires different, subjective and complex judgments about the future impact from current economic conditions that might impair the ability of borrowers to repay their loans. As a result, future significant increases to the ALLL may be necessary.

Future increases to the ALLL may be required based on changes in the composition of the loans comprising the portfolio, deteriorating values in underlying collateral (most of which consists of real estate) and changes in the financial condition of borrowers, such as may result from changes in economic conditions, or as a result of actual future events differing from assumptions used by management in determining the ALLL. Additionally, banking regulators, as an integral part of their supervisory function, periodically review our ALLL. These regulatory agencies may require us to increase the ALLL. Any increase in the ALLL would have an adverse effect, which could be material, on our financial condition and results of operations.

Nonperforming assets take significant time to resolve and adversely affect our results of operations and financial condition.

Our nonperforming assets adversely affect our net income in various ways. Until economic and market conditions improve to pre-recession levels, we expect to continue to incur additional losses relating to elevated levels of nonperforming loans. We do not record interest income on nonaccrual loans, thereby adversely affecting our income, and increasing loan administration costs. Assets acquired by foreclosure or similar proceedings are recorded at the lower of carrying value or fair value less estimated costs to sell. The valuation of these foreclosed assets is periodically updated and resulting losses, if any, are charged to earnings in the period in which they are identified. An increase in the level of nonperforming assets also increases our risk profile and may impact the capital levels our regulators believe is appropriate in light of such risks. We utilize various techniques such as loan sales, workouts, and restructurings to manage our problem assets. Decreases in the value of these problem assets, the underlying collateral, or in the borrowers’ performance or financial condition, could adversely affect our business, results of operations and financial condition. In addition, the resolution of nonperforming assets requires significant commitments of time from management and staff, which can be detrimental to performance of their other responsibilities. We may experience further increases in nonperforming loans in the future.

Our acquisitions and the integration of acquired businesses may not result in all of the benefits anticipated, and future acquisitions may be dilutive to current shareholders.

We have in the past and may in the future seek to grow our business by acquiring other businesses. Our acquisitions may not have the anticipated positive results, including results relating to: correctly assessing the asset quality of the assets being acquired; the total cost of integration including management attention and resources; the time required to complete the integration successfully; the amount of longer-term cost savings; being able to profitably deploy funds acquired in an acquisition; or the overall performance of the combined entity.

We also may encounter difficulties in obtaining required regulatory approvals and unexpected contingent liabilities can arise from the businesses we acquire. Integration of an acquired business can be complex and costly, sometimes including combining relevant accounting and data processing systems and management controls, as well as managing relevant relationships with employees, clients, suppliers and other business partners. Integration efforts could divert management attention and resources, which could adversely affect our operations or results.

Given the continued market volatility and uncertainty, notwithstanding our loss-sharing arrangements with the FDIC, we may continue to experience increased credit costs or need to take additional markdowns and allowances for loan losses on the assets and loans acquired that could adversely affect our financial condition and results of operations in the future.

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We may also experience difficulties in complying with the technical requirements of our loss-sharing agreements with the FDIC, which could result in some assets which we acquire in FDIC-assisted transactions losing their coverage under such agreements. As our integration efforts continue in connection with these transactions, other unanticipated costs, including the diversion of personnel, or losses, may be incurred.

Acquisitions may also result in business disruptions that cause us to lose customers or cause customers to remove their accounts from us and move their business to competing financial institutions. It is possible that the integration process related to acquisitions could result in the disruption of our ongoing businesses or inconsistencies in standards, controls, procedures and policies that could adversely affect our ability to maintain relationships with clients, customers, depositors and employees. The loss of key employees in connection with an acquisition could adversely affect our ability to successfully conduct our business.

We may engage in future acquisitions involving the issuance of additional common stock and/or cash. Any such acquisitions and related issuances of stock may have a dilutive effect on earnings per share and the percentage ownership of current shareholders. The use of cash as consideration in any such acquisitions could impact our capital position and may require us to raise additional capital.

Furthermore, notwithstanding our recent acquisitions, we cannot provide any assurance as to the extent to which we can continue to grow through acquisitions as this will depend on the availability of prospective target opportunities at valuations we find attractive and the competition for such opportunities from other parties.

Our decisions regarding the fair value of assets acquired, including the FDIC loss-sharing assets, could be inaccurate, which could materially and adversely affect our business, financial condition, results of operations, and future prospects.

Management makes various assumptions and judgments about the collectability of the acquired loans, including the creditworthiness of borrowers and the value of the real estate and other assets serving as collateral for the repayment of secured loans. In FDIC-assisted acquisitions that include loss-sharing agreements, we may record a loss-sharing asset that we consider adequate to absorb the indemnified portion of future losses which may occur in the acquired loan portfolio. The FDIC loss-sharing asset is accounted for on the same basis as the related acquired loans and OREO and primarily represents the present value of the cash flows the Company expects to collect from the FDIC under the loss-sharing agreements.

If our assumptions are incorrect, significant earnings volatility can occur and the balance of the FDIC loss-sharing asset may at any time be insufficient to cover future loan losses, and credit loss provisions may be needed to respond to different economic conditions or adverse developments in the acquired loan portfolio. Any increase in future loan losses could have a material adverse effect on our operating results.

Our management of capital could adversely affect profitability measures, the market price of our common stock, and dilute the holders of our outstanding common stock.

Our capital ratios are significantly higher than historical levels. Until we bring our capital closer to historical ratios, shareholder returns are potentially adversely impacted through earnings per share and return on equity. We may lower our capital ratios through either selective acquisitions that meet our disciplined criteria, organic loan growth, investment in securities, or a combination of all three. Although we are periodically engaged in discussions with potential acquisition candidates, we are not currently a party to any purchase or merger agreement. There can be no assurance that we will be able to negotiate future acquisitions on terms acceptable to us.

Conversely, there may be circumstances under which it would be prudent to consider alternatives for raising capital to take advantage of significant acquisition opportunities or in response to changing economic conditions. Our ability to raise additional capital, if needed, will depend on, among other things, conditions in the capital markets at the time, which are outside our control, and our financial performance. Any capital raising alternatives could dilute the holders of our outstanding common stock and may adversely affect the market price of our common stock.

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If the goodwill we have recorded in connection with acquisitions becomes impaired, it could have an adverse impact on our earnings and capital.

Accounting standards require that we account for acquisitions using the acquisition method of accounting. Under acquisition accounting, if the purchase price of an acquired company exceeds the fair value of its net assets, the excess is carried on the acquirer’s balance sheet as goodwill. In accordance with generally accepted accounting principles, our goodwill is evaluated for impairment on an annual basis or more frequently if events or circumstances indicate that a potential impairment exists. Such evaluation may be based on a variety of factors, including the quoted price of our common stock, market prices of common stock of other banking organizations, common stock trading multiples, discounted cash flows, and data from comparable acquisitions. Future evaluations of goodwill may result in impairment and ensuing write-down, which could be material, resulting in an adverse impact on our earnings and capital.

Fluctuating interest rates could adversely affect our business.

Significant increases in market interest rates on loans, or the perception that an increase may occur, could adversely affect both our ability to originate new loans and our ability to grow. Conversely, decreases in interest rates could result in an acceleration of loan prepayments. An increase in market interest rates could also adversely affect the ability of our floating-rate borrowers to meet their higher payment obligations. If this occurred, it could cause an increase in nonperforming assets and charge offs, which could adversely affect our business.

Further, our profitability is dependent to a large extent upon net interest income, which is the difference (or “spread”) between the interest earned on loans, securities and other interest-earning assets and the interest paid on deposits, borrowings, and other interest-bearing liabilities. Because of the differences in maturities and repricing characteristics of our interest-earning assets and interest-bearing liabilities, changes in interest rates do not produce equivalent changes in interest income earned on interest-earning assets and interest paid on interest-bearing liabilities. Accordingly, fluctuations in interest rates could adversely affect our interest rate spread, and, in turn, our profitability.

The FDIC has increased insurance premiums to restore and maintain the federal deposit insurance fund, which has increased our costs and could adversely affect our business.

In 2009, the FDIC imposed a special deposit insurance assessment of five basis points on all insured institutions, and also required insured institutions to prepay estimated quarterly risk-based assessments through 2012.

The Dodd-Frank Act established 1.35% as the minimum deposit insurance fund reserve ratio. The FDIC has determined that the fund reserve ratio should be 2.0% and has adopted a plan under which it will meet the statutory minimum fund reserve ratio of 1.35% by the statutory deadline of September 30, 2020. The Dodd-Frank Act requires the FDIC to offset the effect on institutions with assets less than $10 billion of the increase in the statutory minimum fund reserve ratio to 1.35% from the former statutory minimum of 1.15%.

Effective April 1, 2011, the FDIC implemented changes to the assessment rules resulting from the Dodd-Frank Act. The adopted regulations: (1) modify the definition of an institution’s deposit insurance assessment base; (2) alter certain adjustments to the assessment rates; (3) revise the assessment rate schedules in light of the new assessment base and altered adjustments; and (4) provide for the automatic adjustment of the assessment rates in the future when the reserve ratio reaches certain milestones.

Despite the FDIC’s actions to restore the deposit insurance fund, the fund will suffer additional losses in the future due to failures of insured institutions. There may be additional significant deposit insurance premium increases, special assessments or prepayments in order to restore the insurance fund’s reserve ratio. Any significant premium increases or special assessments could have a material adverse effect on the Company’s financial condition and results of operations.

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We operate in a highly regulated environment and changes of or increases in, or supervisory enforcement of, banking or other laws and regulations or governmental fiscal or monetary policies could adversely affect us.

We are subject to extensive regulation, supervision and examination by federal and state banking authorities. In addition, as a publicly-traded company, we are subject to regulation by the Securities and Exchange Commission. Any change in applicable regulations or federal, state or local legislation or in policies or interpretations or regulatory approaches to compliance and enforcement, income tax laws and accounting principles could have a substantial impact on us and our operations. Changes in laws and regulations may also increase our expenses by imposing additional fees or taxes or restrictions on our operations. Additional legislation and regulations that could significantly affect our powers, authority and operations may be enacted or adopted in the future, which could have a material adverse effect on our financial condition and results of operations. Failure to appropriately comply with any such laws, regulations or principles could result in sanctions by regulatory agencies or damage to our reputation, all of which could adversely affect our business, financial condition or results of operations.

In that regard, the Dodd-Frank Wall Street Reform and Consumer Protection Act was enacted in July 2010. Among other provisions, the legislation (i) created a new Bureau of Consumer Financial Protection with broad powers to regulate consumer financial products such as credit cards and mortgages, (ii) created a Financial Stability Oversight Council comprised of the heads of other regulatory agencies, (iii) will lead to new capital requirements from federal banking agencies, (iv) places new limits on electronic debit card interchange fees and (v) requires the Securities and Exchange Commission and national stock exchanges to adopt significant new corporate governance and executive compensation reforms. The new legislation and regulations are expected to increase the overall costs of regulatory compliance.

Further, regulators have significant discretion and authority to prevent or remedy unsafe or unsound practices or violations of laws or regulations by financial institutions and holding companies in the performance of their supervisory and enforcement duties. Recently, these powers have been utilized more frequently due to the serious national, regional and local economic conditions we are facing. The exercise of regulatory authority may have a negative impact on our financial condition and results of operations. Additionally, our business is affected significantly by the fiscal and monetary policies of the U.S. federal government and its agencies, including the Federal Reserve Board.

We cannot accurately predict the full effects of recent legislation or the various other governmental, regulatory, monetary and fiscal initiatives which have been and may be enacted on the financial markets, on the Company and on the Bank. The terms and costs of these activities, or any worsening of current financial market and economic conditions, could materially and adversely affect our business, financial condition, results of operations, and the trading price of our common stock.

We may be required, in the future, to recognize impairment with respect to investment securities, including the FHLB stock we hold.

Our securities portfolio currently includes securities with unrecognized losses. We may continue to observe declines in the fair market value of these securities. Securities issued by certain states and municipalities have recently come under scrutiny due to concerns about credit quality. Although management believes the credit quality of the Company’s state and municipal securities portfolio to be good, there can be no assurance that the credit quality of these securities will not decline in the future. We evaluate the securities portfolio for any other than temporary impairment each reporting period, as required by generally accepted accounting principles in the United States of America, and as of December 31, 2011, we recognized one municipal bond as being other-than-temporarily impaired. For further information regarding this other-than-temporarily impaired security see Note 4 to the Consolidated Financial Statements in "Item 8. Financial Statements and Supplementary Data" of our Annual Report on Form 10-K for the year ended December 31, 2011. There can be no assurance, however, that future evaluations of the securities portfolio will not require us to recognize further impairment charges with respect to these and other holdings. For example, it is possible that government-sponsored programs to allow mortgages to be refinanced to lower rates could materially adversely impact the yield on our portfolio of mortgage-backed securities, since a significant portion of our investment portfolio is composed of such securities.

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In addition, as a condition to membership in the FHLB, we are required to purchase and hold a certain amount of FHLB stock. Our stock purchase requirement is based, in part, upon the outstanding principal balance of advances from the FHLB. At March 31, 2012 we had stock in the FHLB totaling $22.2 million. The FHLB stock held by us is carried at cost and is subject to recoverability testing under applicable accounting standards. The FHLB has discontinued the repurchase of their stock and discontinued the distribution of dividends. As of March 31, 2012, we did not recognize an impairment charge related to our FHLB stock holdings. There can be no assurance, however, that future negative changes to the financial condition of the FHLB may not require us to recognize an impairment charge with respect to such holdings.

Substantial competition in our market areas could adversely affect us.

Commercial banking is a highly competitive business. We compete with other commercial banks, savings and loan associations, credit unions, finance, insurance and other non-depository companies operating in our market areas. We also experience competition, especially for deposits, from Internet-based banking institutions, which have grown rapidly in recent years. We are subject to substantial competition for loans and deposits from other financial institutions. Some of our competitors are not subject to the same degree of regulation and restriction as we are and/or have greater financial resources than we do. Some of our competitors have severe liquidity issues, which could impact the pricing of deposits in our marketplace. If we are unable to effectively compete in our market areas, our business, results of operations and prospects could be adversely affected.

Changes in accounting standards could materially impact our financial statements.

From time to time the Financial Accounting Standards Board and the SEC change the financial accounting and reporting standards that govern the preparation of our financial statements. These changes can be very difficult to predict and can materially impact how we record and report our financial condition and results of operations. In some cases, we could be required to apply a new or revised standard retroactively, resulting in our restating prior period financial statements.

There can be no assurance as to the level of dividends we may pay on our common stock.

Holders of our common stock are only entitled to receive such dividends as our Board of Directors may declare out of funds legally available for such payments. Although we have historically declared cash dividends on our common stock, we are not required to do so and there may be circumstances under which we would eliminate our common stock dividend in the future. This could adversely affect the market price of our common stock.

Significant legal or regulatory actions could subject us to substantial uninsured liabilities and reputational harm and have a material adverse effect on our business and results of operations.

We are from time to time subject to claims and proceedings related to our operations. These claims and legal actions, which could include supervisory or enforcement actions by our regulators, or criminal proceedings by prosecutorial authorities, could involve large monetary claims, including civil money penalties or fines imposed by government authorities, and significant defense costs. To mitigate the cost of some of these claims, we maintain insurance coverage in amounts and with deductibles that we believe are appropriate for our operations. However, our insurance coverage does not cover any civil money penalties or fines imposed by government authorities and may not cover all other claims that might be brought against us or continue to be available to us at a reasonable cost. As a result, we may be exposed to substantial uninsured liabilities, which could adversely affect our business, prospects, results of operations and financial condition. Substantial legal liability or significant regulatory action against us could have material adverse financial effects or cause significant reputational harm to us, which in turn could seriously harm our business prospects.

48

We are subject to a variety of operational risks, including reputational risk, legal risk and compliance risk, and the risk of fraud or theft by employees or outsiders, which may adversely affect our business and results of operations.

We are exposed to many types of operational risks, including reputational risk, legal and compliance risk, the risk of fraud or theft by employees or outsiders, and unauthorized transactions by employees or operational errors, including clerical or record-keeping errors or those resulting from faulty or disabled computer or telecommunications systems.

If personal, non-public, confidential or proprietary information of customers in our possession were to be mishandled or misused, we could suffer significant regulatory consequences, reputational damage and financial loss. Such mishandling or misuse could include, for example, if such information were erroneously provided to parties who are not permitted to have the information, either by fault of our systems, employees, or counterparties, or where such information is intercepted or otherwise inappropriately taken by third parties.

Because the nature of the financial services business involves a high volume of transactions, certain errors may be repeated or compounded before they are discovered and successfully rectified. Our necessary dependence upon automated systems to record and process transactions and our large transaction volume may further increase the risk that technical flaws or employee tampering or manipulation of those systems will result in losses that are difficult to detect. We also may be subject to disruptions of our operating systems arising from events that are wholly or partially beyond our control (for example, computer viruses or electrical or telecommunications outages, or natural disasters, disease pandemics or other damage to property or physical assets) which may give rise to disruption of service to customers and to financial loss or liability. We are further exposed to the risk that our external vendors may be unable to fulfill their contractual obligations (or will be subject to the same risk of fraud or operational errors by their respective employees as we are) and to the risk that we (or our vendors’) business continuity and data security systems prove to be inadequate. The occurrence of any of these risks could result in a diminished ability of us to operate our business (for example, by requiring us to expend significant resources to correct the defect), as well as potential liability to clients, reputational damage and regulatory intervention, which could adversely affect our business, financial condition and results of operations, perhaps materially.

We have various anti-takeover measures that could impede a takeover.

Our articles of incorporation include certain provisions that could make it more difficult to acquire us by means of a tender offer, a proxy contest, merger or otherwise. These provisions include certain non-monetary factors that our board of directors may consider when evaluating a takeover offer, and a requirement that any “Business Combination” be approved by the affirmative vote of no less than 66 2/3% of the total shares attributable to persons other than a “Control Person.” These provisions may have the effect of lengthening the time required for a person to acquire control of us through a tender offer, proxy contest or otherwise, and may deter any potentially hostile offers or other efforts to obtain control of us. This could deprive our shareholders of opportunities to realize a premium for their Columbia common stock, even in circumstances where such action is favored by a majority of our shareholders.

49

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

(a) Not applicable

(b) Not applicable

(c) Not applicable

Item 3. DEFAULTS UPON SENIOR SECURITIES

None.

Item 4. MINE SAFETY DISCLOSURES

Not applicable.

Item 5. OTHER INFORMATION

None.

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, 2012 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.

*    Furnished herewith

50

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 7, 2012	By	/s/ MELANIE J. DRESSEL
			Melanie J. Dressel
			President and Chief Executive Officer (Principal Executive Officer)
Date:	May 7, 2012	By	/s/ GARY R. SCHMINKEY
			Gary R. Schminkey
			Executive Vice President and Chief Financial Officer (Principal Financial and Accounting Officer)

51

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, 2012 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.

*    Furnished herewith

52

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 7, 2012

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Gary R. Schminkey, 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/ GARY R. SCHMINKEY

Gary R. Schminkey
Executive Vice President and
Chief Financial Officer

Date: May 7, 2012

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, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Melanie J. Dressel, President and Chief Executive Officer, and Gary R. Schminkey, 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/ GARY R. SCHMINKEY

Gary R. Schminkey

Executive Vice President and

Chief Financial Officer

Columbia Banking System, Inc.

Dated: May 7, 2012

XML

Noncovered Loans (Analysis of Impaired Loans) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	$ 2,317,554	$ 2,290,083
Recorded Investment of Loans Individually Measured for Specific Impairment	54,264	58,288
Average Recorded Investment Impaired Loans	56,276	71,060
Interest Recognized on Impaired Loans	891	719
Impaired Loans Without Recorded Allowance [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	46,390	53,062
Unpaid Principal Balance	78,312	81,922
Impaired Loans With Recorded Allowance [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	7,874	5,226
Unpaid Principal Balance	9,490	7,329
Related Allowance	1,785	1,484
Commercial Portfolio Segment [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	1,017,869	972,531
Recorded Investment of Loans Individually Measured for Specific Impairment	10,533	8,886
Average Recorded Investment Impaired Loans	9,709	15,578
Interest Recognized on Impaired Loans	309	511
Commercial Portfolio Segment [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	47,124	47,309
Recorded Investment of Loans Individually Measured for Specific Impairment	141	97
Average Recorded Investment Impaired Loans	119	138
Interest Recognized on Impaired Loans	1	0
Commercial Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	8,835	5,960
Unpaid Principal Balance	16,824	12,109
Commercial Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Commercial Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,698	2,926
Unpaid Principal Balance	1,698	2,927
Related Allowance	451	954
Commercial Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	141	97
Unpaid Principal Balance	141	97
Related Allowance	141	97
Real Estate Portfolio Segment [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	56,823	61,584
Recorded Investment of Loans Individually Measured for Specific Impairment	2,053	2,479
Average Recorded Investment Impaired Loans	2,266	2,494
Interest Recognized on Impaired Loans	1	0
Real Estate Portfolio Segment [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	42,369	46,882
Recorded Investment of Loans Individually Measured for Specific Impairment	3,011	3,799
Average Recorded Investment Impaired Loans	3,405	4,263
Interest Recognized on Impaired Loans	0	0
Real Estate Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	549,035	527,362
Recorded Investment of Loans Individually Measured for Specific Impairment	9,535	6,631
Average Recorded Investment Impaired Loans	8,083	8,881
Interest Recognized on Impaired Loans	115	59
Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	366,457	390,225
Recorded Investment of Loans Individually Measured for Specific Impairment	13,739	14,564
Average Recorded Investment Impaired Loans	14,152	15,254
Interest Recognized on Impaired Loans	107	18
Real Estate Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,698	1,897
Unpaid Principal Balance	1,848	2,136
Real Estate Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	3,011	3,799
Unpaid Principal Balance	6,052	6,773
Real Estate Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	4,956	5,944
Unpaid Principal Balance	8,556	7,700
Real Estate Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	12,656	14,290
Unpaid Principal Balance	18,378	18,524
Real Estate Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	355	582
Unpaid Principal Balance	368	590
Related Allowance	72	96
Real Estate Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Real Estate Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	4,579	687
Unpaid Principal Balance	4,612	759
Related Allowance	1,087	63
Real Estate Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,083	274
Unpaid Principal Balance	1,203	274
Related Allowance	16	185
Real Estate Construction Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	14,212	13,810
Recorded Investment of Loans Individually Measured for Specific Impairment	5,023	7,067
Average Recorded Investment Impaired Loans	6,045	7,065
Interest Recognized on Impaired Loans	0	0
Real Estate Construction Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	16,008	12,790
Recorded Investment of Loans Individually Measured for Specific Impairment	0	0
Average Recorded Investment Impaired Loans	0	0
Interest Recognized on Impaired Loans	0	0
Real Estate Construction Portfolio Segment [Member] | Land and Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	17,693	17,813
Recorded Investment of Loans Individually Measured for Specific Impairment	5,691	7,388
Average Recorded Investment Impaired Loans	6,539	8,972
Interest Recognized on Impaired Loans	0	116
Real Estate Construction Portfolio Segment [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	20,993	18,847
Recorded Investment of Loans Individually Measured for Specific Impairment	3,487	5,084
Average Recorded Investment Impaired Loans	4,286	4,535
Interest Recognized on Impaired Loans	358	0
Real Estate Construction Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	5,023	7,067
Unpaid Principal Balance	10,367	14,947
Real Estate Construction Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Real Estate Construction Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Land and Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	5,691	6,938
Unpaid Principal Balance	11,026	11,978
Real Estate Construction Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	3,469	5,025
Unpaid Principal Balance	4,209	5,116
Real Estate Construction Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Real Estate Construction Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Real Estate Construction Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Land and Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	450
Unpaid Principal Balance	0	948
Related Allowance	0	0
Real Estate Construction Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	18	59
Unpaid Principal Balance	1,468	1,509
Related Allowance	18	59
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment of Loans Collectively Measured for Contingency Provision	168,971	180,930
Recorded Investment of Loans Individually Measured for Specific Impairment	1,051	2,293
Average Recorded Investment Impaired Loans	1,672	3,880
Interest Recognized on Impaired Loans	0	15
Consumer Portfolio Segment [Member] | Impaired Loans Without Recorded Allowance [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	1,051	2,142
Unpaid Principal Balance	1,052	2,639
Consumer Portfolio Segment [Member] | Impaired Loans With Recorded Allowance [Member]
Financing Receivable, Recorded Investment [Line Items]
Recorded Investment	0	151
Unpaid Principal Balance	0	225
Related Allowance	$ 0	$ 30

XML

Shareholders' Equity (Details) (USD $)	0 Months Ended
	Apr. 25, 2012	Jan. 26, 2012	May 23, 2012
Subsequent Event [Line Items]
Special cash dividend payable		$ 0.29	$ 0.14
Declared quarterly cash dividend	$ 0.08	$ 0.08

XML

Covered Assets and FDIC Loss-sharing Asset (Changes in Accretable Yield for Acquired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Covered Assets And FDIC Loss Sharing Asset
Balance at beginning of period	$ 259,669	$ 256,572
Accretion	(27,658)	(21,303)
Disposals	(1,799)	(3,159)
Reclassifications (to) from nonaccretable difference	9,465	(14,759)
Balance at end of period	$ 239,677	$ 217,351

XML

Derivatives and Hedging Activities (Details) (Not Designated as Hedging Instrument [Member], Interest Rate Contracts [Member], USD $)	Mar. 31, 2012	Mar. 31, 2011
Derivative [Line Items]
Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments	$ 171,300,000	$ 160,300,000
Other Assets [Member]
Derivative [Line Items]
Fair value of asset derivative instruments	14,950,000	9,050,000
Other Liabilities [Member]
Derivative [Line Items]
Fair value of liability derivative instruments	$ 14,950,000	$ 9,050,000

XML

Covered Assets and FDIC Loss-sharing Asset (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Payment Of Clawback If Losses Less Than Stated Levels, Period After Acquisition	10 years 45 days
Percentage of Clawback	50.00%
Percentage of stated threshold	20.00%
Percentage of assets premium	25.00%
Amount of estimated clawback liability	$ 3,600,000
Provision for loan and lease losses	20,185,000	(422,000)
Federal deposit insurance corporation loss-sharing indemnified assets	135,600,000
Federal deposit insurance corporation loss-sharing indemnified assets receivable	23,500,000
FDIC Loss-sharing Asset, Period Increase (Decrease)	12,500,000
Maximum [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Percentage of cumulative loss-sharing	25.00%
Minimum [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Percentage of cumulative loss-sharing	20.00%
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%
Provision for loan and lease losses	15,685,000	(422,000)
Impairment expenses	16,100,000
Negative provision to adjust allowance for loss	$ 400,000
Covered Loans [Member] | 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
Covered Loans [Member] | 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

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Securities (Summary of Gross Unrealized Losses and Fair Value of the Investments with Unrealized Losses) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	$ 189,104	$ 242,695
Less than 12 Months Unrealized Losses	(1,453)	(2,023)
12 Months or More Fair Value	13,964	2,116
12 Months or More Unrealized Losses	(156)	(65)
Total Fair Value	203,068	244,811
Total Unrealized Losses	(1,609)	(2,088)
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	166,921	238,875
Less than 12 Months Unrealized Losses	(1,228)	(1,999)
12 Months or More Fair Value	12,035	196
12 Months or More Unrealized Losses	(101)	(1)
Total Fair Value	178,956	239,071
Total Unrealized Losses	(1,329)	(2,000)
State and Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	8,251	3,820
Less than 12 Months Unrealized Losses	(188)	(24)
12 Months or More Fair Value	960	950
12 Months or More Unrealized Losses	(24)	(34)
Total Fair Value	9,211	4,770
Total Unrealized Losses	(212)	(58)
U.S. Government and Government-Sponsored Enterprise Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	13,932
Less than 12 Months Unrealized Losses	(37)
12 Months or More Fair Value	0
12 Months or More Unrealized Losses	0
Total Fair Value	13,932
Total Unrealized Losses	(37)
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months Fair Value	0	0
Less than 12 Months Unrealized Losses	0	0
12 Months or More Fair Value	969	970
12 Months or More Unrealized Losses	(31)	(30)
Total Fair Value	969	970
Total Unrealized Losses	$ (31)	$ (30)

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Fair Value Accounting and Measurement (Financial Assets Accounted For Fair Value On Nonrecurring Basis) (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 12,416	$ 31,712
Assets, Fair Value Disclosure	20,177	38,653
Losses During Period	7,328	7,108
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	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	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	12,416	31,712
Assets, Fair Value Disclosure	20,177	38,653
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses During Period	2,881	4,908
Covered Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	1,917	31
Covered Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	0	0
Covered Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	0	0
Covered Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	1,917	31
Covered Loans [Member] | Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses During Period	767	14
Noncovered Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	3,510	4,490
OPPO	2,334	2,420
Noncovered Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	0	0
OPPO	0	0
Noncovered Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	0	0
OPPO	0	0
Noncovered Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO	3,510	4,490
OPPO	2,334	2,420
Noncovered Loans [Member] | Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses During Period	1,730	2,001
Noncovered Loans [Member] | Other Personal Property Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Losses During Period	$ 1,950	$ 185

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Covered Assets and FDIC Loss-sharing Asset (Tables)

3 Months Ended

Mar. 31, 2012

Covered Assets And FDIC Loss Sharing Asset [Line Items]

Analysis and Allowance for Losses on Covered Loans

The following is an analysis of our covered loans, net of related allowance for losses on covered loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012					December 31, 2011
	Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses		Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses
	(dollars in thousands)
Commercial business	$	175,623	6.00	$	6,320	$	195,737	6.05	$	977
Real estate:
One-to-four family residential	74,733		5.35	2,947		79,328		5.32	678
Commercial and multifamily residential	299,202		5.57	6,840		311,308		5.65	2,683
Total real estate	373,935			9,787		390,636			3,361
Real estate construction:
One-to-four family residential	44,335		7.25	1,604		54,402		7.32	136
Commercial and multifamily residential	21,330		7.04	711		23,661		7.32	86
Total real estate construction	65,665			2,315		78,063			222
Consumer	51,661		4.71	2,082		56,877		4.84	384
Subtotal of covered loans	666,884			$	20,504	721,313			$	4,944
Less:
Valuation discount resulting from acquisition accounting	144,767					184,440
Allowance for loan losses	20,504					4,944
Covered loans, net of valuation discounts and allowance for loan losses	$	501,613				$	531,929

Changes in Accretable Yield for Acquired Loans

The following table shows the changes in accretable yield for acquired loans for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	259,669		$	256,572
Accretion	(27,658		)	(21,303		)
Disposals	(1,799		)	(3,159		)
Reclassifications from (to) nonaccretable difference	9,465			(14,759		)
Balance at end of period	$	239,677		$	217,351

Covered OREO at Carrying Value

The following table sets forth activity in covered OREO at carrying value for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Covered OREO:
Balance, beginning of period	$	28,126		$	14,443
Transfers in	2,468			3,425
Additional OREO write-downs	(1,505		)	(15		)
Proceeds from sale of OREO property	(8,025		)	(6,959		)
Gain on sale of OREO	3,366			2,633
Total covered OREO, end of period	$	24,430		$	13,527

FDIC Loss-sharing Asset

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	175,071		$	205,991
Adjustments not reflected in income
Cash received from the FDIC	(14,804		)	—
FDIC reimbursable losses, net	462			1,836
Adjustments reflected in income
Amortization, net	(13,873		)	(13,569		)
Impairment	12,548			(338		)
Sale of other real estate	(2,067		)	(867		)
Other	1,724			—
Balance at end of period	$	159,061		$	193,053

Covered Loans [Member]

Covered Assets And FDIC Loss Sharing Asset [Line Items]

Allowance for Credit Losses on Financing Receivables

The changes in the ALLL for covered loans for the three months ended March 31, 2012 and 2011 are summarized as follows:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Beginning balance	$	4,944		$	6,055
Loans charged off	(562		)	—
Recoveries	437			—
Provision charged to expense	15,685			(422		)
Ending balance	$	20,504		$	5,633

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Covered Assets and FDIC Loss-sharing Asset (Covered OREO at Carrying Value) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, beginning of period	$ 51,019
Proceeds from sale of OREO property	(7,829)	(5,372)
Gain on sale of OREO	2,954	2,712
Total OREO, end of period	41,174
Covered Loans [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Balance, beginning of period	28,126	14,443
Transfers in	2,468	3,425
Additional OREO write-down	(1,505)	(15)
Proceeds from sale of OREO property	(8,025)	(6,959)
Gain on sale of OREO	3,366	2,633
Total OREO, end of period	$ 24,430	$ 13,527

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Allowance for Noncovered Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Allowance for Noncovered Loan and Lease Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Allowance for Loan and Lease Losses [Roll Forward]
Provision for loan and lease losses	$ 20,185	$ (422)
Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	53,041	60,993
Loans charged off	(6,450)	(7,023)
Recoveries	1,192	1,345
Provision for loan and lease losses	4,500	0
Ending balance	52,283	55,315
Specific Reserve	1,785	819
General Allocation	50,498	54,496
Commercial Portfolio Segment [Member] | Secured Loans [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24,745	21,811
Loans charged off	(2,354)	(3,287)
Recoveries	614	96
Provision for loan and lease losses	2,537	3,687
Ending balance	25,542	22,307
Specific Reserve	451	247
General Allocation	25,091	22,060
Commercial Portfolio Segment [Member] | Unsecured Loans [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	689	738
Loans charged off	(5)	(84)
Recoveries	44	9
Provision for loan and lease losses	58	(45)
Ending balance	786	618
Specific Reserve	141	73
General Allocation	645	545
Real Estate Portfolio Segment [Member] | One-to-Four Family Residential [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	654	1,100
Loans charged off	(116)	(448)
Recoveries	43	0
Provision for loan and lease losses	108	448
Ending balance	689	1,100
Specific Reserve	72	1
General Allocation	617	1,099
Real Estate Portfolio Segment [Member] | Commercial Land [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	488	634
Loans charged off	(305)	0
Recoveries	0	0
Provision for loan and lease losses	510	(79)
Ending balance	693	555
Specific Reserve	0	58
General Allocation	693	497
Real Estate Portfolio Segment [Member] | Income Property Multifamily [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	9,551	15,210
Loans charged off	(2,008)	(365)
Recoveries	18	42
Provision for loan and lease losses	2,688	(2,591)
Ending balance	10,249	12,296
Specific Reserve	1,087	51
General Allocation	9,162	12,245
Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	9,606	9,692
Loans charged off	(365)	0
Recoveries	53	31
Provision for loan and lease losses	(739)	689
Ending balance	8,555	10,412
Specific Reserve	16	0
General Allocation	8,539	10,412
Real Estate Construction Portfolio Segment [Member] | Income Property Multifamily [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	665	274
Loans charged off	0	(487)
Recoveries	0	0
Provision for loan and lease losses	(442)	340
Ending balance	223	127
Specific Reserve	0	0
General Allocation	223	127
Real Estate Construction Portfolio Segment [Member] | Owner Occupied [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	35	70
Loans charged off	0	0
Recoveries	0	0
Provision for loan and lease losses	9	(2)
Ending balance	44	68
Specific Reserve	0	0
General Allocation	44	68
Real Estate Construction Portfolio Segment [Member] | Land and Acquisition [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,331	3,769
Loans charged off	(204)	(768)
Recoveries	47	1,068
Provision for loan and lease losses	(503)	(773)
Ending balance	1,671	3,296
Specific Reserve	0	355
General Allocation	1,671	2,941
Real Estate Construction Portfolio Segment [Member] | Residential Construction [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	864	2,292
Loans charged off	0	(659)
Recoveries	0	36
Provision for loan and lease losses	138	449
Ending balance	1,002	2,118
Specific Reserve	18	34
General Allocation	984	2,084
Consumer Portfolio Segment [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,719	2,120
Loans charged off	(1,093)	(925)
Recoveries	373	63
Provision for loan and lease losses	130	1,160
Ending balance	2,129	2,418
Specific Reserve	0	0
General Allocation	2,129	2,418
Unallocated Financing Receivables [Member] | Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	694	3,283
Loans charged off	0	0
Recoveries	0	0
Provision for loan and lease losses	6	(3,283)
Ending balance	700	0
Specific Reserve	0	0
General Allocation	$ 700	$ 0

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Noncovered Loans (Analysis of Nonaccrual Loans) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 57,552	$ 53,483
Financing Receivable Unpaid Principal Balance Nonaccrual Status	94,136	88,868
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		53,483
Commercial Portfolio Segment [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	14,676	10,124
Financing Receivable Unpaid Principal Balance Nonaccrual Status	23,299	16,820
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		10,124
Commercial Portfolio Segment [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	115	119
Financing Receivable Unpaid Principal Balance Nonaccrual Status	715	719
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		119
Real Estate Portfolio Segment [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,624	2,696
Financing Receivable Unpaid Principal Balance Nonaccrual Status	2,992	3,011
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		2,696
Real Estate Portfolio Segment [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,432	3,739
Financing Receivable Unpaid Principal Balance Nonaccrual Status	7,233	7,230
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		3,739
Real Estate Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	12,771	6,775
Financing Receivable Unpaid Principal Balance Nonaccrual Status	17,277	9,265
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		6,775
Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	8,669	8,971
Financing Receivable Unpaid Principal Balance Nonaccrual Status	12,249	10,932
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		8,971
Real Estate Construction Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	5,023	7,067
Financing Receivable Unpaid Principal Balance Nonaccrual Status	10,367	14,912
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		7,067
Real Estate Construction Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Real Estate Construction Portfolio Segment [Member] | Land and Acquisition [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	6,410	7,799
Financing Receivable Unpaid Principal Balance Nonaccrual Status	13,581	16,703
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		7,799
Real Estate Construction Portfolio Segment [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,383	2,986
Financing Receivable Unpaid Principal Balance Nonaccrual Status	4,647	5,316
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		2,986
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,449	3,207
Financing Receivable Unpaid Principal Balance Nonaccrual Status	1,776	3,960
Financing Receivable, Recorded Investment, Gross, Nonaccrual Status		$ 3,207

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Goodwill and Intangible Assets (Schedule of Goodwill and Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 years	Mar. 31, 2011	Dec. 31, 2011	Dec. 31, 2010
Goodwill and Intangible Assets [Roll Forward]
Total goodwill, beginning of period			$ 115,554
Total goodwill, end of period	115,554	109,639	115,554
Core deposit intangible, net, beginning of period			20,166
Total core deposit intangible, end of period	19,016		20,166
Total goodwill and intangible assets, end of period	134,570	127,351
Core Deposits [Member]
Goodwill and Intangible Assets [Roll Forward]
Gross core deposit intangible balance, beginning of period			32,441	26,651
Accumulated amortization, beginning of period	(12,275)	(7,955)
Core deposit intangible, net, beginning of period	20,166	18,696
CDI current period amortization	(1,150)	(984)
Total core deposit intangible, end of period	$ 19,016	$ 17,712
Estimated life of CDI, in years	10

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Covered Assets and FDIC Loss-sharing Asset (Analysis and Allowance for Losses on Covered Loans) (Details) (USD $) In Thousands, unless otherwise specified							3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 Covered Loans [Member]	Dec. 31, 2011 Covered Loans [Member]	Mar. 31, 2011 Covered Loans [Member]	Dec. 31, 2010 Covered Loans [Member]	Mar. 31, 2012 Commercial Portfolio Segment [Member] Covered Loans [Member] risk_rating	Dec. 31, 2011 Commercial Portfolio Segment [Member] Covered Loans [Member] risk_rating	Mar. 31, 2012 Real Estate Portfolio Segment [Member] Covered Loans [Member]	Dec. 31, 2011 Real Estate Portfolio Segment [Member] Covered Loans [Member]	Mar. 31, 2012 Real Estate Portfolio Segment [Member] Covered Loans [Member] One-to-Four Family Residential [Member] risk_rating	Dec. 31, 2011 Real Estate Portfolio Segment [Member] Covered Loans [Member] One-to-Four Family Residential [Member] risk_rating	Mar. 31, 2012 Real Estate Portfolio Segment [Member] Covered Loans [Member] Commercial and Multifamily Residential [Member] risk_rating	Dec. 31, 2011 Real Estate Portfolio Segment [Member] Covered Loans [Member] Commercial and Multifamily Residential [Member] risk_rating	Mar. 31, 2012 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member]	Dec. 31, 2011 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member]	Mar. 31, 2012 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member] One-to-Four Family Residential [Member] risk_rating	Dec. 31, 2011 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member] One-to-Four Family Residential [Member] risk_rating	Mar. 31, 2012 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member] Commercial and Multifamily Residential [Member] risk_rating	Dec. 31, 2011 Real Estate Construction Portfolio Segment [Member] Covered Loans [Member] Commercial and Multifamily Residential [Member] risk_rating	Mar. 31, 2012 Consumer Portfolio Segment [Member] Covered Loans [Member] risk_rating	Dec. 31, 2011 Consumer Portfolio Segment [Member] Covered Loans [Member] risk_rating
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount			$ 666,884	$ 721,313			$ 175,623	$ 195,737	$ 373,935	$ 390,636	$ 74,733	$ 79,328	$ 299,202	$ 311,308	$ 65,665	$ 78,063	$ 44,335	$ 54,402	$ 21,330	$ 23,661	$ 51,661	$ 56,877
Weighted Average Risk Rating							6.00	6.05			5.35	5.32	5.57	5.65			7.25	7.32	7.04	7.32	4.71	4.84
Valuation discount resulting from acquisition accounting			144,767	184,440
Allowance for loan losses			20,504	4,944	5,633	6,055	6,320	977	9,787	3,361	2,947	678	6,840	2,683	2,315	222	1,604	136	711	86	2,082	384
Loans, net	$ 2,821,148	$ 2,827,259	$ 501,613	$ 531,929

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Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2012

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 the Company, and its wholly owned banking subsidiary Columbia Bank (the “Bank”). 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, 2012 are not necessarily indicative of results to be anticipated for the year ending December 31, 2012. The accompanying interim unaudited consolidated financial statements should be read in conjunction with the financial statements and related notes contained in the Company’s 2011 Annual Report on Form 10-K.

Significant Accounting Policies

The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2011 Annual Report on Form 10-K. Other than as discussed below, there have not been any changes in our significant accounting policies compared to those contained in our 2011 10-K disclosure for the year ended December 31, 2011.

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Allowance for Noncovered 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, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Allowance For Loan And Lease Losses And Unfunded Loan Commitments And Letters Of Credit
Beginning balance	$ 1,535	$ 1,165
Allowance for Loan and Lease Losses, Net Changes In Unfunded Commitments and Letters Of Credit Allowance	130	495
Ending balance	$ 1,665	$ 1,660

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Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2012

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, 2012 and 2011:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands except per share)
Basic EPS:
Net income	$	8,902	$	5,779
Less: Earnings allocated to participating securities	(132)		(53)
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Basic earnings per common share	$	0.22	$	0.15
Diluted EPS:
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Dilutive effect of equity awards and warrants	103		113
Weighted average diluted common shares outstanding	39,298		39,156
Diluted earnings per common share	$	0.22	$	0.15
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	46		54

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Fair Value Accounting and Measurement (Tables)

3 Months Ended

Mar. 31, 2012

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, 2012 and December 31, 2011 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  at March 31, 2012		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	669,584	$	—	$	669,584	$	—
State and municipal debt securities	283,552		—		283,552		—
U.S. government agency and government-sponsored enterprise securities	42,752		—		42,752		—
Other securities	3,325		—		3,325		—
Total securities available for sale	$	999,213	$	—	$	999,213	$	—
Other assets (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—

	Fair value  at December 31, 2011		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	695,954	$	—	$	695,954	$	—
State and municipal debt securities	285,763		—		285,763		—
U.S. government agency and government-sponsored enterprise securities	43,063		—		43,063		—
Other securities	3,330		—		3,330		—
Total securities available for sale	$	1,028,110	$	—	$	1,028,110	$	—
Other assets (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—

Financial Assets Accounted For Fair Value On Nonrecurring Basis

The following table sets forth the Company's assets that were measured using fair value estimates on a nonrecurring basis at March 31, 2012 and 2011.

	Fair value  at March 31, 2012		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2012
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	12,416	$	—	$	—	$	12,416	$	2,881
Noncovered OREO	3,510		—		—		3,510		1,730
Covered OREO	1,917		—		—		1,917		767
Noncovered OPPO	2,334		—		—		2,334		1,950
	$	20,177	$	—	$	—	$	20,177	$	7,328

	Fair value  at March 31, 2011		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2011
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	31,712	$	—	$	—	$	31,712	$	4,908
Noncovered OREO	4,490		—		—		4,490		2,001
Covered OREO	31		—		—		31		14
Noncovered OPPO	2,420		—		—		2,420		185
	$	38,653	$	—	$	—	$	38,653	$	7,108

Fair Value, by Balance Sheet Grouping

The following table summarizes carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value:

	March 31, 2012										December 31, 2011
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3		Carrying Amount		Fair Value
	(in thousands)
Assets
Cash and due from banks	$	93,904	$	93,904	$	93,904	$	—	$	—	$	91,364	$	91,364
Interest-earning deposits with banks	297,553		297,553		297,553		—		—		202,925		202,925
Securities available for sale	999,213		999,213		—		999,213		—		1,028,110		1,028,110
FHLB stock	22,215		22,215		—		22,215		—		22,215		22,215
Loans held for sale	2,066		2,066		—		—		2,066		2,148		2,148
Loans	2,821,148		2,929,332		—		—		2,929,332		2,827,259		2,957,345
FDIC loss-sharing asset	159,061		62,609		—		—		62,609		175,071		71,788
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302
Liabilities
Deposits	$	3,865,445	$	3,891,744	$	3,328,620	$	563,124	$	—	$	3,815,529	$	3,817,013
FHLB Advances	114,715		114,941		—		114,941		—		119,009		119,849
Repurchase agreements	25,000		26,442		—		26,442		—		25,000		26,580
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302

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 during the first quarter of 2012, along with the valuation techniques used, are shown in the following table:

	Fair value  at March 31, 2012		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	12,416	Market comparable	Adjustment to Appraisal Value	0% - 37% (12%)
Noncovered OREO	3,510		Market comparable	Adjustment to Appraisal Value	N/A (2)
Covered OREO	1,917		Market comparable	Adjustment to Appraisal Value	0% - 23% (3%)
Noncovered OPPO	2,334		Market comparable	Adjustment to Appraisal Value	N/A (2)
(1) Discount to appraisal value.
(2) Quantitative disclosures are not provided for noncovered OREO and noncovered OPPO because there were no adjustments made to the appraisal value during the current period.

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Fair Value Accounting and Measurement (Financial Assets And Liabilities Accounted for Fair Value On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 999,213	$ 1,028,110
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	999,213	1,028,110
Other assets (Interest rate contracts)	14,950	16,302
Other liabilities (Interest rate contracts)	14,950	16,302
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 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	999,213	1,028,110
Other assets (Interest rate contracts)	14,950	16,302
Other liabilities (Interest rate contracts)	14,950	16,302
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	669,584	695,954
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	669,584	695,954
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	283,552	285,763
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	283,552	285,763
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	42,752	43,063
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	42,752	43,063
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
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	3,325	3,330
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	3,325	3,330
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

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Allowance for Noncovered Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Analysis of Credit Quality of Noncovered Loan Portfolio) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012 risk_rating	Dec. 31, 2011 risk_rating
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount		$ 2,348,371
Loans and Leases Receivable, Net of Deferred Income	2,371,818	2,348,371
Commercial Portfolio Segment [Member] | Secured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.92	4.89
Loans and Leases Receivable, Gross, Carrying Amount		981,417
Loans and Leases Receivable, Net of Deferred Income	1,028,402
Commercial Portfolio Segment [Member] | Unsecured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.26	4.25
Loans and Leases Receivable, Gross, Carrying Amount		47,406
Loans and Leases Receivable, Net of Deferred Income	47,265
Real Estate Portfolio Segment [Member] | One-to-Four Family Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.76	4.81
Loans and Leases Receivable, Gross, Carrying Amount		64,063
Loans and Leases Receivable, Net of Deferred Income	58,876
Real Estate Portfolio Segment [Member] | Commercial Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	5.11	5.22
Loans and Leases Receivable, Gross, Carrying Amount		50,681
Loans and Leases Receivable, Net of Deferred Income	45,380
Real Estate Portfolio Segment [Member] | Income Property Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.00	4.94
Loans and Leases Receivable, Gross, Carrying Amount		533,993
Loans and Leases Receivable, Net of Deferred Income	558,570
Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	5.09	5.05
Loans and Leases Receivable, Gross, Carrying Amount		404,789
Loans and Leases Receivable, Net of Deferred Income	380,196
Real Estate Construction Portfolio Segment [Member] | Income Property Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	5.06	5.49
Loans and Leases Receivable, Gross, Carrying Amount		20,877
Loans and Leases Receivable, Net of Deferred Income	19,235
Real Estate Construction Portfolio Segment [Member] | Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.60	4.55
Loans and Leases Receivable, Gross, Carrying Amount		12,790
Loans and Leases Receivable, Net of Deferred Income	16,008
Real Estate Construction Portfolio Segment [Member] | Land and Acquisition [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	6.29	6.43
Loans and Leases Receivable, Gross, Carrying Amount		25,201
Loans and Leases Receivable, Net of Deferred Income	23,384
Real Estate Construction Portfolio Segment [Member] | Residential Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	5.80	5.94
Loans and Leases Receivable, Gross, Carrying Amount		23,931
Loans and Leases Receivable, Net of Deferred Income	24,480
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted Average Risk Rating	4.22	4.24
Loans and Leases Receivable, Gross, Carrying Amount		183,223
Loans and Leases Receivable, Net of Deferred Income	$ 170,022

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Securities (Securities Available for Sale) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 961,296	$ 987,560
Gross Unrealized Gains	39,526	42,638
Gross Unrealized Losses	(1,609)	(2,088)
Fair Value	999,213	1,028,110
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	652,263	678,631
Gross Unrealized Gains	18,650	19,323
Gross Unrealized Losses	(1,329)	(2,000)
Fair Value	669,584	695,954
State and Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	263,298	263,075
Gross Unrealized Gains	20,466	22,746
Gross Unrealized Losses	(212)	(58)
Fair Value	283,552	285,763
U.S. Government and Government-Sponsored Enterprise Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	42,439	42,558
Gross Unrealized Gains	350	505
Gross Unrealized Losses	(37)	0
Fair Value	42,752	43,063
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,296	3,296
Gross Unrealized Gains	60	64
Gross Unrealized Losses	(31)	(30)
Fair Value	$ 3,325	$ 3,330

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Securities (Schedule of Contractual Maturities of Investment Securities Available for Sale) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012
Available-for-sale Securities [Abstract]
Due within one year, Amortized Cost	$ 22,442
Due after one year through five years, Amortized Cost	78,072
Due after five years through ten years, Amortized Cost	190,442
Due after ten years, Amortized Cost	667,044
Total investment securities available-for-sale, Amortized Cost	958,000
Due within one year, Fair Value	22,749
Due after one year through five years, Fair Value	80,627
Due after five years through ten years, Fair Value	199,359
Due after ten years, Fair Value	693,153
Total investment securities available-for-sale, Fair Value	$ 995,888

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities
Net Income	$ 8,902	$ 5,779
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses and losses on covered loans	20,185	(422)
Stock-based compensation expense	450	335
Depreciation, amortization and accretion	16,141	3,774
Net realized gain on sale of securities	62	0
Net realized gain on sale of other assets	(21)	(3)
Net realized (gain) loss on sale of other real estate owned	(2,954)	(2,712)
Gain on termination of cash flow hedging instruments	0	(222)
Write-down on other real estate owned	3,127	1,925
Net change in:
Loans held for sale	82	212
Interest receivable	(750)	(1,725)
Interest payable	(148)	(251)
Other assets	(1,166)	13,736
Other liabilities	(8,403)	(766)
Net cash provided by operating activities	35,383	19,660
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected	(16,814)	51,870
Purchases of securities available for sale	(30,177)	(149,799)
Purchases of premises and equipment	(6,682)	(2,461)
Proceeds from FDIC reimbursement on loss-sharing asset	14,804	0
Proceeds from sales of securities available for sale	3,845	0
Proceeds from principal repayments and maturities of securities available for sale	49,654	27,315
Proceeds from disposal of premises and equipment	0	20
Proceeds from sales of covered other real estate owned	8,025	6,959
Proceeds from sales of other real estate and other personal property owned	7,829	5,372
Capital improvements on other real estate properties	(90)	(251)
Decrease in Small Business Administration secured borrowings	0	(558)
Net cash provided by (used in) investing activities	30,394	(61,533)
Cash Flows From Financing Activities
Net increase in deposits	49,916	8,944
Proceeds from Federal Home Loan Bank advances	0	100
Proceeds from Federal Reserve Bank borrowings	0	100
Proceeds from exercise of stock options	308	380
Repayment of Federal Home Loan Bank advances	(4,210)	(4,140)
Repayment of Federal Reserve Bank borrowings	0	(100)
Payment of common stock dividends	(14,623)	(1,181)
Payments for purchase and retirement of common stock	0	(32)
Net cash provided by financing activities	31,391	4,071
Increase (Decrease) in cash and cash equivalents	97,168	(37,802)
Cash and cash equivalents at beginning of period	294,289	514,130
Cash and cash equivalents at end of period	391,457	476,328
Supplemental Information:
Cash paid for interest	2,797	4,413
Cash paid for income tax	0	0
Non-cash investing activities
Loans transferred to other real estate owned	$ 6,092	$ 5,467

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Securities (Carrying Value of Securities Pledged as Collateral) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	$ 403,549
Washington and Oregon State Public Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	213,713
Federal Home Loan Bank Advances [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	87,180
Federal Reserve Bank Advances [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	54,778
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Carrying amount of securities pledged as collateral	$ 47,878

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Noncovered Loans Noncovered Loans (Analysis of Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012 contract	Mar. 31, 2011 Noncovered Loans [Member] Modifications	Mar. 31, 2011 Noncovered Loans [Member] Residential Construction [Member] Modifications
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts		1	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 36	$ 36
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 36	$ 36
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0

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Goodwill and Intangible Assets (Estimated Future Amortization Expense of Core Deposit Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Future Amortization Expense For Core Deposit Intangibles
2012	$ 3,295
2013	3,964
2014	3,397
2015	2,645
2016	$ 2,184

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and due from banks	$ 93,904	$ 91,364
Interest-earning deposits with banks	297,553	202,925
Total cash and cash equivalents	391,457	294,289
Securities available for sale at fair value (amortized cost of $987,560 and $743,928, respectively)	999,213	1,028,110
Federal Home Loan Bank stock at cost	22,215	22,215
Loans held for sale	2,066	2,148
Loans, net	2,821,148	2,827,259
FDIC loss sharing asset	159,061	175,071
Interest receivable	16,037	15,287
Premises and equipment, net	113,071	107,899
Other real estate owned ($28,126 and $14,443 covered by FDIC loss share, respectively)	41,174	51,019
Goodwill	115,554	115,554
Core deposit intangible, net	19,016	20,166
Other assets	115,420	126,928
Total Assets	4,815,432	4,785,945
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest-bearing	1,159,308	1,156,610
Interest-bearing	2,706,137	2,658,919
Total deposits	3,865,445	3,815,529
Federal Home Loan Bank advances	114,715	119,009
Securities sold under agreements to repurchase	25,000	25,000
Other liabilities	57,569	67,069
Total liabilities	4,062,729	4,026,607
Commitments and contingent liabilities
Shareholders' equity:
Authorized shares	63,033	63,033
Common Stock Shares Issued And Outstanding	39,670	39,506
Common Stock (no par value)	579,894	579,136
Retained earnings	149,348	155,069
Accumulated other comprehensive income	23,461	25,133
Total shareholders' equity	752,703	759,338
Total Liabilities and Shareholders' Equity	4,815,432	4,785,945
Noncovered Loans [Member]
ASSETS
Loans held for sale	2,066	2,148
Loans, excluding covered loans, net of unearned income of ($16,217) and ($3,490), respectively	2,371,818	2,348,371
Less: allowance for loan and lease losses	52,283	53,041
Loans, net	2,319,535	2,295,330
Other real estate owned ($28,126 and $14,443 covered by FDIC loss share, respectively)	16,744	22,893
Covered Loans [Member]
ASSETS
Less: allowance for loan and lease losses	20,504	4,944
Loans, net	501,613	531,929
Other real estate owned ($28,126 and $14,443 covered by FDIC loss share, respectively)	$ 24,430	$ 28,126

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Changes in Noncovered Other Real Estate Owned (Summary of Noncovered Other Real Estate Owned) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Other Real Estate Owned [Line Items]
Balance, beginning of period	$ 51,019
Proceeds from sale of OREO property	(7,829)	(5,372)
Gain (loss) on sale of OREO	2,954	2,712
Total OREO, end of period	41,174
Noncovered Loans [Member]
Other Real Estate Owned [Line Items]
Balance, beginning of period	22,893	30,991
Transfers in, net of write-downs ($118 and 91, respectively)	3,803	2,042
Transfers in, write-downs	118	91
OREO improvements	11	251
Additional OREO write-down	(1,722)	(1,910)
Proceeds from sale of OREO property	(7,829)	(5,372)
Gain (loss) on sale of OREO	(412)	79
Total OREO, end of period	$ 16,744	$ 26,081

XML

Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net unrealized holding gain (loss) from available for sale securities arising during the period, tax	$ (926)	$ 1,284
Reclassification adjustment of net gain from sale of available for sale securities included in income, tax	22	0
Reclassification adjustment of net gain included in income, tax	0	79
Net unrealized gain from unfunded defined benefit plan liability arising during the period, tax	0	(154)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, tax	$ (7)	$ (8)

XML

Fair Value Accounting and Measurement (Carrying Amounts and Estimated Fair Values of Selected Financial Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Assets
Interest-earning deposits with banks	$ 297,553	$ 202,925
Securities available for sale	999,213	1,028,110
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets
Cash and due from banks	93,904	91,364
Interest-earning deposits with banks	297,553	202,925
Securities available for sale	999,213	1,028,110
FHLB stock	22,215	22,215
Loans held for sale	2,066	2,148
Loans	2,821,148	2,827,259
FDIC loss-sharing asset	159,061	175,071
Interest rate contracts	14,950	16,302
Liabilities
Deposits	3,865,445	3,815,529
FHLB Advances	114,715	119,009
Repurchase agreements	25,000	25,000
Interest rate contracts	14,950	16,302
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	93,904	91,364
Interest-earning deposits with banks	297,553	202,925
Securities available for sale	999,213	1,028,110
FHLB stock	22,215	22,215
Loans held for sale	2,066	2,148
Loans	2,929,332	2,957,345
FDIC loss-sharing asset	62,609	71,788
Interest rate contracts	14,950	16,302
Liabilities
Deposits	3,891,744	3,817,013
FHLB Advances	114,941	119,849
Repurchase agreements	26,442	26,580
Interest rate contracts	14,950	16,302
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	93,904
Interest-earning deposits with banks	297,553
Securities available for sale	0
FHLB stock	0
Loans held for sale	0
Loans	0
FDIC loss-sharing asset	0
Interest rate contracts	0
Liabilities
Deposits	3,328,620
FHLB Advances	0
Repurchase agreements	0
Interest rate contracts	0
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	0
Interest-earning deposits with banks	0
Securities available for sale	999,213
FHLB stock	22,215
Loans held for sale	0
Loans	0
FDIC loss-sharing asset	0
Interest rate contracts	14,950
Liabilities
Deposits	563,124
FHLB Advances	114,941
Repurchase agreements	26,442
Interest rate contracts	14,950
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Cash and due from banks	0
Interest-earning deposits with banks	0
Securities available for sale	0
FHLB stock	0
Loans held for sale	2,066
Loans	2,929,332
FDIC loss-sharing asset	62,609
Interest rate contracts	0
Liabilities
Deposits	0
FHLB Advances	0
Repurchase agreements	0
Interest rate contracts	$ 0

XML

Noncovered Loans (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012 contract	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Loans to related parties	$ 11,700,000	$ 9,000,000
Advances on related party loans	2,800,000
Repayments on related party loans	141,000
Additional funds committed to lend on loans classified as TDR	9,500,000	535,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Loans Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 471,700,000	$ 462,000,000

XML

Noncovered Loans (Tables) (Noncovered Loans [Member])

3 Months Ended

Mar. 31, 2012

Noncovered Loans [Member]

Financing Receivable, Recorded Investment [Line Items]

Analysis of Loan Portfolio by Major Types of Loans

The following is an analysis of the noncovered loan portfolio by major types of loans (net of unearned income):

	March 31, 2012			December 31, 2011
	(in thousands)
Noncovered loans:
Commercial business	$	1,079,356		$	1,031,721
Real estate:
One-to-four family residential	58,843			64,491
Commercial and multifamily residential	992,403			998,165
Total real estate	1,051,246			1,062,656
Real estate construction:
One-to-four family residential	48,559			50,208
Commercial and multifamily residential	35,567			36,768
Total real estate construction	84,126			86,976
Consumer	169,955			183,235
Less: Net unearned income	(12,865		)	(16,217		)
Total noncovered loans, net of unearned income	2,371,818			2,348,371
Less: Allowance for loan and lease losses	(52,283		)	(53,041		)
Total noncovered loans, net	$	2,319,535		$	2,295,330
Loans held for sale	$	2,066		$	2,148

Schedule of Financing Receivables, Non Accrual Status [Table Text Block]

The following is an analysis of noncovered, nonaccrual loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012				December 31, 2011
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business
Secured	$	14,676	$	23,299	$	10,124	$	16,820
Unsecured	115		715		119		719
Real estate:
One-to-four family residential	2,624		2,992		2,696		3,011
Commercial & multifamily residential
Commercial land	3,432		7,233		3,739		7,230
Income property multifamily	12,771		17,277		6,775		9,265
Owner occupied	8,669		12,249		8,971		10,932
Real estate construction:
One-to-four family residential
Land and acquisition	6,410		13,581		7,799		16,703
Residential construction	2,383		4,647		2,986		5,316
Commercial & multifamily residential
Income property multifamily	5,023		10,367		7,067		14,912
Consumer	1,449		1,776		3,207		3,960
Total	$	57,552	$	94,136	$	53,483	$	88,868

Past Due Financing Receivables [Table Text Block]

The following is an analysis of the noncovered loan portfolio by major types of loans (net of unearned income):

	March 31, 2012			December 31, 2011
	(in thousands)
Noncovered loans:
Commercial business	$	1,079,356		$	1,031,721
Real estate:
One-to-four family residential	58,843			64,491
Commercial and multifamily residential	992,403			998,165
Total real estate	1,051,246			1,062,656
Real estate construction:
One-to-four family residential	48,559			50,208
Commercial and multifamily residential	35,567			36,768
Total real estate construction	84,126			86,976
Consumer	169,955			183,235
Less: Net unearned income	(12,865		)	(16,217		)
Total noncovered loans, net of unearned income	2,371,818			2,348,371
Less: Allowance for loan and lease losses	(52,283		)	(53,041		)
Total noncovered loans, net	$	2,319,535		$	2,295,330
Loans held for sale	$	2,066		$	2,148

At March 31, 2012 and December 31, 2011, the Company had no loans to foreign domiciled businesses or foreign countries, or loans related to highly leveraged transactions. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington and Oregon.

The Company and its banking subsidiary have granted loans to 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 $11.7 million and $9.0 million at March 31, 2012 and December 31, 2011, respectively. During the first three months of 2012, advances on related party loans were $2.8 million and repayments totaled $141 thousand.

At March 31, 2012 and December 31, 2011, $471.7 million and $462.0 million of commercial and residential real estate loans were pledged as collateral on Federal Home Loan Bank borrowings.

The following is an analysis of noncovered, nonaccrual loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012				December 31, 2011
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business
Secured	$	14,676	$	23,299	$	10,124	$	16,820
Unsecured	115		715		119		719
Real estate:
One-to-four family residential	2,624		2,992		2,696		3,011
Commercial & multifamily residential
Commercial land	3,432		7,233		3,739		7,230
Income property multifamily	12,771		17,277		6,775		9,265
Owner occupied	8,669		12,249		8,971		10,932
Real estate construction:
One-to-four family residential
Land and acquisition	6,410		13,581		7,799		16,703
Residential construction	2,383		4,647		2,986		5,316
Commercial & multifamily residential
Income property multifamily	5,023		10,367		7,067		14,912
Consumer	1,449		1,776		3,207		3,960
Total	$	57,552	$	94,136	$	53,483	$	88,868

The following is an analysis of the recorded investment of the aged loan portfolio as of March 31, 2012 and December 31, 2011:

	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
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,006,841	$	3,279	$	3,606	$	—	$	6,885	$	14,676	$	1,028,402
Unsecured	46,796		235		119		—		354		115		47,265
Real estate:
One-to-four family residential	55,486		682		84		—		766		2,624		58,876
Commercial & multifamily residential
Commercial land	41,948		—		—		—		—		3,432		45,380
Income property multifamily	542,839		2,960		—		—		2,960		12,771		558,570
Owner occupied	369,579		1,948		—		—		1,948		8,669		380,196
Real estate construction:
One-to-four family residential
Land and acquisition	16,974		—		—		—		—		6,410		23,384
Residential construction	21,778		—		319		—		319		2,383		24,480
Commercial & multifamily residential
Income property multifamily	14,212		—		—		—		—		5,023		19,235
Owner occupied	16,008		—		—		—		—		—		16,008
Consumer	168,573		—		—		—		—		1,449		170,022
Total	$	2,301,034	$	9,104	$	4,128	$	—	$	13,232	$	57,552	$	2,371,818
	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
	(in thousands)
December 31, 2011
Commercial business
Secured	$	966,563	$	1,741	$	2,989	$	—	$	4,730	$	10,124	$	981,417
Unsecured	46,880		407		—		—		407		119		47,406
Real estate:
One-to-four family residential	60,764		603		—		—		603		2,696		64,063
Commercial & multifamily residential
Commercial land	46,161		781		—		—		781		3,739		50,681
Income property multifamily	524,225		2,872		121		—		2,993		6,775		533,993
Owner occupied	394,691		829		298		—		1,127		8,971		404,789
Real estate construction:
One-to-four family residential
Land and acquisition	17,249		153		—		—		153		7,799		25,201
Residential construction	19,555		1,390		—		—		1,390		2,986		23,931
Commercial & multifamily residential
Income property multifamily	13,810		—		—		—		—		7,067		20,877
Owner occupied	12,790		—		—		—		—		—		12,790
Consumer	179,753		141		122		—		263		3,207		183,223
Total	$	2,282,441	$	8,917	$	3,530	$	—	$	12,447	$	53,483	$	2,348,371

Impaired Financing Receivables [Table Text Block]

The following is an analysis of impaired loans as of March 31, 2012 and December 31, 2011:

	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,017,869	$	10,533	$	1,698	$	1,698	$	451	$	8,835	$	16,824	$	9,709	$	309
Unsecured	47,124		141		141		141		141		—		—		119		1
Real estate:
One-to-four family residential	56,823		2,053		355		368		72		1,698		1,848		2,266		1
Commercial & multifamily residential
Commercial land	42,369		3,011		—		—		—		3,011		6,052		3,405		—
Income property multifamily	549,035		9,535		4,579		4,612		1,087		4,956		8,556		8,083		115
Owner occupied	366,457		13,739		1,083		1,203		16		12,656		18,378		14,152		107
Real estate construction:
One-to-four family residential
Land and acquisition	17,693		5,691		—		—		—		5,691		11,026		6,539		—
Residential construction	20,993		3,487		18		1,468		18		3,469		4,209		4,286		358
Commercial & multifamily residential
Income property multifamily	14,212		5,023		—		—		—		5,023		10,367		6,045		—
Owner occupied	16,008		—		—		—		—		—		—		—		—
Consumer	168,971		1,051		—		—		—		1,051		1,052		1,672		—
Total	$	2,317,554	$	54,264	$	7,874	$	9,490	$	1,785	$	46,390	$	78,312	$	56,276	$	891
	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
December 31, 2011
Commercial business
Secured	$	972,531	$	8,886	$	2,926	$	2,927	$	954	$	5,960	$	12,109	$	15,578	$	511
Unsecured	47,309		97		97		97		97		—		—		138		—
Real estate:
One-to-four family residential	61,584		2,479		582		590		96		1,897		2,136		2,494		—
Commercial & multifamily residential
Commercial land	46,882		3,799		—		—		—		3,799		6,773		4,263		—
Income property multifamily	527,362		6,631		687		759		63		5,944		7,700		8,881		59
Owner occupied	390,225		14,564		274		274		185		14,290		18,524		15,254		18
Real estate construction:
One-to-four family residential
Land and acquisition	17,813		7,388		450		948		—		6,938		11,978		8,972		116
Residential construction	18,847		5,084		59		1,509		59		5,025		5,116		4,535		—
Commercial & multifamily residential
Income property multifamily	13,810		7,067		—		—		—		7,067		14,947		7,065		—
Owner occupied	12,790		—		—		—		—		—		—		—		—
Consumer	180,930		2,293		151		225		30		2,142		2,639		3,880		15
Total	$	2,290,083	$	58,288	$	5,226	$	7,329	$	1,484	$	53,062	$	81,922	$	71,060	$	719

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

There were no Troubled Debt Restructurings ("TDR") during the three months ended March 31, 2012. The following is an analysis of loans classified as TDR during the three months ended March 31, 2011:

	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Real estate construction: One-to-four family residential
Residential construction	1	36		36
Total	1	$	36	$	36

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Noncovered Loans (Analysis of Loan Portfolio by Major Types of Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2010
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	$ 12,865	$ 16,217
Loans, net	2,821,148	2,827,259
Loans held for sale	2,066	2,148
Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Deferred Income	12,865	16,217
Loans and Leases Receivable, Net of Deferred Income	2,371,818	2,348,371
Allowance for loan losses	52,283	53,041	55,315	60,993
Loans, net	2,319,535	2,295,330
Loans held for sale	2,066	2,148
Commercial Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial and Industrial	1,079,356	1,031,721
Real Estate Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Mortgage	1,051,246	1,062,656
Real Estate Construction Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable Real Estate Construction	84,126	86,976
Consumer Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer	169,955	183,235
Loans and Leases Receivable, Net of Deferred Income	170,022
Allowance for loan losses	2,129	2,719	2,418	2,120
One-to-Four Family Residential [Member] | Real Estate Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer, Mortgage	58,843	64,491
Loans and Leases Receivable, Net of Deferred Income	58,876
Allowance for loan losses	689	654	1,100	1,100
One-to-Four Family Residential [Member] | Real Estate Construction Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Consumer, Construction	48,559	50,208
Commercial and Multifamily Residential [Member] | Real Estate Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial, Mortgage	992,403	998,165
Commercial and Multifamily Residential [Member] | Real Estate Construction Portfolio Segment [Member] | Noncovered Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Gross, Commercial, Construction	$ 35,567	$ 36,768

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Changes in Noncovered Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2012

Other Real Estate and Foreclosed Assets [Abstract]

Summary of Noncovered Other Real Estate Owned

The following table sets forth activity in noncovered OREO for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Noncovered OREO:
Balance, beginning of period	$	22,893		$	30,991
Transfers in, net of write-downs ($118 and $91, respectively)	3,803			2,042
OREO improvements	11			251
Additional OREO write-downs	(1,722		)	(1,910		)
Proceeds from sale of OREO property	(7,829		)	(5,372		)
Gain (loss) on sale of OREO	(412		)	79
Total noncovered OREO, end of period	$	16,744		$	26,081

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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]
Balance, value at Dec. 31, 2010	$ 706,878	$ 576,905	$ 117,692	$ 12,281
Balance, shares at Dec. 31, 2010		39,338
Net Income	5,779		5,779
Other comprehensive income	1,924			1,924
Issuance of common stock - stock option and other plans, value	380	380
Issuance of common stock - stock option and other plans, shares		23
Issuance of common stock - restricted stock awards, net of cancelled awards, value	335	335
Issuance of common stock - restricted stock awards, net of cancelled awards, shares		122
Stock Repurchased and Retired During Period, Shares		(2)
Stock Repurchased and Retired During Period, Value	(32)	(32)
Cash dividends paid on common stock	(1,181)		(1,181)
Balance, value at Mar. 31, 2011	714,083	577,588	122,290	14,205
Balance, shares at Mar. 31, 2011		39,481
Balance, value at Dec. 31, 2011	759,338	579,136	155,069	25,133
Balance, shares at Dec. 31, 2011		39,506
Net Income	8,902		8,902
Other comprehensive income	(1,672)			(1,672)
Issuance of common stock - stock option and other plans, value	308	308
Issuance of common stock - stock option and other plans, shares		18
Issuance of common stock - restricted stock awards, net of cancelled awards, value	450	450
Issuance of common stock - restricted stock awards, net of cancelled awards, shares		146
Cash dividends paid on common stock	(14,623)		(14,623)
Balance, value at Mar. 31, 2012	$ 752,703	$ 579,894	$ 149,348	$ 23,461
Balance, shares at Mar. 31, 2012		39,670

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Securities available-for-sale, amortized cost	$ 961,296	$ 987,560
Less: Unearned income on loans	(12,865)	(16,217)
Other real estate owned covered by FDIC loss share	41,174	51,019
Common stock, par value
Common stock, shares authorized	63,033	63,033
Common stock, shares outstanding	39,670	39,506
Covered Loans [Member]
Allowance for losses on covered loans	(20,504)	(4,944)
Other real estate owned covered by FDIC loss share	$ 24,430	$ 28,126

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Shareholders' Equity

3 Months Ended

Mar. 31, 2012

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

On January 26, 2012 the Company declared a quarterly cash dividend of $0.08 per share and a special, one-time cash dividend of $0.29 per share, both payable on February 22, 2012 to shareholders of record at the close of business February 8, 2012.

XML

Document and Entity Information	3 Months Ended
	Mar. 31, 2012	Apr. 30, 2012
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
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		39,674,650

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Derivatives and Hedging Activities

3 Months Ended

Mar. 31, 2012

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

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, 2012 and 2011 was $171.3 million and $160.3 million, respectively.

The following table presents the fair value of derivative instruments at March 31, 2012 and 2011:

	Asset Derivatives						Liability Derivatives
As of March 31,	2012			2011			2012			2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in thousands)
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14,950	Other assets	$	9,050	Other liabilities	$	14,950	Other liabilities	$	9,050

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income (loss)	$ 8,902	$ 5,779
Unrealized gain from securities:
Net unrealized holding gain from available for sale securities arising during the period, net of tax of ($7,462), ($1,047) and ($5,197)	(1,645)	2,313
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $48, $20 and $383	(40)	0
Net unrealized gain from securities, net of reclassification adjustment	(1,685)	2,313
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $79, $625, and $913	0	(142)
Net change in cash flow hedging instruments	0	(142)
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period, net of tax of $154, ($12) and $379	0	(261)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($31), ($15) and ($18)	13	14
Pension plan liability adjustment, net	13	(247)
Comprehensive income	$ 7,230	$ 7,703

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Noncovered Loans

3 Months Ended

Mar. 31, 2012

Noncovered Loans [Abstract]

Noncovered Loans

Noncovered Loans

Noncovered loans include loans originated through our branch network and loan departments as well as acquired loans, including discounted loans, that are not subject to a FDIC loss-share agreement.

The following is an analysis of the noncovered loan portfolio by major types of loans (net of unearned income):

	March 31, 2012			December 31, 2011
	(in thousands)
Noncovered loans:
Commercial business	$	1,079,356		$	1,031,721
Real estate:
One-to-four family residential	58,843			64,491
Commercial and multifamily residential	992,403			998,165
Total real estate	1,051,246			1,062,656
Real estate construction:
One-to-four family residential	48,559			50,208
Commercial and multifamily residential	35,567			36,768
Total real estate construction	84,126			86,976
Consumer	169,955			183,235
Less: Net unearned income	(12,865		)	(16,217		)
Total noncovered loans, net of unearned income	2,371,818			2,348,371
Less: Allowance for loan and lease losses	(52,283		)	(53,041		)
Total noncovered loans, net	$	2,319,535		$	2,295,330
Loans held for sale	$	2,066		$	2,148

At March 31, 2012 and December 31, 2011, the Company had no loans to foreign domiciled businesses or foreign countries, or loans related to highly leveraged transactions. Substantially all of the Company’s loans and unfunded commitments are geographically concentrated in its service areas within the states of Washington and Oregon.

The Company and its banking subsidiary have granted loans to 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 $11.7 million and $9.0 million at March 31, 2012 and December 31, 2011, respectively. During the first three months of 2012, advances on related party loans were $2.8 million and repayments totaled $141 thousand.

At March 31, 2012 and December 31, 2011, $471.7 million and $462.0 million of commercial and residential real estate loans were pledged as collateral on Federal Home Loan Bank borrowings.

The following is an analysis of noncovered, nonaccrual loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012				December 31, 2011
	Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans		Recorded Investment Nonaccrual Loans		Unpaid Principal Balance Nonaccrual Loans
	(in thousands)
Commercial business
Secured	$	14,676	$	23,299	$	10,124	$	16,820
Unsecured	115		715		119		719
Real estate:
One-to-four family residential	2,624		2,992		2,696		3,011
Commercial & multifamily residential
Commercial land	3,432		7,233		3,739		7,230
Income property multifamily	12,771		17,277		6,775		9,265
Owner occupied	8,669		12,249		8,971		10,932
Real estate construction:
One-to-four family residential
Land and acquisition	6,410		13,581		7,799		16,703
Residential construction	2,383		4,647		2,986		5,316
Commercial & multifamily residential
Income property multifamily	5,023		10,367		7,067		14,912
Consumer	1,449		1,776		3,207		3,960
Total	$	57,552	$	94,136	$	53,483	$	88,868

The following is an analysis of the recorded investment of the aged loan portfolio as of March 31, 2012 and December 31, 2011:

	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
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,006,841	$	3,279	$	3,606	$	—	$	6,885	$	14,676	$	1,028,402
Unsecured	46,796		235		119		—		354		115		47,265
Real estate:
One-to-four family residential	55,486		682		84		—		766		2,624		58,876
Commercial & multifamily residential
Commercial land	41,948		—		—		—		—		3,432		45,380
Income property multifamily	542,839		2,960		—		—		2,960		12,771		558,570
Owner occupied	369,579		1,948		—		—		1,948		8,669		380,196
Real estate construction:
One-to-four family residential
Land and acquisition	16,974		—		—		—		—		6,410		23,384
Residential construction	21,778		—		319		—		319		2,383		24,480
Commercial & multifamily residential
Income property multifamily	14,212		—		—		—		—		5,023		19,235
Owner occupied	16,008		—		—		—		—		—		16,008
Consumer	168,573		—		—		—		—		1,449		170,022
Total	$	2,301,034	$	9,104	$	4,128	$	—	$	13,232	$	57,552	$	2,371,818
	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
	(in thousands)
December 31, 2011
Commercial business
Secured	$	966,563	$	1,741	$	2,989	$	—	$	4,730	$	10,124	$	981,417
Unsecured	46,880		407		—		—		407		119		47,406
Real estate:
One-to-four family residential	60,764		603		—		—		603		2,696		64,063
Commercial & multifamily residential
Commercial land	46,161		781		—		—		781		3,739		50,681
Income property multifamily	524,225		2,872		121		—		2,993		6,775		533,993
Owner occupied	394,691		829		298		—		1,127		8,971		404,789
Real estate construction:
One-to-four family residential
Land and acquisition	17,249		153		—		—		153		7,799		25,201
Residential construction	19,555		1,390		—		—		1,390		2,986		23,931
Commercial & multifamily residential
Income property multifamily	13,810		—		—		—		—		7,067		20,877
Owner occupied	12,790		—		—		—		—		—		12,790
Consumer	179,753		141		122		—		263		3,207		183,223
Total	$	2,282,441	$	8,917	$	3,530	$	—	$	12,447	$	53,483	$	2,348,371

The following is an analysis of impaired loans as of March 31, 2012 and December 31, 2011:

	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
March 31, 2012
Commercial business
Secured	$	1,017,869	$	10,533	$	1,698	$	1,698	$	451	$	8,835	$	16,824	$	9,709	$	309
Unsecured	47,124		141		141		141		141		—		—		119		1
Real estate:
One-to-four family residential	56,823		2,053		355		368		72		1,698		1,848		2,266		1
Commercial & multifamily residential
Commercial land	42,369		3,011		—		—		—		3,011		6,052		3,405		—
Income property multifamily	549,035		9,535		4,579		4,612		1,087		4,956		8,556		8,083		115
Owner occupied	366,457		13,739		1,083		1,203		16		12,656		18,378		14,152		107
Real estate construction:
One-to-four family residential
Land and acquisition	17,693		5,691		—		—		—		5,691		11,026		6,539		—
Residential construction	20,993		3,487		18		1,468		18		3,469		4,209		4,286		358
Commercial & multifamily residential
Income property multifamily	14,212		5,023		—		—		—		5,023		10,367		6,045		—
Owner occupied	16,008		—		—		—		—		—		—		—		—
Consumer	168,971		1,051		—		—		—		1,051		1,052		1,672		—
Total	$	2,317,554	$	54,264	$	7,874	$	9,490	$	1,785	$	46,390	$	78,312	$	56,276	$	891
	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				Average Recorded Investment Impaired Loans		Interest Recognized on Impaired Loans
					Recorded Investment		Unpaid Principal Balance		Related Allowance		Recorded Investment		Unpaid Principal Balance
	(in thousands)
December 31, 2011
Commercial business
Secured	$	972,531	$	8,886	$	2,926	$	2,927	$	954	$	5,960	$	12,109	$	15,578	$	511
Unsecured	47,309		97		97		97		97		—		—		138		—
Real estate:
One-to-four family residential	61,584		2,479		582		590		96		1,897		2,136		2,494		—
Commercial & multifamily residential
Commercial land	46,882		3,799		—		—		—		3,799		6,773		4,263		—
Income property multifamily	527,362		6,631		687		759		63		5,944		7,700		8,881		59
Owner occupied	390,225		14,564		274		274		185		14,290		18,524		15,254		18
Real estate construction:
One-to-four family residential
Land and acquisition	17,813		7,388		450		948		—		6,938		11,978		8,972		116
Residential construction	18,847		5,084		59		1,509		59		5,025		5,116		4,535		—
Commercial & multifamily residential
Income property multifamily	13,810		7,067		—		—		—		7,067		14,947		7,065		—
Owner occupied	12,790		—		—		—		—		—		—		—		—
Consumer	180,930		2,293		151		225		30		2,142		2,639		3,880		15
Total	$	2,290,083	$	58,288	$	5,226	$	7,329	$	1,484	$	53,062	$	81,922	$	71,060	$	719

There were no Troubled Debt Restructurings ("TDR") during the three months ended March 31, 2012. The following is an analysis of loans classified as TDR during the three months ended March 31, 2011:

	Number of TDR Modifications	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(dollars in thousands)
Real estate construction: One-to-four family residential
Residential construction	1	36		36
Total	1	$	36	$	36

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 Company had commitments to lend $9.5 million and $535 thousand of additional funds on loans classified as TDR as of March 31, 2012 and December 31, 2011, respectively. The TDR modifications or concessions are made to increase the likelihood these borrowers with financial difficulties will be able to satisfy their debt obligations as amended. Credit losses for loans classified as TDR are measured the same as impaired loans. For impaired loans, an allowance is established when the collateral value (or discounted cash flows or observable market price) of the impaired loan is lower than the recorded investment of that loan.The Company did not have any loans modified as TDR within the past twelve months that have defaulted during the three months ended March 31, 2012.

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Securities

3 Months Ended

Mar. 31, 2012

Available-for-sale Securities [Abstract]

Securities

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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	652,263	$	18,650	$	(1,329	)	$	669,584
State and municipal securities	263,298		20,466		(212		)	283,552
U.S. government agency and government-sponsored enterprise securities	42,439		350		(37		)	42,752
Other securities	3,296		60		(31		)	3,325
Total	$	961,296	$	39,526	$	(1,609	)	$	999,213
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	678,631	$	19,323	$	(2,000	)	$	695,954
State and municipal securities	263,075		22,746		(58		)	285,763
U.S. government agency and government-sponsored enterprise securities	42,558		505		—			43,063
Other securities	3,296		64		(30		)	3,330
Total	$	987,560	$	42,638	$	(2,088	)	$	1,028,110

The scheduled contractual maturities of investment securities available for sale at March 31, 2012 are presented as follows:

	March 31, 2012
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	22,442	$	22,749
Due after one year through five years	78,072		80,627
Due after five years through ten years	190,442		199,359
Due after ten years	667,044		693,153
Total investment securities available-for-sale	$	958,000	$	995,888

The following table summarizes, as of March 31, 2012, the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	Carrying Amount
	(in thousands)
To Washington and Oregon State to secure public deposits	$	213,713
To Federal Home Loan Bank to secure advances	87,180
To Federal Reserve Bank to secure borrowings	54,778
Other securities pledged	47,878
Total securities pledged as collateral	$	403,549

The following tables show 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, 2012 and December 31, 2011:

	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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	166,921	$	(1,228	)	$	12,035	$	(101	)	$	178,956	(1,329		)
State and municipal securities	8,251		(188		)	960		(24		)	9,211		(212		)
U.S. government agency and government-sponsored enterprise securities	13,932		(37		)	—		—			13,932		(37		)
Other securities	—		—			969		(31		)	969		(31		)
Total	$	189,104	$	(1,453	)	$	13,964	$	(156	)	$	203,068	$	(1,609	)
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	238,875	$	(1,999	)	$	196	$	(1	)	$	239,071	$	(2,000	)
State and municipal securities	3,820		(24		)	950		(34		)	4,770		(58		)
Other securities	—		—			970		(30		)	970		(30		)
Total	$	242,695	$	(2,023	)	$	2,116	$	(65	)	$	244,811	$	(2,088	)

At March 31, 2012, there were eleven state and municipal government securities in an unrealized loss position, of which one was 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, 2012none of the rated obligations of state and local government entities held by the Company had an adverse 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 maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there were 34 U.S. government agency and government-sponsored enterprise mortgage-backed securities & collateralized mortgage obligations securities in an unrealized loss position, of which two 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 maturity, the Company does not consider these investments to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there was one U.S. government agency and government-sponsored enterprise security in an unrealized loss position for less than 12 months. The decline in fair value is attributable to changes in interest rates relative to where this investment falls within the yield curve and its individual characteristics. Because the Company does not intend to sell this security nor does the Company consider it more likely than not that it will be required to sell this security before the recovery of amortized cost basis, which may be maturity, the Company does not consider this investment to be other-than-temporarily impaired at March 31, 2012.

At March 31, 2012, there was one other security, a mortgage-backed securities fund 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, 2012 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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Allowance for Noncovered Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Tables)

3 Months Ended

Mar. 31, 2012

Financing Receivable, Allowance for Credit Losses [Line Items]

Changes in the Allowance for Unfunded Commitments and Letters of Credit

Changes in the allowance for unfunded commitments and letters of credit are summarized as follows:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands)
Beginning balance	$	1,535	$	1,165
Net changes in the allowance for unfunded commitments and letters of credit	130		495
Ending balance	$	1,665	$	1,660

Noncovered Loans [Member]

Financing Receivable, Allowance for Credit Losses [Line Items]

Allowance for Credit Losses on Financing Receivables

The following table shows a detailed analysis of the allowance for loan and lease losses for noncovered loans for the three months ended March 31, 2012 and 2011:

	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2012
Commercial business
Secured	$	24,745	$	(2,354	)	$	614	$	2,537		$	25,542	$	451	$	25,091
Unsecured	689		(5		)	44		58			786		141		645
Real estate:
One-to-four family residential	654		(116		)	43		108			689		72		617
Commercial & multifamily residential
Commercial land	488		(305		)	—		510			693		—		693
Income property multifamily	9,551		(2,008		)	18		2,688			10,249		1,087		9,162
Owner occupied	9,606		(365		)	53		(739		)	8,555		16		8,539
Real estate construction:
One-to-four family residential
Land and acquisition	2,331		(204		)	47		(503		)	1,671		—		1,671
Residential construction	864		—			—		138			1,002		18		984
Commercial & multifamily residential
Income property multifamily	665		—			—		(442		)	223		—		223
Owner occupied	35		—			—		9			44		—		44
Consumer	2,719		(1,093		)	373		130			2,129		—		2,129
Unallocated	694		—			—		6			700		—		700
Total	$	53,041	$	(6,450	)	$	1,192	$	4,500		$	52,283	$	1,785	$	50,498
	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2011
Commercial business
Secured	$	21,811	$	(3,287	)	$	96	$	3,687		$	22,307	$	247	$	22,060
Unsecured	738		(84		)	9		(45		)	618		73		545
Real estate:
One-to-four family residential	1,100		(448		)	—		448			1,100		1		1,099
Commercial & multifamily residential
Commercial land	634		—			—		(79		)	555		58		497
Income property multifamily	15,210		(365		)	42		(2,591		)	12,296		51		12,245
Owner occupied	9,692		—			31		689			10,412		—		10,412
Real estate construction:
One-to-four family residential
Land and acquisition	3,769		(768		)	1,068		(773		)	3,296		355		2,941
Residential construction	2,292		(659		)	36		449			2,118		34		2,084
Commercial & multifamily residential
Income property multifamily	274		(487		)	—		340			127		—		127
Owner occupied	70		—			—		(2		)	68		—		68
Consumer	2,120		(925		)	63		1,160			2,418		—		2,418
Unallocated	3,283		—			—		(3,283		)	—		—		—
Total	$	60,993	$	(7,023	)	$	1,345	$	—		$	55,315	$	819	$	54,496

Financing Receivable Credit Quality Indicators [Table Text Block]

The following is an analysis of the credit quality of our noncovered loan portfolio as of March 31, 2012 and December 31, 2011:

	March 31, 2012			December 31, 2011
	Weighted- Average Risk Rating	Recorded Investment Noncovered Loans		Weighted- Average Risk Rating	Recorded Investment Noncovered Loans
	(dollars in thousands)
Commercial business
Secured	4.92	$	1,028,402	4.89	$	981,417
Unsecured	4.26	47,265		4.25	47,406
Real estate:
One-to-four family residential	4.76	58,876		4.81	64,063
Commercial & multifamily residential
Commercial land	5.11	45,380		5.22	50,681
Income property multifamily	4.00	558,570		4.94	533,993
Owner occupied	5.09	380,196		5.05	404,789
Real estate construction:
One-to-four family residential
Land and acquisition	6.29	23,384		6.43	25,201
Residential construction	5.80	24,480		5.94	23,931
Commercial & multifamily residential
Income property multifamily	5.06	19,235		5.49	20,877
Owner occupied	4.60	16,008		4.55	12,790
Consumer	4.22	170,022		4.24	183,223
Total recorded investment of noncovered loans		$	2,371,818		$	2,348,371

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Fair Value Accounting and Measurement

3 Months Ended

Mar. 31, 2012

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.

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, 2012 and December 31, 2011 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  at March 31, 2012		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	669,584	$	—	$	669,584	$	—
State and municipal debt securities	283,552		—		283,552		—
U.S. government agency and government-sponsored enterprise securities	42,752		—		42,752		—
Other securities	3,325		—		3,325		—
Total securities available for sale	$	999,213	$	—	$	999,213	$	—
Other assets (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	14,950	$	—	$	14,950	$	—

	Fair value  at December 31, 2011		Fair Value Measurements at Reporting Date Using
			Level 1		Level 2		Level 3
	(in thousands)
Assets
Securities available for sale
U.S. government agency and government-sponsored enterprise mortgage-back securities and collateralized mortgage obligations	$	695,954	$	—	$	695,954	$	—
State and municipal debt securities	285,763		—		285,763		—
U.S. government agency and government-sponsored enterprise securities	43,063		—		43,063		—
Other securities	3,330		—		3,330		—
Total securities available for sale	$	1,028,110	$	—	$	1,028,110	$	—
Other assets (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—
Liabilities
Other liabilities (Interest rate contracts)	$	16,302	$	—	$	16,302	$	—

There were no transfers between Level 1 and Level 2 of the valuation hierarchy during the three month period ended March 31, 2012.

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 if the loan is collateral-dependent loan. Generally, the Company utilizes the fair market value of the collateral to measure impairment.

Other real estate owned and Other personal property owned—OREO and OPPO are real and personal property that the Bank has taken ownership of in partial or full satisfaction of a loan or loans. OREO and OPPO is recorded at the lower of the carrying amount of the loan or fair value less estimated costs to sell. This amount becomes the property’s new basis. Any write-downs based on the property fair value less estimated cost to sell at the date of acquisition are charged to the allowance for loan and lease losses. Management periodically reviews OREO and OPPO in an effort to ensure the property is carried at the lower of its new basis or fair value, net of estimated costs to sell. Any write-downs subsequent to acquisition are charged to earnings.

The following table sets forth the Company's assets that were measured using fair value estimates on a nonrecurring basis at March 31, 2012 and 2011.

	Fair value  at March 31, 2012		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2012
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	12,416	$	—	$	—	$	12,416	$	2,881
Noncovered OREO	3,510		—		—		3,510		1,730
Covered OREO	1,917		—		—		1,917		767
Noncovered OPPO	2,334		—		—		2,334		1,950
	$	20,177	$	—	$	—	$	20,177	$	7,328

	Fair value  at March 31, 2011		Fair Value Measurements at Reporting Date Using						Losses During the Three Months Ended March 31, 2011
			Level 1		Level 2		Level 3
	(in thousands)
Impaired loans	$	31,712	$	—	$	—	$	31,712	$	4,908
Noncovered OREO	4,490		—		—		4,490		2,001
Covered OREO	31		—		—		31		14
Noncovered OPPO	2,420		—		—		2,420		185
	$	38,653	$	—	$	—	$	38,653	$	7,108

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 and OPPO disclosed above represent the write-downs taken at foreclosure that were charged to the allowance for loan and lease losses, as well as subsequent write-downs from updated appraisals that were charged 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 during the first quarter of 2012, along with the valuation techniques used, are shown in the following table:

	Fair value  at March 31, 2012		Valuation Technique	Unobservable Input	Range (Weighted Average) (1)
	(dollars in thousands)
Impaired loans	$	12,416	Market comparable	Adjustment to Appraisal Value	0% - 37% (12%)
Noncovered OREO	3,510		Market comparable	Adjustment to Appraisal Value	N/A (2)
Covered OREO	1,917		Market comparable	Adjustment to Appraisal Value	0% - 23% (3%)
Noncovered OPPO	2,334		Market comparable	Adjustment to Appraisal Value	N/A (2)
(1) Discount to appraisal value.
(2) Quantitative disclosures are not provided for noncovered OREO and noncovered OPPO 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 are priced using a combination of market activity, industry recognized information sources, yield curves, discounted cash flow models and other factors (Level 2).

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—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, 2012 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 covered loans, fair value is estimated by discounting the expected future cash flows using a lending rate that would have been offered on March 31, 2012 (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 as their basis, readily observable market parameters (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 and FRB borrowings—The fair value of Federal Home Loan Bank of Seattle (the “FHLB”) advances and Federal Reserve Bank of San Francisco (the “FRB”) borrowings are estimated based on discounting the future cash flows using the market rate currently offered (Level 2).

Repurchase Agreements—The fair value of securities sold under agreement to repurchase is estimated based on discounting the future cash flows using the market rate currently offered (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 table summarizes carrying amounts and estimated fair values of selected financial instruments as well as assumptions used by the Company in estimating fair value:

	March 31, 2012										December 31, 2011
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3		Carrying Amount		Fair Value
	(in thousands)
Assets
Cash and due from banks	$	93,904	$	93,904	$	93,904	$	—	$	—	$	91,364	$	91,364
Interest-earning deposits with banks	297,553		297,553		297,553		—		—		202,925		202,925
Securities available for sale	999,213		999,213		—		999,213		—		1,028,110		1,028,110
FHLB stock	22,215		22,215		—		22,215		—		22,215		22,215
Loans held for sale	2,066		2,066		—		—		2,066		2,148		2,148
Loans	2,821,148		2,929,332		—		—		2,929,332		2,827,259		2,957,345
FDIC loss-sharing asset	159,061		62,609		—		—		62,609		175,071		71,788
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302
Liabilities
Deposits	$	3,865,445	$	3,891,744	$	3,328,620	$	563,124	$	—	$	3,815,529	$	3,817,013
FHLB Advances	114,715		114,941		—		114,941		—		119,009		119,849
Repurchase agreements	25,000		26,442		—		26,442		—		25,000		26,580
Interest rate contracts	14,950		14,950		—		14,950		—		16,302		16,302

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Covered Assets and FDIC Loss-sharing Asset (Notes)

3 Months Ended

Mar. 31, 2012

Covered Assets And FDIC Loss Sharing Asset

Covered Assets and FDIC Loss sharing Asset

Covered Assets and FDIC Loss-sharing Asset

Covered Assets

Covered assets consist of loans and OREO acquired in FDIC assisted acquisitions during 2010 and 2011, for which the Bank entered into loss-sharing agreements, whereby the FDIC will cover a substantial portion of any future losses on loans (and related unfunded loan commitments), OREO and certain accrued interest on loans. 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 and, with respect to loss-sharing agreements for two acquisitions completed in 2010, will absorb 95% of losses and share in 95% of loss recoveries thereafter. The loss-sharing provisions of the agreements for commercial and single-family mortgage loans are in effect for five and ten years, respectively, from the acquisition dates and the loss recovery provisions are in effect for eight and ten years, respectively, from the acquisition dates.

Ten years and forty-five days after the acquisition dates, the Bank shall pay to the FDIC a clawback in the event the losses from the acquisitions fail to reach stated levels. This clawback shall be in the amount of 50% of the excess, if any, of 20% of the stated threshold amounts, less the sum of 25% of the asset premium (discount), 20% or 25% of the cumulative loss-sharing payments (depending on the particular agreement), and the cumulative servicing amount. As of March 31, 2012, the net present value of the Bank’s estimated clawback liability is $3.6 million, which is included in other liabilities on the consolidated balance sheets.

The following is an analysis of our covered loans, net of related allowance for losses on covered loans as of March 31, 2012 and December 31, 2011:

	March 31, 2012					December 31, 2011
	Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses		Covered Loans		Weighted- Average Risk Rating	Allowance for Loan Losses
	(dollars in thousands)
Commercial business	$	175,623	6.00	$	6,320	$	195,737	6.05	$	977
Real estate:
One-to-four family residential	74,733		5.35	2,947		79,328		5.32	678
Commercial and multifamily residential	299,202		5.57	6,840		311,308		5.65	2,683
Total real estate	373,935			9,787		390,636			3,361
Real estate construction:
One-to-four family residential	44,335		7.25	1,604		54,402		7.32	136
Commercial and multifamily residential	21,330		7.04	711		23,661		7.32	86
Total real estate construction	65,665			2,315		78,063			222
Consumer	51,661		4.71	2,082		56,877		4.84	384
Subtotal of covered loans	666,884			$	20,504	721,313			$	4,944
Less:
Valuation discount resulting from acquisition accounting	144,767					184,440
Allowance for loan losses	20,504					4,944
Covered loans, net of valuation discounts and allowance for loan losses	$	501,613				$	531,929

Certain acquired 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. Acquired loans that have common risk characteristics are aggregated into pools. The Company re-measures 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 re-measurement date. Loss severity factors are based upon actual charge-off data within the loan pools and recovery lags are based upon experience with the collateral within the loan pools.

Acquired loans are also subject to the Company’s internal and external credit review and are risk rated using the same criteria as loans originated by the Company. However, risk ratings are not a clear indicator of losses on acquired loans as a majority of the losses are recoverable from the FDIC under the loss-sharing agreements.

Draws on acquired loans, advanced subsequent to the loan acquisition date, are accounted for under ASC 450-20 and those amounts are also subject to the Company’s internal and external credit review. An allowance for loan losses is estimated in a similar manner as the originated loan portfolio, and a provision for loan losses is charged to earnings as necessary.

The excess of cash flows expected to be collected over the initial fair value of acquired 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 table shows the changes in accretable yield for acquired loans for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	259,669		$	256,572
Accretion	(27,658		)	(21,303		)
Disposals	(1,799		)	(3,159		)
Reclassifications from (to) nonaccretable difference	9,465			(14,759		)
Balance at end of period	$	239,677		$	217,351

During the three months ended March 31, 2012, the Company recorded a provision expense for losses on covered loans of $15.7 million. Of this amount, $16.1 million was impairment expense calculated in accordance with ASC 310-30 and $400 thousand was a negative provision to adjust the allowance for loss calculated under ASC 450-20 for draws on acquired loans. The impact to earnings of the $15.7 million of provision expense for covered loans was partially offset through noninterest income by a $12.5 million increase in the FDIC loss-sharing asset.

The changes in the ALLL for covered loans for the three months ended March 31, 2012 and 2011 are summarized as follows:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Beginning balance	$	4,944		$	6,055
Loans charged off	(562		)	—
Recoveries	437			—
Provision charged to expense	15,685			(422		)
Ending balance	$	20,504		$	5,633

The following table sets forth activity in covered OREO at carrying value for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Covered OREO:
Balance, beginning of period	$	28,126		$	14,443
Transfers in	2,468			3,425
Additional OREO write-downs	(1,505		)	(15		)
Proceeds from sale of OREO property	(8,025		)	(6,959		)
Gain on sale of OREO	3,366			2,633
Total covered OREO, end of period	$	24,430		$	13,527

The covered OREO is covered by loss-sharing agreements with the FDIC in which the FDIC will assume 80% of additional write-downs and losses on covered OREO sales, or 95%, if applicable, of additional write-downs and losses on covered OREO sales if the minimum loss share thresholds are met.

FDIC Loss-sharing Asset

At March 31, 2012, the FDIC loss-sharing asset is comprised of a $135.6 million FDIC indemnification asset and a $23.5 million FDIC receivable. The indemnification represents the cash flows the Company expects to collect from the FDIC under the loss-sharing agreements and the FDIC receivable represents the reimbursable amounts from the FDIC that have not yet been received.

For covered loans, the Company remeasures contractual and expected cash flows on a quarterly basis. When the quarterly re-measurement 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, 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 re-measurement 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, 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 loan pool.

The following table shows a detailed analysis of the FDIC loss-sharing asset for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Balance at beginning of period	$	175,071		$	205,991
Adjustments not reflected in income
Cash received from the FDIC	(14,804		)	—
FDIC reimbursable losses, net	462			1,836
Adjustments reflected in income
Amortization, net	(13,873		)	(13,569		)
Impairment	12,548			(338		)
Sale of other real estate	(2,067		)	(867		)
Other	1,724			—
Balance at end of period	$	159,061		$	193,053

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Earnings per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Earnings Per Share [Abstract]
Net Income	$ 8,902	$ 5,779
Less: Earnings allocated to participating securities	(132)	(53)
Earnings allocated to common shareholders, Basic	8,770	5,726
Weighted average common shares outstanding	39,195	39,043
Basic earnings per common share	$ 0.22	$ 0.15
Dilutive effect of equity awards and warrants	103	113
Earnings allocated to common shareholders, Diluted	$ 8,770	$ 5,726
Weighted average diluted common shares outstanding	39,298	39,156
Diluted earnings per common share	$ 0.22	$ 0.15
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive.	46	54

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

3 Months Ended

Mar. 31, 2012

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

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

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 Accounting Standards Codification ("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 systematically calculated quarterly using quantitative and qualitative information about specific loan classes. The minimum required level an entity develops a methodology to determine its allowance for loan and lease losses is by general categories of loans, such as commercial business, real estate, and consumer. However, the Company’s methodology in determining its allowance for loan and lease losses 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.

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 market place, 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. 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, 2012 and 2011. 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 strive towards maintaining a conservative approach to credit quality and will continue to prudently adjust our ALLL as necessary in order to maintain adequate reserves. The Company carefully monitors the loan portfolio and continues to emphasize the importance of credit quality while continuously strengthening loan monitoring systems and controls.

The following table shows a detailed analysis of the allowance for loan and lease losses for noncovered loans for the three months ended March 31, 2012 and 2011:

	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2012
Commercial business
Secured	$	24,745	$	(2,354	)	$	614	$	2,537		$	25,542	$	451	$	25,091
Unsecured	689		(5		)	44		58			786		141		645
Real estate:
One-to-four family residential	654		(116		)	43		108			689		72		617
Commercial & multifamily residential
Commercial land	488		(305		)	—		510			693		—		693
Income property multifamily	9,551		(2,008		)	18		2,688			10,249		1,087		9,162
Owner occupied	9,606		(365		)	53		(739		)	8,555		16		8,539
Real estate construction:
One-to-four family residential
Land and acquisition	2,331		(204		)	47		(503		)	1,671		—		1,671
Residential construction	864		—			—		138			1,002		18		984
Commercial & multifamily residential
Income property multifamily	665		—			—		(442		)	223		—		223
Owner occupied	35		—			—		9			44		—		44
Consumer	2,719		(1,093		)	373		130			2,129		—		2,129
Unallocated	694		—			—		6			700		—		700
Total	$	53,041	$	(6,450	)	$	1,192	$	4,500		$	52,283	$	1,785	$	50,498
	Beginning Balance		Charge-offs			Recoveries		Provision			Ending Balance		Specific Reserve		General Allocation
	(in thousands)
Three months ended March 31, 2011
Commercial business
Secured	$	21,811	$	(3,287	)	$	96	$	3,687		$	22,307	$	247	$	22,060
Unsecured	738		(84		)	9		(45		)	618		73		545
Real estate:
One-to-four family residential	1,100		(448		)	—		448			1,100		1		1,099
Commercial & multifamily residential
Commercial land	634		—			—		(79		)	555		58		497
Income property multifamily	15,210		(365		)	42		(2,591		)	12,296		51		12,245
Owner occupied	9,692		—			31		689			10,412		—		10,412
Real estate construction:
One-to-four family residential
Land and acquisition	3,769		(768		)	1,068		(773		)	3,296		355		2,941
Residential construction	2,292		(659		)	36		449			2,118		34		2,084
Commercial & multifamily residential
Income property multifamily	274		(487		)	—		340			127		—		127
Owner occupied	70		—			—		(2		)	68		—		68
Consumer	2,120		(925		)	63		1,160			2,418		—		2,418
Unallocated	3,283		—			—		(3,283		)	—		—		—
Total	$	60,993	$	(7,023	)	$	1,345	$	—		$	55,315	$	819	$	54,496

Changes in the allowance for unfunded commitments and letters of credit are summarized as follows:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands)
Beginning balance	$	1,535	$	1,165
Net changes in the allowance for unfunded commitments and letters of credit	130		495
Ending balance	$	1,665	$	1,660

Risk Elements

The extension of credit in the form of loans to individuals and businesses is one of our principal commerce 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, type of borrower and by limiting the aggregation of debt to a single borrower.

The monitoring process for the loan portfolio includes periodic reviews of individual loans with risk ratings assigned to each loan. Based on the analysis, loans are given a risk rating of 1-10 based on the following criteria:

• ratings of 1-3 indicate minimal to low credit risk,

• ratings of 4-5 indicate an average credit risk with adequate repayment capacity when prolonged periods of adversity do not exist,

• rating of 6 indicate higher than average risk requiring greater than routine attention by bank personnel due to conditions affecting the borrower, the borrower's industry or economic environment,

• rating of 7 indicate 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,

• rating of 8 indicates a loss is possible if loan weaknesses are not corrected,

• rating of 9 indicates loss is highly probable; however, the amount of loss has not yet been determined,

• and a rating of 10 indicates the loan is uncollectable, and when identified is charged-off.

Loans with a risk rating of 1-6 are considered Pass loans and loans with risk ratings of 7, 8, 9 and 10 are considered Special Mention, Substandard, Doubtful and Loss, respectively. Loans with a risk rating of Substandard or worse are reported as classified loans in our allowance for loan and lease losses 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. 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 non-accrual 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.

The following is an analysis of the credit quality of our noncovered loan portfolio as of March 31, 2012 and December 31, 2011:

	March 31, 2012			December 31, 2011
	Weighted- Average Risk Rating	Recorded Investment Noncovered Loans		Weighted- Average Risk Rating	Recorded Investment Noncovered Loans
	(dollars in thousands)
Commercial business
Secured	4.92	$	1,028,402	4.89	$	981,417
Unsecured	4.26	47,265		4.25	47,406
Real estate:
One-to-four family residential	4.76	58,876		4.81	64,063
Commercial & multifamily residential
Commercial land	5.11	45,380		5.22	50,681
Income property multifamily	4.00	558,570		4.94	533,993
Owner occupied	5.09	380,196		5.05	404,789
Real estate construction:
One-to-four family residential
Land and acquisition	6.29	23,384		6.43	25,201
Residential construction	5.80	24,480		5.94	23,931
Commercial & multifamily residential
Income property multifamily	5.06	19,235		5.49	20,877
Owner occupied	4.60	16,008		4.55	12,790
Consumer	4.22	170,022		4.24	183,223
Total recorded investment of noncovered loans		$	2,371,818		$	2,348,371

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Changes in Noncovered Other Real Estate Owned

3 Months Ended

Mar. 31, 2012

Other Real Estate and Foreclosed Assets [Abstract]

Changes in Noncovered Other Real Estate Owned

Changes in Noncovered Other Real Estate Owned

The following table sets forth activity in noncovered OREO for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Noncovered OREO:
Balance, beginning of period	$	22,893		$	30,991
Transfers in, net of write-downs ($118 and $91, respectively)	3,803			2,042
OREO improvements	11			251
Additional OREO write-downs	(1,722		)	(1,910		)
Proceeds from sale of OREO property	(7,829		)	(5,372		)
Gain (loss) on sale of OREO	(412		)	79
Total noncovered OREO, end of period	$	16,744		$	26,081

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Goodwill and Intangible Assets (Notes)

3 Months Ended

Mar. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and 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 during the third quarter on an annual basis 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 approximately 10 years.

The following table sets forth activity for goodwill and intangible assets for the period:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Total goodwill	$	115,554		$	109,639
Core deposit intangible:
Gross core deposit intangible balance, beginning of period	32,441			26,651
Accumulated amortization, beginning of period	(12,275		)	(7,955		)
Core deposit intangible, net, beginning of period	20,166			18,696
CDI current period amortization	(1,150		)	(984		)
Total core deposit intangible, end of period	19,016			17,712
Total goodwill and intangible assets, end of period	$	134,570		$	127,351

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2012 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2012	$	3,295
2013	3,964
2014	3,397
2015	2,645
2016	2,184

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Securities (Narrative) (Details)	Mar. 31, 2012 security
U.S. Government and Government-Sponsored Enterprise Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number Of Securities In Unrealized Loss Position	1
Number Of Securities In Continuous Loss Position For Twelve Months or More	2
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Number Of Securities In Continuous Loss Position For Twelve Months or More	1
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Number Of Securities In Unrealized Loss Position	11
Number Of Securities In Continuous Loss Position For Twelve Months or More	1
Number Of Securities Held With Adverse Credit Ratings	0
U.S. Government Agency and Government-Sponsored Enterprise Mortgage-Backed Securities and Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Number Of Securities In Unrealized Loss Position	34

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Covered Assets and FDIC Loss-sharing Asset (FDIC Loss-sharing Asset) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Covered Assets And FDIC Loss Sharing Asset
Balance at beginning of period	$ 175,071	$ 205,991
Cash received from the FDIC	(14,804)	0
FDIC reimbursable losses, net	462	1,836
Amortization, net	(13,873)	(13,569)
Impairment	12,548	(338)
Sale of other real estate	(2,067)	(867)
Other	1,724	0
Balance at end of period	$ 159,061	$ 193,053

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Securities (Tables)

3 Months Ended

Mar. 31, 2012

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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	652,263	$	18,650	$	(1,329	)	$	669,584
State and municipal securities	263,298		20,466		(212		)	283,552
U.S. government agency and government-sponsored enterprise securities	42,439		350		(37		)	42,752
Other securities	3,296		60		(31		)	3,325
Total	$	961,296	$	39,526	$	(1,609	)	$	999,213
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	678,631	$	19,323	$	(2,000	)	$	695,954
State and municipal securities	263,075		22,746		(58		)	285,763
U.S. government agency and government-sponsored enterprise securities	42,558		505		—			43,063
Other securities	3,296		64		(30		)	3,330
Total	$	987,560	$	42,638	$	(2,088	)	$	1,028,110

Schedule of Contractual Maturities of Investment Securities Available for Sale

The scheduled contractual maturities of investment securities available for sale at March 31, 2012 are presented as follows:

	March 31, 2012
	Amortized Cost		Fair Value
	(in thousands)
Due within one year	$	22,442	$	22,749
Due after one year through five years	78,072		80,627
Due after five years through ten years	190,442		199,359
Due after ten years	667,044		693,153
Total investment securities available-for-sale	$	958,000	$	995,888

Carrying Value of Securities Pledged As Collateral

The following table summarizes, as of March 31, 2012, the carrying value of securities pledged as collateral to secure public deposits, borrowings and other purposes as permitted or required by law:

	Carrying Amount
	(in thousands)
To Washington and Oregon State to secure public deposits	$	213,713
To Federal Home Loan Bank to secure advances	87,180
To Federal Reserve Bank to secure borrowings	54,778
Other securities pledged	47,878
Total securities pledged as collateral	$	403,549

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

The following tables show 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, 2012 and December 31, 2011:

	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, 2012
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	166,921	$	(1,228	)	$	12,035	$	(101	)	$	178,956	(1,329		)
State and municipal securities	8,251		(188		)	960		(24		)	9,211		(212		)
U.S. government agency and government-sponsored enterprise securities	13,932		(37		)	—		—			13,932		(37		)
Other securities	—		—			969		(31		)	969		(31		)
Total	$	189,104	$	(1,453	)	$	13,964	$	(156	)	$	203,068	$	(1,609	)
December 31, 2011
U.S. government agency and government-sponsored enterprise mortgage-backed securities and collateralized mortgage obligations	$	238,875	$	(1,999	)	$	196	$	(1	)	$	239,071	$	(2,000	)
State and municipal securities	3,820		(24		)	950		(34		)	4,770		(58		)
Other securities	—		—			970		(30		)	970		(30		)
Total	$	242,695	$	(2,023	)	$	2,116	$	(65	)	$	244,811	$	(2,088	)

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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets

The following table sets forth activity for goodwill and intangible assets for the period:

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Total goodwill	$	115,554		$	109,639
Core deposit intangible:
Gross core deposit intangible balance, beginning of period	32,441			26,651
Accumulated amortization, beginning of period	(12,275		)	(7,955		)
Core deposit intangible, net, beginning of period	20,166			18,696
CDI current period amortization	(1,150		)	(984		)
Total core deposit intangible, end of period	19,016			17,712
Total goodwill and intangible assets, end of period	$	134,570		$	127,351

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, 2012 and the succeeding four years:

	Amount
	(in thousands)
Year ending December 31,
2012	$	3,295
2013	3,964
2014	3,397
2015	2,645
2016	2,184

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Covered Assets and FDIC Loss-sharing Asset (Changes in Allowance for Covered Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Provision for loan and lease losses	$ 20,185	$ (422)
Covered Loans [Member]
Covered Assets And FDIC Loss Sharing Asset [Line Items]
Beginning balance	4,944	6,055
Loans charged off	(562)	0
Recoveries	(437)	0
Provision for loan and lease losses	15,685	(422)
Ending balance	$ 20,504	$ 5,633

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Allowance for Noncovered Loan and Lease Losses and Unfunded Commitments and Letters of Credit (Narrative) (Details) (Maximum [Member])	3 Months Ended
	Mar. 31, 2012
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of unallocated loan amount	5.00%

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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Interest Income
Loans	$ 61,777	$ 47,429
Taxable securities	5,245	4,417
Tax-exempt securities	2,525	2,467
Federal funds sold and deposits in banks	165	298
Total interest income	69,712	54,611
Interest Expense
Deposits	1,779	3,079
Federal Home Loan Bank advances	750	694
Long-term obligations	0	251
Other borrowings	120	138
Total interest expense	2,649	4,162
Net Interest Income	67,063	50,449
Provision for loan and lease losses	20,185	(422)
Net interest income after provision (recapture) for loan and lease losses	46,878	50,871
Noninterest Income (Loss)
Service charges and other fees	7,177	6,288
Merchant services fees	2,018	1,633
Gain on sale of investment securities, net	62	0
Bank owned life insurance	711	505
Change in FDIC loss sharing asset	(1,668)	(14,774)
Other	1,274	929
Total noninterest income (loss)	9,574	(5,419)
Noninterest Expense
Compensation and employee benefits	21,995	18,921
Occupancy	5,333	4,397
Merchant processing	873	883
Advertising and promotion	882	901
Data processing and communications	2,213	1,924
Legal and professional fees	1,609	1,413
Taxes, licenses and fees	1,355	865
Regulatory premiums	860	2,195
Net cost (benefit) of operation of other real estate owned	910	(442)
Amortization of intangibles	1,150	984
Other	7,172	5,305
Total noninterest expense	44,352	37,346
Income before income taxes	12,100	8,106
Income tax provision	3,198	2,327
Net Income	8,902	5,779
Earnings per common share
Basic ($ per share)	$ 0.22	$ 0.15
Diluted ($ per share)	$ 0.22	$ 0.15
Dividends paid per common share	$ 0.37	$ 0.03
Weighted average number of common shares outstanding	39,195	39,043
Weighted average number of diluted common shares outstanding	39,298	39,156
Noncovered Loans [Member]
Interest Expense
Provision for loan and lease losses	4,500	0
Covered Loans [Member]
Interest Expense
Provision for loan and lease losses	$ 15,685	$ (422)

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Accounting Pronouncements Recently Issued

3 Months Ended

Mar. 31, 2012

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Accounting Pronouncements Recently Issued

Accounting Pronouncements Recently Issued

In May 2011, the Financial Accounting Standards Board ("FASB") issued ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. Generally Accepted Accounting Principles (“GAAP”) and International Financial Reporting Standards (“IFRS”) (Topic 820). ASU 2011-04 developed common requirements between GAAP and IFRS for measuring fair value and for disclosing information about fair value measurements. The Company adopted this ASU during the current period with no impact on the Company's financial condition or results of operations.

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Fair Value Accounting and Measurement (Quantitative Information About Level 3 Fair Value Measurements) (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified					3 Months Ended														3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012 Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2011 Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2012 Market Approach Valuation Technique [Member] Impaired Loans [Member] Minimum [Member] Fair Value, Inputs, Level 3 [Member]		Mar. 31, 2012 Market Approach Valuation Technique [Member] Impaired Loans [Member] Maximum [Member] Fair Value, Inputs, Level 3 [Member]		Mar. 31, 2012 Market Approach Valuation Technique [Member] Impaired Loans [Member] Weighted Average [Member] Fair Value, Inputs, Level 3 [Member]		Mar. 31, 2012 Noncovered Loans [Member]	Mar. 31, 2011 Noncovered Loans [Member]	Mar. 31, 2012 Noncovered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2011 Noncovered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2012 Covered Loans [Member]	Mar. 31, 2011 Covered Loans [Member]	Mar. 31, 2012 Covered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2011 Covered Loans [Member] Fair Value, Inputs, Level 3 [Member]	Mar. 31, 2012 Covered Loans [Member] Market Approach Valuation Technique [Member] Other Real Estate Owned [Member] Minimum [Member] Fair Value, Inputs, Level 3 [Member]		Mar. 31, 2012 Covered Loans [Member] Market Approach Valuation Technique [Member] Other Real Estate Owned [Member] Maximum [Member] Fair Value, Inputs, Level 3 [Member]		Mar. 31, 2012 Covered Loans [Member] Market Approach Valuation Technique [Member] Other Real Estate Owned [Member] Weighted Average [Member] Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans	$ 12,416	$ 31,712	$ 12,416	$ 31,712
OREO											3,510	4,490	3,510	4,490	1,917	31	1,917	31
OPPO											$ 2,334	$ 2,420	$ 2,334	$ 2,420
Fair Value Inputs, Comparability Adjustments					0.00%	[1]	37.00%	[1]	12.00%	[1]									0.00%	[1]	23.00%	[1]	3.00%	[1]

[1] Discount recorded to appraisal value.

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Derivatives and Hedging Activities (Tables) (Not Designated as Hedging Instrument [Member])

3 Months Ended

Mar. 31, 2012

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 derivative instruments at March 31, 2012 and 2011:

	Asset Derivatives						Liability Derivatives
As of March 31,	2012			2011			2012			2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in thousands)
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14,950	Other assets	$	9,050	Other liabilities	$	14,950	Other liabilities	$	9,050

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Noncovered Loans (Analysis of the Aged Loan Portfolio) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	$ 2,301,034	$ 2,282,441
30 - 59 Days Past Due	9,104	8,917
60 - 89 Days Past Due	4,128	3,530
Greater than 90 Days Past Due	0	0
Total Past Due	13,232	12,447
Nonaccrual Loans	57,552	53,483
Loans Receivable, Net	2,371,818	2,348,371
Commercial Portfolio Segment [Member] | Secured Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	1,006,841	966,563
30 - 59 Days Past Due	3,279	1,741
60 - 89 Days Past Due	3,606	2,989
Greater than 90 Days Past Due	0	0
Total Past Due	6,885	4,730
Nonaccrual Loans	14,676	10,124
Loans Receivable, Net	1,028,402	981,417
Commercial Portfolio Segment [Member] | Unsecured Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	46,796	46,880
30 - 59 Days Past Due	235	407
60 - 89 Days Past Due	119	0
Greater than 90 Days Past Due	0	0
Total Past Due	354	407
Nonaccrual Loans	115	119
Loans Receivable, Net	47,265	47,406
Real Estate Portfolio Segment [Member] | One-to-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	55,486	60,764
30 - 59 Days Past Due	682	603
60 - 89 Days Past Due	84	0
Greater than 90 Days Past Due	0	0
Total Past Due	766	603
Nonaccrual Loans	2,624	2,696
Loans Receivable, Net	58,876	64,063
Real Estate Portfolio Segment [Member] | Commercial Land [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	41,948	46,161
30 - 59 Days Past Due	0	781
60 - 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	781
Nonaccrual Loans	3,432	3,739
Loans Receivable, Net	45,380	50,681
Real Estate Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	542,839	524,225
30 - 59 Days Past Due	2,960	2,872
60 - 89 Days Past Due	0	121
Greater than 90 Days Past Due	0	0
Total Past Due	2,960	2,993
Nonaccrual Loans	12,771	6,775
Loans Receivable, Net	558,570	533,993
Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	369,579	394,691
30 - 59 Days Past Due	1,948	829
60 - 89 Days Past Due	0	298
Greater than 90 Days Past Due	0	0
Total Past Due	1,948	1,127
Nonaccrual Loans	8,669	8,971
Loans Receivable, Net	380,196	404,789
Real Estate Construction Portfolio Segment [Member] | Income Property Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	14,212	13,810
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	0
Nonaccrual Loans	5,023	7,067
Loans Receivable, Net	19,235	20,877
Real Estate Construction Portfolio Segment [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	16,008	12,790
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	0
Nonaccrual Loans	0	0
Loans Receivable, Net	16,008	12,790
Real Estate Construction Portfolio Segment [Member] | Land and Acquisition [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	16,974	17,249
30 - 59 Days Past Due	0	153
60 - 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	153
Nonaccrual Loans	6,410	7,799
Loans Receivable, Net	23,384	25,201
Real Estate Construction Portfolio Segment [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	21,778	19,555
30 - 59 Days Past Due	0	1,390
60 - 89 Days Past Due	319	0
Greater than 90 Days Past Due	0	0
Total Past Due	319	1,390
Nonaccrual Loans	2,383	2,986
Loans Receivable, Net	24,480	23,931
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	168,573	179,753
30 - 59 Days Past Due	0	141
60 - 89 Days Past Due	0	122
Greater than 90 Days Past Due	0	0
Total Past Due	0	263
Nonaccrual Loans	1,449	3,207
Loans Receivable, Net	$ 170,022	$ 183,223

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Earnings per Common Share

3 Months Ended

Mar. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Common Share

Earnings per Common Share

Basic Earnings per Share (“EPS”) is computed by dividing income applicable to common shareholders by the weighted average number of common shares outstanding for the period. Common shares outstanding include common stock and vested restricted stock awards where recipients have satisfied the vesting terms. Diluted EPS reflects the assumed conversion of all dilutive securities, applying the treasury stock method. The Company calculates earnings per share using the two-class method as described in the Earnings per Share topic of the FASB ASC. The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2012 and 2011:

	Three Months Ended
	March 31,
	2012		2011
	(in thousands except per share)
Basic EPS:
Net income	$	8,902	$	5,779
Less: Earnings allocated to participating securities	(132)		(53)
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Basic earnings per common share	$	0.22	$	0.15
Diluted EPS:
Earnings allocated to common shareholders	$	8,770	$	5,726
Weighted average common shares outstanding	39,195		39,043
Dilutive effect of equity awards and warrants	103		113
Weighted average diluted common shares outstanding	39,298		39,156
Diluted earnings per common share	$	0.22	$	0.15
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive	46		54