$COLB
COLUMBIA BANKING SYSTEM, INC. Stock $colb

$colb Overview Financials Valuation SEC Filings Company Website

2011 Q3 Form 10-K Financial Statement

#000088734312000013 Filed on February 29, 2012

Income Statement

Concept	2011 Q3	2011 Q2	2011 Q1
Revenue	$68.43M	$53.31M	$54.61M
YoY Change	31.41%	15.52%	23.31%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$2.195M	$1.913M	$1.924M
YoY Change	-11.38%
% of Gross Profit
Depreciation & Amortization	$6.700M	$24.70M	$3.800M
YoY Change	67.5%	671.88%	31.03%
% of Gross Profit
Operating Expenses	$2.195M	$1.913M	$1.924M
YoY Change	-11.38%
Operating Profit
YoY Change
Interest Expense	$3.644M	$3.934M	$4.162M
YoY Change	-28.69%	-27.36%	-30.78%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$26.12M	$11.30M	$8.106M
YoY Change	184.64%	97.45%	3.26%
Income Tax	$7.244M	$2.670M	$2.327M
% Of Pretax Income	27.74%	23.62%	28.71%
Net Earnings	$18.87M	$8.632M	$5.779M
YoY Change	262.64%	70.73%	-27.0%
Net Earnings / Revenue	27.58%	16.19%	10.58%
Basic Earnings Per Share	$0.48	$0.22	$0.15
Diluted Earnings Per Share	$0.48	$0.22	$0.15
COMMON SHARES
Basic Shares Outstanding	39.13M shares	39.11M shares	39.04M shares
Diluted Shares Outstanding	39.19M shares	39.17M shares	39.16M shares

Balance Sheet

Concept	2011 Q3	2011 Q2	2011 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$347.5M	$269.5M	$476.3M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$105.0M	$99.00M	$94.00M
YoY Change	66.63%	62.3%	51.61%
Goodwill	$118.4M	$118.4M	$109.6M
YoY Change	8.02%	8.02%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$4.756B	$4.429B	$4.264B
YoY Change	12.03%	3.26%	3.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$25.00M	$25.00M	$25.00M
YoY Change	-7.41%	0.0%	0.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$25.00M	$25.00M	$25.00M
YoY Change	-7.41%	0.0%	0.0%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$26.00M	$26.00M
YoY Change	-100.0%	0.0%	0.0%
Other Long-Term Liabilities	$63.00M	$55.00M	$48.00M
YoY Change	1.61%	5.77%	2.13%
Total Long-Term Liabilities	$63.00M	$81.00M	$74.00M
YoY Change	-28.41%	3.85%	1.37%
TOTAL LIABILITIES
Total Short-Term Liabilities	$25.00M	$25.00M	$25.00M
Total Long-Term Liabilities	$63.00M	$81.00M	$74.00M
Total Liabilities	$4.006B	$3.701B	$3.550B
YoY Change	13.13%	5.32%	-1.25%
SHAREHOLDERS EQUITY
Retained Earnings	$145.5M
YoY Change
Common Stock	$578.8M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$750.0M	$727.7M	$714.1M
YoY Change
Total Liabilities & Shareholders Equity	$4.756B	$4.429B	$4.264B
YoY Change	12.03%	3.26%	3.14%

Cashflow Statement

Concept	2011 Q3	2011 Q2	2011 Q1
OPERATING ACTIVITIES
Net Income	$18.87M	$8.632M	$5.779M
YoY Change	262.64%	70.73%	-27.0%
Depreciation, Depletion And Amortization	$6.700M	$24.70M	$3.800M
YoY Change	67.5%	671.88%	31.03%
Cash From Operating Activities	$27.70M	$22.80M	$19.66M
YoY Change	-36.03%	132.65%	-30.77%
INVESTING ACTIVITIES
Capital Expenditures	-$8.400M	-$200.0K	$2.461M
YoY Change	265.22%	-84.62%	-920.33%
Acquisitions
YoY Change
Other Investing Activities	$195.3M	-$76.50M	-$58.80M
YoY Change	265.05%	-289.83%	-122.34%
Cash From Investing Activities	$186.9M	-$76.70M	-$61.53M
YoY Change	264.33%	-296.67%	-123.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$32.00K
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-136.5M	-153.1M	$4.071M
YoY Change	108.4%	-207.97%	-101.4%
NET CHANGE
Cash From Operating Activities	27.70M	22.80M	$19.66M
Cash From Investing Activities	186.9M	-76.70M	-$61.53M
Cash From Financing Activities	-136.5M	-153.1M	$4.071M
Net Change In Cash	78.10M	-207.0M	-$37.80M
YoY Change	168.38%	-208.6%	-3007.85%
FREE CASH FLOW
Cash From Operating Activities	$27.70M	$22.80M	$19.66M
Capital Expenditures	-$8.400M	-$200.0K	$2.461M
Free Cash Flow	$36.10M	$23.00M	$17.20M
YoY Change	-20.83%	107.21%	-40.07%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	19.45
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	38774000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	42809000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	12281000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	25133000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	25000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-220000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-146000	USD
CY2011	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Advertising</font></div><div style="line-height:120%;padding-top:12px;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;"></font><font style="font-family:inherit;font-size:10pt;">Advertising costs are generally expensed as incurred. </font></div></div>
CY2009	us-gaap	Advertising Expense AdvertisingExpense	1943000	USD
CY2010	us-gaap	Advertising Expense AdvertisingExpense	3081000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	3686000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4319000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3922000	USD
CY2009	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1045000	USD
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	754000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	54000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	53000	shares
CY2010Q4	us-gaap	Assets Assets	4256363000	USD
CY2011Q4	us-gaap	Assets Assets	4785945000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1028110000	USD
CY2010Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	763866000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	987560000	USD
CY2010Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	743928000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	244811000	USD
CY2010Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	167907000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	242695000	USD
CY2010Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	163559000	USD
CY2010Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	4348000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	2116000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	204470000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	212605000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	52418000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	54635000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	709066000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	738930000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	984264000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	18310000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	18610000	USD
CY2011Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1024780000	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	1028110000	USD
CY2010Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	763866000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	58000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	1077000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	134000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	384000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1100000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	206000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	10000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	148000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	250000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	2088000	USD
CY2010Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	3448000	USD
CY2010Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	458532000	USD
CY2011Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	420243000	USD
CY2010Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	318000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses1	65000	USD
CY2010Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses1	3448000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses1	2088000	USD
CY2010Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	3130000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses1 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses1	2023000	USD
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CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	42638000	USD
CY2010	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2041000	USD
CY2009	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2023000	USD
CY2011	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2188000	USD
CY2011	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	1830000	USD
CY2010	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	9818000	USD
CY2009	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
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CY2010Q4	us-gaap	Capital Capital	623526000	USD
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CY2010Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	203871000	USD
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CY2009	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
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CY2011	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	247792000	USD
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CY2011Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue
CY2010Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	63033000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	63033000	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	39338000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	39506000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39506000	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39338000	shares
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	576905000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	579136000	USD
CY2011	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	8484000	USD
CY2009	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	5482000	USD
CY2010	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	8769000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	60889000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	31249000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2459000	USD
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CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	21688000	USD
CY2011Q4	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	234000	USD
CY2004Q3	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	1300000	USD
CY2010Q4	us-gaap	Deferred Gain On Sale Of Property DeferredGainOnSaleOfProperty	317000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15838000	USD
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CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3783000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	36850000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	33567000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1577000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1853000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1890000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	632000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	2318000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	0	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	6185000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	6564000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1295000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	989000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	310000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	222000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	0	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1041000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	20910000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	22942000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	34997000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	35144000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1214000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1517000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1517000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	646000	USD
CY2010	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	-78000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5700000	USD
CY2009	us-gaap	Depreciation And Amortization DepreciationAndAmortization	4700000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	14291000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	7186000	USD
CY2011Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability	0	USD
CY2010Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiability	0	USD
CY2011	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	329000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	11237000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	10363000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	9947000	USD
CY2011	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	442000	USD
CY2010	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	434000	USD
CY2011	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	987000	USD
CY2010	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	928000	USD
CY2010Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable DepositLiabilitiesReclassifiedAsLoansReceivable	409000	USD
CY2011Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable DepositLiabilitiesReclassifiedAsLoansReceivable	10100000	USD
CY2010Q4	us-gaap	Deposits Deposits	3327269000	USD
CY2011Q4	us-gaap	Deposits Deposits	3815529000	USD
CY2010Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	920831000	USD
CY2011Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1031664000	USD
CY2011Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	283416000	USD
CY2010Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	210995000	USD
CY2009	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	7540000	USD
CY2011	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	46121000	USD
CY2010	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	11352000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5200000	USD
CY2010	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1461000	USD
CY2009	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1374000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	10660000	USD
CY2010	us-gaap	Dividends Preferred Stock DividendsPreferredStock	2350000	USD
CY2009	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3845000	USD
CY2010Q1	us-gaap	Dividends Preferred Stock Stock DividendsPreferredStockStock	1107000	USD
CY2010	us-gaap	Dividends Preferred Stock Stock DividendsPreferredStockStock	4947000	USD
CY2010Q3	us-gaap	Dividends Preferred Stock Stock DividendsPreferredStockStock	2730000	USD
CY2010Q2	us-gaap	Dividends Preferred Stock Stock DividendsPreferredStockStock	1110000	USD
CY2010Q4	us-gaap	Dividends Preferred Stock Stock DividendsPreferredStockStock	0	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.38
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.22
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.06
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.38
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.21
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.06
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.69
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.07
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.27
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.00
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.02
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.03
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.05
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.02
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.01
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.11
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.24
CY2011	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition	2.5	years
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	25000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	98000	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.06
CY2011Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	5000000	USD
CY2009	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5777000	USD
CY2010	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6485000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	4337000	USD
CY2011	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	120419000	USD
CY2010	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	123685000	USD
CY2009	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Balance Of Agreements Outstanding FederalHomeLoanBankAdvancesActivityForYearAverageBalanceOfAgreementsOutstanding	111211000	USD
CY2009Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0249
CY2010Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0281
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate At Period End FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateAtPeriodEnd	0.0281
CY2010	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0275
CY2009	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0238
CY2011	us-gaap	Federal Home Loan Bank Advances Activity For Year Average Interest Rate For Year FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear	0.0276
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	127426000	USD
CY2009Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	178000000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	154916000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged	523051000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Collateral Pledged FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged	539454000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	419115000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	402048000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	119009000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	119405000	USD
CY2009Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	100000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate	0.0422
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRate	119009000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate One To Five Years FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRateOneToFiveYears	103694000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate Under One Year FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRateUnderOneYear	8000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	22215000	USD
CY2011	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7385000	USD
CY2009	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7321000	USD
CY2010	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	7502000	USD
CY2010Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	17908000	USD
CY2010	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	24698000	USD
CY2009	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	15181000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	26632000	USD
CY2010Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20166000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	18696000	USD
CY2009	us-gaap	Gain From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness GainFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectiveness	2570000	USD
CY2010	us-gaap	Gain From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness GainFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectiveness	1759000	USD
CY2011	us-gaap	Gain From Components Excluded From Assessment Of Cash Flow Hedge Effectiveness GainFromComponentsExcludedFromAssessmentOfCashFlowHedgeEffectiveness	222000	USD
CY2010	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	0	USD
CY2009	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	49000	USD
CY2011	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	0	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-79000	USD
CY2009	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	94000	USD
CY2010	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	33000	USD
CY2010	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	5253000	USD
CY2011	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	9310000	USD
CY2009	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-183000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	109639000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	115554000	USD
CY2008Q4	us-gaap	Goodwill Goodwill	95519000	USD
CY2009Q4	us-gaap	Goodwill Goodwill	95519000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	5915000	USD
CY2009	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2010	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	14120000	USD
CY2011	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	6307000	USD
CY2009	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	119000	USD
CY2010	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	5144000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-12946000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	65942000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	33075000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	8106000	USD
CY2010Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	5724000	USD
CY2010Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	9175000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	26116000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	11302000	USD
CY2010Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	7850000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	20418000	USD
CY2010Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	10326000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17905000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8978000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2291000	USD
CY2010Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2282000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7244000	USD
CY2010Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3971000	USD
CY2011Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2327000	USD
CY2010Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	668000	USD
CY2010Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-66000	USD
CY2011Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5664000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2670000	USD
CY2009	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	-8978000	USD
CY2011	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	17905000	USD
CY2010	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	2291000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	11576000	USD
CY2009	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-4531000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	23080000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1385000	USD
CY2009	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	20000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1059000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	808000	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	687000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	608000	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3072000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3744000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3824000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	23025000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	6895000	USD
CY2009	us-gaap	Income Taxes Paid IncomeTaxesPaid	500000	USD
CY2009	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	100554000	USD
CY2010	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-302758000	USD
CY2011	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-204586000	USD
CY2011	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	1243000	USD
CY2010	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-4472000	USD
CY2009	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-1311000	USD
CY2009	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-2327000	USD
CY2010	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-784000	USD
CY2011	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-403000	USD
CY2011	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	1394000	USD
CY2009	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-1964000	USD
CY2010	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	754000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	21560000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-18419000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	19248000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	13110000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-6717000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	7816000	USD
CY2009	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	143035000	USD
CY2010	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	185879000	USD
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	251271000	USD
CY2010Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	44287000	USD
CY2010Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	46148000	USD
CY2010Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	43369000	USD
CY2011Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	74919000	USD
CY2011Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	54611000	USD
CY2010Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	52075000	USD
CY2011Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	68432000	USD
CY2011Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53309000	USD
CY2011	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	218420000	USD
CY2010	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	157292000	USD
CY2009	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	117062000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2658919000	USD
CY2010Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2431598000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	202925000	USD
CY2010Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	458638000	USD
CY2010Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	672307000	USD
CY2011Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	735340000	USD
CY2009	us-gaap	Interest Expense InterestExpense	27683000	USD
CY2011	us-gaap	Interest Expense InterestExpense	14535000	USD
CY2010	us-gaap	Interest Expense InterestExpense	21092000	USD
CY2011Q1	us-gaap	Interest Expense InterestExpense	4162000	USD
CY2010Q1	us-gaap	Interest Expense InterestExpense	6013000	USD
CY2010Q2	us-gaap	Interest Expense InterestExpense	5416000	USD
CY2011Q2	us-gaap	Interest Expense InterestExpense	3934000	USD
CY2011Q4	us-gaap	Interest Expense InterestExpense	2795000	USD
CY2010Q3	us-gaap	Interest Expense InterestExpense	5110000	USD
CY2010Q4	us-gaap	Interest Expense InterestExpense	4553000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	3644000	USD
CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	10478000	USD
CY2010	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16733000	USD
CY2009	us-gaap	Interest Expense Deposits InterestExpenseDeposits	23250000	USD
CY2009	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	2759000	USD
CY2010	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	2841000	USD
CY2011	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm	2980000	USD
CY2009	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1197000	USD
CY2010	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1029000	USD
CY2011	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	579000	USD
CY2011	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	498000	USD
CY2010	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	489000	USD
CY2009	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	477000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	230984000	USD
CY2010	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	117441000	USD
CY2009	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	51852000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	236736000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	164787000	USD
CY2009	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	115352000	USD
CY2011Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	64788000	USD
CY2010Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38816000	USD
CY2011Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49375000	USD
CY2010Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	40732000	USD
CY2010Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46965000	USD
CY2010Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	38274000	USD
CY2011Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	72124000	USD
CY2011Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	50449000	USD
CY2011	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	10142000	USD
CY2009	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	8458000	USD
CY2010	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	9348000	USD
CY2011	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	21870000	USD
CY2009	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	17300000	USD
CY2010	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	18276000	USD
CY2009	us-gaap	Interest Paid Net InterestPaidNet	30010000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	14938000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	21876000	USD
CY2011	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	143000	USD
CY2011Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	0	USD
CY2010Q4	us-gaap	Interest Receivable InterestReceivable	11164000	USD
CY2011Q4	us-gaap	Interest Receivable InterestReceivable	15287000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	53500000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2371822000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2827259000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	81552000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	69780000	USD
CY2009	us-gaap	Labor And Related Expense LaborAndRelatedExpense	47275000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	3549485000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	4026607000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4256363000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4785945000	USD
CY2009	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	7600000	USD
CY2010	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	6400000	USD
CY2011	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	5300000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Impaired Nonperforming Nonaccrual Of Interest LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest	89200000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	9000000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	12900000	USD
CY2011	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	3700000	USD
CY2011	us-gaap	Loans And Leases Receivable Related Parties Collections LoansAndLeasesReceivableRelatedPartiesCollections	7600000	USD
CY2010Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	754000	USD
CY2011Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	2148000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	0	USD
CY2010Q4	us-gaap	Long Term Debt LongTermDebt	25735000	USD
CY2009	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8371000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25837000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-282995000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-193545000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	109760000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	69327000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	278465000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-23270000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37257000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	86424000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124136000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	-3968000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	48037000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	30784000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	12608000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	18872000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	5779000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	7916000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	14754000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	8632000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	5204000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	5056000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	48037000	USD
CY2010Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	3946000	USD
CY2010Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2474000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	18872000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	14754000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5779000	USD
CY2010Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12608000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8632000	USD
CY2010Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6809000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	47588000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	25593000	USD
CY2009	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-8410000	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	1075166000	USD
CY2009	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	0	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	485870000	USD
CY2009	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	USD
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	1210882000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	731832000	USD
CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1156610000	USD
CY2010Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	895671000	USD
CY2011Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	1156610000	USD
CY2010Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	895671000	USD
CY2010	us-gaap	Noninterest Expense NoninterestExpense	137147000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	155759000	USD
CY2009	us-gaap	Noninterest Expense NoninterestExpense	94488000	USD
CY2011Q4	us-gaap	Noninterest Expense NoninterestExpense	41314000	USD
CY2010Q4	us-gaap	Noninterest Expense NoninterestExpense	34985000	USD
CY2011Q1	us-gaap	Noninterest Expense NoninterestExpense	37346000	USD
CY2011Q2	us-gaap	Noninterest Expense NoninterestExpense	37164000	USD
CY2011Q3	us-gaap	Noninterest Expense NoninterestExpense	39935000	USD
CY2010Q1	us-gaap	Noninterest Expense NoninterestExpense	33897000	USD
CY2010Q3	us-gaap	Noninterest Expense NoninterestExpense	33520000	USD
CY2010Q2	us-gaap	Noninterest Expense NoninterestExpense	34745000	USD
CY2009	us-gaap	Noninterest Income NoninterestIncome	29690000	USD
CY2010	us-gaap	Noninterest Income NoninterestIncome	52781000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	-9283000	USD
CY2010Q3	us-gaap	Noninterest Income NoninterestIncome	5183000	USD
CY2011Q1	us-gaap	Noninterest Income NoninterestIncome	-5419000	USD
CY2010Q4	us-gaap	Noninterest Income NoninterestIncome	15888000	USD
CY2011Q3	us-gaap	Noninterest Income NoninterestIncome	2196000	USD
CY2011Q4	us-gaap	Noninterest Income NoninterestIncome	-9602000	USD
CY2010Q1	us-gaap	Noninterest Income NoninterestIncome	18473000	USD
CY2010Q2	us-gaap	Noninterest Income NoninterestIncome	13237000	USD
CY2011Q2	us-gaap	Noninterest Income NoninterestIncome	3542000	USD
CY2011	us-gaap	Noninterest Income Other NoninterestIncomeOther	4994000	USD
CY2010	us-gaap	Noninterest Income Other NoninterestIncomeOther	3756000	USD
CY2009	us-gaap	Noninterest Income Other NoninterestIncomeOther	4039000	USD
CY2009	us-gaap	Occupancy Net OccupancyNet	12128000	USD
CY2010	us-gaap	Occupancy Net OccupancyNet	16814000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	18963000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	21947000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	4077000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1604000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3046000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3615000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3927000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	5678000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4500000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4600000	USD
CY2009	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	3500000	USD
CY2009	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	602000	USD
CY2010	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	591000	USD
CY2011	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	655000	USD
CY2010Q4	us-gaap	Other Assets OtherAssets	103851000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	126928000	USD
CY2011Q4	us-gaap	Other Borrowings OtherBorrowings	0	USD
CY2010Q4	us-gaap	Other Borrowings OtherBorrowings	642000	USD
CY2010	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	27000	USD
CY2009	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	33000	USD
CY2011	us-gaap	Other Comprehensive Income Amortization Of Defined Benefit Plan Net Prior Service Cost Recognized In Net Periodic Pension Cost Net Of Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax	55000	USD
CY2011	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	13200000	USD
CY2010	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	1549000	USD
CY2009	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	8740000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-656000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-205000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	50000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-689000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-260000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	23000	USD
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-1134000	USD
CY2011	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-143000	USD
CY2009	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-1657000	USD
CY2011	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Effect Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxEffectPeriodIncreaseDecrease	79000	USD
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Effect Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxEffectPeriodIncreaseDecrease	625000	USD
CY2009	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Effect Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxEffectPeriodIncreaseDecrease	913000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	-31000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	-15000	USD
CY2009	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Pension Cost Tax Effect OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostTaxEffect	-18000	USD
CY2009	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	6427000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	12852000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	465000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	465000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12852000	USD
CY2009	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6427000	USD
CY2011	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	85000	USD
CY2009	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	695000	USD
CY2010	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	38000	USD
CY2009	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	383000	USD
CY2011	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	48000	USD
CY2010	us-gaap	Other Comprehensive Income Reclassification Adjustment For Sale Of Securities Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax	20000	USD
CY2011	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	143000	USD
CY2009	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	1657000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1587000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	7462000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	5197000	USD
CY2010	us-gaap	Other Comprehensive Income Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	1134000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	13285000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	9435000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1047000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	453043000	USD
CY2009	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6281000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	67069000	USD
CY2010Q4	us-gaap	Other Liabilities OtherLiabilities	51434000	USD
CY2010	us-gaap	Other Noninterest Expense OtherNoninterestExpense	14603000	USD
CY2009	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10179000	USD
CY2011	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17154000	USD
CY2010	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	2950000	USD
CY2009	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2011	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	735000	USD
CY2010	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	1720000	USD
CY2009	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	1165000	USD
CY2010	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	36276000	USD
CY2009	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	374000000	USD
CY2011	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	42989000	USD
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	32000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1461000	USD
CY2009	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1374000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	10660000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2010	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	2841000	USD
CY2009	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3781000	USD
CY2010	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	179332000	USD
CY2009	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	162412000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	36503000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	15088000	USD
CY2009	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	0	USD
CY2010	us-gaap	Preferred Stock Accretion Of Redemption Discount PreferredStockAccretionOfRedemptionDiscount	0	USD
CY2011	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2009	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4403000	USD
CY2010	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4947000	USD
CY2011	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	774000	USD
CY2010	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	0	USD
CY2009	us-gaap	Proceeds From Divestiture Of Interest In Subsidiaries And Affiliates ProceedsFromDivestitureOfInterestInSubsidiariesAndAffiliates	0	USD
CY2011	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	100000	USD
CY2010	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
CY2009	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	324000000	USD
CY2010	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2009	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	415000000	USD
CY2011	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	100000	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	113537000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	-642000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	229129000	USD
CY2011	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	46000	USD
CY2009	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	42000	USD
CY2010Q2	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	229100000	USD
CY2010	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	902000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	848000	USD
CY2009	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	939000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	923000	USD
CY2010	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	642000	USD
CY2009	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2010	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections	-164084000	USD
CY2009	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections	-146698000	USD
CY2011	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections	110577000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	148583000	USD
CY2009	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	67682000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	92840000	USD
CY2011	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	0	USD
CY2010	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-86000	USD
CY2009	us-gaap	Proceeds From Repayments Of Other Debt ProceedsFromRepaymentsOfOtherDebt	-115000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	72523000	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	69328000	USD
CY2009	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	16665000	USD
CY2011	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	12278000	USD
CY2009	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8098000	USD
CY2010	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	4800000	USD
CY2009	us-gaap	Professional Fees ProfessionalFees	3871000	USD
CY2011	us-gaap	Professional Fees ProfessionalFees	6486000	USD
CY2010	us-gaap	Professional Fees ProfessionalFees	5684000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	131882000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	150708000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	93108000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	107899000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5752000	USD
CY2010	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	47346000	USD
CY2009	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	63500000	USD
CY2011Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	51019000	USD
CY2010Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	45434000	USD
CY2011	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	100000	USD
CY2009	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	465000000	USD
CY2010	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	USD
CY2010	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2011	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	25774000	USD
CY2009	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	9.92
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	117692000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	155069000	USD
CY2011Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	25000000	USD
CY2010Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	25000000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	1635000	USD
CY2009	us-gaap	Share Based Compensation ShareBasedCompensation	1038000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	1424000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	19150	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	7775	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	14925	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue	20.77
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue	24.03
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue	18.86
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	108075	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	122097	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	133350	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	278504	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.68
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	353283	shares
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	191320	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	22.76
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	362675	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	21.34
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	29.41
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	19.24
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	21.14
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	15763	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	25521	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	109033	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	404000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	2200000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	546000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	25.72
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	21.38
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	27.67
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	2891482	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	64912	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	1.4	years
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	65000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	123000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	154000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	13.50
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	7350	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	17.25
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	9576	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.96
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	52000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	93964	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	64912	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.26
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.76
CY2011Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	64912	shares
CY2011Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	64912	shares
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	52000	USD
CY2011Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm1	1.4	years
CY2010	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	35806	shares
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	1.4	years
CY2011Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	22.76
CY2011Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	22.76
CY2011	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	39989	shares
CY2009	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	55443	shares
CY2010Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	11040000	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	12126	shares
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	614000	USD
CY2009	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	578000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	690000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	229129000	USD
CY2009	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	113537000	USD
CY2010Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	240100000	USD
CY2009	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1038000	USD
CY2010	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1424000	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1635000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	848000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	923000	USD
CY2009	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1085000	USD
CY2010	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	80200000	USD
CY2011Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	2000000	shares
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	32000	USD
CY2011	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	759338000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	706878000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	528139000	USD
CY2008Q4	us-gaap	Stockholders Equity StockholdersEquity	415385000	USD
CY2010Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	591263000	USD
CY2011Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	598485000	USD
CY2010Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	169062000	USD
CY2011Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	184780000	USD
CY2010Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2011Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2011Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1296
CY2010Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1399
CY2011Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	598485000	USD
CY2010Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	591263000	USD
CY2011Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	120978000	USD
CY2010Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	101936000	USD
CY2011Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2010Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2011Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1979
CY2010Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.2320
CY2011Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	327000	USD
CY2011Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	7777000	USD
CY2011Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	13042000	USD
CY2011Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	233819000	USD
CY2011Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	37918000	USD
CY2011Q4	us-gaap	Time Deposits TimeDeposits	302995000	USD
CY2011Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	10112000	USD
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21854000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35209000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	39103000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	39180000	shares
CY2010Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	266708000	USD
CY2011Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	262731000	USD
CY2010Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	298678000	USD
CY2011Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	303405000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0	USD
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	183000	shares
CY2009	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	77000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	35392000	shares
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21854000	shares
CY2009	colb	Allowance For Loan And Lease Losses Net Changes In Unfunded Commitments And Letters Of Credit Allowance AllowanceForLoanAndLeaseLossesNetChangesInUnfundedCommitmentsAndLettersOfCreditAllowance	275000	USD
CY2010	colb	Allowance For Loan And Lease Losses Net Changes In Unfunded Commitments And Letters Of Credit Allowance AllowanceForLoanAndLeaseLossesNetChangesInUnfundedCommitmentsAndLettersOfCreditAllowance	390000	USD
CY2011	colb	Allowance For Loan And Lease Losses Net Changes In Unfunded Commitments And Letters Of Credit Allowance AllowanceForLoanAndLeaseLossesNetChangesInUnfundedCommitmentsAndLettersOfCreditAllowance	370000	USD
CY2010Q4	colb	Allowance For Unfunded Loan Commitments And Letters Of Credit AllowanceForUnfundedLoanCommitmentsAndLettersOfCredit	1165000	USD
CY2009Q4	colb	Allowance For Unfunded Loan Commitments And Letters Of Credit AllowanceForUnfundedLoanCommitmentsAndLettersOfCredit	775000	USD
CY2011Q4	colb	Allowance For Unfunded Loan Commitments And Letters Of Credit AllowanceForUnfundedLoanCommitmentsAndLettersOfCredit	1535000	USD
CY2008Q4	colb	Allowance For Unfunded Loan Commitments And Letters Of Credit AllowanceForUnfundedLoanCommitmentsAndLettersOfCredit	500000	USD
CY2011Q4	colb	Amount Of Estimated Clawback Liability AmountOfEstimatedClawbackLiability	3700000	USD
CY2010Q4	colb	Amount Of Estimated Clawback Liability AmountOfEstimatedClawbackLiability	0	USD
CY2010	colb	Basic Earnings Allocated To Common Shareholders BasicEarningsAllocatedToCommonShareholders	25593000	USD
CY2011	colb	Basic Earnings Allocated To Common Shareholders BasicEarningsAllocatedToCommonShareholders	47587000	USD
CY2009	colb	Basic Earnings Allocated To Common Shareholders BasicEarningsAllocatedToCommonShareholders	-8387000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Acquired Loans BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans	-1700000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Acquired Loans BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAcquiredLoans	-369000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Fdic Indemnification Asset BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentFdicIndemnificationAsset	3000000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Fdic Indemnification Asset BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentFdicIndemnificationAsset	427000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Loans Covered By Loss Sharing BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLoansCoveredByLossSharing	-61000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Loans Covered By Loss Sharing BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLoansCoveredByLossSharing	-509000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Other Assets BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets	1000000	USD
	colb	Business Combination Provisional Information Initial Accounting Incomplete Adjustment Other Assets BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherAssets	1900000	USD
CY2010Q4	colb	Certificates Of Deposit Insured By Cdars CertificatesOfDepositInsuredByCdars	38312000	USD
CY2011Q4	colb	Certificates Of Deposit Insured By Cdars CertificatesOfDepositInsuredByCdars	42080000	USD
CY2009	colb	Change In Federal Deposit Insurance Corporation Loss Sharing Asset ChangeInFederalDepositInsuranceCorporationLossSharingAsset	0	USD
CY2010	colb	Change In Federal Deposit Insurance Corporation Loss Sharing Asset ChangeInFederalDepositInsuranceCorporationLossSharingAsset	4908000	USD
CY2011	colb	Change In Federal Deposit Insurance Corporation Loss Sharing Asset ChangeInFederalDepositInsuranceCorporationLossSharingAsset	-49496000	USD
CY2011	colb	Clawback Percentage Of Calculated Excess Amount ClawbackPercentageOfCalculatedExcessAmount	0.5
CY2011Q4	colb	Core And Other Deposits CoreAndOtherDeposits	3815246000	USD
CY2010Q4	colb	Core And Other Deposits CoreAndOtherDeposits	3326657000	USD
CY2010Q4	colb	Core Deposits CoreDeposits	2998482000	USD
CY2011Q4	colb	Core Deposits CoreDeposits	3510435000	USD
CY2010Q4	colb	Deferred Tax Asset Other Real Estate Owned Costs DeferredTaxAssetOtherRealEstateOwnedCosts	1910000	USD
CY2011Q4	colb	Deferred Tax Asset Other Real Estate Owned Costs DeferredTaxAssetOtherRealEstateOwnedCosts	3209000	USD
CY2010Q4	colb	Deferred Tax Liabilities Asset Purchase Tax Basis Difference DeferredTaxLiabilitiesAssetPurchaseTaxBasisDifference	22559000	USD
CY2011Q4	colb	Deferred Tax Liabilities Asset Purchase Tax Basis Difference DeferredTaxLiabilitiesAssetPurchaseTaxBasisDifference	14812000	USD
CY2011Q4	colb	Deferred Tax Liabilities Stock Dividends DeferredTaxLiabilitiesStockDividends	1977000	USD
CY2010Q4	colb	Deferred Tax Liabilities Stock Dividends DeferredTaxLiabilitiesStockDividends	2019000	USD
CY2011Q4	colb	Deferred Tax Liability Purchase Accounting DeferredTaxLiabilityPurchaseAccounting	1030000	USD
CY2010Q4	colb	Deferred Tax Liability Purchase Accounting DeferredTaxLiabilityPurchaseAccounting	1373000	USD
CY2010	colb	Fdic Reimbursement On Loss Sharing Asset FDICReimbursementOnLossSharingAsset	0	USD
CY2010Q4	colb	Deposits Valuation Adjustment From Acquisition Accounting DepositsValuationAdjustmentFromAcquisitionAccounting	612000	USD
CY2011Q4	colb	Deposits Valuation Adjustment From Acquisition Accounting DepositsValuationAdjustmentFromAcquisitionAccounting	283000	USD
CY2011	colb	Discount On Common Stock Under Employee Stock Purchase Plan Percent DiscountOnCommonStockUnderEmployeeStockPurchasePlanPercent	0.1
CY2011	colb	Earnings Allocated To Participating Securities EarningsAllocatedToParticipatingSecurities	450000	USD
CY2010	colb	Earnings Allocated To Participating Securities EarningsAllocatedToParticipatingSecurities	244000	USD
CY2009	colb	Earnings Allocated To Participating Securities EarningsAllocatedToParticipatingSecurities	16000	USD
CY2009	colb	Effective Income Tax Rate Reconciliation Bargain Purchase EffectiveIncomeTaxRateReconciliationBargainPurchase	0.00
CY2010	colb	Effective Income Tax Rate Reconciliation Bargain Purchase EffectiveIncomeTaxRateReconciliationBargainPurchase	-0.16
CY2011	colb	Effective Income Tax Rate Reconciliation Bargain Purchase EffectiveIncomeTaxRateReconciliationBargainPurchase	-0.02
CY2010	colb	Effective Income Tax Rate Reconciliation Life Insurance Proceeds EffectiveIncomeTaxRateReconciliationLifeInsuranceProceeds	-0.02
CY2011	colb	Effective Income Tax Rate Reconciliation Life Insurance Proceeds EffectiveIncomeTaxRateReconciliationLifeInsuranceProceeds	-0.01
CY2009	colb	Effective Income Tax Rate Reconciliation Life Insurance Proceeds EffectiveIncomeTaxRateReconciliationLifeInsuranceProceeds	0.05
CY2011	colb	Fdic Clawback Liability FDICClawbackLiability	3656000	USD
CY2010	colb	Fdic Clawback Liability FDICClawbackLiability	0	USD
CY2009	colb	Fdic Clawback Liability FDICClawbackLiability	0	USD
CY2011	colb	Fdic Reimbursement On Loss Sharing Asset FDICReimbursementOnLossSharingAsset	54200000	USD
CY2009	colb	Fdic Reimbursement On Loss Sharing Asset FDICReimbursementOnLossSharingAsset	0	USD
CY2011Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Asset FederalDepositInsuranceCorporationLossSharingAsset	175071000	USD
CY2010Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Asset FederalDepositInsuranceCorporationLossSharingAsset	205991000	USD
CY2011Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Indemnified Assets FederalDepositInsuranceCorporationLossSharingIndemnifiedAssets	157500000	USD
CY2010Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Indemnified Assets FederalDepositInsuranceCorporationLossSharingIndemnifiedAssets	170700000	USD
CY2010Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Indemnified Assets Receivable FederalDepositInsuranceCorporationLossSharingIndemnifiedAssetsReceivable	35300000	USD
CY2011Q4	colb	Federal Deposit Insurance Corporation Loss Sharing Indemnified Assets Receivable FederalDepositInsuranceCorporationLossSharingIndemnifiedAssetsReceivable	17600000	USD
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Ten Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterTenYearsFromBalanceSheetDate	0.0537
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Five To Ten Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFiveToTenYearsFromBalanceSheetDate	0.0530
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToFiveYearsFromBalanceSheetDate	0.0254
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate After Ten Years FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRateAfterTenYears	5000000	USD
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate Before Valuation Adjustment FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRateBeforeValuationAdjustment	118110000	USD
CY2011Q4	colb	Federal Home Loan Bank Advances Maturities Summary By Interest Rate Type Fixed Rate Five To Ten Years FederalHomeLoanBankAdvancesMaturitiesSummaryByInterestRateTypeFixedRateFiveToTenYears	1416000	USD
CY2011Q4	colb	Federal Home Loan Bank Fixed Rate Advances Valuation Adjustment From Acquisition Accounting FederalHomeLoanBankFixedRateAdvancesValuationAdjustmentFromAcquisitionAccounting	899000	USD
CY2010Q4	colb	Federal Reserve Bank Advances Collateral Pledged FederalReserveBankAdvancesCollateralPledged	449418000	USD
CY2011Q4	colb	Federal Reserve Bank Advances Collateral Pledged FederalReserveBankAdvancesCollateralPledged	404444000	USD
CY2010Q4	colb	Federal Reserve Bank Advances Maximum Amount Available FederalReserveBankAdvancesMaximumAmountAvailable	449418000	USD
CY2011Q4	colb	Federal Reserve Bank Advances Maximum Amount Available FederalReserveBankAdvancesMaximumAmountAvailable	404444000	USD
CY2011Q4	colb	Financing Receivable Modifications Additional Commitment To Lend FinancingReceivableModificationsAdditionalCommitmentToLend	535000	USD
CY2011Q4	colb	Financing Receivable Modifications Subsequent Default Number Of Contracts FinancingReceivableModificationsSubsequentDefaultNumberOfContracts	0
CY2011Q4	colb	Loans And Leases Receivable Loans Evaluated For Impairment On Quarterly Basis Outstanding LoansAndLeasesReceivableLoansEvaluatedForImpairmentOnQuarterlyBasisOutstanding	250000	USD
CY2011Q4	colb	Loans And Leases Receivable Nonaccrual Loans Considered Impaired LoansAndLeasesReceivableNonaccrualLoansConsideredImpaired	250000	USD
CY2010Q4	colb	Loans And Leases Receivable Nonaccrual Of Interest Commitments Of Additional Funds LoansAndLeasesReceivableNonaccrualOfInterestCommitmentsOfAdditionalFunds	5600000	USD
CY2009	colb	Interest Income Federal Funds Sold And Deposits In Banks InterestIncomeFederalFundsSoldAndDepositsInBanks	215000	USD
CY2010	colb	Interest Income Federal Funds Sold And Deposits In Banks InterestIncomeFederalFundsSoldAndDepositsInBanks	963000	USD
CY2011	colb	Interest Income Federal Funds Sold And Deposits In Banks InterestIncomeFederalFundsSoldAndDepositsInBanks	839000	USD
CY2011Q4	colb	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing Number Of Loans FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruingNumberOfLoans	0
CY2010Q4	colb	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing Number Of Loans FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruingNumberOfLoans	1
CY2011Q4	colb	Goodwill And Intangible Assets Total GoodwillAndIntangibleAssetsTotal	135720000	USD
CY2010Q4	colb	Goodwill And Intangible Assets Total GoodwillAndIntangibleAssetsTotal	128335000	USD
CY2009Q4	colb	Goodwill And Intangible Assets Total GoodwillAndIntangibleAssetsTotal	100382000	USD
CY2009	colb	Income Tax Reconciliation Bargain Purchase IncomeTaxReconciliationBargainPurchase	0	USD
CY2011	colb	Income Tax Reconciliation Bargain Purchase IncomeTaxReconciliationBargainPurchase	1036000	USD
CY2010	colb	Income Tax Reconciliation Bargain Purchase IncomeTaxReconciliationBargainPurchase	5383000	USD
CY2009	colb	Income Tax Reconciliation Life Insurance Proceeds IncomeTaxReconciliationLifeInsuranceProceeds	708000	USD
CY2011	colb	Income Tax Reconciliation Life Insurance Proceeds IncomeTaxReconciliationLifeInsuranceProceeds	766000	USD
CY2010	colb	Income Tax Reconciliation Life Insurance Proceeds IncomeTaxReconciliationLifeInsuranceProceeds	735000	USD
CY2011Q4	colb	Loans And Leases Receivable Nonaccrual Of Interest Commitments Of Additional Funds LoansAndLeasesReceivableNonaccrualOfInterestCommitmentsOfAdditionalFunds	2000000	USD
CY2011	colb	Look Back Period Under Employee Stock Purchase Plan LookBackPeriodUnderEmployeeStockPurchasePlan	P6M
CY2010	colb	Merchant Processing MerchantProcessing	4364000	USD
CY2011	colb	Merchant Processing MerchantProcessing	3698000	USD
CY2009	colb	Merchant Processing MerchantProcessing	3449000	USD
CY2011	colb	Minimum Percentage Of Stated Threshold Amount Where Clawback Calculation Begins MinimumPercentageOfStatedThresholdAmountWhereClawbackCalculationBegins	0.20
CY2010	colb	Net Cost Of Operation Of Other Real Estate NetCostOfOperationOfOtherRealEstate	787000	USD
CY2011	colb	Net Cost Of Operation Of Other Real Estate NetCostOfOperationOfOtherRealEstate	-1022000	USD
CY2009	colb	Net Cost Of Operation Of Other Real Estate NetCostOfOperationOfOtherRealEstate	861000	USD
CY2011	colb	Net Unrealized Gain Loss From Unfunded Defined Benefit Plan Liability Arising During Period Tax NetUnrealizedGainLossFromUnfundedDefinedBenefitPlanLiabilityArisingDuringPeriodTax	154000	USD
CY2009	colb	Net Unrealized Gain Loss From Unfunded Defined Benefit Plan Liability Arising During Period Tax NetUnrealizedGainLossFromUnfundedDefinedBenefitPlanLiabilityArisingDuringPeriodTax	379000	USD
CY2010	colb	Net Unrealized Gain Loss From Unfunded Defined Benefit Plan Liability Arising During Period Tax NetUnrealizedGainLossFromUnfundedDefinedBenefitPlanLiabilityArisingDuringPeriodTax	-12000	USD
CY2011Q4	colb	Number Of Branch Locations NumberOfBranchLocations	102
CY2011	colb	Number Of Days Of Delinqunecy At Which Loans Are Categorized As Non Accrual Status NumberOfDaysOfDelinqunecyAtWhichLoansAreCategorizedAsNonAccrualStatus	P90D
CY2011	colb	Number Of Days Used To Determine Treatment As Cash Equivalent NumberOfDaysUsedToDetermineTreatmentAsCashEquivalent	P90D
CY2011	colb	Number Of Look Back Period Under Employee Stock Purchase Plan NumberOfLookBackPeriodUnderEmployeeStockPurchasePlan	2	period
CY2009	colb	Payment For Repurchase Of Preferred Stock And Common Stock Warrants PaymentForRepurchaseOfPreferredStockAndCommonStockWarrants	0	USD
CY2010	colb	Payment For Repurchase Of Preferred Stock And Common Stock Warrants PaymentForRepurchaseOfPreferredStockAndCommonStockWarrants	80200000	USD
CY2011	colb	Payment For Repurchase Of Preferred Stock And Common Stock Warrants PaymentForRepurchaseOfPreferredStockAndCommonStockWarrants	0	USD
CY2011	colb	Payment Of Clawback If Losses Less Than Stated Levels Period After Acquisition PaymentOfClawbackIfLossesLessThanStatedLevelsPeriodAfterAcquisition	P10Y45D
CY2011	colb	Percentage Of Asset Premium Discount Used In Clawback Calculation PercentageOfAssetPremiumDiscountUsedInClawbackCalculation	0.25
CY2009	colb	Proceeds From Sales Of Covered Other Real Estate Owned ProceedsFromSalesOfCoveredOtherRealEstateOwned	0	USD
CY2010	colb	Proceeds From Sales Of Covered Other Real Estate Owned ProceedsFromSalesOfCoveredOtherRealEstateOwned	17890000	USD
CY2011	colb	Proceeds From Sales Of Covered Other Real Estate Owned ProceedsFromSalesOfCoveredOtherRealEstateOwned	20619000	USD
CY2010Q4	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	3791000	USD
CY2011	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	7400000	USD
CY2010Q3	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	9000000	USD
CY2010Q2	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	13500000	USD
CY2011	colb	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	24357000	USD
CY2011Q3	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	500000	USD
CY2011Q1	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	0	USD
CY2011Q4	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	4750000	USD
CY2011Q2	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	2150000	USD
CY2010	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	41291000	USD
CY2010Q1	colb	Provision For Loan And Lease Losses Excluding Covered Loans ProvisionForLoanAndLeaseLossesExcludingCoveredLoans	15000000	USD
CY2010Q2	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	0	USD
CY2010Q3	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	453000	USD
CY2011Q3	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	433000	USD
CY2011Q4	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	-3960000	USD
CY2011	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	-1648000	USD
CY2010	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	6055000	USD
CY2010Q4	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	5602000	USD
CY2011Q1	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	-422000	USD
CY2011Q2	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	2301000	USD
CY2010Q1	colb	Provision For Losses On Covered Loans ProvisionForLossesOnCoveredLoans	0	USD
CY2010Q3	colb	Reduction Of Earnings Available To Common Stockholders Upon Repayment Of Preferred Stock ReductionOfEarningsAvailableToCommonStockholdersUponRepaymentOfPreferredStock	2300000	USD
CY2010	colb	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	29864000	USD
CY2011Q4	colb	Shares Available For Purchase Under Employee Stock Purchase Plan SharesAvailableForPurchaseUnderEmployeeStockPurchasePlan	647903	shares
CY2011Q4	colb	Special Dividends Payable Amount Per Share SpecialDividendsPayableAmountPerShare	0.05
CY2010Q2	colb	Stock Issued During Period New Issues Price Per Share StockIssuedDuringPeriodNewIssuesPricePerShare	21.75
CY2011Q4	colb	Stock Repurchase Program Number Of Shares Repurchased As Of Balance Sheet Date StockRepurchaseProgramNumberOfSharesRepurchasedAsOfBalanceSheetDate	64788	shares
CY2009	colb	Taxes Licenses And Fees TaxesLicensesAndFees	2478000	USD
CY2010	colb	Taxes Licenses And Fees TaxesLicensesAndFees	2858000	USD
CY2011	colb	Taxes Licenses And Fees TaxesLicensesAndFees	4446000	USD
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0000887343
CY2012Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	39522884	shares
CY2009	colb	Transfer From Loans To Foreclosed Assets TransferFromLoansToForeclosedAssets	23398000	USD
CY2010Q4	colb	Wholesale Certificates Of Deposit WholesaleCertificatesOfDeposit	23155000	USD
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-12-31
CY2011	dei	Document Type DocumentType	10-K
CY2011Q4	colb	Wholesale Certificates Of Deposit WholesaleCertificatesOfDeposit	0	USD
CY2011	colb	Writedowns Previously Recorded On Transfer In Of Real Estate Acquired Through Foreclosure WritedownsPreviouslyRecordedOnTransferInOfRealEstateAcquiredThroughForeclosure	2564000	USD
CY2010	colb	Writedowns Previously Recorded On Transfer In Of Real Estate Acquired Through Foreclosure WritedownsPreviouslyRecordedOnTransferInOfRealEstateAcquiredThroughForeclosure	2087000	USD
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011Q2	dei	Entity Public Float EntityPublicFloat	667249601	USD
CY2011	dei	Entity Registrant Name EntityRegistrantName	COLUMBIA BANKING SYSTEM INC
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0000887343-12-000013-index-headers.html	Edgar Link	pending
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$COLB
COLUMBIA BANKING SYSTEM, INC. Stock $colb

2011 Q3 Form 10-K Financial Statement

#000088734312000013 Filed on February 29, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$COLB COLUMBIA BANKING SYSTEM, INC. Stock $colb

2011 Q3 Form 10-K Financial Statement

#000088734312000013 Filed on February 29, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$COLB
COLUMBIA BANKING SYSTEM, INC. Stock $colb