$FIBK
FIRST INTERSTATE BANCSYSTEM INC Stock $fibk

$fibk Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000086041314000004 Filed on February 28, 2014

Income Statement

Concept	2012 Q4	2011	2010 Q4
Revenue		$292.9M
YoY Change		-6.89%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$4.300M	$17.37M	$4.900M
YoY Change	-2.27%	-13.75%	-5.77%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$42.03M
YoY Change		-33.4%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$25.80M	$66.16M	$16.00M
YoY Change	28.36%	21.52%	-6.43%
Income Tax	$8.900M	$21.62M	$5.200M
% Of Pretax Income	34.5%	32.67%	32.5%
Net Earnings	$16.80M	$44.55M	$10.80M
YoY Change	26.32%	19.25%	-6.09%
Net Earnings / Revenue		15.21%
Basic Earnings Per Share		$0.96
Diluted Earnings Per Share	$388.9K	$0.96	$253.5K
COMMON SHARES
Basic Shares Outstanding		42.75M shares
Diluted Shares Outstanding		42.85M shares

Balance Sheet

Concept	2012 Q4	2011	2010 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.005B		$2.619B
YoY Change	13.73%
Cash & Equivalents	$801.3M		$685.6M
Short-Term Investments	$2.203B		$1.933B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$187.6M	$185.0M	$188.1M
YoY Change	1.51%	-1.6%	-4.01%
Goodwill	$183.7M		$183.7M
YoY Change	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$3.000M	$10.00M	$18.00M
YoY Change	-70.0%	-44.44%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$7.722B	$7.326B	$7.501B
YoY Change	5.41%	-2.33%	5.09%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$7.000M	$8.000M	$13.00M
YoY Change	-12.5%	-38.46%	-27.78%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$506.0M	$516.0M	$625.0M
YoY Change	-1.94%	-17.44%	30.21%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$48.00M	$42.00M	$13.00M
YoY Change	14.29%	223.08%	-27.78%
LONG-TERM LIABILITIES
Long-Term Debt	$170.0M	$161.0M	$161.0M
YoY Change	5.59%	0.0%	-18.27%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$170.0M	$161.0M	$161.0M
YoY Change	5.59%	0.0%	-18.27%
TOTAL LIABILITIES
Total Short-Term Liabilities	$48.00M	$42.00M	$13.00M
Total Long-Term Liabilities	$170.0M	$161.0M	$161.0M
Total Liabilities	$6.971B	$6.555B	$6.764B
YoY Change	6.35%	-3.09%	3.07%
SHAREHOLDERS EQUITY
Retained Earnings	$463.9M		$413.3M
YoY Change	6.6%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$751.2M	$771.0M	$736.8M
YoY Change
Total Liabilities & Shareholders Equity	$7.722B	$7.326B	$7.501B
YoY Change	5.41%	-2.33%	5.09%

Cashflow Statement

Concept	2012 Q4	2011	2010 Q4
OPERATING ACTIVITIES
Net Income	$16.80M	$44.55M	$10.80M
YoY Change	26.32%	19.25%	-6.09%
Depreciation, Depletion And Amortization	$4.300M	$17.37M	$4.900M
YoY Change	-2.27%	-13.75%	-5.77%
Cash From Operating Activities	$50.90M	$143.1M	$27.30M
YoY Change	16.48%	30.98%	-360.0%
INVESTING ACTIVITIES
Capital Expenditures	-$2.400M	-$9.200M	-$200.0K
YoY Change	14.29%	15.0%	-105.13%
Acquisitions
YoY Change
Other Investing Activities	-$97.30M	-$116.8M	-$65.40M
YoY Change	23.48%	-69.22%	-30.94%
Cash From Investing Activities	-$99.80M	-$125.9M	-$65.60M
YoY Change	23.51%	-67.5%	-27.75%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$137.0K
YoY Change		-99.92%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	238.8M	-$230.3M	181.7M
YoY Change	4322.22%	-167.67%	-14.45%
NET CHANGE
Cash From Operating Activities	50.90M	$143.1M	27.30M
Cash From Investing Activities	-99.80M	-$125.9M	-65.60M
Cash From Financing Activities	238.8M	-$230.3M	181.7M
Net Change In Cash	189.9M	-$213.2M	143.4M
YoY Change	-699.05%	-443.07%	29.07%
FREE CASH FLOW
Cash From Operating Activities	$50.90M	$143.1M	$27.30M
Capital Expenditures	-$2.400M	-$9.200M	-$200.0K
Free Cash Flow	$53.30M	$152.3M	$27.50M
YoY Change	16.38%	29.89%	-290.97%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-10353000	USD
CY2012	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-11700000	USD
CY2013	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-14655000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	48208000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	47523000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	123711000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	115589000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-14578000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	17537000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	15991000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16041000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2485000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1906000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2936000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	385000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	360000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1898000	USD
CY2013	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Advertising Costs.</font><font style="font-family:inherit;font-size:10pt;"> Advertising costs are expensed as incurred. Advertising expense was </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$3,532</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$3,555</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$3,048</font><font style="font-family:inherit;font-size:10pt;"> in </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2013</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2012</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">2011</font><font style="font-family:inherit;font-size:10pt;">, respectively.</font></div></div>
CY2013	us-gaap	Advertising Expense AdvertisingExpense	3532000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	3555000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	3048000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2936000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2485000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1906000	USD
CY2012	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	8116000	USD
CY2013	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	11466000	USD
CY2011	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	5231000	USD
CY2012	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	60936000	USD
CY2013	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	20513000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	71281000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1446000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1418000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1420000	USD
CY2013	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2787000	USD
CY2012	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	3501000	USD
CY2011	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	3225000	USD
CY2013Q4	us-gaap	Assets Assets	7564651000	USD
CY2012Q4	us-gaap	Assets Assets	7721761000	USD
CY2012Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1966417000	USD
CY2013Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1971757000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	344317000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1318980000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	344180000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1092584000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	137000	USD
CY2013Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	226396000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	1971757000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	263280000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	261054000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	83839000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	82913000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	401500000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	392496000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	1223138000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	1211243000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1995258000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1947706000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	1544000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	49000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	351000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	48000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3000	USD
CY2013Q4	us-gaap	Capital Capital	829443000	USD
CY2012Q4	us-gaap	Capital Capital	748431000	USD
CY2013Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	396210000	USD
CY2012Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	384014000	USD
CY2013Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2012Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.080
CY2013Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.168
CY2012Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.156
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	472447000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	685618000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	801332000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	534827000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	328885000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-213171000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-266505000	USD
CY2012Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	177978000	USD
CY2013Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	141663000	USD
CY2013Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	534827000	USD
CY2012Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	801332000	USD
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2012Q4	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	271335000	USD
CY2013Q4	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	285535000	USD
CY2013Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	1412000	USD
CY2012Q4	us-gaap	Compensating Balance Amount CompensatingBalanceAmount	1057000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	55181000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	54104000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	54205000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30757000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	18458000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16451000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	21276000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35290000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	19210000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2759000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4533000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2818000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2131000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	10056000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	7697000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2405000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	11276000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8762000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1065000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	274000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1220000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	2597000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	12154000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	53248000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	53714000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	385000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	299000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	7041000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	6813000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	38688000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	30903000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2013Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	9473000	USD
CY2011	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	204000	USD
CY2013	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	1898000	USD
CY2012	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	360000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	41094000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	51117000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	28167000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	25815000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	700000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	782000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	4337000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	4418000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	451000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	919000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1052000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	1247000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4227000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4711000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax	-1463000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses After Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax	-1546000	USD
CY2013	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	137000	USD
CY2012	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-77000	USD
CY2011	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	135000	USD
CY2012Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	1811905000	USD
CY2013Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	1848806000	USD
CY2013Q4	us-gaap	Deposits Deposits	6133750000	USD
CY2012Q4	us-gaap	Deposits Deposits	6240411000	USD
CY2012Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1547713000	USD
CY2013Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1602544000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17368000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	16245000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17112000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26208000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19233000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17909000	USD
CY2012	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3300000	USD
CY2011	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3422000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.98
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.28
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.96
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2012	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
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	950000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1122000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	728000	USD
CY2012	us-gaap	Equipment Expense EquipmentExpense	12859000	USD
CY2011	us-gaap	Equipment Expense EquipmentExpense	12562000	USD
CY2013	us-gaap	Equipment Expense EquipmentExpense	12554000	USD
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1238000	USD
CY2011	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	USD
CY2013	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	273000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	124000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2031000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	124000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	273000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	2031000	USD
CY2012	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	6470000	USD
CY2013	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	5057000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	7333000	USD
CY2012Q4	us-gaap	Federal Funds Sold FederalFundsSold	730000	USD
CY2013Q4	us-gaap	Federal Funds Sold FederalFundsSold	672000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6687000	USD
CY2013Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7003000	USD
CY2013Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	13357000	USD
CY2012Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	13357000	USD
CY2012	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	17412000	USD
CY2013	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	16837000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	17647000	USD
CY2012	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	34226000	USD
CY2013	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	35977000	USD
CY2011	us-gaap	Fees And Commissions Other FeesAndCommissionsOther	31689000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	90214000	USD
CY2013Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	76410000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	79743000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	10297000	USD
CY2013Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	8929000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	32838000	USD
CY2012Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4087727000	USD
CY2013Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4234281000	USD
CY2011Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3955953000	USD
CY2012Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	136185000	USD
CY2013Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	110572000	USD
CY2011Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	230596000	USD
CY2011	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	137	notes
CY2012	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	38	notes
CY2013	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	43	notes
CY2012Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	76597000	USD
CY2013Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	59792000	USD
CY2013	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	notes
CY2011	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	20	notes
CY2012	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	3	notes
CY2013	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	135000	USD
CY2011	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	4322000	USD
CY2011	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2012	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2012	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1103000	USD
CY2013	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42749526	shares
CY2011	us-gaap	Gain Loss On Sale Of Debt Investments GainLossOnSaleOfDebtInvestments	1544000	USD
CY2013	us-gaap	Gain Loss On Sale Of Debt Investments GainLossOnSaleOfDebtInvestments	1000	USD
CY2012	us-gaap	Gain Loss On Sale Of Debt Investments GainLossOnSaleOfDebtInvestments	348000	USD
CY2013	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	24482000	USD
CY2011	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	14443000	USD
CY2012	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	29606000	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	217000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-28000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	424000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-428000	USD
CY2013	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	552000	USD
CY2012	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	1041000	USD
CY2013	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	3232000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	183673000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	183673000	USD
CY2012Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	208223000	USD
CY2013Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	203837000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	59140000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	29258000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	44844000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	28701000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	14296000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	557000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	87703000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	57860000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	54084000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	4244000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	54020000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	89168000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	58494000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	4190000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	205926000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	218933000	USD
CY2013	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	123376000	USD
CY2011	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	238175000	USD
CY2012	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	185281000	USD
CY2012	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	8463000	USD
CY2013	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	5786000	USD
CY2011	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	12358000	USD
CY2013	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1692000	USD
CY2012	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1631000	USD
CY2011	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	1659000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	136185000	USD
CY2013Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	110572000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	230596000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	10297000	USD
CY2013Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	8929000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	32838000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	158512000	USD
CY2013Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	124867000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	264801000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	82232000	USD
CY2013Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	62724000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	117004000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	53953000	USD
CY2013Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	47848000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	113592000	USD
CY2013	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	616000	USD
CY2012	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	70000	USD
CY2011	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2011	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	7464000	USD
CY2012	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	6724000	USD
CY2013	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	3512000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88262000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	132702000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	66161000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21615000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30038000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46566000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	30892000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	46446000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	23156000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	120000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	65000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2524000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1972000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3741000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3498000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3578000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3620000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	17540000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	16640000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	39879000	USD
CY2013Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2968000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	3579000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5913000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-602000	USD
CY2011	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-1654000	USD
CY2013	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-2419000	USD
CY2012	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-3105000	USD
CY2011	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-98742000	USD
CY2013	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-106661000	USD
CY2012	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	413440000	USD
CY2013	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1539000	USD
CY2012	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1621000	USD
CY2011	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-5055000	USD
CY2013	us-gaap	Increase Decrease In Mortgage Loans Held For Sale IncreaseDecreaseInMortgageLoansHeldForSale	1557288000	USD
CY2012	us-gaap	Increase Decrease In Mortgage Loans Held For Sale IncreaseDecreaseInMortgageLoansHeldForSale	1197744000	USD
CY2011	us-gaap	Increase Decrease In Mortgage Loans Held For Sale IncreaseDecreaseInMortgageLoansHeldForSale	897773000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4089000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3440000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-13039000	USD
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	477921	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	97670	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	126991	shares
CY2013	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	257662000	USD
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	292883000	USD
CY2012	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	273900000	USD
CY2011	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	245767000	USD
CY2013	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	220687000	USD
CY2012	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	230882000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4745102000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4642067000	USD
CY2013Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	392492000	USD
CY2012Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	622624000	USD
CY2013	us-gaap	Interest Expense InterestExpense	20695000	USD
CY2012	us-gaap	Interest Expense InterestExpense	30114000	USD
CY2011	us-gaap	Interest Expense InterestExpense	42031000	USD
CY2013	us-gaap	Interest Expense Deposits InterestExpenseDeposits	15800000	USD
CY2012	us-gaap	Interest Expense Deposits InterestExpenseDeposits	22306000	USD
CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	33533000	USD
CY2012	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	5117000	USD
CY2013	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2506000	USD
CY2011	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	5828000	USD
CY2011	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1975000	USD
CY2013	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1936000	USD
CY2012	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1981000	USD
CY2012	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	579000	USD
CY2011	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	695000	USD
CY2013	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	294000	USD
CY2011	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	10377000	USD
CY2013	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	4880000	USD
CY2012	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	6951000	USD
CY2012	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	1235000	USD
CY2011	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	1050000	USD
CY2013	us-gaap	Interest Income Domestic Deposits InterestIncomeDomesticDeposits	992000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	192701000	USD
CY2012	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	203036000	USD
CY2013	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	243092000	USD
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	250852000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	236967000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	243786000	USD
CY2012	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	13000	USD
CY2011	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	13000	USD
CY2013	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	18000	USD
CY2012	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	4923000	USD
CY2013	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	4728000	USD
CY2011	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	4749000	USD
CY2011	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	41304000	USD
CY2012	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	36847000	USD
CY2013	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	31237000	USD
CY2011	us-gaap	Interest Paid InterestPaid	47086000	USD
CY2012	us-gaap	Interest Paid InterestPaid	31735000	USD
CY2013	us-gaap	Interest Paid InterestPaid	22234000	USD
CY2012Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	6502000	USD
CY2013Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	4963000	USD
CY2013Q4	us-gaap	Interest Receivable InterestReceivable	26450000	USD
CY2012Q4	us-gaap	Interest Receivable InterestReceivable	28869000	USD
CY2011	us-gaap	Investment Advisory Management And Administrative Fees InvestmentAdvisoryManagementAndAdministrativeFees	13575000	USD
CY2013	us-gaap	Investment Advisory Management And Administrative Fees InvestmentAdvisoryManagementAndAdministrativeFees	17085000	USD
CY2012	us-gaap	Investment Advisory Management And Administrative Fees InvestmentAdvisoryManagementAndAdministrativeFees	14314000	USD
CY2013Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	82477000	USD
CY2012Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	82477000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	89833000	USD
CY2013	us-gaap	Labor And Related Expense LaborAndRelatedExpense	94002000	USD
CY2011	us-gaap	Labor And Related Expense LaborAndRelatedExpense	83560000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	2030000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1403000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1423000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	6763070000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	6970575000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7564651000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7721761000	USD
CY2012Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	76729000	USD
CY2013Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	122175000	USD
CY2012	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1849000	USD
CY2011	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1824000	USD
CY2013	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	446000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	85339000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	49000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	35077000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	71000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	65000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	285000	USD
CY2012Q4	us-gaap	Marketable Securities MarketableSecurities	2203481000	USD
CY2013Q4	us-gaap	Marketable Securities MarketableSecurities	2151543000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	100511000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	112581000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	120480000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4344853000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4223912000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4123401000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4259514000	USD
CY2013Q4	us-gaap	Loans Held For Sale Mortgages LoansHeldForSaleMortgages	40861000	USD
CY2012Q4	us-gaap	Loans Held For Sale Mortgages LoansHeldForSaleMortgages	66442000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	36917000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	37160000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1370000	USD
CY2013	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-99000	USD
CY2011	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	1275000	USD
CY2012	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-771000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-211793000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	334142000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-230333000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-204937000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-141079000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-125939000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	150225000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	143101000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	135822000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	44546000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	86136000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	58224000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	54924000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	41124000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	86136000	USD
CY2012Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1495309000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1491683000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	218412000	USD
CY2013	us-gaap	Noninterest Expense NoninterestExpense	222069000	USD
CY2012	us-gaap	Noninterest Expense NoninterestExpense	229635000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	91872000	USD
CY2013	us-gaap	Noninterest Income NoninterestIncome	111679000	USD
CY2012	us-gaap	Noninterest Income NoninterestIncome	114861000	USD
CY2012	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6771000	USD
CY2013	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7525000	USD
CY2011	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6264000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	16223000	USD
CY2013	us-gaap	Occupancy Net OccupancyNet	16587000	USD
CY2012	us-gaap	Occupancy Net OccupancyNet	15786000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	12395000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3161000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	586000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	910000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1345000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2733000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	3660000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	62953000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	61056000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-5017000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-52813000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	16148000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3043000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9659000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-32032000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-32032000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3043000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	9659000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	77000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-135000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-137000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	47000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-81000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-83000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	348000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1544000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	211000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	924000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	137000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	620000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	6489000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-1974000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-20781000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-4648000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-52949000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	17168000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2819000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	10269000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-32114000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1829000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6899000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-20835000	USD
CY2013	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	30338000	USD
CY2012	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	29345000	USD
CY2011	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	27792000	USD
CY2013Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	36917000	USD
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	37160000	USD
CY2013	us-gaap	Other Noninterest Expense OtherNoninterestExpense	43332000	USD
CY2012	us-gaap	Other Noninterest Expense OtherNoninterestExpense	48922000	USD
CY2011	us-gaap	Other Noninterest Expense OtherNoninterestExpense	43735000	USD
CY2013Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	3000	USD
CY2012Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	32000	USD
CY2013	us-gaap	Payments For Proceeds From Mortgage Servicing Rights PaymentsForProceedsFromMortgageServicingRights	-470000	USD
CY2012	us-gaap	Payments For Proceeds From Mortgage Servicing Rights PaymentsForProceedsFromMortgageServicingRights	-907000	USD
CY2011	us-gaap	Payments For Proceeds From Mortgage Servicing Rights PaymentsForProceedsFromMortgageServicingRights	-596000	USD
CY2011	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-90548000	USD
CY2013	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	178580000	USD
CY2012	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	128919000	USD
CY2013	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	5653000	USD
CY2011	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	9172000	USD
CY2012	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	14420000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	448000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	263000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	248000	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2013	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	50000000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17909000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19233000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3422000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	26208000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	3300000	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1246068000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	741579000	USD
CY2011	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	1166364000	USD
CY2013	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2012	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	900000	USD
CY2011	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2012	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	68305000	USD
CY2011	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	18846000	USD
CY2013	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	16370000	USD
CY2012	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2011	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2013	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	45000000	USD
CY2013Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	1278663000	USD
CY2012Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtFairValue	1344220000	USD
CY2012	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3300000	USD
CY2013	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2011	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3422000	USD
CY2013Q4	us-gaap	Preferred Stock Including Additional Paid In Capital PreferredStockIncludingAdditionalPaidInCapital	0	USD
CY2012Q4	us-gaap	Preferred Stock Including Additional Paid In Capital PreferredStockIncludingAdditionalPaidInCapital	0	USD
CY2012Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2013Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	5000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	5000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1911000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	9814000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	385000	USD
CY2013	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-48348000	USD
CY2011	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-103911000	USD
CY2012	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-10458000	USD
CY2011	us-gaap	Proceeds From Recoveries Of Loan Previously Charged Off ProceedsFromRecoveriesOfLoanPreviouslyChargedOff	5231000	USD
CY2013	us-gaap	Proceeds From Recoveries Of Loan Previously Charged Off ProceedsFromRecoveriesOfLoanPreviouslyChargedOff	11466000	USD
CY2012	us-gaap	Proceeds From Recoveries Of Loan Previously Charged Off ProceedsFromRecoveriesOfLoanPreviouslyChargedOff	8116000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	25000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-29000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-4984000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	943490000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	722447000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	1252266000	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	12682000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	12192000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	19465000	USD
CY2013	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1603770000	USD
CY2012	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	43541000	USD
CY2013	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	11545000	USD
CY2011	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	902239000	USD
CY2012	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1209866000	USD
CY2011	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	15896000	USD
CY2013	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	28397000	USD
CY2012	us-gaap	Proceeds From Sale Of Wholly Owned Real Estate And Real Estate Acquired In Settlement Of Loans ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans	42814000	USD
CY2013	us-gaap	Professional Fees ProfessionalFees	4773000	USD
CY2011	us-gaap	Professional Fees ProfessionalFees	3676000	USD
CY2012	us-gaap	Professional Fees ProfessionalFees	4044000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	303154000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	303401000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	179690000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	187565000	USD
CY2012	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	40750000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	58151000	USD
CY2013	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-6125000	USD
CY2012Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	32571000	USD
CY2013Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	15504000	USD
CY2011Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	37452000	USD
CY2010Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	33632000	USD
CY2011	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	26644000	USD
CY2012	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	40000	USD
CY2013	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	243000	USD
CY2011	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	302000	USD
CY2012	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	41238000	USD
CY2013	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2011	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	463860000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	532087000	USD
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	3.78
CY2013Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	457437000	USD
CY2012Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	505785000	USD
CY2013Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	13546000	USD
CY2012Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	12653000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	2936000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	2111000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	2485000	USD
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1789687	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	17.67
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	107277	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	26911	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	450633	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2523593	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3373655	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.60
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.20
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.42
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	18.70
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	15.74
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	17.37
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y2M16D
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	733906	shares
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	617214	shares
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	26911	shares
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	3.82
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	4.20
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y11M23D
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	307030	shares
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	4.28
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1166507	shares
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	205000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	299000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	543000	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures	0	USD
CY2011	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2012	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2013	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	216000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1612000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	9271000	USD
CY2012	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	-50000000	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	263000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-248000	USD
CY2013	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	448000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	751186000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	801581000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	771020000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	736802000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.149
CY2012Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.136
CY2013Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	51818000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	85051000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	790643000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	82334000	USD
CY2013Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	180871000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	3691000	USD
CY2013Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	739246000	USD
CY2012Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	652929000	USD
CY2013Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	293414000	USD
CY2012Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	296559000	USD
CY2013Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2012Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.040
CY2013Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.101
CY2012Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.088
CY2013Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	739246000	USD
CY2012Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	652929000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	198105000	USD
CY2012Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	192007000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2012Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2013Q4	us-gaap	Time Deposits TimeDeposits	1190717000	USD
CY2012Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	594712000	USD
CY2013Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	492051000	USD
CY2012Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	790772000	USD
CY2013Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	698666000	USD
CY2013	us-gaap	Transfer Of Investments TransferOfInvestments	429000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates.</font><font style="font-family:inherit;font-size:10pt;"> The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and income and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to change relate to the determination of the allowance for loan losses and the valuation of goodwill.</font></div></div>
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	44044602.000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	43092978.000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42847196.000	shares
CY2012Q4	fibk	Core Deposit Intangibles Net CoreDepositIntangiblesNet	5937000	USD
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42965987	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	43566681	shares
CY2012Q4	fibk	Available For Sale And Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions AvailableForSaleAndHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	69	securities
CY2013Q4	fibk	Available For Sale And Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions AvailableForSaleAndHeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	229	securities
CY2012Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss1	-1000	USD
CY2013Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss1	-9769000	USD
CY2012Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss1	-1690000	USD
CY2013Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss1	-37397000	USD
CY2012Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss1	-1689000	USD
CY2013Q4	fibk	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss1 AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss1	-27628000	USD
CY2012Q4	fibk	Available For Sale Securities Gross Unrealized Gain1 AvailableForSaleSecuritiesGrossUnrealizedGain1	30531000	USD
CY2013Q4	fibk	Available For Sale Securities Gross Unrealized Gain1 AvailableForSaleSecuritiesGrossUnrealizedGain1	13346000	USD
CY2012Q4	fibk	Available For Sale Securities Gross Unrealized Loss1 AvailableForSaleSecuritiesGrossUnrealizedLoss1	-1690000	USD
CY2013Q4	fibk	Available For Sale Securities Gross Unrealized Loss1 AvailableForSaleSecuritiesGrossUnrealizedLoss1	-37397000	USD
CY2013	fibk	Company Sponsored Wholly Owned Business Trusts Number CompanySponsoredWhollyOwnedBusinessTrustsNumber	6
CY2013Q4	fibk	Contractual Maturities Time Deposits100000 Or More Next Twelve Months ContractualMaturitiesTimeDeposits100000OrMoreNextTwelveMonths	325162000	USD
CY2013Q4	fibk	Contractual Maturities Time Deposits100000 Or More Year Five ContractualMaturitiesTimeDeposits100000OrMoreYearFive	19241000	USD
CY2013Q4	fibk	Contractual Maturities Time Deposits100000 Or More Year Four ContractualMaturitiesTimeDeposits100000OrMoreYearFour	35652000	USD
CY2013Q4	fibk	Contractual Maturities Time Deposits100000 Or More Year Three ContractualMaturitiesTimeDeposits100000OrMoreYearThree	34928000	USD
CY2013Q4	fibk	Contractual Maturities Time Deposits100000 Or More Year Two ContractualMaturitiesTimeDeposits100000OrMoreYearTwo	77068000	USD
CY2013Q4	fibk	Core Deposit Intangibles Net CoreDepositIntangiblesNet	4519000	USD
CY2013Q4	fibk	Credit Extension Commitments CreditExtensionCommitments	1238269000	USD
CY2012Q4	fibk	Credit Extension Commitments CreditExtensionCommitments	1144695000	USD
CY2012Q4	fibk	Credit Extension Commitments Beyond One Year CreditExtensionCommitmentsBeyondOneYear	253130000	USD
CY2013Q4	fibk	Credit Extension Commitments Beyond One Year CreditExtensionCommitmentsBeyondOneYear	304789000	USD
CY2013	fibk	Deferred Compensation Arrangement With Individual Required Service Hours DeferredCompensationArrangementWithIndividualRequiredServiceHours	PT20H
CY2013Q4	fibk	Deferred Tax Assets Deferred Gain Sale Of Subsidiary DeferredTaxAssetsDeferredGainSaleOfSubsidiary	484000	USD
CY2012Q4	fibk	Deferred Tax Assets Deferred Gain Sale Of Subsidiary DeferredTaxAssetsDeferredGainSaleOfSubsidiary	750000	USD
CY2013Q4	fibk	Deferred Tax Assets Other Real Estate Owned Write Downs And Carrying Costs DeferredTaxAssetsOtherRealEstateOwnedWriteDownsAndCarryingCosts	4731000	USD
CY2012Q4	fibk	Deferred Tax Assets Other Real Estate Owned Write Downs And Carrying Costs DeferredTaxAssetsOtherRealEstateOwnedWriteDownsAndCarryingCosts	6850000	USD
CY2012Q4	fibk	Deferred Tax Liabilities Agency Stock Dividends DeferredTaxLiabilitiesAgencyStockDividends	2060000	USD
CY2013Q4	fibk	Deferred Tax Liabilities Agency Stock Dividends DeferredTaxLiabilitiesAgencyStockDividends	1965000	USD
CY2013Q4	fibk	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	0	USD
CY2012Q4	fibk	Deferred Tax Liabilities Unrealized Gains On Available For Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableForSaleSecurities	11360000	USD
CY2012Q4	fibk	Deferredrevenueoncontract Deferredrevenueoncontract	0	USD
CY2013Q4	fibk	Deferredrevenueoncontract Deferredrevenueoncontract	545000	USD
CY2013Q4	fibk	Federal Reserve Bank Unrestricted Cash Held Carrying Value FederalReserveBankUnrestrictedCashHeldCarryingValue	392413000	USD
CY2012Q4	fibk	Federal Reserve Bank Unrestricted Cash Held Carrying Value FederalReserveBankUnrestrictedCashHeldCarryingValue	622152000	USD
CY2011	fibk	Financing Receivable Modifications Pre Modification Recorded Investment Restructured During Period FinancingReceivableModificationsPreModificationRecordedInvestmentRestructuredDuringPeriod	85143000	USD
CY2012	fibk	Financing Receivable Modifications Pre Modification Recorded Investment Restructured During Period FinancingReceivableModificationsPreModificationRecordedInvestmentRestructuredDuringPeriod	22760000	USD
CY2013	fibk	Financing Receivable Modifications Pre Modification Recorded Investment Restructured During Period FinancingReceivableModificationsPreModificationRecordedInvestmentRestructuredDuringPeriod	28403000	USD
CY2013Q4	fibk	Financing Receivable Modifications Recorded Investment Accrual Method FinancingReceivableModificationsRecordedInvestmentAccrualMethod	21781000	USD
CY2012Q4	fibk	Financing Receivable Modifications Recorded Investment Accrual Method FinancingReceivableModificationsRecordedInvestmentAccrualMethod	31932000	USD
CY2012Q4	fibk	Financing Receivable Modifications Recorded Investment Non Accrual FinancingReceivableModificationsRecordedInvestmentNonAccrual	44665000	USD
CY2013Q4	fibk	Financing Receivable Modifications Recorded Investment Non Accrual FinancingReceivableModificationsRecordedInvestmentNonAccrual	38011000	USD
CY2011	fibk	Financing Receivable Recorded Investment Nonaccrual Status Interest Income If Accrued FinancingReceivableRecordedInvestmentNonaccrualStatusInterestIncomeIfAccrued	12508000	USD
CY2013	fibk	Financing Receivable Recorded Investment Nonaccrual Status Interest Income If Accrued FinancingReceivableRecordedInvestmentNonaccrualStatusInterestIncomeIfAccrued	4630000	USD
CY2012	fibk	Financing Receivable Recorded Investment Nonaccrual Status Interest Income If Accrued FinancingReceivableRecordedInvestmentNonaccrualStatusInterestIncomeIfAccrued	8537000	USD
CY2013	fibk	Gain Loss On Sale Of Mortgage Servicing GainLossOnSaleOfMortgageServicing	0	USD
CY2012	fibk	Gain Loss On Sale Of Mortgage Servicing GainLossOnSaleOfMortgageServicing	19000	USD
CY2011	fibk	Gain Loss On Sale Of Mortgage Servicing GainLossOnSaleOfMortgageServicing	0	USD
CY2013Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss1	-730000	USD
CY2012Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss1	-8000	USD
CY2013Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1	-2057000	USD
CY2012Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1	-189000	USD
CY2013Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss1	-1327000	USD
CY2012Q4	fibk	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Loss1 HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss1	-181000	USD
CY2012Q4	fibk	Held To Maturity Securities Gross Unrealized Gain1 HeldToMaturitySecuritiesGrossUnrealizedGain1	10899000	USD
CY2013Q4	fibk	Held To Maturity Securities Gross Unrealized Gain1 HeldToMaturitySecuritiesGrossUnrealizedGain1	4146000	USD
CY2012Q4	fibk	Held To Maturity Securities Gross Unrealized Loss1 HeldToMaturitySecuritiesGrossUnrealizedLoss1	-189000	USD
CY2013Q4	fibk	Held To Maturity Securities Gross Unrealized Loss1 HeldToMaturitySecuritiesGrossUnrealizedLoss1	-2057000	USD
CY2013	fibk	Impairment Of Real Estate Change In Appraised Value ImpairmentOfRealEstateChangeInAppraisedValue	1083000	USD
CY2012	fibk	Impairment Of Real Estate Change In Appraised Value ImpairmentOfRealEstateChangeInAppraisedValue	702000	USD
CY2011	fibk	Impairment Of Real Estate Change In Appraised Value ImpairmentOfRealEstateChangeInAppraisedValue	4197000	USD
CY2013	fibk	Impairment Of Real Estate Change In Management Estimates ImpairmentOfRealEstateChangeInManagementEstimates	2429000	USD
CY2011	fibk	Impairment Of Real Estate Change In Management Estimates ImpairmentOfRealEstateChangeInManagementEstimates	3267000	USD
CY2012	fibk	Impairment Of Real Estate Change In Management Estimates ImpairmentOfRealEstateChangeInManagementEstimates	6022000	USD
CY2012	fibk	Income From Origination And Sale Of Loans IncomeFromOriginationAndSaleOfLoans	41790000	USD
CY2011	fibk	Income From Origination And Sale Of Loans IncomeFromOriginationAndSaleOfLoans	21153000	USD
CY2013	fibk	Income From Origination And Sale Of Loans IncomeFromOriginationAndSaleOfLoans	34254000	USD
CY2013	fibk	Interest Expense Preferred Stock Pending Redemption InterestExpensePreferredStockPendingRedemption	159000	USD
CY2011	fibk	Interest Expense Preferred Stock Pending Redemption InterestExpensePreferredStockPendingRedemption	0	USD
CY2012	fibk	Interest Expense Preferred Stock Pending Redemption InterestExpensePreferredStockPendingRedemption	131000	USD
CY2013Q4	fibk	Loans And Leases Receivable Held For Investment LoansAndLeasesReceivableHeldForInvestment	4303992000	USD
CY2012Q4	fibk	Loans And Leases Receivable Held For Investment LoansAndLeasesReceivableHeldForInvestment	4157470000	USD
CY2012Q4	fibk	Loans And Leases Receivable Held For Investment Evaluated For Impairment LoansAndLeasesReceivableHeldForInvestmentEvaluatedForImpairment	4223912000	USD
CY2013Q4	fibk	Loans And Leases Receivable Held For Investment Evaluated For Impairment LoansAndLeasesReceivableHeldForInvestmentEvaluatedForImpairment	4344853000	USD
CY2011Q4	fibk	Loans And Leases Receivable Held For Investment Evaluated For Impairment LoansAndLeasesReceivableHeldForInvestmentEvaluatedForImpairment	4186549000	USD
CY2011	fibk	Nonvested Liability Awards Vesting NonvestedLiabilityAwardsVesting	204000	USD
CY2012	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentBeforeTax	56000	USD
CY2011	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentBeforeTax	389000	USD
CY2013	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentBeforeTax	0	USD
CY2012	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentNetOfTax	34000	USD
CY2011	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentNetOfTax	233000	USD
CY2013	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumAdjustmentNetOfTax	0	USD
CY2012	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Tax Expense Benefit OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumTaxExpenseBenefit	22000	USD
CY2011	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Tax Expense Benefit OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumTaxExpenseBenefit	156000	USD
CY2013	fibk	Other Comprehensive Income Loss Available For Sale Securities Transferred To Held To Maturity Unamortized Premium Tax Expense Benefit OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTransferredToHeldToMaturityUnamortizedPremiumTaxExpenseBenefit	0	USD
CY2012	fibk	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentTax	-30000	USD
CY2011	fibk	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentTax	54000	USD
CY2013	fibk	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentTax	54000	USD
CY2012	fibk	Other Comprehensive Income Loss Unamortized Premium On Available For Sale Securities Transferred To Held To Maturity OtherComprehensiveIncomeLossUnamortizedPremiumOnAvailableForSaleSecuritiesTransferredToHeldToMaturity	56000	USD
CY2011	fibk	Other Comprehensive Income Loss Unamortized Premium On Available For Sale Securities Transferred To Held To Maturity OtherComprehensiveIncomeLossUnamortizedPremiumOnAvailableForSaleSecuritiesTransferredToHeldToMaturity	389000	USD
CY2013	fibk	Other Comprehensive Income Loss Unamortized Premium On Available For Sale Securities Transferred To Held To Maturity OtherComprehensiveIncomeLossUnamortizedPremiumOnAvailableForSaleSecuritiesTransferredToHeldToMaturity	0	USD
CY2013	fibk	Other Real Estate Owned Expense Net Of Income OtherRealEstateOwnedExpenseNetOfIncome	2291000	USD
CY2012	fibk	Other Real Estate Owned Expense Net Of Income OtherRealEstateOwnedExpenseNetOfIncome	9400000	USD
CY2011	fibk	Other Real Estate Owned Expense Net Of Income OtherRealEstateOwnedExpenseNetOfIncome	8652000	USD
CY2012	fibk	Outsourced Technology Services OutsourcedTechnologyServices	8826000	USD
CY2013	fibk	Outsourced Technology Services OutsourcedTechnologyServices	9029000	USD
CY2011	fibk	Outsourced Technology Services OutsourcedTechnologyServices	8933000	USD
CY2012Q4	fibk	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Cost PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtCost	1318807000	USD
CY2013Q4	fibk	Pledged Assets Separately Reported Securities Pledged For Repurchase Agreements At Cost PledgedAssetsSeparatelyReportedSecuritiesPledgedForRepurchaseAgreementsAtCost	1288750000	USD
CY2012Q4	fibk	Preferred Stock Pending Redemption PreferredStockPendingRedemption	50000000	USD
CY2013Q4	fibk	Preferred Stock Pending Redemption PreferredStockPendingRedemption	0	USD
CY2012	fibk	Real Estate Acquired Through Foreclosure Disposals RealEstateAcquiredThroughForeclosureDisposals	41773000	USD
CY2011	fibk	Real Estate Acquired Through Foreclosure Disposals RealEstateAcquiredThroughForeclosureDisposals	15374000	USD
CY2013	fibk	Real Estate Acquired Through Foreclosure Disposals RealEstateAcquiredThroughForeclosureDisposals	25165000	USD
CY2013	fibk	Real Estate Acquired Through Foreclosure Improvements RealEstateAcquiredThroughForeclosureImprovements	65000	USD
CY2012	fibk	Real Estate Acquired Through Foreclosure Improvements RealEstateAcquiredThroughForeclosureImprovements	75000	USD
CY2011	fibk	Real Estate Acquired Through Foreclosure Improvements RealEstateAcquiredThroughForeclosureImprovements	14000	USD
CY2013	fibk	Transfer Of Premises And Equipment Pending Disposalto Other Assets Book Value TransferOfPremisesAndEquipmentPendingDisposaltoOtherAssetsBookValue	1448000	USD
CY2011	fibk	Transfer Of Accrued Liabilities To Common Stock TransferOfAccruedLiabilitiesToCommonStock	216000	USD
CY2012	fibk	Transfer Of Portfolio Loans To Mortgage Servicing Assets TransferOfPortfolioLoansToMortgageServicingAssets	4563000	USD
CY2011	fibk	Transfer Of Portfolio Loans To Mortgage Servicing Assets TransferOfPortfolioLoansToMortgageServicingAssets	2864000	USD
CY2013	fibk	Transfer Of Portfolio Loans To Mortgage Servicing Assets TransferOfPortfolioLoansToMortgageServicingAssets	3581000	USD
CY2012	fibk	Transfer Of Preferred Stock Pending Redemption From Equity To Liability TransferOfPreferredStockPendingRedemptionFromEquityToLiability	50000000	USD
CY2013	fibk	Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Granted Number Of Shares ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedGrantedNumberOfShares	450633	shares
CY2013	fibk	Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedGrantsInPeriodWeightedAverageGrantDateFairValue	3.54
CY2013Q4	fibk	Time Deposits Obtained Certificate Of Deposit Account Registry Service TimeDepositsObtainedCertificateOfDepositAccountRegistryService	51526000	USD
CY2012Q4	fibk	Time Deposits Obtained Certificate Of Deposit Account Registry Service TimeDepositsObtainedCertificateOfDepositAccountRegistryService	72062000	USD
CY2012	fibk	Transfer Of Premises And Equipment Pending Disposalto Other Assets Book Value TransferOfPremisesAndEquipmentPendingDisposaltoOtherAssetsBookValue	566000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000860413
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	421597249	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	FIRST INTERSTATE BANCSYSTEM INC
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No

Files In Submission

Name	View Source	Status
0000860413-14-000004-index-headers.html	Edgar Link	pending
0000860413-14-000004-index.html	Edgar Link	pending
0000860413-14-000004.txt	Edgar Link	pending
0000860413-14-000004-xbrl.zip	Edgar Link	pending
fibk-20131231.xml	Edgar Link	completed
fibk-20131231.xsd	Edgar Link	pending
fibk-20131231x10k.htm	Edgar Link	pending
fibk-20131231xex108.htm	Edgar Link	pending
fibk-20131231xex109.htm	Edgar Link	pending
fibk-20131231xex211.htm	Edgar Link	pending
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fibk-20131231xex32.htm	Edgar Link	pending
fibk-20131231_cal.xml	Edgar Link	unprocessable
fibk-20131231_def.xml	Edgar Link	unprocessable
fibk-20131231_lab.xml	Edgar Link	unprocessable
fibk-20131231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
performancegraph12312013.jpg	Edgar Link	pending
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report.css	Edgar Link	pending
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$FIBK
FIRST INTERSTATE BANCSYSTEM INC Stock $fibk

2012 Q4 Form 10-K Financial Statement

#000086041314000004 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FIBK FIRST INTERSTATE BANCSYSTEM INC Stock $fibk

2012 Q4 Form 10-K Financial Statement

#000086041314000004 Filed on February 28, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FIBK
FIRST INTERSTATE BANCSYSTEM INC Stock $fibk