$ASB
ASSOCIATED BANC-CORP Stock $asb

$asb Overview Financials Valuation SEC Filings Company Website

2012 Form 10-K Financial Statement

#000119312513062681 Filed on February 15, 2013

Income Statement

Concept	2012	2011 Q4	2011
Revenue	$939.3M		$886.0M
YoY Change	6.02%		-8.59%
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	$30.00M	$19.00M	$24.00M
YoY Change	25.0%	26.67%	9.09%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$92.29M		$128.8M
YoY Change	-28.34%		-25.27%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$254.5M	$50.00M	$183.4M
YoY Change	38.72%	777.19%	-547.08%
Income Tax	$75.49M	$8.900M	$43.73M
% Of Pretax Income	29.67%	17.8%	23.84%
Net Earnings	$179.0M	$41.10M	$139.7M
YoY Change	28.11%	193.57%	-16419.98%
Net Earnings / Revenue	19.05%		15.77%
Basic Earnings Per Share	$1.00		$0.66
Diluted Earnings Per Share	$1.00	$236.9K	$0.66
COMMON SHARES
Basic Shares Outstanding	172.3M shares	174.0M shares	173.4M shares
Diluted Shares Outstanding	172.4M shares		173.4M shares

Balance Sheet

Concept	2012	2011 Q4	2011
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$616.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$244.0M	$223.7M	$224.0M
YoY Change	8.93%	17.43%	17.28%
Goodwill		$929.2M
YoY Change		0.0%
Intangibles		$67.57M
YoY Change		-23.25%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$23.49B	$21.92B	$21.92B
YoY Change	7.13%	0.64%	0.63%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$193.0M	$196.0M	$196.0M
YoY Change	-1.53%	-18.33%	-18.33%
Deferred Revenue
YoY Change
Short-Term Debt	$2.327B	$2.514B	$2.514B
YoY Change	-7.44%	43.9%	43.9%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$193.0M	$196.0M	$196.0M
YoY Change	-1.53%	-18.33%	-18.33%
LONG-TERM LIABILITIES
Long-Term Debt	$615.0M	$677.0M	$677.0M
YoY Change	-9.16%	63.92%	63.92%
Other Long-Term Liabilities	$76.00M	$80.00M	$80.00M
YoY Change	-5.0%
Total Long-Term Liabilities	$691.0M	$757.0M	$757.0M
YoY Change	-8.72%	83.29%	83.29%
TOTAL LIABILITIES
Total Short-Term Liabilities	$193.0M	$196.0M	$196.0M
Total Long-Term Liabilities	$691.0M	$757.0M	$757.0M
Total Liabilities	$20.55B	$19.06B	$19.06B
YoY Change	7.83%	2.32%	2.31%
SHAREHOLDERS EQUITY
Retained Earnings		$1.149B
YoY Change		10.28%
Common Stock		$1.588B
YoY Change		0.83%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$0.00
YoY Change
Treasury Stock Shares		0.000 shares
Shareholders Equity	$2.936B	$2.866B	$2.866B
YoY Change
Total Liabilities & Shareholders Equity	$23.49B	$21.92B	$21.92B
YoY Change	7.13%	0.64%	0.63%

Cashflow Statement

Concept	2012	2011 Q4	2011
OPERATING ACTIVITIES
Net Income	$179.0M	$41.10M	$139.7M
YoY Change	28.11%	193.57%	-16419.98%
Depreciation, Depletion And Amortization	$30.00M	$19.00M	$24.00M
YoY Change	25.0%	26.67%	9.09%
Cash From Operating Activities	$350.5M	$67.10M	$309.8M
YoY Change	13.14%	-57.04%	-39.19%
INVESTING ACTIVITIES
Capital Expenditures	-$84.00M	-$27.30M	-$76.60M
YoY Change	9.66%	44.44%	121.39%
Acquisitions
YoY Change
Other Investing Activities	-$1.550B	-$76.60M	-$395.9M
YoY Change	291.44%	-93.21%	-160.78%
Cash From Investing Activities	-$1.634B	-$103.8M	-$472.5M
YoY Change	245.73%	-90.95%	-176.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$61.65M		$659.0K
YoY Change	9255.69%		-100.14%
Debt Paid & Issued, Net	$311.6M		$670.1M
YoY Change	-53.5%		-28.74%
Cash From Financing Activities	$1.405B	-12.10M	-$88.82M
YoY Change	-1681.36%	-98.22%	-91.77%
NET CHANGE
Cash From Operating Activities	$350.5M	67.10M	$309.8M
Cash From Investing Activities	-$1.634B	-103.8M	-$472.5M
Cash From Financing Activities	$1.405B	-12.10M	-$88.82M
Net Change In Cash	$121.3M	-48.80M	-$251.6M
YoY Change	-148.21%	-97.08%	-629.95%
FREE CASH FLOW
Cash From Operating Activities	$350.5M	$67.10M	$309.8M
Capital Expenditures	-$84.00M	-$27.30M	-$76.60M
Free Cash Flow	$434.5M	$94.40M	$386.4M
YoY Change	12.45%	-46.09%	-28.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q2	dei	Entity Public Float EntityPublicFloat	2238794000	USD
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000007789
CY2012Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	750455000	USD
CY2011Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	1000000000	USD
CY2011Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	80046000	USD
CY2011Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	454958000	USD
CY2012	us-gaap	Interest Expense InterestExpense	92292000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	ASSOCIATED BANC-CORP
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	625992000	USD
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	174591841	shares
CY2011Q4	us-gaap	Shortterm Debt Fair Value ShorttermDebtFairValue	2514485000	USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2012Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	166774000	USD
CY2012Q4	us-gaap	Loans Receivable Held For Sale Net LoansReceivableHeldForSaleNet	261410000	USD
CY2012	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	86945000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	253958000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	929168000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	929168000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	67574000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	1177071000	USD
CY2011Q4	us-gaap	Other Liabilities OtherLiabilities	196166000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	19058423000	USD
CY2011Q4	us-gaap	Preferred Stock Including Additional Paid In Capital PreferredStockIncludingAdditionalPaidInCapital	63272000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	1746000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1586401000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1148773000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	65602000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	2865794000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23487735000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	21924217000	USD
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	65000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	750000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	39877000	USD
CY2012Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	12180309000	USD
CY2012Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	1576484000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	76343000	USD
CY2011Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	11161863000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	154562000	USD
CY2011Q4	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	7075000	USD
CY2011Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	191188000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	378151000	USD
CY2011Q4	us-gaap	Derivative Assets DerivativeAssets	73253000	USD
CY2011Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1514485000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	70711000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1281811000	USD
CY2012	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	28655000	USD
CY2012	us-gaap	Interest Expense Deposits InterestExpenseDeposits	41431000	USD
CY2012	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	3294000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	15113613000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	297409000	USD
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	223736000	USD
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	167995851	shares
CY2011Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	14031071000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	13652920000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	61176000	USD
CY2012Q4	us-gaap	Other Assets OtherAssets	926417000	USD
CY2011Q4	us-gaap	Other Assets OtherAssets	983105000	USD
CY2012Q4	us-gaap	Assets Assets	23487735000	USD
CY2011Q4	us-gaap	Assets Assets	21924217000	USD
CY2012Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	4759556000	USD
CY2011Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	3928792000	USD
CY2012Q4	us-gaap	Deposits Deposits	16939865000	USD
CY2011Q4	us-gaap	Deposits Deposits	15090655000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	1015346000	USD
CY2012Q4	us-gaap	Other Liabilities OtherLiabilities	192843000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	20551336000	USD
CY2012Q4	us-gaap	Preferred Stock Including Additional Paid In Capital PreferredStockIncludingAdditionalPaidInCapital	63272000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1750000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1602136000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	48603000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	61173000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	2936399000	USD
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	750000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	175012686	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	4773146	shares
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	65000	shares
CY2011	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	6215000	USD
CY2012	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3000000	USD
CY2012	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	622992000	USD
CY2012	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	40737000	USD
CY2012	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	68917000	USD
CY2012	asbc	Card Based And Other Nondeposit Fees CardBasedAndOtherNondepositFees	47862000	USD
CY2012	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	47014000	USD
CY2012	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	63500000	USD
CY2012	asbc	Capital Market Fees Net CapitalMarketFeesNet	14241000	USD
CY2012	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	13952000	USD
CY2012	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-12096000	USD
CY2012	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	4261000	USD
CY2012	us-gaap	Impairment Of Investments ImpairmentOfInvestments	59000	USD
CY2012	asbc	Other Comprehensive Income Noncredit Portion Recognized During Period Before Tax OtherComprehensiveIncomeNoncreditPortionRecognizedDuringPeriodBeforeTax	59000	USD
CY2012	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	4261000	USD
CY2012	us-gaap	Noninterest Income NoninterestIncome	313290000	USD
CY2012	us-gaap	Labor And Related Expense LaborAndRelatedExpense	381404000	USD
CY2012	us-gaap	Occupancy Net OccupancyNet	60794000	USD
CY2012	us-gaap	Equipment Expense EquipmentExpense	23566000	USD
CY2012	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	43548000	USD
CY2012	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	21303000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4195000	USD
CY2012	asbc	Legal And Professional Fees LegalAndProfessionalFees	31232000	USD
CY2012	asbc	Losses Other Than Loans LossesOtherThanLoans	12258000	USD
CY2012	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	15069000	USD
CY2012	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	19478000	USD
CY2012	us-gaap	Other Noninterest Expense OtherNoninterestExpense	56691000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	254459000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-41028000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-19042000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	2366000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	4333000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	6000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	974000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	986000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-16999000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	161974000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	71606000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-14810000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	5674000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	8669000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-557000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	1658000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	2493000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	37976000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	177675000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-38278000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	2271000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-1106000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1632000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-4542000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	499000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	972000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-36662000	USD
CY2012Q4	asbc	Financial Instruments Available To Pledge Not Separately Reported Loans Receivable For Federal Home Loan Bank Debt FinancialInstrumentsAvailableToPledgeNotSeparatelyReportedLoansReceivableForFederalHomeLoanBankDebt	600000000	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173370000	shares
CY2012	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9259000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	75486000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	178973000	USD
CY2012	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	5200000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	173773000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.00
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	172255000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172357000	shares
CY2011	asbc	Losses Other Than Loans LossesOtherThanLoans	17921000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	43728000	USD
CY2011	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	29937000	USD
CY2011	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	12723000	USD
CY2011	us-gaap	Interest Expense Deposits InterestExpenseDeposits	65748000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	173372000	shares
CY2011	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	21393000	USD
CY2011	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	582739000	USD
CY2011	asbc	Capital Market Fees Net CapitalMarketFeesNet	8711000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	139699000	USD
CY2011	asbc	Other Comprehensive Income Noncredit Portion Recognized During Period Before Tax OtherComprehensiveIncomeNoncreditPortionRecognizedDuringPeriodBeforeTax	1533000	USD
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2011	asbc	Card Based And Other Nondeposit Fees CardBasedAndOtherNondepositFees	57905000	USD
CY2011	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	560831000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	114869000	USD
CY2011	us-gaap	Occupancy Net OccupancyNet	55939000	USD
CY2011	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	45554000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4714000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	612831000	USD
CY2011	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	32475000	USD
CY2011	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	28484000	USD
CY2011	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	39145000	USD
CY2011	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	14358000	USD
CY2011	us-gaap	Equipment Expense EquipmentExpense	19873000	USD
CY2011	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	-228000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	52000000	USD
CY2011	us-gaap	Impairment Of Investments ImpairmentOfInvestments	2417000	USD
CY2011	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-1112000	USD
CY2011	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	23038000	USD
CY2011	us-gaap	Interest Expense InterestExpense	128791000	USD
CY2011	asbc	Legal And Professional Fees LegalAndProfessionalFees	18205000	USD
CY2011	us-gaap	Noninterest Income NoninterestIncome	273119000	USD
CY2011	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	123371000	USD
CY2011	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	14896000	USD
CY2011	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-12199000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	183427000	USD
CY2011	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	75908000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2010	us-gaap	Interest Expense Deposits InterestExpenseDeposits	106023000	USD
CY2010	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	390010000	USD
CY2010	asbc	Card Based And Other Nondeposit Fees CardBasedAndOtherNondepositFees	59299000	USD
CY2010	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	787000	USD
CY2011Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1309687000	USD
CY2011	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	741622000	USD
CY2010	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	806126000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-30387000	USD
CY2010	asbc	Losses Other Than Loans LossesOtherThanLoans	14793000	USD
CY2010	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	33915000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4919000	USD
CY2010	us-gaap	Labor And Related Expense LaborAndRelatedExpense	325063000	USD
CY2010	us-gaap	Occupancy Net OccupancyNet	49937000	USD
CY2010	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	608487000	USD
CY2010	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	43829000	USD
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2010	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	29714000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-40172000	USD
CY2010	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	37853000	USD
CY2010	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	23783000	USD
CY2010	asbc	Legal And Professional Fees LegalAndProfessionalFees	20439000	USD
CY2010	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-12065000	USD
CY2010	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	46377000	USD
CY2010	us-gaap	Noninterest Income NoninterestIncome	335462000	USD
CY2010	asbc	Other Comprehensive Income Noncredit Portion Recognized During Period Before Tax OtherComprehensiveIncomeNoncreditPortionRecognizedDuringPeriodBeforeTax	2121000	USD
CY2010	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	28854000	USD
CY2010	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	33136000	USD
CY2010	us-gaap	Interest Expense InterestExpense	172347000	USD
CY2010	asbc	Capital Market Fees Net CapitalMarketFeesNet	6072000	USD
CY2010	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	633779000	USD
CY2010	us-gaap	Impairment Of Investments ImpairmentOfInvestments	6058000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	-856000	USD
CY2010	us-gaap	Other Noninterest Expense OtherNoninterestExpense	58513000	USD
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	171230000	shares
CY2010	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	155032000	USD
CY2010	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	243769000	USD
CY2010	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	15761000	USD
CY2010	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	12493000	USD
CY2010	us-gaap	Equipment Expense EquipmentExpense	18371000	USD
CY2010	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	96740000	USD
CY2010	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	24917000	USD
CY2010	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	18385000	USD
CY2012	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	718284000	USD
CY2012	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	6719000	USD
CY2011	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5575000	USD
CY2010	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	8692000	USD
CY2012	asbc	Loan Expense LoanExpense	12285000	USD
CY2011	asbc	Loan Expense LoanExpense	12008000	USD
CY2010	asbc	Loan Expense LoanExpense	9965000	USD
CY2012	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	2687000	USD
CY2011	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	6196000	USD
CY2010	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	7196000	USD
CY2010	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	17427000	USD
CY2012	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	15643000	USD
CY2011	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	17230000	USD
CY2012	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	44880000	USD
CY2011	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	50632000	USD
CY2010	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	58341000	USD
CY2012	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	11726000	USD
CY2010	us-gaap	Noninterest Expense NoninterestExpense	620259000	USD
CY2011	us-gaap	Noninterest Expense NoninterestExpense	650523000	USD
CY2012	us-gaap	Noninterest Expense NoninterestExpense	681823000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	-4261000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-242000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-6941000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	1954000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	1112000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-467000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	4708000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeBeforeTax	-24917000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Amortization Pension And Other Postretirement Benefit Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Before Tax OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax	-467000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	6013000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-35806000	USD
CY2012	asbc	Other Comprehensive Income Loss Available For Sale Securities Inclusive Of Other Than Temporary Impairment Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesInclusiveOfOtherThanTemporaryImpairmentTax	-9651000	USD
CY2012	asbc	Other Comprehensive Income Loss Available For Sale Securities Adjustment Inclusive Of Other Than Temporary Impairment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentInclusiveOfOtherThanTemporaryImpairmentNetOfTax	-13652000	USD
CY2011	asbc	Other Comprehensive Income Loss Available For Sale Securities Inclusive Of Other Than Temporary Impairment Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesInclusiveOfOtherThanTemporaryImpairmentTax	28566000	USD
CY2011	asbc	Other Comprehensive Income Loss Available For Sale Securities Adjustment Inclusive Of Other Than Temporary Impairment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentInclusiveOfOtherThanTemporaryImpairmentNetOfTax	44152000	USD
CY2010	asbc	Other Comprehensive Income Loss Available For Sale Securities Inclusive Of Other Than Temporary Impairment Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesInclusiveOfOtherThanTemporaryImpairmentTax	-24785000	USD
CY2010	asbc	Other Comprehensive Income Loss Available For Sale Securities Adjustment Inclusive Of Other Than Temporary Impairment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentInclusiveOfOtherThanTemporaryImpairmentNetOfTax	-38410000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	2738608000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	145000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	39634000	USD
CY2012	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	5200000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15759000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-785000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	61654000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3468000	USD
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	830000	USD
CY2010	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	0	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9036000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	11000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	3158791000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4231000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	659000	USD
CY2010	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6948000	USD
CY2010	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	26250000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6977000	USD
CY2011	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	14218000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	63272000	USD
CY2011	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	525000000	USD
CY2011	us-gaap	Other Preferred Stock Dividends And Adjustments OtherPreferredStockDividendsAndAdjustments	0	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11024000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	-2345000	USD
CY2010Q4	asbc	Commonstockissuedduringperiodvaluenewissue Commonstockissuedduringperiodvaluenewissue	478358000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	43611000	USD
CY2012	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	2383000	USD
CY2012	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	23348000	USD
CY2012	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-55101000	USD
CY2012	us-gaap	Tax Benefit From Stock Options Exercised1 TaxBenefitFromStockOptionsExercised1	-785000	USD
CY2012	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	60312000	USD
CY2012	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	2797431000	USD
CY2012	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	2822000000	USD
CY2012	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-534000	USD
CY2012	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-5723000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-19461000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	350484000	USD
CY2011	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1764801000	USD
CY2011	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1232000	USD
CY2011	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-5062000	USD
CY2011	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-65670000	USD
CY2011	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	31628000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	309787000	USD
CY2011	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	7403000	USD
CY2011	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	25830000	USD
CY2011	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1855037000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-53169000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	33628000	USD
CY2011	us-gaap	Tax Benefit From Stock Options Exercised1 TaxBenefitFromStockOptionsExercised1	-2345000	USD
CY2010	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	2259789000	USD
CY2010	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	2314557000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	30108000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	509422000	USD
CY2010	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-62714000	USD
CY2010	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-4051000	USD
CY2010	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-13466000	USD
CY2010	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	34967000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-38871000	USD
CY2010	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	3067000	USD
CY2010	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	22942000	USD
CY2010	us-gaap	Tax Benefit From Stock Options Exercised1 TaxBenefitFromStockOptionsExercised1	11000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	54294000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	34742000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	50808000	USD
CY2012	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1637901000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	2131026000	USD
CY2012	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	83973000	USD
CY2012	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	5968000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	299782000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1723504000	USD
CY2012	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	70920000	USD
CY2012	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	130940000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1633722000	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	777309000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	50417000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	176267000	USD
CY2011	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	136051000	USD
CY2011	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1754499000	USD
CY2011	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	3061000	USD
CY2011	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1776245000	USD
CY2011	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	76648000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-472537000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2027847000	USD
CY2010	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	34595000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	616770000	USD
CY2010	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	352589000	USD
CY2010	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-616608000	USD
CY2010	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	971662000	USD
CY2010	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	15516000	USD
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	67400000	USD
CY2010	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	3369225000	USD
CY2012Q4	asbc	Loans Receivable Net Fair Value Disclosure LoansReceivableNetFairValueDisclosure	14873851000	USD
CY2012Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	556556000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	311621000	USD
CY2012	us-gaap	Origination Of Mortgage Servicing Rights Ms Rs OriginationOfMortgageServicingRightsMSRs	23528000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	61654000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	121278000	USD
CY2012	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-187546000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	39634000	USD
CY2012	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1969055000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-9722000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1404516000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	39511000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	5200000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	154738000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	737873000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	97938000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-10839000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-251567000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	129720000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6977000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	767103000	USD
CY2011	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	63272000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	659000	USD
CY2011	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-134738000	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	525000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	432504000	USD
CY2011	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	48752000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	670104000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	868162000	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14218000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	616595000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-88817000	USD
CY2011	us-gaap	Origination Of Mortgage Servicing Rights Ms Rs OriginationOfMortgageServicingRightsMSRs	17476000	USD
CY2010	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	49427000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	400000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2010	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	26250000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	478358000	USD
CY2010	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	47470000	USD
CY2010	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-1503220000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	830000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	520529000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	820692000	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	940361000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	175776000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6948000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1078722000	USD
CY2010	us-gaap	Origination Of Mortgage Servicing Rights Ms Rs OriginationOfMortgageServicingRightsMSRs	26165000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-93723000	USD
CY2010	asbc	Change In Deposits Due To Branch Acquisition Or Sale ChangeInDepositsDueToBranchAcquisitionOrSale	0	USD
CY2011	asbc	Change In Deposits Due To Branch Acquisition Or Sale ChangeInDepositsDueToBranchAcquisitionOrSale	0	USD
CY2012	asbc	Change In Deposits Due To Branch Acquisition Or Sale ChangeInDepositsDueToBranchAcquisitionOrSale	-113622000	USD
CY2012Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	35000000	USD
CY2011Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	41000000	USD
CY2012Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4787978000	USD
CY2012Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	143700000	USD
CY2012Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	4920000	USD
CY2012Q4	us-gaap	Heldtomaturity Securities Unrecognized Holding Gain HeldtomaturitySecuritiesUnrecognizedHoldingGain	98000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Unrecognized Holding Loss HeldToMaturitySecuritiesUnrecognizedHoldingLoss	296000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	39679000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	4775400000	USD
CY2011Q4	us-gaap	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	165746000	USD
CY2011Q4	us-gaap	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	3663000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Aggregate Losses HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLosses	-296000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	4022000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	28939000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	4481000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	220000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	49605000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	215006000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	522815000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	59826000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAmortizedCost	847252000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	48477000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	223764000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	557001000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	64995000	USD
CY2012Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	894237000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	0	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	0	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	10917000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	28960000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmount	39877000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	0	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	10884000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	28795000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Debt Maturities Fair Value HeldToMaturitySecuritiesDebtMaturitiesFairValue	39679000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	1112000	USD
CY2012Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	2600000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	3300000000	USD
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	-4832000	USD
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	-88000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1000503000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	459000	USD
CY2012Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2	-4920000	USD
CY2012Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	1000962000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses	-296000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	28265000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	28265000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	0	USD
CY2012Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2012Q4	asbc	Loans Receivable Commercial Real Estate Owner Occupied LoansReceivableCommercialRealEstateOwnerOccupied	1219747000	USD
CY2012Q4	us-gaap	Leases Receivable Commercial Lease Financing LeasesReceivableCommercialLeaseFinancing	64196000	USD
CY2012Q4	asbc	Loans Receivable Commercial And Business Lending LoansReceivableCommercialAndBusinessLending	5785964000	USD
CY2012Q4	asbc	Loans Receivable Commercial Real Estate Investor LoansReceivableCommercialRealEstateInvestor	2906759000	USD
CY2012Q4	us-gaap	Loans Receivable Commercial Construction LoansReceivableCommercialConstruction	655381000	USD
CY2012Q4	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	3562140000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Commercial LoansAndLeasesReceivableCommercial	9348104000	USD
CY2012Q4	asbc	Loans And Leases Receivable Home Equity LoansAndLeasesReceivableHomeEquity	2219494000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	237411000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	176979000	USD
CY2011Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	414390000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	96000000	USD
CY2012Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	71000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	121000000	USD
CY2011Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	70000000	USD
CY2012	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	25000000	USD
CY2012Q4	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	4502021000	USD
CY2010Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	-27575000	USD
CY2011	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	-818000	USD
CY2011Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	-28393000	USD
CY2012Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	-6868000	USD
CY2012	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	21525000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2	-2133000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2	-1530000	USD
CY2011Q4	us-gaap	Availableforsale Securities Continuous Unrealized Loss Position Aggregate Losses2 AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2	-3663000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer Installment And Revolving LoansAndLeasesReceivableConsumerInstallmentAndRevolving	466727000	USD
CY2012Q4	asbc	Loans And Leases Receivable Retail LoansAndLeasesReceivableRetail	2686221000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer Mortgage LoansAndLeasesReceivableConsumerMortgage	3376697000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Consumer LoansAndLeasesReceivableConsumer	6062918000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer LoansAndLeasesReceivableConsumer	6013499000	USD
CY2011Q4	asbc	Loans And Leases Receivable Home Equity LoansAndLeasesReceivableHomeEquity	2504704000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Commercial LoansAndLeasesReceivableCommercial	8017572000	USD
CY2011Q4	asbc	Loans And Leases Receivable Retail LoansAndLeasesReceivableRetail	3062486000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial And Industrial LoansReceivableCommercialAndIndustrial	3724736000	USD
CY2011Q4	asbc	Loans Receivable Commercial And Business Lending LoansReceivableCommercialAndBusinessLending	4869759000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial Construction LoansReceivableCommercialConstruction	584046000	USD
CY2011Q4	asbc	Loans Receivable Commercial Real Estate Owner Occupied LoansReceivableCommercialRealEstateOwnerOccupied	1086829000	USD
CY2011Q4	us-gaap	Loans Receivable Commercial Real Estate LoansReceivableCommercialRealEstate	3147813000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer Installment And Revolving LoansAndLeasesReceivableConsumerInstallmentAndRevolving	557782000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Consumer Mortgage LoansAndLeasesReceivableConsumerMortgage	2951013000	USD
CY2011Q4	asbc	Loans Receivable Commercial Real Estate Investor LoansReceivableCommercialRealEstateInvestor	2563767000	USD
CY2011Q4	us-gaap	Leases Receivable Commercial Lease Financing LeasesReceivableCommercialLeaseFinancing	58194000	USD
CY2011Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	37751000	USD
CY2012	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	15010000	USD
CY2012	us-gaap	Loans And Leases Receivable Related Parties Collections LoansAndLeasesReceivableRelatedPartiesCollections	-14610000	USD
CY2012	asbc	Change Due To Status Of Officers And Directors ChangeDueToStatusOfOfficersAndDirectors	-1180000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	36971000	USD
CY2012	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Gross AllowanceForLoanAndLeaseLossesProvisionForLossGross	3000000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Gross AllowanceForLoanAndLeaseLossesProvisionForLossGross	52000000	USD
CY2010	us-gaap	Allowance For Loan And Lease Losses Provision For Loss Gross AllowanceForLoanAndLeaseLossesProvisionForLossGross	390010000	USD
CY2012	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	-117046000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	-189732000	USD
CY2010	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	-528492000	USD
CY2012	us-gaap	Allowance For Loan And Lease Losses Recoveries Of Bad Debts AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts	33304000	USD
CY2011	us-gaap	Allowance For Loan And Lease Losses Recoveries Of Bad Debts AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts	39070000	USD
CY2010	us-gaap	Allowance For Loan And Lease Losses Recoveries Of Bad Debts AllowanceForLoanAndLeaseLossesRecoveriesOfBadDebts	41762000	USD
CY2012	asbc	Allowance For Loan And Lease Losses Net Charge Offs AllowanceForLoanAndLeaseLossesNetChargeOffs	-83742000	USD
CY2011	asbc	Allowance For Loan And Lease Losses Net Charge Offs AllowanceForLoanAndLeaseLossesNetChargeOffs	-150662000	USD
CY2010	asbc	Allowance For Loan And Lease Losses Net Charge Offs AllowanceForLoanAndLeaseLossesNetChargeOffs	-486730000	USD
CY2010Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	476813000	USD
CY2009Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	573533000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	16787000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	52504000	USD
CY2012Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	228118000	USD
CY2012Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	132528000	USD
CY2012Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	241427000	USD
CY2012Q4	us-gaap	Notes Receivable Net NotesReceivableNet	15037067000	USD
CY2011Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	254458000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	67970000	USD
CY2011Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	215478000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	273372000	USD
CY2011Q4	us-gaap	Notes Receivable Net NotesReceivableNet	13561135000	USD
CY2011Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	36809000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	63973000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	26720000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue	134445000	USD
CY2012	asbc	Interest Income Recognized On Accruing Restructured Loans InterestIncomeRecognizedOnAccruingRestructuredLoans	6000000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	469936000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	573912000	USD
CY2011Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	104779000	USD
CY2011	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	522649000	USD
CY2011	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	13414000	USD
CY2011	asbc	Interest Income Recognized On Accruing Restructured Loans InterestIncomeRecognizedOnAccruingRestructuredLoans	6000000	USD
CY2010	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	702000000	USD
CY2010	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	16000000	USD
CY2012Q4	asbc	Restructured Loans Subsequently Accruing RestructuredLoansSubsequentlyAccruing	28000000	USD
CY2012Q4	asbc	Ytd Restructured Loans Still On Nonaccrual YtdRestructuredLoansStillOnNonaccrual	32000000	USD
CY2012Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	8000000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	225138000	USD
CY2012Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	15185884000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment30 To59 Days Past Due FinancingReceivableRecordedInvestment30To59DaysPastDue	46612000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment60 To89 Days Past Due FinancingReceivableRecordedInvestment60To89DaysPastDue	29844000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Equal To Greater Than90 Days Past Due FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue	175181000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	251637000	USD
CY2011Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	13779434000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	373955000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	455097000	USD
CY2012Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	69291000	USD
CY2012	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	399793000	USD
CY2012Q4	asbc	Performing Restructured Loans PerformingRestructuredLoans	121087000	USD
CY2012Q4	asbc	Nonaccrual Restructured Loans NonaccrualRestructuredLoans	80590000	USD
CY2011Q4	asbc	Nonaccrual Restructured Loans NonaccrualRestructuredLoans	87493000	USD
CY2011Q4	asbc	Performing Restructured Loans PerformingRestructuredLoans	113164000	USD
CY2012	asbc	Financing Receivable Modification Number Of Contracts FinancingReceivableModificationNumberOfContracts	413	pure
CY2012	asbc	Financing Receivable Modification Recorded Investment FinancingReceivableModificationRecordedInvestment	59599000	USD
CY2012	asbc	Financing Receivable Modification Pre Modification Recorded Investment1 FinancingReceivableModificationPreModificationRecordedInvestment1	68950000	USD
CY2011	asbc	Financing Receivable Modification Number Of Contracts FinancingReceivableModificationNumberOfContracts	336	pure
CY2011	asbc	Financing Receivable Modification Recorded Investment FinancingReceivableModificationRecordedInvestment	120806000	USD
CY2011	asbc	Financing Receivable Modification Pre Modification Recorded Investment1 FinancingReceivableModificationPreModificationRecordedInvestment1	149082000	USD
CY2012	asbc	Financing Receivable Subsequent Default Number Of Contracts FinancingReceivableSubsequentDefaultNumberOfContracts	69	pure
CY2012	asbc	Financing Receivable Subsequent Default Recorded Investment FinancingReceivableSubsequentDefaultRecordedInvestment	22574000	USD
CY2011	asbc	Financing Receivable Subsequent Default Recorded Investment FinancingReceivableSubsequentDefaultRecordedInvestment	20522000	USD
CY2011	asbc	Financing Receivable Subsequent Default Number Of Contracts FinancingReceivableSubsequentDefaultNumberOfContracts	81	pure
CY2012	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	23528000	USD
CY2012	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	-23348000	USD
CY2012	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-2383000	USD
CY2012Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	-15476000	USD
CY2012Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	45949000	USD
CY2012Q4	asbc	Portfolio Of Residential Mortgage Loans Serviced For Others PortfolioOfResidentialMortgageLoansServicedForOthers	7453000000	USD
CY2012Q4	asbc	Mortgage Servicing Rights Net To Servicing Portfolio MortgageServicingRightsNetToServicingPortfolio	0.0062	pure
CY2012Q4	asbc	Mortgage Servicing Rights Expense MortgageServicingRightsExpense	25731000	USD
CY2011Q4	asbc	Portfolio Of Residential Mortgage Loans Serviced For Others PortfolioOfResidentialMortgageLoansServicedForOthers	7321000000	USD
CY2011Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	48152000	USD
CY2011Q4	asbc	Mortgage Servicing Rights Net To Servicing Portfolio MortgageServicingRightsNetToServicingPortfolio	0.0066	pure
CY2011	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	-25830000	USD
CY2011Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	-27703000	USD
CY2011	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-7403000	USD
CY2011	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	17476000	USD
CY2011Q4	asbc	Mortgage Servicing Rights Expense MortgageServicingRightsExpense	33233000	USD
CY2010Q4	asbc	Portfolio Of Residential Mortgage Loans Serviced For Others PortfolioOfResidentialMortgageLoansServicedForOthers	7453000000	USD
CY2010Q4	us-gaap	Servicing Asset At Amortized Value Fair Value ServicingAssetAtAmortizedValueFairValue	64378000	USD
CY2010Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	-20300000	USD
CY2010	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Provisions Recoveries ValuationAllowanceForImpairmentOfRecognizedServicingAssetsProvisionsRecoveries	-3067000	USD
CY2010Q4	asbc	Mortgage Servicing Rights Net To Servicing Portfolio MortgageServicingRightsNetToServicingPortfolio	0.0086	pure
CY2010	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	-22942000	USD
CY2010	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	26165000	USD
CY2010Q4	asbc	Mortgage Servicing Rights Expense MortgageServicingRightsExpense	26009000	USD
CY2009Q4	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Balance ValuationAllowanceForImpairmentOfRecognizedServicingAssetsBalance	-17233000	USD
CY2011	us-gaap	Servicing Asset At Amortized Value Other Than Temporary Impairments ServicingAssetAtAmortizedValueOtherThanTemporaryImpairments	0	USD
CY2010	us-gaap	Servicing Asset At Amortized Value Other Than Temporary Impairments ServicingAssetAtAmortizedValueOtherThanTemporaryImpairments	0	USD
CY2010	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	0	USD
CY2012	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	14610000	USD
CY2012Q4	asbc	Bank Owned Life Insurance Fair Value Disclosure BankOwnedLifeInsuranceFairValueDisclosure	556556000	USD
CY2011	us-gaap	Valuation Allowance For Impairment Of Recognized Servicing Assets Aggregate Write Downs ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns	0	USD
CY2012	us-gaap	Servicing Asset At Amortized Value Other Than Temporary Impairments ServicingAssetAtAmortizedValueOtherThanTemporaryImpairments	-14610000	USD
CY2011Q4	asbc	Servicing Asset At Amortized Value Net ServicingAssetAtAmortizedValueNet	48152000	USD
CY2012Q4	asbc	Servicing Asset At Amortized Value Net ServicingAssetAtAmortizedValueNet	45949000	USD
CY2010Q4	asbc	Servicing Asset At Amortized Value Net ServicingAssetAtAmortizedValueNet	63909000	USD
CY2009Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	80986000	USD
CY2010Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	84209000	USD
CY2011Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	75855000	USD
CY2012Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	61425000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	523333000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	269375000	USD
CY2011	us-gaap	Depreciation Depreciation	24000000	USD
CY2010	us-gaap	Depreciation Depreciation	22000000	USD
CY2012	us-gaap	Depreciation Depreciation	30000000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	12192000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	11198000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	11041000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	11068000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	9615000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	42441000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	97555000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	15000000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	15000000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	13000000	USD
CY2012	asbc	Deposits By Type Tabletext Block DepositsByTypeTabletextBlock	<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 90px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:90px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">2012</font></td><td colspan="2" style="width: 90px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:90px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">2011</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="4" style="width: 180px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:180px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">($ in Thousands)</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Noninterest-bearing demand deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 4,759,556</font></td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 3,928,792</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Savings deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 1,109,861</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 986,766</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Interest-bearing demand deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 2,554,479</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 2,297,454</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Money market deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 6,518,075</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 5,150,275</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Brokered certificates of deposit</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 26,270</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 202,948</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Other time deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 1,971,624</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 2,524,420</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;">Total deposits</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;"> 16,939,865</font></td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">15,090,655</font></td></tr><tr style="height: 16px"><td style="width: 530px; text-align:left;border-color:#000000;min-width:530px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:75px;"> </td><td style="width: 15px; text-align:right;border-color:#000000;min-width:15px;"> </td><td style="width: 75px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:75px;"> </td></tr><tr style="height: 16px"><td colspan="6" style="width: 720px; text-align:left;border-color:#000000;min-width:720px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Time deposits of $100,000 or more were $612 million and $981 million at December 31, 2012 and 2011, respectively.</font></td></tr></table></div>
CY2012Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1109861000	USD
CY2012Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2554479000	USD
CY2012Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	6518075000	USD
CY2012Q4	asbc	Brokered Certificates Of Deposit BrokeredCertificatesOfDeposit	26270000	USD
CY2012Q4	asbc	Other Time Deposits OtherTimeDeposits	1971624000	USD
CY2011Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	986766000	USD
CY2011Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	2297454000	USD
CY2011Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	5150275000	USD
CY2011Q4	asbc	Brokered Certificates Of Deposit BrokeredCertificatesOfDeposit	202948000	USD
CY2011Q4	asbc	Other Time Deposits OtherTimeDeposits	2524420000	USD
CY2012Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	612000000	USD
CY2011Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	981000000	USD
CY2012Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1383498000	USD
CY2012Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	244353000	USD
CY2012Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	119387000	USD
CY2012Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	108844000	USD
CY2012Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	111610000	USD
CY2012Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	30202000	USD
CY2012Q4	us-gaap	Time Deposits TimeDeposits	1997894000	USD
CY2011Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	15931000	USD
CY2011Q4	us-gaap	Commercial Paper CommercialPaper	0	USD
CY2012Q4	us-gaap	Commercial Paper CommercialPaper	51484000	USD
CY2011Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	9434000	USD
CY2011Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	211340000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	500476000	USD
CY2011Q4	us-gaap	Subordinated Debt SubordinatedDebt	25821000	USD
CY2011Q4	us-gaap	Senior Notes SeniorNotes	430000000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Weighted Average Interest Rate FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate	0.0179	pure
CY2012Q3	asbc	New Senior Debt Issued NewSeniorDebtIssued	155000000	USD
CY2011Q1	asbc	New Senior Debt Issued NewSeniorDebtIssued	300000000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Short Term FederalHomeLoanBankAdvancesShortTerm	1525000000	USD
CY2011Q4	us-gaap	Federal Home Loan Bank Advances Short Term FederalHomeLoanBankAdvancesShortTerm	1000000000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2514485000	USD
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2326939000	USD
CY2012Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	71385000	USD
CY2011Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	154730000	USD
CY2012Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	679070000	USD
CY2011Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	1359755000	USD
CY2012Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	400375000	USD
CY2012Q4	us-gaap	Senior Notes SeniorNotes	585000000	USD
CY2012Q4	us-gaap	Subordinated Debt SubordinatedDebt	25821000	USD
CY2012Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	0	USD
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	4150000	USD
CY2011Q3	asbc	New Senior Debt Issued NewSeniorDebtIssued	130000000	USD
CY2008Q3	us-gaap	Subordinated Borrowing Interest Rate SubordinatedBorrowingInterestRate	0.0925	pure
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	400042000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	154987000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1560000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	432832000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	85000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	25840000	USD
CY2012Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	3200000000	USD
CY2012Q4	asbc	Subsidiary Equity Balance SubsidiaryEquityBalance	3200000000	USD
CY2012Q4	us-gaap	Amount Available For Dividend Distribution Without Prior Approval From Regulatory Agency AmountAvailableForDividendDistributionWithoutPriorApprovalFromRegulatoryAgency	231000000	USD
CY2010Q1	asbc	Stock Issued During Period Price Per Share New Issues StockIssuedDuringPeriodPricePerShareNewIssues	11.15
CY2011Q4	asbc	Depositary Shares Issued DepositarySharesIssued	2600000	shares
CY2011Q4	asbc	Rate On Depositary Shares Issued RateOnDepositarySharesIssued	0.08	pure
CY2011Q4	asbc	Liquidation Preference On Depositary Shares LiquidationPreferenceOnDepositaryShares	1000
CY2011Q4	asbc	Depositary Share Per Share Value DepositarySharePerShareValue	25
CY2011	asbc	Depositary Shares Issued As Interest In Eight Percent Perpetual Preferred Stock DepositarySharesIssuedAsInterestInEightPercentPerpetualPreferredStock	On September 14, 2011, the Corporation issued 2,600,000 depositary shares, each representing a 1/40th interest in a share of the Corporation’s 8.00% Perpetual Preferred Stock, Series B, liquidation preference $1,000 per share (the “Series B Preferred Stock”).
CY2012	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	125000000	USD
CY2012	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4700000	shares
CY2012	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	12.77
CY2012Q4	us-gaap	Treasury Stock Carrying Basis TreasuryStockCarryingBasis	60000000	USD
CY2010Q1	asbc	Commonstockissuedduringperiodsharesnewissue Commonstockissuedduringperiodsharesnewissue	44800000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0200	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0200	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0300	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0120	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0227	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0270	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4894	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4724	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4538	pure
CY2012	asbc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Per Share Fair Value Of Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShareFairValueOfStockOptions	5.03
CY2011	asbc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Per Share Fair Value Of Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShareFairValueOfStockOptions	5.56
CY2010	asbc	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Per Share Fair Value Of Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShareFairValueOfStockOptions	4.60
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6708618	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1348474	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-14868	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-740766	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7301458	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5275738	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1624369	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-23437	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-1847116	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7055274	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	4623935	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	3060519	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-11120	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-1464115	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8640558	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	4603963	shares
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	43000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	27000	USD
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	7000	USD
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.16
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	13.24
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y5M
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y4M
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y0M
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y8M
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y7M
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y0M
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2460000	USD
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	63000	USD
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.71
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	20.95
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.33
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	27.60
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	14.20
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.66
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	24.51
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	21.99
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	26.10
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	12.97
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	13.16
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	21.56
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.88
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.80
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	570000	USD
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	8640558	shares
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	4603963	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	18.88
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	23.80
CY2012	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P6Y5M
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue	4000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue	4000000	USD
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	0	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	17.12
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	14.27
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue	5000000	USD
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	527131	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	772262	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1013765	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	604343	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	593437	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	506258	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-205239	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-169499	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-533014	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-153973	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-182435	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-54584	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	932425	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.00
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	13.38
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	13.73
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	13.60
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	19.67
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	12.38
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	21.68
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	13.94
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	13.79
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	17.74
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	13.86
CY2011	asbc	Average Cost Per Share Salary Share AverageCostPerShareSalaryShare	12.41	USD
CY2010	asbc	Average Cost Per Share Salary Share AverageCostPerShareSalaryShare	13.43	USD
CY2012	asbc	Number Of Highly Compensated Employees To Be Vested In Future NumberOfHighlyCompensatedEmployeesToBeVestedInFuture	20	pure
CY2012Q4	asbc	Defined Benefit Postretirement Plan Health Care Access Eligibility Terms1 DefinedBenefitPostretirementPlanHealthCareAccessEligibilityTerms1	55	pure
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	2258000	USD
CY2011	asbc	Defined Benefit Plan Actual Return On Plan Assets Percentage DefinedBenefitPlanActualReturnOnPlanAssetsPercentage	-0.0142	pure
CY2012	asbc	Defined Benefit Plan Actual Return On Plan Assets Percentage DefinedBenefitPlanActualReturnOnPlanAssetsPercentage	0.1246	pure
CY2012Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1	pure
CY2011Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1	pure
CY2012Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Money Market Accounts DefinedBenefitPlanFairValueOfPlanAssetsMoneyMarketAccounts	9958000	USD
CY2012Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Mutual Funds DefinedBenefitPlanFairValueOfPlanAssetsMutualFunds	124620000	USD
CY2012Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Commoncollective Trust Funds DefinedBenefitPlanFairValueOfPlanAssetsCommoncollectiveTrustFunds	89848000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	224426000	USD
CY2011Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Money Market Accounts DefinedBenefitPlanFairValueOfPlanAssetsMoneyMarketAccounts	1690000	USD
CY2011Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Mutual Funds DefinedBenefitPlanFairValueOfPlanAssetsMutualFunds	92026000	USD
CY2011Q4	asbc	Defined Benefit Plan Fair Value Of Plan Assets Commoncollective Trust Funds DefinedBenefitPlanFairValueOfPlanAssetsCommoncollectiveTrustFunds	79706000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	173422000	USD
CY2012	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	40000000	USD
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	26000000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8000000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear	10000000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	15000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	364000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	-13000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	-315000	USD
CY2011	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	15000	USD
CY2011	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	305000	USD
CY2011	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	-13000	USD
CY2011	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	-266000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	10000000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9000000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19724000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1468000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	21192000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	41908000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	12386000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-350000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	9336000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	37553000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2811000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8986000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	598000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	54046000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3238000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-91578000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-90980000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	115128000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	18205000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	6055000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	27073000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	46376000	USD
CY2012Q4	asbc	Nonaccrual Interest NonaccrualInterest	1112000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8518000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	224725000	USD
CY2012Q4	asbc	Fhlb Stock Dividends FhlbStockDividends	7602000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Prepaid Pension Costs DeferredTaxLiabilitiesPrepaidPensionCosts	55944000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	28478000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	6257000	USD
CY2012Q4	asbc	Deferred Loan Fee Income DeferredLoanFeeIncome	26800000	USD
CY2012Q4	asbc	State Income Taxes StateIncomeTaxes	16083000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2269000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2225000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	168044000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	56681000	USD
CY2012Q4	asbc	Other Comprehensive Income Available For Sale Securities Tax Unrealized OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxUnrealized	53579000	USD
CY2012Q4	asbc	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Plan Amendments Tax Effect Unrealized OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansPlanAmendmentsTaxEffectUnrealized	23586000	USD
CY2012Q4	asbc	Net Tax Effected Items NetTaxEffectedItems	29993000	USD
CY2012Q4	asbc	Net Defferred Tax Assets Including Tax Effected Items NetDefferredTaxAssetsIncludingTaxEffectedItems	26688000	USD
CY2011Q4	asbc	Deferred Loan Fee Income DeferredLoanFeeIncome	22914000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	17978000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1805000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7017000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	276757000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Prepaid Pension Costs DeferredTaxLiabilitiesPrepaidPensionCosts	49828000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	4796000	USD
CY2011Q4	asbc	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Plan Amendments Tax Effect Unrealized OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansPlanAmendmentsTaxEffectUnrealized	21219000	USD
CY2011Q4	asbc	Net Defferred Tax Assets Including Tax Effected Items NetDefferredTaxAssetsIncludingTaxEffectedItems	69747000	USD
CY2011Q4	asbc	State Income Taxes StateIncomeTaxes	20418000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	165782000	USD
CY2011Q4	asbc	Net Tax Effected Items NetTaxEffectedItems	41228000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	3955000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	24638000	USD
CY2011Q4	asbc	Other Comprehensive Income Available For Sale Securities Tax Unrealized OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxUnrealized	62447000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	28274000	USD
CY2011Q4	asbc	Nonaccrual Interest NonaccrualInterest	4042000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	11506000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	146027000	USD
CY2011Q4	asbc	Fhlb Stock Dividends FhlbStockDividends	10424000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	110975000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	13714000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	51835000	USD
CY2012Q4	asbc	Deferredtaxliabilitydepreciation Deferredtaxliabilitydepreciation	22386000	USD
CY2011Q4	asbc	Deferredtaxliabilitydepreciation Deferredtaxliabilitydepreciation	23368000	USD
CY2010Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	5984000000	USD
CY2011	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-5984000000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	0	USD
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.009	pure
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2012	us-gaap	Operating Loss Carryforwards Expiration Dates OperatingLossCarryforwardsExpirationDates	2013 through 2030
CY2012Q4	asbc	Alternative Minimum Tax Credit Carryforwards AlternativeMinimumTaxCreditCarryforwards	6000000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.049	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035	pure
CY2012	asbc	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	-0.019	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.003	pure
CY2012	asbc	Tax Reserve Adjustments TaxReserveAdjustments	-0.018	pure
CY2012	asbc	Compensation Deduction Limitations CompensationDeductionLimitations	0.003	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002	pure
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.297	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.033	pure
CY2011	asbc	Compensation Deduction Limitations CompensationDeductionLimitations	0.007	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.011	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.238	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.07	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.038	pure
CY2011	asbc	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	-0.028	pure
CY2011	asbc	Tax Reserve Adjustments TaxReserveAdjustments	-0.006	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.019	pure
CY2010	asbc	Compensation Deduction Limitations CompensationDeductionLimitations	-0.048	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.005	pure
CY2010	asbc	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	0.133	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.979	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.341	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.042	pure
CY2010	asbc	Tax Reserve Adjustments TaxReserveAdjustments	0.108	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.039	pure
CY2012Q4	asbc	Bad Debt Reserve Of Qualified Thrift Lender BadDebtReserveOfQualifiedThriftLender	100000000	USD
CY2012Q4	asbc	No Deferred Tax Liability For Aquired Allowance For Bad Debt From Savings Banks NoDeferredTaxLiabilityForAquiredAllowanceForBadDebtFromSavingsBanks	40000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-7000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	21000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-8000000	USD
CY2012Q4	asbc	Commitments Under Unconsolidated Projects CommitmentsUnderUnconsolidatedProjects	18000000	USD
CY2011Q4	asbc	Commitments Under Unconsolidated Projects CommitmentsUnderUnconsolidatedProjects	15000000	USD
CY2012Q4	asbc	Residential Mortgage Loans Sold With Recourse Risk ResidentialMortgageLoansSoldWithRecourseRisk	79000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	8000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14000000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	5000000	USD
CY2012Q4	asbc	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense Impact Effective Tax Rate UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpenseImpactEffectiveTaxRate	3000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	6000000	USD
CY2011Q4	asbc	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense Impact Effective Tax Rate UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpenseImpactEffectiveTaxRate	3000000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1000000	USD
CY2011Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	2000000	USD
CY2012Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	2000000	USD
CY2012Q4	us-gaap	Loss Contingency Related Receivable Carrying Value LossContingencyRelatedReceivableCarryingValue	2000000	USD
CY2011Q4	us-gaap	Loss Contingency Related Receivable Carrying Value LossContingencyRelatedReceivableCarryingValue	2000000	USD
CY2011Q4	asbc	Liability For Reinsurance Losses LiabilityForReinsuranceLosses	8000000	USD
CY2012Q4	asbc	Liability For Reinsurance Losses LiabilityForReinsuranceLosses	8000000	USD
CY2012Q4	us-gaap	Loss Contingency Settlement Agreement Consideration1 LossContingencySettlementAgreementConsideration1	13000000	USD
CY2012Q4	asbc	Cashreceivedfrominsurancecompanyforsettlementagreementoflawsuit Cashreceivedfrominsurancecompanyforsettlementagreementoflawsuit	2500000	USD
CY2012Q4	asbc	Cashreceivedfrominsurancecompanyfordefensecostsoflawsuit Cashreceivedfrominsurancecompanyfordefensecostsoflawsuit	1500000	USD
CY2012Q4	us-gaap	Other Investments OtherInvestments	35000000	USD
CY2011Q4	us-gaap	Other Investments OtherInvestments	36000000	USD
CY2011Q4	asbc	Residential Mortgage Loans Sold With Recourse Risk ResidentialMortgageLoansSoldWithRecourseRisk	56000000	USD
CY2012Q4	asbc	Residential Mortgage Loans Sold With Credit Recourse Risk ResidentialMortgageLoansSoldWithCreditRecourseRisk	321000000	USD
CY2011Q4	asbc	Residential Mortgage Loans Sold With Credit Recourse Risk ResidentialMortgageLoansSoldWithCreditRecourseRisk	475000000	USD
CY2012	us-gaap	Concentration Risk Credit Risk Financial Instrument Maximum Exposure ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure	18000000	USD
CY2012Q4	asbc	Repurchase Reserve For Potential Claims Relating To Loans Previously Sold RepurchaseReserveForPotentialClaimsRelatingToLoansPreviouslySold	3000000	USD
CY2011Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	85000000	USD
CY2012Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	70000000	USD
CY2012Q3	asbc	Derivative Maturity DerivativeMaturity	100000000	USD
CY2011	asbc	Deferred After Tax Net Gain Loss Included In Accumulated Other Comprehensive Income DeferredAfterTaxNetGainLossIncludedInAccumulatedOtherComprehensiveIncome	1000000	USD
CY2011Q3	asbc	Derivative Maturity DerivativeMaturity	100000000	USD
CY2012Q4	asbc	Covered Call Options Outstanding CoveredCallOptionsOutstanding	0	USD
CY2012Q4	asbc	Brokered Cds And Other Time Deposits Fair Value BrokeredCdsAndOtherTimeDepositsFairValue	1997894000	USD
CY2012	asbc	Fairvalueinputsclosingratio Fairvalueinputsclosingratio	0.89	pure
CY2012	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Prepayment Speed AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesPrepaymentSpeed	0.233	pure
CY2012	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Discount Rate AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate	0.097	pure
CY2012Q4	asbc	Other Real Estate Owned Fair Value Disclosure OtherRealEstateOwnedFairValueDisclosure	47000000	USD
CY2011Q4	asbc	Other Real Estate Owned Fair Value Disclosure OtherRealEstateOwnedFairValueDisclosure	54000000	USD
CY2011Q4	us-gaap	Real Estate Write Down Or Reserve Amount RealEstateWriteDownOrReserveAmount	9000000	USD
CY2012Q4	us-gaap	Real Estate Write Down Or Reserve Amount RealEstateWriteDownOrReserveAmount	8000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	563304000	USD
CY2012Q4	asbc	Interest Bearing Deposits In Banks Fair Value Disclosure InterestBearingDepositsInBanksFairValueDisclosure	147434000	USD
CY2012Q4	us-gaap	Federal Funds Sold And Securities Borrowed Or Purchased Under Agreements To Resell Fair Value Disclosure FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure	27135000	USD
CY2012Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	4926758000	USD
CY2012Q4	asbc	Federal Home Loan Bank And Federal Reserve Bank Stocks Fair Value Disclosure FederalHomeLoanBankAndFederalReserveBankStocksFairValueDisclosure	166774000	USD
CY2012Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	265914000	USD
CY2011Q4	asbc	Deposits Excluding Time Deposits Fair Value Disclosure DepositsExcludingTimeDepositsFairValueDisclosure	12363287000	USD
CY2011Q4	asbc	Brokered Cds And Other Time Deposits BrokeredCdsAndOtherTimeDeposits	2727368000	USD
CY2012Q4	us-gaap	Interest Receivable InterestReceivable	68386000	USD
CY2012Q4	asbc	Accrued Interest Receivable Fair Value Disclosure AccruedInterestReceivableFairValueDisclosure	68386000	USD
CY2012Q4	asbc	Other Derivatives Not Designated As Hedging Instruments OtherDerivativesNotDesignatedAsHedgingInstruments	69370000	USD
CY2012Q4	us-gaap	Other Derivatives Not Designated As Hedging Instruments At Fair Value Net OtherDerivativesNotDesignatedAsHedgingInstrumentsAtFairValueNet	69370000	USD
CY2012Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	1341000	USD
CY2012Q4	asbc	Interest Rate Lock Commitments InterestRateLockCommitments	7794000	USD
CY2012Q4	asbc	Interest Rate Lock Commitments At Fair Value InterestRateLockCommitmentsAtFairValue	7794000	USD
CY2012Q4	asbc	Purchased Deposit Option PurchasedDepositOption	3620000	USD
CY2012Q4	asbc	Purchased Deposit Option At Fair Value PurchasedDepositOptionAtFairValue	3620000	USD
CY2012Q4	us-gaap	Shortterm Debt Fair Value ShorttermDebtFairValue	2326939000	USD
CY2012Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1041550000	USD
CY2012Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	10208000	USD
CY2012Q4	us-gaap	Accrued Liabilities Fair Value Disclosure AccruedLiabilitiesFairValueDisclosure	10208000	USD
CY2012Q4	asbc	Interest Rate Related Agreements InterestRateRelatedAgreements	75131000	USD
CY2012Q4	asbc	Interest Rate Related Agreements Fair Value Disclosure InterestRateRelatedAgreementsFairValueDisclosure	75131000	USD
CY2012Q4	asbc	Foreign Currency Contracts Liability ForeignCurrencyContractsLiability	1212000	USD
CY2012Q4	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	1212000	USD
CY2012Q4	us-gaap	Line Of Credit LineOfCredit	3811000	USD
CY2012Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	3811000	USD
CY2012Q4	asbc	Forward Commitments ForwardCommitments	147000	USD
CY2012Q4	asbc	Forward Commitments Fair Value Disclosure ForwardCommitmentsFairValueDisclosure	147000	USD
CY2012Q4	asbc	Written Deposit Option WrittenDepositOption	3620000	USD
CY2012Q4	asbc	Written Deposit Option At Fair Value WrittenDepositOptionAtFairValue	3620000	USD
CY2012Q4	asbc	Foreign Currency Contract Asset ForeignCurrencyContractAsset	1341000	USD
CY2012Q4	us-gaap	Held To Maturity Securities Fair Value Disclosure HeldToMaturitySecuritiesFairValueDisclosure	39679000	USD
CY2012Q4	asbc	Deposits Excluding Time Deposits DepositsExcludingTimeDeposits	14941971000	USD
CY2012Q4	asbc	Deposits Excluding Time Deposits Fair Value Disclosure DepositsExcludingTimeDepositsFairValueDisclosure	14941971000	USD
CY2012Q4	asbc	Brokered Cds And Other Time Deposits BrokeredCdsAndOtherTimeDeposits	1997894000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	454958000	USD
CY2011Q4	asbc	Interest Bearing Deposits In Banks Fair Value Disclosure InterestBearingDepositsInBanksFairValueDisclosure	154562000	USD
CY2011Q4	us-gaap	Federal Funds Sold And Securities Borrowed Or Purchased Under Agreements To Resell Fair Value Disclosure FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure	7075000	USD
CY2011Q4	us-gaap	Held To Maturity Securities Fair Value Disclosure HeldToMaturitySecuritiesFairValueDisclosure	0	USD
CY2011Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	4937483000	USD
CY2011Q4	asbc	Federal Home Loan Bank And Federal Reserve Bank Stocks Fair Value Disclosure FederalHomeLoanBankAndFederalReserveBankStocksFairValueDisclosure	191188000	USD
CY2011Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	255201000	USD
CY2011Q4	asbc	Loans Receivable Net Fair Value Disclosure LoansReceivableNetFairValueDisclosure	12751626000	USD
CY2011Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	544764000	USD
CY2011Q4	asbc	Bank Owned Life Insurance Fair Value Disclosure BankOwnedLifeInsuranceFairValueDisclosure	544764000	USD
CY2011Q4	us-gaap	Interest Receivable InterestReceivable	68920000	USD
CY2011Q4	asbc	Accrued Interest Receivable Fair Value Disclosure AccruedInterestReceivableFairValueDisclosure	68920000	USD
CY2011Q4	asbc	Other Derivatives Not Designated As Hedging Instruments OtherDerivativesNotDesignatedAsHedgingInstruments	71143000	USD
CY2011Q4	us-gaap	Other Derivatives Not Designated As Hedging Instruments At Fair Value Net OtherDerivativesNotDesignatedAsHedgingInstrumentsAtFairValueNet	71143000	USD
CY2011Q4	asbc	Foreign Currency Contract Asset ForeignCurrencyContractAsset	2079000	USD
CY2011Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	2079000	USD
CY2011Q4	asbc	Interest Rate Lock Commitments InterestRateLockCommitments	4571000	USD
CY2011Q4	asbc	Interest Rate Lock Commitments At Fair Value InterestRateLockCommitmentsAtFairValue	4571000	USD
CY2011Q4	asbc	Purchased Deposit Option PurchasedDepositOption	2854000	USD
CY2011Q4	asbc	Purchased Deposit Option At Fair Value PurchasedDepositOptionAtFairValue	2854000	USD
CY2011Q4	asbc	Deposits Excluding Time Deposits DepositsExcludingTimeDeposits	12363287000	USD
CY2011Q4	asbc	Brokered Cds And Other Time Deposits Fair Value BrokeredCdsAndOtherTimeDepositsFairValue	2727368000	USD
CY2011	asbc	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	107231000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	102000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2000	shares
CY2012	asbc	Undistributed Earnings Allocations UndistributedEarningsAllocations	134139000	USD
CY2011Q4	us-gaap	Accrued Liabilities Fair Value Disclosure AccruedLiabilitiesFairValueDisclosure	15931000	USD
CY2011Q4	asbc	Interest Rate Related Agreements InterestRateRelatedAgreements	80075000	USD
CY2011Q4	asbc	Interest Rate Related Agreements Fair Value Disclosure InterestRateRelatedAgreementsFairValueDisclosure	80075000	USD
CY2011Q4	asbc	Foreign Currency Contracts Liability ForeignCurrencyContractsLiability	1891000	USD
CY2011Q4	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	1891000	USD
CY2011Q4	us-gaap	Line Of Credit LineOfCredit	3648000	USD
CY2011Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	3648000	USD
CY2011Q4	asbc	Forward Commitments ForwardCommitments	4771000	USD
CY2011Q4	asbc	Forward Commitments Fair Value Disclosure ForwardCommitmentsFairValueDisclosure	4771000	USD
CY2011Q4	asbc	Written Deposit Option WrittenDepositOption	2854000	USD
CY2011Q4	asbc	Written Deposit Option At Fair Value WrittenDepositOptionAtFairValue	2854000	USD
CY2012Q4	us-gaap	Cash And Securities Segregated Under Federal And Other Regulations CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations	56000000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	39462000	USD
CY2012	asbc	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	172000	USD
CY2012	us-gaap	Undistributed Earnings UndistributedEarnings	134139000	USD
CY2012	asbc	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-39462000	USD
CY2012	asbc	Undistributed Earnings Basic UndistributedEarningsBasic	133549000	USD
CY2012	asbc	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	173011000	USD
CY2012	asbc	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-39462000	USD
CY2012	asbc	Undistributed Earnings To Common Shareholders Diluted UndistributedEarningsToCommonShareholdersDiluted	133549000	USD
CY2012	asbc	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	173011000	USD
CY2011	asbc	Undistributed Earnings To Common Shareholders Diluted UndistributedEarningsToCommonShareholdersDiluted	107231000	USD
CY2011	asbc	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	42000	USD
CY2011	us-gaap	Undistributed Earnings UndistributedEarnings	107892000	USD
CY2011	asbc	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	114166000	USD
CY2011	asbc	Undistributed Earnings Basic UndistributedEarningsBasic	107231000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	6935000	USD
CY2011	asbc	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-6935000	USD
CY2011	asbc	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	114166000	USD
CY2011	asbc	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-6935000	USD
CY2010	us-gaap	Undistributed Earnings UndistributedEarnings	-37335000	USD
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2010	asbc	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	30000	USD
CY2010	asbc	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-6918000	USD
CY2010	asbc	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	-30417000	USD
CY2010	asbc	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	-30417000	USD
CY2010	asbc	Undistributed Earnings Basic UndistributedEarningsBasic	-37335000	USD
CY2010	asbc	Undistributed Earnings To Common Shareholders Diluted UndistributedEarningsToCommonShareholdersDiluted	-37335000	USD
CY2010	us-gaap	Dividends Common Stock DividendsCommonStock	6918000	USD
CY2010	asbc	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-6918000	USD
CY2012	asbc	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	133549000	USD
CY2012	asbc	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	590000	USD
CY2011	asbc	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	661000	USD
CY2011	asbc	Undistributed Earnings Allocations UndistributedEarningsAllocations	107892000	USD
CY2010	asbc	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	0	USD
CY2010	asbc	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	-37335000	USD
CY2010	asbc	Undistributed Earnings Allocations UndistributedEarningsAllocations	-37335000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9000000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000000	shares
CY2012	us-gaap	Revenues Revenues	939282000	USD
CY2011	us-gaap	Revenues Revenues	885950000	USD
CY2010	us-gaap	Revenues Revenues	969241000	USD
CY2011	asbc	Average Allocated Capital AverageAllocatedCapital	1713155000	USD
CY2011	asbc	Average Earning Assets AverageEarningAssets	19442263000	USD
CY2011	us-gaap	Average Balance During Period Of Loans Held In Portfolio AverageBalanceDuringPeriodOfLoansHeldInPortfolio	13278848000	USD
CY2011	asbc	Average Deposits AverageDeposits	14401127000	USD
CY2010	asbc	Returnonaverageallocatedcapital Returnonaverageallocatedcapital	-0.019	pure
CY2011	asbc	Returnonaverageallocatedcapital Returnonaverageallocatedcapital	0.067	pure
CY2012	asbc	Returnonaverageallocatedcapital Returnonaverageallocatedcapital	0.095	pure
CY2010	asbc	Average Earning Assets AverageEarningAssets	20568495000	USD
CY2010	us-gaap	Average Balance During Period Of Loans Held In Portfolio AverageBalanceDuringPeriodOfLoansHeldInPortfolio	13186712000	USD
CY2010	asbc	Average Deposits AverageDeposits	16946301000	USD
CY2010	asbc	Average Allocated Capital AverageAllocatedCapital	1559665000	USD
CY2012	asbc	Average Earning Assets AverageEarningAssets	19613777000	USD
CY2012	us-gaap	Average Balance During Period Of Loans Held In Portfolio AverageBalanceDuringPeriodOfLoansHeldInPortfolio	14741785000	USD
CY2012	asbc	Average Deposits AverageDeposits	15582369000	USD
CY2012	asbc	Average Allocated Capital AverageAllocatedCapital	1838424000	USD

Files In Submission

Name	View Source	Status
0001193125-13-062681-index-headers.html	Edgar Link	pending
0001193125-13-062681-index.html	Edgar Link	pending
0001193125-13-062681.txt	Edgar Link	pending
0001193125-13-062681-xbrl.zip	Edgar Link	pending
asbc-20121231.xml	Edgar Link	completed
asbc-20121231.xsd	Edgar Link	pending
asbc-20121231_cal.xml	Edgar Link	unprocessable
asbc-20121231_def.xml	Edgar Link	unprocessable
asbc-20121231_lab.xml	Edgar Link	unprocessable
asbc-20121231_pre.xml	Edgar Link	unprocessable
d486140d10k.htm	Edgar Link	pending
d486140dex21.htm	Edgar Link	pending
d486140dex23.htm	Edgar Link	pending
d486140dex24.htm	Edgar Link	pending
d486140dex311.htm	Edgar Link	pending
d486140dex312.htm	Edgar Link	pending
d486140dex32.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
g486140g50p58.jpg	Edgar Link	pending
g486140g52c45.jpg	Edgar Link	pending
g486140g77d19.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$ASB
ASSOCIATED BANC-CORP Stock $asb

2012 Form 10-K Financial Statement

#000119312513062681 Filed on February 15, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ASB ASSOCIATED BANC-CORP Stock $asb

2012 Form 10-K Financial Statement

#000119312513062681 Filed on February 15, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ASB
ASSOCIATED BANC-CORP Stock $asb