$ASB
ASSOCIATED BANC-CORP Stock $asb

$asb Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000000778922000007 Filed on February 08, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue		$1.058B
YoY Change		-17.13%
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	$16.40M	$46.51M	$20.40M
YoY Change	-19.61%	-8.03%	-1.92%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$72.33M
YoY Change		-51.74%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$92.00M	$436.3M	$83.90M
YoY Change	9.65%	33.44%	-6.26%
Income Tax	$15.20M	$85.31M	$16.90M
% Of Pretax Income	16.52%	19.55%	20.14%
Net Earnings	$76.90M	$351.0M	$67.00M
YoY Change	14.78%	14.42%	-7.07%
Net Earnings / Revenue		33.17%
Basic Earnings Per Share		$2.20
Diluted Earnings Per Share	$513.4K	$2.18	$438.5K
COMMON SHARES
Basic Shares Outstanding	150.1M shares	150.8M shares	153.6M shares
Diluted Shares Outstanding		152.0M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.026B		$716.0M
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	$385.2M	$385.0M	$418.9M
YoY Change	-8.05%	-14.63%	-3.76%
Goodwill	$1.100B		$1.100B
YoY Change	0.0%		-8.33%
Intangibles	$58.09M		$68.25M
YoY Change	-14.89%		-22.7%
Long-Term Investments	$294.0M	$294.0M	$297.0M
YoY Change	-1.01%	-1.01%	6.07%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$35.10B	$35.10B	$33.42B
YoY Change	5.04%	5.04%	3.19%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$349.0M	$349.0M	$364.0M
YoY Change	-4.12%	-4.12%	-25.71%
Deferred Revenue
YoY Change
Short-Term Debt	$354.3M	$354.0M	$252.3M
YoY Change	40.4%	40.48%	-45.75%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$349.0M	$349.0M	$364.0M
YoY Change	-4.12%	-4.12%	-25.71%
LONG-TERM LIABILITIES
Long-Term Debt	$249.0M	$249.0M	$549.0M
YoY Change	-54.64%	-54.64%	0.0%
Other Long-Term Liabilities	$40.00M	$40.00M	$48.00M
YoY Change	-16.67%	-16.67%
Total Long-Term Liabilities	$289.0M	$289.0M	$597.0M
YoY Change	-51.59%	-51.59%	8.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$349.0M	$349.0M	$364.0M
Total Long-Term Liabilities	$289.0M	$289.0M	$597.0M
Total Liabilities	$31.08B	$31.08B	$29.33B
YoY Change	5.97%	5.97%	3.04%
SHAREHOLDERS EQUITY
Retained Earnings	$2.673B		$2.459B
YoY Change	8.69%		3.28%
Common Stock	$1.716B		$1.722B
YoY Change	-0.38%		0.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$546.2M		$456.2M
YoY Change	19.74%		13.92%
Treasury Stock Shares
Shareholders Equity	$4.025B	$4.025B	$4.091B
YoY Change
Total Liabilities & Shareholders Equity	$35.10B	$35.10B	$33.42B
YoY Change	5.04%	5.04%	3.19%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$76.90M	$351.0M	$67.00M
YoY Change	14.78%	14.42%	-7.07%
Depreciation, Depletion And Amortization	$16.40M	$46.51M	$20.40M
YoY Change	-19.61%	-8.03%	-1.92%
Cash From Operating Activities	$165.5M	$529.6M	$126.9M
YoY Change	30.42%	-3.72%	21.67%
INVESTING ACTIVITIES
Capital Expenditures	-$18.00M	-$52.30M	-$20.30M
YoY Change	-11.33%	-4.39%	18.71%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$1.404B	-$1.532B	$799.1M
YoY Change	-275.72%	107.27%	1410.59%
Cash From Investing Activities	-$1.422B	-$1.584B	$778.9M
YoY Change	-282.59%	99.59%	2075.7%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$300.0M
YoY Change
Cash From Financing Activities	596.4M	$1.364B	-1.304B
YoY Change	-145.75%	267.66%	319.27%
NET CHANGE
Cash From Operating Activities	165.5M	$529.6M	126.9M
Cash From Investing Activities	-1.422B	-$1.584B	778.9M
Cash From Financing Activities	596.4M	$1.364B	-1.304B
Net Change In Cash	-660.3M	$309.5M	-397.7M
YoY Change	66.03%	143.09%	132.85%
FREE CASH FLOW
Cash From Operating Activities	$165.5M	$529.6M	$126.9M
Capital Expenditures	-$18.00M	-$52.30M	-$20.30M
Free Cash Flow	$183.5M	$581.9M	$147.2M
YoY Change	24.66%	-3.78%	21.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000007789
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021Q2	dei	Entity Public Float EntityPublicFloat	3085259987	USD
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	149604819	shares
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-31343
CY2021	dei	Entity Registrant Name EntityRegistrantName	ASSOCIATED BANC-CORP
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WI
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	39-1098068
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	433 Main Street
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Green Bay,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	WI
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	54301
CY2021	dei	City Area Code CityAreaCode	920
CY2021	dei	Local Phone Number LocalPhoneNumber	491-7500
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
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CY2021	dei	Auditor Name AuditorName	KPMG LLP
CY2021	dei	Auditor Location AuditorLocation	Chicago, Illinois
CY2021	dei	Auditor Firm AuditorFirmId	185
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CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11031000	USD
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10200000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	63513000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	11165000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	332364000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	514056000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	380824000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	426687000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	432151000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	487063000	USD
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	81689000	USD
CY2020	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	81214000	USD
CY2019	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	82429000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	64064000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	62399000	USD
CY2021	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	21149000	USD
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	18428000	USD
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	29600000	USD
CY2021	us-gaap	Equipment Expense EquipmentExpense	21104000	USD
CY2020	us-gaap	Equipment Expense EquipmentExpense	21705000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	23550000	USD
CY2021	asb	Legal And Professional Fees LegalAndProfessionalFees	21923000	USD
CY2020	asb	Legal And Professional Fees LegalAndProfessionalFees	21546000	USD
CY2019	asb	Legal And Professional Fees LegalAndProfessionalFees	19901000	USD
CY2021	asb	Loan Expense LoanExpense	8143000	USD
CY2020	asb	Loan Expense LoanExpense	12600000	USD
CY2019	asb	Loan Expense LoanExpense	8861000	USD
CY2021	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	18150000	USD
CY2020	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	20350000	USD
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	16250000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8844000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10192000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9948000	USD
CY2021	asb	Loss On Prepayments Of Fhlb Advances LossOnPrepaymentsOfFHLBAdvances	0	USD
CY2019	asb	Loss On Prepayments Of Fhlb Advances LossOnPrepaymentsOfFHLBAdvances	0	USD
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	38721000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	49135000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	53986000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	709924000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	776034000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	793988000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	436307000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	326972000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	406509000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85313000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20200000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	79720000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	17111000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	18358000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	15202000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	333883000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	288413000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	311587000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150773000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	153005000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160534000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151987000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153642000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	161932000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-63714000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	55628000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	111592000	USD
CY2021	asb	Amortizationof Net Unrealized Gainon Availablefor Sale Securities Transferedto Heldtomaturity Securities AmortizationofNetUnrealizedGainonAvailableforSaleSecuritiesTransferedtoHeldtomaturitySecurities	-1551000	USD
CY2020	asb	Amortizationof Net Unrealized Gainon Availablefor Sale Securities Transferedto Heldtomaturity Securities AmortizationofNetUnrealizedGainonAvailableforSaleSecuritiesTransferedtoHeldtomaturitySecurities	-3359000	USD
CY2019	asb	Amortizationof Net Unrealized Gainon Availablefor Sale Securities Transferedto Heldtomaturity Securities AmortizationofNetUnrealizedGainonAvailableforSaleSecuritiesTransferedtoHeldtomaturitySecurities	-895000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-16000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	9222000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	5957000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-15557000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	12429000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	26898000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-46591000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	37336000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	79631000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-148000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-148000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-148000	USD
CY2021	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	1494000	USD
CY2020	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	0	USD
CY2019	us-gaap	Defined Benefit Plan Plan Amendments DefinedBenefitPlanPlanAmendments	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	25519000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	7780000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	16296000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	4594000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	3897000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	476000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-7803000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-3064000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-4465000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-23656000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-8465000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-12158000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-22935000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	45801000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	91789000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	328059000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	352572000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	418579000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3780888000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2019	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	91789000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	418579000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	11216000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	111804000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	15202000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	24854000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	-331000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3922124000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	45801000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	352572000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	96796000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3966000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	112023000	USD
CY2020	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	18358000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	21561000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	4090933000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-22935000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-88011000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	328059000	USD
CY2021	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	-164458000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	25702000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	116061000	USD
CY2021	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	17111000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15591000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	4024853000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	174006000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	16000000	USD
CY2021	us-gaap	Depreciation Depreciation	46508000	USD
CY2020	us-gaap	Depreciation Depreciation	50567000	USD
CY2019	us-gaap	Depreciation Depreciation	58149000	USD
CY2021	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-16186000	USD
CY2020	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	17704000	USD
CY2019	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	63000	USD
CY2021	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	19436000	USD
CY2020	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	22664000	USD
CY2019	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	12432000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8844000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10192000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9948000	USD
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-15088000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-25028000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-23573000	USD
CY2021	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	34070000	USD
CY2020	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	25556000	USD
CY2019	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	20062000	USD
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-16000	USD
CY2020	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	9222000	USD
CY2019	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	5957000	USD
CY2021	asb	Gains Losses On Sales Of Ppe And Other Assets GainsLossesOnSalesOfPPEAndOtherAssets	11009000	USD
CY2020	asb	Gains Losses On Sales Of Ppe And Other Assets GainsLossesOnSalesOfPPEAndOtherAssets	155589000	USD
CY2019	asb	Gains Losses On Sales Of Ppe And Other Assets GainsLossesOnSalesOfPPEAndOtherAssets	2713000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	1038000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	7449000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	39106000	USD
CY2020	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	59379000	USD
CY2019	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	20120000	USD
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1749556000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1642135000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	1090792000	USD
CY2021	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1774791000	USD
CY2020	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1959571000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	1317077000	USD
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-9735000	USD
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-933000	USD
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-7595000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-10675000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-11385000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	2495000	USD
CY2021	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	24645000	USD
CY2020	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-29057000	USD
CY2019	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	723000	USD
CY2021	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	120418000	USD
CY2020	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-113760000	USD
CY2019	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-102966000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-13931000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-47268000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	43908000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-54520000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-32270000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	42005000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	529551000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	550020000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	574260000	USD
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-198631000	USD
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1640524000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	137990000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2746994000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1648938000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	460124000	USD
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	622485000	USD
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	125480000	USD
CY2019	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	423682000	USD
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	10000	USD
CY2020	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	84152000	USD
CY2019	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	246836000	USD
CY2021	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	52281000	USD
CY2020	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	54682000	USD
CY2019	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	67459000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	200000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	158743000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	626283000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	1367476000	USD
CY2021	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	0	USD
CY2020	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	144000000	USD
CY2019	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	270023000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1216657000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1343056000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	561659000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	299761000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	449078000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	260510000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	29833000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	27964000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	10250000	USD
CY2021	asb	Net Changein Tax Credit Investments NetChangeinTaxCreditInvestments	68455000	USD
CY2020	asb	Net Changein Tax Credit Investments NetChangeinTaxCreditInvestments	55134000	USD
CY2019	asb	Net Changein Tax Credit Investments NetChangeinTaxCreditInvestments	67632000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-31518000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	551250000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1584186000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-793737000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1617446000	USD
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2015423000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	2497378000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-1842748000	USD
CY2021	asb	Net Decrease In Deposits Due To Branch Sales NetDecreaseInDepositsDueToBranchSales	-31083000	USD
CY2020	asb	Net Decrease In Deposits Due To Branch Sales NetDecreaseInDepositsDueToBranchSales	-222878000	USD
CY2019	asb	Net Decrease In Deposits Due To Branch Sales NetDecreaseInDepositsDueToBranchSales	0	USD
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	101946000	USD
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-238655000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	308039000	USD
CY2021	asb	Proceedsfrom Repaymentofshortterm Fhlb Advances ProceedsfromRepaymentofshorttermFHLBAdvances	0	USD
CY2020	asb	Proceedsfrom Repaymentofshortterm Fhlb Advances ProceedsfromRepaymentofshorttermFHLBAdvances	-520000000	USD
CY2019	asb	Proceedsfrom Repaymentofshortterm Fhlb Advances ProceedsfromRepaymentofshorttermFHLBAdvances	-380000000	USD
CY2021	asb	Repaymentof Fhlb Advance RepaymentofFHLBAdvance	-18437000	USD
CY2020	asb	Repaymentof Fhlb Advance RepaymentofFHLBAdvance	-1040972000	USD
CY2019	asb	Repaymentof Fhlb Advance RepaymentofFHLBAdvance	-764657000	USD
CY2021	asb	Proceedsfrom Fhlb Advance ProceedsfromFHLBAdvance	-6950000	USD
CY2020	asb	Proceedsfrom Fhlb Advance ProceedsfromFHLBAdvance	-4215000	USD
CY2019	asb	Proceedsfrom Fhlb Advance ProceedsfromFHLBAdvance	-751573000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	300000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250000000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	965000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1081000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1000	USD
CY2021	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	96796000	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	25702000	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	3966000	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	11216000	USD
CY2021	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	164458000	USD
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2019	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	116061000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	112023000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	111804000	USD
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	17111000	USD
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	18358000	USD
CY2019	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	15202000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1364102000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	371020000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2479660000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	309467000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	127304000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-287954000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	716048000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	588744000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	876698000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1025515000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	716048000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	588744000	USD
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	189000000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	81604000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	159291000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	332919000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	57728000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	17734000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	41131000	USD
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	35553000	USD
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	19261000	USD
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	10513000	USD
CY2021	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	16151000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	13667000	USD
CY2019	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	11606000	USD
CY2021	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	6010000	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	264570000	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	313570000	USD
CY2021	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	0	USD
CY2020	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	0	USD
CY2019	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	692414000	USD
CY2021	asb	Unsettled Trades To Purchase Securities UnsettledTradesToPurchaseSecurities	4459000	USD
CY2020	asb	Unsettled Trades To Purchase Securities UnsettledTradesToPurchaseSecurities	0	USD
CY2019	asb	Unsettled Trades To Purchase Securities UnsettledTradesToPurchaseSecurities	0	USD
CY2021Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets	0	USD
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets	456480000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets	695848000	USD
CY2021Q4	asb	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Intangible Assets Including Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIntangibleAssetsIncludingGoodwill	0	USD
CY2020Q4	asb	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Intangible Assets Including Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIntangibleAssetsIncludingGoodwill	23548000	USD
CY2019Q4	asb	Business Combination Recognized Identifiable Assets Acquiredand Liabilities Assumed Intangible Assets Including Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedIntangibleAssetsIncludingGoodwill	29837000	USD
CY2021Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	0	USD
CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	480028000	USD
CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	725764000	USD
CY2021Q4	asb	Equity Issued In Adjustments Related To Acquisition EquityIssuedInAdjustmentsRelatedToAcquisition	0	USD
CY2020Q4	asb	Equity Issued In Adjustments Related To Acquisition EquityIssuedInAdjustmentsRelatedToAcquisition	0	USD
CY2019Q4	asb	Equity Issued In Adjustments Related To Acquisition EquityIssuedInAdjustmentsRelatedToAcquisition	-79000	USD
CY2021	us-gaap	Available For Sale Debt Securities Gross Unrealized Gain AvailableForSaleDebtSecuritiesGrossUnrealizedGain	28850000	USD
CY2020Q1	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	77221000	USD
CY2020Q1	us-gaap	Financing Receivable Purchased With Credit Deterioration Allowance For Credit Loss At Acquisition Date FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate	3504000	USD
CY2020Q1	us-gaap	Financing Receivable Purchased With Credit Deterioration Discount Premium FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium	-951000	USD
CY2020Q1	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Par Value FinancingReceivablePurchasedWithCreditDeteriorationAmountAtParValue	79774000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	4338671000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2239003000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	118471000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	-8809000	USD
CY2021	us-gaap	Available For Sale Debt Securities Gross Unrealized Loss AvailableForSaleDebtSecuritiesGrossUnrealizedLoss	-35506000	USD
CY2021Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4332015000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2348664000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3028399000	USD
CY2020	us-gaap	Available For Sale Debt Securities Gross Unrealized Gain AvailableForSaleDebtSecuritiesGrossUnrealizedGain	60612000	USD
CY2020	us-gaap	Available For Sale Debt Securities Gross Unrealized Loss AvailableForSaleDebtSecuritiesGrossUnrealizedLoss	-3570000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3085441000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	1879005000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	149938000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2028943000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	6799000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	6809000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	34646000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	34842000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	74250000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	74142000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	34697000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	35820000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	405344000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	418942000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	161627000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	167967000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	37416000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	41412000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	1398789000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	1502359000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	523808000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	541305000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	1629759000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	1740988000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	4338671000	USD
CY2021Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	4332015000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2239003000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	2348664000	USD
CY2021Q4	asb	Ratioof Fair Valueto Amortized Cost Afs RatioofFairValuetoAmortizedCostAFS	0.998
CY2021Q4	asb	Ratio Of Fair Value To Amortized Cost Htm RatioOfFairValueToAmortizedCostHtm	1.049
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	2239003000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	1879005000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	421000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	9312000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6374000	USD
CY2021	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2019	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	13444000	USD
CY2020	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-437000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-90000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	-13861000	USD
CY2021	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	-16000	USD
CY2020	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	9222000	USD
CY2019	us-gaap	Debt Securities Realized Gain Loss DebtSecuritiesRealizedGainLoss	5957000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	158708000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	626283000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	1367476000	USD
CY2021Q1	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	51000000	USD
CY2020Q2	asb	Debt Securities Afs Principal Sold DebtSecuritiesAFSPrincipalSold	261000000	USD
CY2020Q2	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	3000000	USD
CY2020Q1	asb	Debt Securities Afs Principal Sold DebtSecuritiesAFSPrincipalSold	281000000	USD
CY2020Q1	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	6000000	USD
CY2019Q2	asb	Visa Restricted Stock Owned At Fair Value VisaRestrictedStockOwnedAtFairValue	77000	shares
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	2300000000	USD
CY2019Q3	asb	Debt Securities Held To Maturity Transfer To Afs DebtSecuritiesHeldToMaturityTransferToAFS	692000000	USD
CY2019	asb	Debt Securities Afs Principal Sold DebtSecuritiesAFSPrincipalSold	157000000	USD
CY2019	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	3000000	USD
CY2019	asb	Carrying Amount Of Securities Sold Credit CarryingAmountOfSecuritiesSoldCredit	1200000000	USD
CY2019Q2	asb	Visa B Restricted Stock Donated VisaBRestrictedStockDonated	42039	shares
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	2100000000	USD
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CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	-67000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	120	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	-34586000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	2955152000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	17	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	-920000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	66478000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	-35506000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	3021630000	USD
CY2021Q4	asb	Heldtomaturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positionslessthan12 Months HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionslessthan12Months	72	security
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CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	533577000	USD
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CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	10775000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	-8809000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	544352000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	27	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	-685000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	192720000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	16	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	-2885000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	178681000	USD
CY2020Q4	asb	Heldtomaturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions12 Monthsor Longer HeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions12MonthsorLonger	0	security
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	-3570000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	371400000	USD
CY2020Q4	asb	Heldtomaturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positionslessthan12 Months HeldtomaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionslessthan12Months	1	security
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	325000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	325000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	82000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	82000000	USD
CY2020Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	87000000	USD
CY2021Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	87000000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	5000000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2000000	USD
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CY2019Q2	asb	Visa Restricted Stock Owned At Fair Value VisaRestrictedStockOwnedAtFairValue	77000	shares
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CY2020Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	13000000	USD
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CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24451724000	USD
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CY2020	asb	Financing Receivable Nonaccrual Interest Income String FinancingReceivableNonaccrualInterestIncomeString	3000000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	29420000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	16772000	USD
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CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	45245000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	29420000	USD
CY2021Q4	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	60636000	USD
CY2021Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	3253933000	USD
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CY2021Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	2805265000	USD
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	24224949000	USD
CY2020Q4	us-gaap	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	69246000	USD
CY2020Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	3173996000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	6590550000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	5127451000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	3189745000	USD
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CY2020Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	1770647000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	2661424000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	24451724000	USD
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CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	130443000	USD
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CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	24451724000	USD
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CY2021Q4	asb	Nonaccrual Restructured Loans NonaccrualRestructuredLoans	17426000	USD
CY2020Q4	asb	Performing Restructured Loans PerformingRestructuredLoans	52092000	USD
CY2020Q4	asb	Nonaccrual Restructured Loans NonaccrualRestructuredLoans	20190000	USD
CY2019Q4	asb	Performing Restructured Loans PerformingRestructuredLoans	26041000	USD
CY2019Q4	asb	Nonaccrual Restructured Loans NonaccrualRestructuredLoans	22494000	USD
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CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	24201000	USD
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CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	37125000	USD
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CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
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CY2021Q4	us-gaap	Goodwill Goodwill	1100000000	USD
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CY2019Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	67607000	USD
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CY2020	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	22664000	USD
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CY2020Q4	asb	Mortgage Servicing Rights Expense MortgageServicingRightsExpense	40369000	USD
CY2019Q4	asb	Mortgage Servicing Rights Expense MortgageServicingRightsExpense	12494000	USD
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CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	360202000	USD
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CY2020	asb	Finance Lease Cost FinanceLeaseCost	154000	USD
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CY2021	asb	Finance Lease Payments FinanceLeasePayments	137000	USD
CY2020	asb	Finance Lease Payments FinanceLeasePayments	122000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	143000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	962000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	163000	USD
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CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	40806000	USD
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CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	164000	USD
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CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1145000	USD
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CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8056000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	141000	USD
CY2021Q4	asb	Lease Liability Payments Due In Next Twelve Months LeaseLiabilityPaymentsDueInNextTwelveMonths	8197000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	6170000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	22000	USD
CY2021Q4	asb	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	6193000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	5383000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	USD
CY2021Q4	asb	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	5383000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4084000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q4	asb	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	4084000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3518000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q4	asb	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	3518000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	7541000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q4	asb	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	7541000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	34751000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	164000	USD
CY2021Q4	asb	Lease Liability Payments Due Total LeaseLiabilityPaymentsDueTotal	34915000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3406000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	1000	USD
CY2021Q4	asb	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	3407000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	163000	USD
CY2021Q4	asb	Lease Liability LeaseLiability	31508000	USD
CY2021Q4	asb	Lessee Operating Lease Lease Notyet Commenced Liability LesseeOperatingLeaseLeaseNotyetCommencedLiability	13000000	USD
CY2020Q4	asb	Lessee Operating Lease Lease Notyet Commenced Liability LesseeOperatingLeaseLeaseNotyetCommencedLiability	17000000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	3099000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	2980000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	2715000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	2427000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	2184000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	7113000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	20519000	USD
CY2020	asb	Operating Leases Rent Expense Net Of Lease Income OperatingLeasesRentExpenseNetOfLeaseIncome	5000000	USD
CY2021	asb	Operating Leases Rent Expense Net Of Lease Income OperatingLeasesRentExpenseNetOfLeaseIncome	5000000	USD
CY2019	asb	Operating Leases Rent Expense Net Of Lease Income OperatingLeasesRentExpenseNetOfLeaseIncome	5000000	USD
CY2021	asb	Deposits By Type Tabletext Block DepositsByTypeTabletextBlock	<div style="margin-bottom:3pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The distribution of deposits at December 31 is as follows:</span></div><div style="margin-bottom:3pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:73.498%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.600%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.602%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">($ in Thousands)</span></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td></tr><tr><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Noninterest-bearing demand</span></td><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">8,504,077 </span></td><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">7,661,728 </span></td><td style="background-color:#dddddd;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Savings </span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">4,410,198 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">3,650,085 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#dddddd;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Interest-bearing demand </span></td><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">7,019,782 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">6,090,869 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Money market</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">7,185,111 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">7,322,769 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Time deposits</span></td><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">1,347,262 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">1,757,030 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Total deposits</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">28,466,430 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">26,482,481 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div>
CY2021Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	8504077000	USD
CY2020Q4	us-gaap	Noninterest Bearing Domestic Deposit Demand NoninterestBearingDomesticDepositDemand	7661728000	USD
CY2021Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	4410198000	USD
CY2020Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	3650085000	USD
CY2021Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	7019782000	USD
CY2020Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	6090869000	USD
CY2021Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	7185111000	USD
CY2020Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	7322769000	USD
CY2021Q4	asb	Other Time Deposits OtherTimeDeposits	1347262000	USD
CY2020Q4	asb	Other Time Deposits OtherTimeDeposits	1757030000	USD
CY2021Q4	us-gaap	Deposits Deposits	28466430000	USD
CY2020Q4	us-gaap	Deposits Deposits	26482481000	USD
CY2021Q4	us-gaap	Time Deposit Liability Uninsured TimeDepositLiabilityUninsured	14600000000	USD
CY2020Q4	us-gaap	Time Deposit Liability Uninsured TimeDepositLiabilityUninsured	14900000000	USD
CY2021Q4	asb	Time Deposits250000 Or More TimeDeposits250000OrMore	215000000	USD
CY2020Q4	asb	Time Deposits250000 Or More TimeDeposits250000OrMore	341000000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1055614000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	177715000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	66105000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	25211000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	22612000	USD
CY2021Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	5000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	1347262000	USD
CY2021Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	120000	USD
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	7070000	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	319412000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	185901000	USD
CY2021Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	319532000	USD
CY2020Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	192971000	USD
CY2021Q4	us-gaap	Commercial Paper CommercialPaper	34730000	USD
CY2020Q4	us-gaap	Commercial Paper CommercialPaper	59346000	USD
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	354262000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	252317000	USD
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	250000000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	250000000	USD
CY2021Q4	asb	Other Longterm Debtand Capitalized Costs OtherLongtermDebtandCapitalizedCosts	839000	USD
CY2020Q4	asb	Other Longterm Debtand Capitalized Costs OtherLongtermDebtandCapitalizedCosts	1663000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	163000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1128000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	1621047000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Branch Of Fhlb Bank Amount Of Advances By Branch FederalHomeLoanBankAdvancesBranchOfFHLBBankAmountOfAdvancesByBranch	1632723000	USD
CY2021Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1870371000	USD
CY2020Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	2182188000	USD
CY2021Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2224633000	USD
CY2020Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2434505000	USD
CY2021Q4	us-gaap	Carrying Value Of Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	448000000	USD
CY2021	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="margin-bottom:3pt;margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The remaining contractual maturity of the securities sold under agreements to repurchase on the consolidated balance sheets as of December 31, 2021 and 2020 are presented in the following table:</span></div><div style="margin-bottom:3pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:68.783%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.958%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.959%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#00a94f;padding:0 1pt"/><td colspan="6" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Overnight and Continuous</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">($ in Thousands)</span></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2021</span></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Repurchase agreements</span></td><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="padding-left:9pt;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> Agency mortgage-related securities</span></div></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">319,412 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">185,901 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Total </span></td><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">319,412 </span></td><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">185,901 </span></td><td style="background-color:#dddddd;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div>
CY2021Q4	asb	Fhlb Weighted Average Coupon Rate FHLBWeightedAverageCouponRate	0.0205
CY2020Q4	asb	Fhlb Weighted Average Coupon Rate FHLBWeightedAverageCouponRate	0.0234
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	1870371000	USD
CY2021Q4	asb	Subsidiary Equity Balance SubsidiaryEquityBalance	4000000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0350
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0330
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0160
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0260
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2100
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2400
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y9M
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y9M
CY2020	asb	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Per Share Fair Value Of Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShareFairValueOfStockOptions	2.39
CY2019	asb	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Per Share Fair Value Of Stock Options ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsPerShareFairValueOfStockOptions	4.00
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6473000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.77
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y2M23D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2005000	USD
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1533000	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	16.58
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	126000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	22.28
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4814000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.72
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y11M15D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	12532000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3264000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	21.00
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y1M17D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	8294000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	9000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	816000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4000000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4000000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4000000	USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	3000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2293000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	20.46
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1229000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.03
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	812000	shares
CY2021	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	21.23
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	75000	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	21.72
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2635000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	19.87
CY2021	asb	Fairvalueofplanassetsasapercentageofnetbenefitobligation Fairvalueofplanassetsasapercentageofnetbenefitobligation	1.90
CY2020	asb	Fairvalueofplanassetsasapercentageofnetbenefitobligation Fairvalueofplanassetsasapercentageofnetbenefitobligation	1.71
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	57916000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	33020000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	50560000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12035000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16193000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	15327000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	69951000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	49213000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	65887000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9115000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-25895000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14094000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6247000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3118000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-261000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15362000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-29013000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13833000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85313000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20200000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	79720000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	72199000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	88967000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	12704000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	16347000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4285000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3776000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	31896000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	27896000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	6245000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	9789000	USD
CY2021Q4	asb	Nonaccrual Interest NonaccrualInterest	1374000	USD
CY2020Q4	asb	Nonaccrual Interest NonaccrualInterest	1763000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	61826000	USD
CY2021Q4	asb	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	12954000	USD
CY2020Q4	asb	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	13328000	USD
CY2021Q4	asb	Basis Difference From Equity Securities And Other Investments BasisDifferenceFromEquitySecuritiesAndOtherInvestments	0	USD
CY2020Q4	asb	Basis Difference From Equity Securities And Other Investments BasisDifferenceFromEquitySecuritiesAndOtherInvestments	6329000	USD
CY2021Q4	asb	Other Comprehensive Income Available For Sale Securities Tax Unrealized OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxUnrealized	-1989000	USD
CY2020Q4	asb	Other Comprehensive Income Available For Sale Securities Tax Unrealized OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxUnrealized	0	USD
CY2021Q4	asb	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Plan Amendments Tax Effect Unrealized OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansPlanAmendmentsTaxEffectUnrealized	1308000	USD
CY2020Q4	asb	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Plan Amendments Tax Effect Unrealized OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansPlanAmendmentsTaxEffectUnrealized	9110000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3806000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	997000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	148760000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	178302000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	251000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	148760000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	178051000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	14382000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	10403000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	63113000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	22785000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	21698000	USD
CY2021Q4	asb	Deferred Loan Fee Income DeferredLoanFeeIncome	7848000	USD
CY2020Q4	asb	Deferred Loan Fee Income DeferredLoanFeeIncome	9799000	USD
CY2021Q4	asb	State Income Taxes StateIncomeTaxes	1234000	USD
CY2020Q4	asb	State Income Taxes StateIncomeTaxes	2636000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	116000	USD
CY2021Q4	asb	Deferredtaxliabilitydepreciation Deferredtaxliabilitydepreciation	20705000	USD
CY2020Q4	asb	Deferredtaxliabilitydepreciation Deferredtaxliabilitydepreciation	30188000	USD
CY2021Q4	asb	Purchaseaccounting Purchaseaccounting	11500000	USD
CY2020Q4	asb	Purchaseaccounting Purchaseaccounting	12658000	USD
CY2021Q4	asb	Deferred Tax Liability Basis Difference From Equity Securities And Other Investments DeferredTaxLiabilityBasisDifferenceFromEquitySecuritiesAndOtherInvestments	2597000	USD
CY2020Q4	asb	Deferred Tax Liability Basis Difference From Equity Securities And Other Investments DeferredTaxLiabilityBasisDifferenceFromEquitySecuritiesAndOtherInvestments	0	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	13568000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	667000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1049000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	143544000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	165228000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5216000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	12823000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	251000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	251000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	251000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	251000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	251000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.030
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.039
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.033
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.038
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035
CY2021	asb	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	0.006
CY2020	asb	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	0.009
CY2019	asb	Bank Owned Life Insurance1 BankOwnedLifeInsurance1	0.008
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.018
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.018
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.009
CY2021	asb	Increase Decreasein Tax Reserve Adjustments IncreaseDecreaseinTaxReserveAdjustments	0
CY2020	asb	Increase Decreasein Tax Reserve Adjustments IncreaseDecreaseinTaxReserveAdjustments	0.001
CY2019	asb	Increase Decreasein Tax Reserve Adjustments IncreaseDecreaseinTaxReserveAdjustments	0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.003
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	-0.001
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	-0.137
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2021	asb	Fdi Cpremium FDICpremium	0.005
CY2020	asb	Fdi Cpremium FDICpremium	0.008
CY2019	asb	Fdi Cpremium FDICpremium	0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.196
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.062
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.196
CY2021Q4	asb	Bad Debt Reserve Of Qualified Thrift Lender BadDebtReserveOfQualifiedThriftLender	100000000	USD
CY2021Q4	asb	No Deferred Tax Liability For Aquired Allowance For Bad Debt From Savings Banks NoDeferredTaxLiabilityForAquiredAllowanceForBadDebtFromSavingsBanks	25000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	3000000	USD
CY2021Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	71000000	USD
CY2020Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	72000000	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	11000000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	31000000	USD
CY2021Q4	asb	Forward Commitment Fair Value ForwardCommitmentFairValue	30000	USD
CY2021	asb	Asbc Balancesheetoffsettingofderivativeassetsandliabilitiestabletextblock Asbc_balancesheetoffsettingofderivativeassetsandliabilitiestabletextblock	The interest, commodity and foreign exchange agreements the Corporation has with its commercial customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table:<table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:39.250%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.151%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.326%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.835%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.938%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:29pt"><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="background-color:#00a94f;padding:0 1pt"/><td colspan="6" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets</span></td><td colspan="3" rowspan="2" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Net Amounts Presented on the Consolidated Balance Sheets</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:21pt"><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">($ in Thousands)</span></div></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Gross Amounts Recognized</span></td><td colspan="3" style="background-color:#00a94f;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Derivative Liabilities Offset</span></td><td colspan="3" style="background-color:#00a94f;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Cash Collateral Received</span></td><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Derivative assets</span></div></td><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2021</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">3,567 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(2,143)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(1,313)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">111 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">December 31, 2020</span></td><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">13,441 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(1,936)</span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(10,879)</span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">626 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:15pt"><td colspan="15" style="background-color:#ffffff;padding:0 1pt"/></tr><tr style="height:29pt"><td colspan="3" style="background-color:#00a94f;padding:0 1pt"/><td colspan="3" style="background-color:#00a94f;padding:0 1pt"/><td colspan="6" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets</span></td><td colspan="3" rowspan="2" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Net Amounts Presented on the Consolidated Balance Sheets</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:21pt"><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"> ($ in Thousands)</span></td><td colspan="3" style="background-color:#00a94f;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Gross Amounts Recognized</span></td><td colspan="3" style="background-color:#00a94f;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Derivative Assets Offset</span></td><td colspan="3" style="background-color:#00a94f;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Cash Collateral Pledged </span></td><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Derivative liabilities</span></div></td><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#dddddd;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2021</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">15,620 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(2,143)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(11,357)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">2,120 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#dddddd;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">December 31, 2020</span></td><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">27,951 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(1,936)</span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(25,625)</span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#dddddd;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">390 </span></td><td style="background-color:#dddddd;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table>
CY2021Q4	asb	Lending Related Commitments Fair Value LendingRelatedCommitmentsFairValue	0	USD
CY2020Q4	asb	Lending Related Commitments Fair Value LendingRelatedCommitmentsFairValue	0	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	47776000	USD
CY2019Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	21907000	USD
CY2021	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-8000000	USD
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	7000000	USD
CY2021Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	39776000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	47776000	USD
CY2021	asb	Expense Relatedto Qualified Affordable Housing Projects ExpenseRelatedtoQualifiedAffordableHousingProjects	33000000	USD
CY2020	asb	Expense Relatedto Qualified Affordable Housing Projects ExpenseRelatedtoQualifiedAffordableHousingProjects	23000000	USD
CY2019	asb	Expense Relatedto Qualified Affordable Housing Projects ExpenseRelatedtoQualifiedAffordableHousingProjects	19000000	USD
CY2021Q4	asb	Remaining Investmentin Qualified Affordable Housing Projects RemainingInvestmentinQualifiedAffordableHousingProjects	262000000	USD
CY2020Q4	asb	Remaining Investmentin Qualified Affordable Housing Projects RemainingInvestmentinQualifiedAffordableHousingProjects	268000000	USD
CY2021Q4	asb	Unfunded Equity Contributions Obligation Amount UnfundedEquityContributionsObligationAmount	80000000	USD
CY2020Q4	asb	Unfunded Equity Contributions Obligation Amount UnfundedEquityContributionsObligationAmount	118000000	USD
CY2021Q4	asb	Loans Repurchased Under Make Whole Requests LoansRepurchasedUnderMakeWholeRequests	8000000	USD
CY2020Q4	asb	Loans Repurchased Under Make Whole Requests LoansRepurchasedUnderMakeWholeRequests	10000000	USD
CY2021	asb	Loans Sold To Outside Investors Loss Reimbursement Settlement Paid LoansSoldToOutsideInvestorsLossReimbursementSettlementPaid	114000	USD
CY2021Q4	asb	Loans Sold To Outside Investors Original Amount LoansSoldToOutsideInvestorsOriginalAmount	16100000000	USD
CY2021Q4	asb	Loans Sold To Outside Investors Remaining Outstanding Amount LoansSoldToOutsideInvestorsRemainingOutstandingAmount	6500000000	USD
CY2021Q4	asb	Mortgage Repurchase Reserve MortgageRepurchaseReserve	1000000	USD
CY2020Q4	asb	Mortgage Repurchase Reserve MortgageRepurchaseReserve	2000000	USD
CY2021Q4	asb	Residential Mortgage Loans Sold With Recourse Risk ResidentialMortgageLoansSoldWithRecourseRisk	10000000	USD
CY2020Q4	asb	Residential Mortgage Loans Sold With Recourse Risk ResidentialMortgageLoansSoldWithRecourseRisk	36000000	USD
CY2021Q4	asb	Residential Mortgage Loans Sold With Credit Recourse Risk ResidentialMortgageLoansSoldWithCreditRecourseRisk	24000000	USD
CY2020Q4	asb	Residential Mortgage Loans Sold With Credit Recourse Risk ResidentialMortgageLoansSoldWithCreditRecourseRisk	33000000	USD
CY2021	asb	Fair Value Inputs Closing Ratio FairValueInputsClosingRatio	0.86
CY2021	asb	Visa Restricted Stock Owned At Fair Value VisaRestrictedStockOwnedAtFairValue	77000	shares
CY2020Q1	asb	Visa Restricted Stock Owned At Zero Cost VisaRestrictedStockOwnedAtZeroCost	996	shares
CY2021	asb	Visa Restricted Stock Owned VisaRestrictedStockOwned	77996	shares
CY2021Q4	asb	Visa Class A Shares Current Conversion From Class B VisaClassASharesCurrentConversionFromClassB	126205	shares
CY2021	asb	Equity Securities Without Readily Determinable Fair Value Additions Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAdditionsAnnualAmount	264000	USD
CY2021	asb	Equity Securities Without Readily Determinable Fair Value Sales Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueSalesAnnualAmount	-33000	USD
CY2021	asb	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	1523000	USD
CY2020	asb	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	1256000	USD
CY2021	asb	Equity Securities Without Readily Determinable Fair Value Donations Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDonationsAnnualAmount	-134000	USD
CY2021Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	248000000	USD
CY2020Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	279000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	17111000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	18358000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	15202000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	333883000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	288413000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	311587000	USD
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	115212000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	111291000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	111091000	USD
CY2021	asb	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	849000	USD
CY2020	asb	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	732000	USD
CY2019	asb	Unvested Share Based Payment Awards UnvestedShareBasedPaymentAwards	713000	USD
CY2021	us-gaap	Undistributed Earnings UndistributedEarnings	217822000	USD
CY2020	us-gaap	Undistributed Earnings UndistributedEarnings	176390000	USD
CY2019	us-gaap	Undistributed Earnings UndistributedEarnings	199784000	USD
CY2021	asb	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	216299000	USD
CY2020	asb	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	175134000	USD
CY2019	asb	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	198424000	USD
CY2019	asb	Undistributed Earnings Allocated To Unvested Share Based Payment Awards UndistributedEarningsAllocatedToUnvestedShareBasedPaymentAwards	1360000	USD
CY2021	asb	Undistributed Earnings Allocations UndistributedEarningsAllocations	217822000	USD
CY2020	asb	Undistributed Earnings Allocations UndistributedEarningsAllocations	176390000	USD
CY2019	asb	Undistributed Earnings Allocations UndistributedEarningsAllocations	199784000	USD
CY2021	asb	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-115212000	USD
CY2020	asb	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-111291000	USD
CY2019	asb	Distributed Earnings To Common Shareholders Basic DistributedEarningsToCommonShareholdersBasic	-111091000	USD
CY2021	asb	Undistributed Earnings Basic UndistributedEarningsBasic	216299000	USD
CY2020	asb	Undistributed Earnings Basic UndistributedEarningsBasic	175134000	USD
CY2019	asb	Undistributed Earnings Basic UndistributedEarningsBasic	198424000	USD
CY2021	asb	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	331510000	USD
CY2020	asb	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	286425000	USD
CY2019	asb	Common Shareholders Earnings Basic CommonShareholdersEarningsBasic	309514000	USD
CY2021	asb	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-115212000	USD
CY2020	asb	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-111291000	USD
CY2019	asb	Distributed Earnings To Common Shareholders Diluted DistributedEarningsToCommonShareholdersDiluted	-111091000	USD
CY2021	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	216299000	USD
CY2020	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	175134000	USD
CY2019	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	198424000	USD
CY2021	asb	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	331510000	USD
CY2020	asb	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	286425000	USD
CY2019	asb	Common Shareholders Earnings Diluted CommonShareholdersEarningsDiluted	309514000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	150773000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	153005000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	160534000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1214000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	637000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1398000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151987000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	153642000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	161932000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	725855000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	762957000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	835674000	USD
CY2021	asb	Netintersegmentinterestincomeexpense Netintersegmentinterestincomeexpense	0	USD
CY2020	asb	Netintersegmentinterestincomeexpense Netintersegmentinterestincomeexpense	0	USD
CY2019	asb	Netintersegmentinterestincomeexpense Netintersegmentinterestincomeexpense	0	USD
CY2021	asb	Segmentnetinterestincome Segmentnetinterestincome	725855000	USD
CY2020	asb	Segmentnetinterestincome Segmentnetinterestincome	762957000	USD
CY2019	asb	Segmentnetinterestincome Segmentnetinterestincome	835674000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	332364000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	514056000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	380824000	USD
CY2021	us-gaap	Revenues Revenues	1058219000	USD
CY2020	us-gaap	Revenues Revenues	1277012000	USD
CY2019	us-gaap	Revenues Revenues	1216498000	USD
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-88011000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	174006000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	16000000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	709924000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	776034000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	793988000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	436307000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	326972000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	406509000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	85313000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20200000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	79720000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	350994000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	306771000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	326790000	USD
CY2021	asb	Allocated Goodwill Segment AllocatedGoodwillSegment	1104992000	USD
CY2020	asb	Allocated Goodwill Segment AllocatedGoodwillSegment	1109300000	USD
CY2019	asb	Allocated Goodwill Segment AllocatedGoodwillSegment	1176230000	USD
CY2020	asb	Tax Benefit From Tax Planning Strategies TaxBenefitFromTaxPlanningStrategies	63000000	USD
CY2021	asb	Noninterest Income In Scopeof Topic606 NoninterestIncomeInScopeofTopic606	212278000	USD
CY2020	asb	Noninterest Income In Scopeof Topic606 NoninterestIncomeInScopeofTopic606	246077000	USD
CY2019	asb	Noninterest Income In Scopeof Topic606 NoninterestIncomeInScopeofTopic606	288247000	USD
CY2021	asb	Noninterest Income Outsideof Scopeof Topic606 NoninterestIncomeOutsideofScopeofTopic606	120086000	USD
CY2020	asb	Noninterest Income Outsideof Scopeof Topic606 NoninterestIncomeOutsideofScopeofTopic606	267979000	USD
CY2019	asb	Noninterest Income Outsideof Scopeof Topic606 NoninterestIncomeOutsideofScopeofTopic606	92577000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	332364000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	514056000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	380824000	USD

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$ASB
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2021 Q4 Form 10-K Financial Statement

#000000778922000007 Filed on February 08, 2022

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$ASB ASSOCIATED BANC-CORP Stock $asb

2021 Q4 Form 10-K Financial Statement

#000000778922000007 Filed on February 08, 2022

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$ASB
ASSOCIATED BANC-CORP Stock $asb