$ABG
ASBURY AUTOMOTIVE GROUP INC Stock $abg

$abg Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000114498022000079 Filed on March 01, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$2.655B	$9.838B	$2.234B
YoY Change	18.84%	37.94%	17.95%
Cost Of Revenue	$2.113B	$7.936B	$1.862B
YoY Change	13.47%	34.31%	16.91%
Gross Profit	$542.3M	$1.902B	$372.3M
YoY Change	45.66%	55.48%	23.44%
Gross Profit Margin	20.43%	19.34%	16.67%
Selling, General & Admin	$295.7M	$1.074B	$228.5M
YoY Change	29.41%	37.34%	10.87%
% of Gross Profit	54.53%	56.46%	61.38%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$11.30M	$41.90M	$9.500M
YoY Change	18.95%	8.83%	0.0%
% of Gross Profit	2.08%	2.2%	2.55%
Operating Expenses	$306.2M	$1.074B	$237.8M
YoY Change	28.76%	37.34%	10.4%
Operating Profit	$236.1M	$791.8M	$134.5M
YoY Change	75.54%	113.54%	56.03%
Interest Expense	-$52.40M	$102.1M	-$18.60M
YoY Change	181.72%	-237.23%	-15.07%
% of Operating Profit	-22.19%	12.89%	-13.83%
Other Income/Expense, Net		-$94.10M
YoY Change		187.77%
Pretax Income	$183.7M	$697.7M	$119.8M
YoY Change	53.34%	106.36%	109.44%
Income Tax	$43.20M	$165.3M	$30.70M
% Of Pretax Income	23.52%	23.69%	25.63%
Net Earnings	$140.5M	$532.4M	$89.10M
YoY Change	57.69%	109.28%	104.36%
Net Earnings / Revenue	5.29%	5.41%	3.99%
Basic Earnings Per Share		$26.75
Diluted Earnings Per Share	$6.416M	$26.49	$4.617M
COMMON SHARES
Basic Shares Outstanding	19.34M shares	19.90M shares	19.29M shares
Diluted Shares Outstanding		20.10M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$189.9M	$189.9M	$1.400M
YoY Change	13464.29%	13464.29%	-60.0%
Cash & Equivalents	$178.9M	$178.9M	$1.400M
Short-Term Investments	$11.00M	$11.00M
Other Short-Term Assets	$203.7M	$764.1M	$183.8M
YoY Change	10.83%	116.34%	42.48%
Inventory	$718.4M	$718.4M	$875.2M
Prepaid Expenses	$1.500M		$1.100M
Receivables	$0.00	$142.7M	$155.5M
Other Receivables	$114.3M	$114.3M	$0.00
Total Short-Term Assets	$1.929B	$1.929B	$1.406B
YoY Change	37.26%	37.26%	-12.29%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.990B	$2.251B	$956.2M
YoY Change	108.12%	76.74%	5.11%
Goodwill	$2.272B		$562.2M
YoY Change	304.07%		178.73%
Intangibles
YoY Change
Long-Term Investments	$123.5M	$123.5M
YoY Change
Other Assets	$22.20M	$91.30M	$9.600M
YoY Change	131.25%	851.04%	-4.0%
Total Long-Term Assets	$6.073B	$6.073B	$2.271B
YoY Change	167.47%	167.47%	73.5%
TOTAL ASSETS
Total Short-Term Assets	$1.929B	$1.929B	$1.406B
Total Long-Term Assets	$6.073B	$6.073B	$2.271B
Total Assets	$8.003B	$8.003B	$3.676B
YoY Change	117.68%	117.68%	26.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$163.9M	$163.9M	$97.60M
YoY Change	67.93%	67.93%	19.46%
Accrued Expenses	$7.000M	$286.8M	$2.800M
YoY Change	150.0%	82.91%	-15.15%
Deferred Revenue	$181.5M		$0.00
YoY Change			-100.0%
Short-Term Debt	$564.5M	$710.8M	$702.2M
YoY Change	-19.61%	-14.86%	-10.89%
Long-Term Debt Due	$62.50M	$62.50M	$36.60M
YoY Change	70.77%	70.77%	12.96%
Total Short-Term Liabilities	$1.598B	$1.598B	$1.223B
YoY Change	30.62%	30.62%	-1.89%
LONG-TERM LIABILITIES
Long-Term Debt	$3.520B	$3.520B	$1.165B
YoY Change	202.1%	202.1%	28.47%
Other Long-Term Liabilities	$60.70M	$769.0M	$50.90M
YoY Change	19.25%	121.23%	57.1%
Total Long-Term Liabilities	$60.70M	$4.289B	$50.90M
YoY Change	19.25%	183.52%	57.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.598B	$1.598B	$1.223B
Total Long-Term Liabilities	$60.70M	$4.289B	$50.90M
Total Liabilities	$1.659B	$5.887B	$1.274B
YoY Change	30.17%	112.47%	-0.4%
SHAREHOLDERS EQUITY
Retained Earnings	$1.881B		$1.349B
YoY Change	39.47%		23.24%
Common Stock	$1.279B		$595.9M
YoY Change	114.63%		2.16%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.044B		$1.034B
YoY Change	1.01%		0.5%
Treasury Stock Shares	21.91M shares		21.85M shares
Shareholders Equity	$2.116B	$2.116B	$905.5M
YoY Change
Total Liabilities & Shareholders Equity	$8.003B	$8.003B	$3.676B
YoY Change	117.68%	117.68%	26.28%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$140.5M	$532.4M	$89.10M
YoY Change	57.69%	109.28%	104.36%
Depreciation, Depletion And Amortization	$11.30M	$41.90M	$9.500M
YoY Change	18.95%	8.83%	0.0%
Cash From Operating Activities	$205.1M	$1.164B	$27.30M
YoY Change	651.28%	78.34%	1200.0%
INVESTING ACTIVITIES
Capital Expenditures	-$24.80M	-$299.1M	-$19.00M
YoY Change	30.53%	512.91%	-34.26%
Acquisitions		$3.660B
YoY Change		283.65%
Other Investing Activities	-$3.644B	-$3.618B	$16.30M
YoY Change	-22453.37%	368.64%	117.33%
Cash From Investing Activities	-$3.668B	-$3.917B	-$2.700M
YoY Change	135766.67%	377.22%	-87.38%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$656.5M
YoY Change		-12972.55%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	3.312B	$2.931B	-27.30M
YoY Change	-12230.4%	1663.42%	-230.0%
NET CHANGE
Cash From Operating Activities	205.1M	$1.164B	27.30M
Cash From Investing Activities	-3.668B	-$3.917B	-2.700M
Cash From Financing Activities	3.312B	$2.931B	-27.30M
Net Change In Cash	-151.7M	$177.5M	-2.700M
YoY Change	5518.52%	-8552.38%	-258.82%
FREE CASH FLOW
Cash From Operating Activities	$205.1M	$1.164B	$27.30M
Capital Expenditures	-$24.80M	-$299.1M	-$19.00M
Free Cash Flow	$229.9M	$1.463B	$46.30M
YoY Change	396.54%	108.58%	49.35%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
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CY2021Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
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CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligationsCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligationsCurrent
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#LongTermDebtAndCapitalLeaseObligations
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CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-31262
CY2021	dei	Entity File Number EntityFileNumber	001-31262
CY2021	dei	Entity Registrant Name EntityRegistrantName	ASBURY AUTOMOTIVE GROUP, INC
CY2021	dei	Entity Registrant Name EntityRegistrantName	ASBURY AUTOMOTIVE GROUP, INC
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	01-0609375
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	2905 Premiere Parkway NW,
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CY2021	dei	City Area Code CityAreaCode	770
CY2021	dei	Local Phone Number LocalPhoneNumber	418-8200
CY2021	dei	Local Phone Number LocalPhoneNumber	418-8200
CY2021	dei	Security12b Title Security12bTitle	Common stock, $0.01 par value per share
CY2021	dei	Trading Symbol TradingSymbol	ABG
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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CY2021	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	23000000.0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	7100000	USD
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	5400000	USD
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-9200000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-800000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	791800000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	370800000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	325000000.0	USD
CY2020	abg	Floor Plan Interest Expense FloorPlanInterestExpense	17700000	USD
CY2019	abg	Floor Plan Interest Expense FloorPlanInterestExpense	37900000	USD
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	93900000	USD
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	56700000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	54900000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-20600000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8000000.0	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	62300000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	11700000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-94100000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-32700000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-81100000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	697700000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	338100000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	243900000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165300000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	83700000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59500000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	532400000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	254400000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184400000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	26.75
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.25
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.65
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	26.49
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.18
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.55
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19900000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19200000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19100000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	100000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	100000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	100000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	100000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	100000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20100000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19300000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	19300000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	532400000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	254400000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	6300000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-3600000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-4400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	200000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	1600000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-1100000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	537300000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	251700000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	181100000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	473200000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184400000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-1100000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3300000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	181100000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12500000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	5200000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	15300000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	646300000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	254400000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-900000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2700000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	251700000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12600000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	5100000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	905500000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	532400000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	200000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	1600000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	4700000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	537300000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	16200000	USD
CY2021	abg	Proceeds From Issuance Of Common Stock Secondary Offering Value ProceedsFromIssuanceOfCommonStockSecondaryOfferingValue	666900000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	10400000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2115500000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	532400000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	254400000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184400000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	41900000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	38500000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	36200000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	16200000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	12600000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	12500000	USD
CY2021	abg	Deferred Income Tax Expense Benefit Continuing Operations And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingOperationsAndDiscontinuedOperations	31200000	USD
CY2020	abg	Deferred Income Tax Expense Benefit Continuing Operations And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingOperationsAndDiscontinuedOperations	9500000	USD
CY2019	abg	Deferred Income Tax Expense Benefit Continuing Operations And Discontinued Operations DeferredIncomeTaxExpenseBenefitContinuingOperationsAndDiscontinuedOperations	5400000	USD
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	23000000.0	USD
CY2019	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	7100000	USD
CY2021	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	1000000.0	USD
CY2020	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2019	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-20600000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	20900000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	21800000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold Depreciation And Amortization CostOfGoodsAndServicesSoldDepreciationAndAmortization	23600000	USD
CY2021	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	8000000.0	USD
CY2020	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	62300000	USD
CY2019	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	11700000	USD
CY2021	abg	Changein Operating Lease Rightof Use Asset ChangeinOperatingLeaseRightofUseAsset	22300000	USD
CY2020	abg	Changein Operating Lease Rightof Use Asset ChangeinOperatingLeaseRightofUseAsset	21500000	USD
CY2019	abg	Changein Operating Lease Rightof Use Asset ChangeinOperatingLeaseRightofUseAsset	19400000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	800000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1300000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4800000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	48500000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	33200000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	3600000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-35300000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	19100000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6000000.0	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-670500000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-428000000.0	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-212100000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	227100000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	183300000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	173700000	USD
CY2021	abg	Increase Decrease In Floor Plan Notes Payable Trade IncreaseDecreaseInFloorPlanNotesPayableTrade	-27600000	USD
CY2020	abg	Increase Decrease In Floor Plan Notes Payable Trade IncreaseDecreaseInFloorPlanNotesPayableTrade	-64500000	USD
CY2019	abg	Increase Decrease In Floor Plan Notes Payable Trade IncreaseDecreaseInFloorPlanNotesPayableTrade	38200000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-3600000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	0	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	0	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	39200000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	121000000.0	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	10700000	USD
CY2021	abg	Operating Lease Liability Operating Activities OperatingLeaseLiabilityOperatingActivities	20600000	USD
CY2020	abg	Operating Lease Liability Operating Activities OperatingLeaseLiabilityOperatingActivities	20900000	USD
CY2019	abg	Operating Lease Liability Operating Activities OperatingLeaseLiabilityOperatingActivities	19700000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	13200000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-17200000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-2900000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1163700000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	652500000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	349800000	USD
CY2021	abg	Payments To Acquire Property Plant And Equipment Excluding Real Estate PaymentsToAcquirePropertyPlantAndEquipmentExcludingRealEstate	74200000	USD
CY2020	abg	Payments To Acquire Property Plant And Equipment Excluding Real Estate PaymentsToAcquirePropertyPlantAndEquipmentExcludingRealEstate	46500000	USD
CY2019	abg	Payments To Acquire Property Plant And Equipment Excluding Real Estate PaymentsToAcquirePropertyPlantAndEquipmentExcludingRealEstate	57600000	USD
CY2021	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	7800000	USD
CY2020	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	2300000	USD
CY2019	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	9200000	USD
CY2021	abg	Payments To Acquire Previously Leased Real Estate PaymentsToAcquirePreviouslyLeasedRealEstate	217100000	USD
CY2020	abg	Payments To Acquire Previously Leased Real Estate PaymentsToAcquirePreviouslyLeasedRealEstate	0	USD
CY2019	abg	Payments To Acquire Previously Leased Real Estate PaymentsToAcquirePreviouslyLeasedRealEstate	4900000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3660400000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	954100000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	210000000.0	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	21300000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	177900000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	39100000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1100000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2021	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	400000	USD
CY2020	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	0	USD
CY2019	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	0	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	800000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	400000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	21500000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	4200000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	15000000.0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3917000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-820800000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-227600000	USD
CY2021	abg	Proceeds From Floor Plan Borrowings Non Trade ProceedsFromFloorPlanBorrowingsNonTrade	5042800000	USD
CY2020	abg	Proceeds From Floor Plan Borrowings Non Trade ProceedsFromFloorPlanBorrowingsNonTrade	4312000000	USD
CY2019	abg	Proceeds From Floor Plan Borrowings Non Trade ProceedsFromFloorPlanBorrowingsNonTrade	4318600000	USD
CY2021	abg	Floor Plan Borrowings Acquisitions FloorPlanBorrowingsAcquisitions	214500000	USD
CY2020	abg	Floor Plan Borrowings Acquisitions FloorPlanBorrowingsAcquisitions	131600000	USD
CY2019	abg	Floor Plan Borrowings Acquisitions FloorPlanBorrowingsAcquisitions	55300000	USD
CY2021	abg	Repayments Of Floor Plan Payables Non Trade RepaymentsOfFloorPlanPayablesNonTrade	5357500000	USD
CY2020	abg	Repayments Of Floor Plan Payables Non Trade RepaymentsOfFloorPlanPayablesNonTrade	4467300000	USD
CY2019	abg	Repayments Of Floor Plan Payables Non Trade RepaymentsOfFloorPlanPayablesNonTrade	4513300000	USD
CY2021	abg	Repayments Of Floor Plan Payables Non Trade Divestitures RepaymentsOfFloorPlanPayablesNonTradeDivestitures	800000	USD
CY2020	abg	Repayments Of Floor Plan Payables Non Trade Divestitures RepaymentsOfFloorPlanPayablesNonTradeDivestitures	60400000	USD
CY2019	abg	Repayments Of Floor Plan Payables Non Trade Divestitures RepaymentsOfFloorPlanPayablesNonTradeDivestitures	14100000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2274000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1875300000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	97700000	USD
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	41500000	USD
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1622500000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	48400000	USD
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	439000000.0	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	270000000.0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2021	abg	Sale Leaseback Transaction SaleLeasebackTransaction	0	USD
CY2020	abg	Sale Leaseback Transaction SaleLeasebackTransaction	7300000	USD
CY2019	abg	Sale Leaseback Transaction SaleLeasebackTransaction	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	666900000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	26200000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4700000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2300000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10400000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5100000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20500000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2930800000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	166200000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-127000000.0	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	177500000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2100000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-4800000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3500000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8300000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	178900000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3500000	USD
CY2021Q4	abg	Number Of Franchises NumberOfFranchises	205	franchise
CY2021Q4	abg	Number Of Vehicle Brands NumberOfVehicleBrands	31	VehicleBrands
CY2021Q4	abg	Number Of Dealership Locations NumberOfDealershipLocations	155	dealership_location
CY2021Q4	abg	Number Of Collision Repair Centers NumberOfCollisionRepairCenters	35	CollisionRepairCenters
CY2021Q4	abg	Stand Alone Used Vehicle Dealerships StandAloneUsedVehicleDealerships	7	dealership_location
CY2021Q4	abg	Used Vehicle Wholesale Business UsedVehicleWholesaleBusiness	1	business
CY2021Q4	abg	Number Of Auto Auctions NumberOfAutoAuctions	1	dealership_location
CY2021Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	15	states
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:9pt;margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the periods presented. Actual results could differ materially from these estimates. Estimates and assumptions are reviewed quarterly, and the effects of any revisions are </span></div>reflected in the consolidated financial statements in the period they are determined to be necessary. Significant estimates made in the accompanying Consolidated Financial Statements include, but are not limited to, those relating to inventory valuation reserves, reserves for chargebacks against revenue recognized from the sale of finance and insurance products, reserves for self-insurance programs, certain assumptions related to intangible and long-lived assets, and reserves for certain legal or similar proceedings relating to our business operations.
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2500000	USD
CY2021	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	700000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	us-gaap	Advertising Expense AdvertisingExpense	30700000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	25500000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	34400000	USD
CY2021	abg	Advertising Credits And Volume Discounts AdvertisingCreditsAndVolumeDiscounts	22400000	USD
CY2020	abg	Advertising Credits And Volume Discounts AdvertisingCreditsAndVolumeDiscounts	19600000	USD
CY2019	abg	Advertising Credits And Volume Discounts AdvertisingCreditsAndVolumeDiscounts	21100000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:9pt;margin-top:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Business and Credit Concentration Risk</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments, which potentially subject us to a concentration of credit risk, consist principally of cash deposits and investments. We maintain cash balances at financial institutions with strong credit ratings. Generally, amounts maintained with these financial institutions are in excess of FDIC insurance limits. In addition, we maintain a diverse investment portfolio across various asset categories and limit our exposure through the kind, quality and concentration of these investments. As of December 31, 2021, the Company had total investments of $134.5 million.</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have substantial debt service obligations. As of December 31, 2021, we had total debt of $3.61 billion, which excludes floor plan notes payable, debt issuance costs, and the debt premium on the 4.5% Senior Notes (the "4.5% Notes") and 4.75% Senior Notes (the "4.75% Notes") due 2028 and 2030, respectively. In addition, we and our subsidiaries have the ability to obtain additional debt from time to time to finance acquisitions, real property purchases, capital expenditures, share repurchases or for other purposes, although such borrowings are subject to the restrictions contained in the third amended and restated senior secured credit agreement with Bank of America, N.A. ("Bank of America"), as administrative agent, and the other lenders party thereto (the "2019 Senior Credit Facility"), the indentures governing our 4.5% Notes, 4.625% Notes, 4.75% Notes and 5.0% Notes (the "Indentures"), and our other debt instruments. We will have substantial debt service obligations, consisting of required cash payments of principal and interest, for the foreseeable future. </span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are subject to operating and financial restrictions and covenants in certain of our leases and in our debt instruments, including the 2019 Senior Credit Facility, the Indentures, and the credit agreements covering our mortgage obligations. These agreements contain restrictions on, among other things, our ability to incur additional indebtedness, to create liens or other encumbrances, and to make certain payments (including dividends and repurchases of our shares and investments). These agreements may also require us to maintain compliance with certain financial and other ratios. Our failure to comply with any of these covenants in the future would constitute a default under the relevant agreement, which would, depending on the relevant agreement, (i) entitle the creditors under such agreement to terminate our ability to borrow under the relevant agreement and accelerate our obligations to repay outstanding borrowings; (ii) require us to apply our available cash to repay these borrowings; (iii) entitle the creditors under such agreement to foreclose on the property securing the relevant indebtedness; and/or (iv) prevent us from making debt service payments on certain of our other indebtedness, any of which would have a material adverse effect on our business, financial condition or results of operations. In many cases, a default under one of our debt or mortgage agreements could trigger cross-default provisions in one or more of our other debt or mortgages.</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">A number of our dealerships are located on properties that we lease. Each of the leases governing such properties has certain covenants with which we must comply. If we fail to comply with the covenants under our leases, the respective landlords could terminate the leases and seek damages from us.</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Concentrations of credit risk with respect to contracts-in-transit and accounts receivable are limited primarily to automotive manufacturers and financial institutions. Credit risk arising from receivables with commercial customers is minimal due to the large number of customers comprising our customer base.</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-indent:15.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">A significant portion of our new vehicle sales are derived from a limited number of automotive manufacturers. For the year ended December 31, 2021, manufacturers representing 5% or more of our revenues from new vehicle sales were as follows:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> </span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.783%"><tr><td style="width:1.0%"/><td style="width:83.492%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.555%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.553%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Manufacturer (Vehicle Brands):</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">% of Total<br/>New Vehicle<br/>Revenues</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Toyota Motor Sales, U.S.A., Inc. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">(Toyota and Lexus)</span></div></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">American Honda Motor Co., Inc. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">(Honda and Acura)</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">19 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Mercedes-Benz USA, LLC (</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Mercedes-Benz and Sprinter</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">)</span></div></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Ford Motor Company </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">(Ford and Lincoln)</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Nissan North America, Inc. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">(Nissan and Infiniti)</span></div></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">BMW of North America, LLC </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">(BMW and MINI)</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr></table></div>No other manufacturers individually accounted for more than 5% of our total new vehicle revenue for the year ended December 31, 2021.
CY2021Q4	us-gaap	Investments Investments	134500000	USD
CY2021Q4	abg	Long Term Debt And Lease Obligations Current And Noncurrent LongTermDebtAndLeaseObligationsCurrentAndNoncurrent	3610000000	USD
CY2021	abg	Entity Wide Revenues Major Brands Disclosure Percentage Threshold EntityWideRevenuesMajorBrandsDisclosurePercentageThreshold	0.05
CY2021	abg	Entity Wide Revenues Major Brands Disclosure Percentage Threshold EntityWideRevenuesMajorBrandsDisclosurePercentageThreshold	0.05
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	200000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9837700000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7131800000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7210300000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	17100000	USD
CY2020	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	17100000	USD
CY2020	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	20400000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	20400000	USD
CY2021	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	21800000	USD
CY2021	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	28600000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	27200000	USD
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	647800000	USD
CY2020Q1	abg	Terminationof Business Acquisition Paymentof Liquidated Damages TerminationofBusinessAcquisitionPaymentofLiquidatedDamages	10000000	USD
CY2020Q3	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	12	franchise
CY2020Q3	abg	Numberof Dealership Locations Acquired NumberofDealershipLocationsAcquired	8	dealership_location
CY2020Q3	abg	Number Of Collision Centers Acquired NumberOfCollisionCentersAcquired	2	collision_center
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	62300000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	11700000	USD
CY2021Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	231400000	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	156700000	USD
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1600000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1200000	USD
CY2021Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	229800000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	155500000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	718400000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	875200000	USD
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	7700000	USD
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	6700000	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Inventory1 DisposalGroupIncludingDiscontinuedOperationInventory1	24100000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Inventory1 DisposalGroupIncludingDiscontinuedOperationInventory1	0	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Loaners DisposalGroupIncludingDiscontinuedOperationLoaners	4600000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Loaners DisposalGroupIncludingDiscontinuedOperationLoaners	0	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	110800000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	28300000	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Operating Lease Rou Assets DisposalGroupIncludingDiscontinuedOperationOperatingLeaseROUAssets	7100000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Operating Lease Rou Assets DisposalGroupIncludingDiscontinuedOperationOperatingLeaseROUAssets	0	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Goodwill1 DisposalGroupIncludingDiscontinuedOperationGoodwill1	118500000	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Goodwill1 DisposalGroupIncludingDiscontinuedOperationGoodwill1	0	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Intangible Assets DisposalGroupIncludingDiscontinuedOperationIntangibleAssets	110000000.0	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Intangible Assets DisposalGroupIncludingDiscontinuedOperationIntangibleAssets	0	USD
CY2021Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	375100000	USD
CY2020Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	28300000	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Floor Plan Notes Payable Non Trade DisposalGroupIncludingDiscontinuedOperationFloorPlanNotesPayableNonTrade	9100000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Floor Plan Notes Payable Non Trade DisposalGroupIncludingDiscontinuedOperationFloorPlanNotesPayableNonTrade	0	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Loaners Liabilities DisposalGroupIncludingDiscontinuedOperationLoanersLiabilities	4600000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Loaners Liabilities DisposalGroupIncludingDiscontinuedOperationLoanersLiabilities	0	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Current Maturitiesof Longterm Debt DisposalGroupIncludingDiscontinuedOperationCurrentMaturitiesofLongtermDebt	0	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Current Maturitiesof Longterm Debt DisposalGroupIncludingDiscontinuedOperationCurrentMaturitiesofLongtermDebt	500000	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Operating Leases Current Maturities DisposalGroupIncludingDiscontinuedOperationOperatingLeasesCurrentMaturities	2700000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Operating Leases Current Maturities DisposalGroupIncludingDiscontinuedOperationOperatingLeasesCurrentMaturities	0	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Longterm Debt DisposalGroupIncludingDiscontinuedOperationLongtermDebt	0	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Longterm Debt DisposalGroupIncludingDiscontinuedOperationLongtermDebt	8400000	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Operating Lease Liabilities DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities	4400000	USD
CY2020Q4	abg	Disposal Group Including Discontinued Operation Operating Lease Liabilities DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities	0	USD
CY2021Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	20800000	USD
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	8900000	USD
CY2021Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	354300000	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	19400000	USD
CY2021	abg	Number Of Franchise Sold NumberOfFranchiseSold	1	franchise
CY2021	abg	Number Of Dealership Locations Sold NumberOfDealershipLocationsSold	1	dealership_location
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	8000000	USD
CY2020	abg	Number Of Franchise Sold NumberOfFranchiseSold	9	franchise
CY2020	abg	Number Of Dealership Locations Sold NumberOfDealershipLocationsSold	8	dealership_location
CY2020	abg	Numberof Collision Centers Sold NumberofCollisionCentersSold	1	collision_center
CY2021Q4	abg	Other Assets Current Service Loaner Vehicles OtherAssetsCurrentServiceLoanerVehicles	150300000	USD
CY2020Q4	abg	Other Assets Current Service Loaner Vehicles OtherAssetsCurrentServiceLoanerVehicles	136000000.0	USD
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	27200000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	20400000	USD
CY2021Q4	us-gaap	Prepaid Taxes PrepaidTaxes	12700000	USD
CY2020Q4	us-gaap	Prepaid Taxes PrepaidTaxes	13400000	USD
CY2021Q4	us-gaap	Deposits Assets Current DepositsAssetsCurrent	4600000	USD
CY2020Q4	us-gaap	Deposits Assets Current DepositsAssetsCurrent	7100000	USD
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	1500000	USD
CY2020Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	1100000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	7400000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	5800000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	203700000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	183800000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	134300000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	600000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	400000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	134500000	USD
CY2021Q4	us-gaap	Interest Receivable InterestReceivable	600000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	11000000.0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	11000000.0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	44600000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	44800000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	300000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	300000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	55900000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	56100000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	134300000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	134500000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	29300000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	400000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	29300000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	400000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	2317900000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1251800000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	327900000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	295600000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1990000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	956200000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	8400000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	14600000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	800000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	400000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	600000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	41900000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	38500000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	36200000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	201700000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	364300000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	9100000	USD
CY2020	abg	Goodwill Reclassified From To Assets Held For Sale GoodwillReclassifiedFromToAssetsHeldForSale	5300000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	562200000	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1828600000	USD
CY2021	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	600000	USD
CY2021	abg	Goodwill Reclassified From To Assets Held For Sale GoodwillReclassifiedFromToAssetsHeldForSale	-118500000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	2271700000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	537700000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q1	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	23000000	USD
CY2021Q4	abg	Floor Plan Notes Payable Trade Gross FloorPlanNotesPayableTradeGross	39300000	USD
CY2020Q4	abg	Floor Plan Notes Payable Trade Gross FloorPlanNotesPayableTradeGross	71700000	USD
CY2021Q4	abg	Floor Plan Notes Payable Trade Offsets FloorPlanNotesPayableTradeOffsets	2000000.0	USD
CY2020Q4	abg	Floor Plan Notes Payable Trade Offsets FloorPlanNotesPayableTradeOffsets	6800000	USD
CY2021Q4	abg	Floor Plan Notes Payable Trade FloorPlanNotesPayableTrade	37300000	USD
CY2020Q4	abg	Floor Plan Notes Payable Trade FloorPlanNotesPayableTrade	64900000	USD
CY2021Q4	abg	Floor Plan Notes Payable Non Trade New Gross FloorPlanNotesPayableNonTradeNewGross	314700000	USD
CY2020Q4	abg	Floor Plan Notes Payable Non Trade New Gross FloorPlanNotesPayableNonTradeNewGross	715900000	USD
CY2021Q4	abg	Floor Plan Notes Payable Non Trade Used Gross FloorPlanNotesPayableNonTradeUsedGross	294000000.0	USD
CY2020Q4	abg	Floor Plan Notes Payable Non Trade Used Gross FloorPlanNotesPayableNonTradeUsedGross	0	USD
CY2021Q4	abg	Floor Plan Notes Payable Non Trade Offsets FloorPlanNotesPayableNonTradeOffsets	81500000	USD
CY2020Q4	abg	Floor Plan Notes Payable Non Trade Offsets FloorPlanNotesPayableNonTradeOffsets	78600000	USD
CY2021Q4	abg	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	527200000	USD
CY2020Q4	abg	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	637300000	USD
CY2020Q4	abg	Floor Plan Notes Payable Non Trade Liabilities Associatedwith Assets Heldfor Sale FloorPlanNotesPayableNonTradeLiabilitiesAssociatedwithAssetsHeldforSale	9100000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	163900000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	97600000	USD
CY2021Q4	abg	Notes Payable Loaner Vehicle Current NotesPayableLoanerVehicleCurrent	146300000	USD
CY2020Q4	abg	Notes Payable Loaner Vehicle Current NotesPayableLoanerVehicleCurrent	132700000	USD
CY2021Q4	abg	Taxes Payable Current Excluding Income Taxes Payable TaxesPayableCurrentExcludingIncomeTaxesPayable	125700000	USD
CY2020Q4	abg	Taxes Payable Current Excluding Income Taxes Payable TaxesPayableCurrentExcludingIncomeTaxesPayable	69100000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	118500000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	43700000	USD
CY2021Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	27900000	USD
CY2020Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	24300000	USD
CY2021Q4	abg	Accrued Finance And Insurance Chargebacks Current AccruedFinanceAndInsuranceChargebacksCurrent	31500000	USD
CY2020Q4	abg	Accrued Finance And Insurance Chargebacks Current AccruedFinanceAndInsuranceChargebacksCurrent	23300000	USD
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	24300000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	16400000	USD
CY2021Q4	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	23200000	USD
CY2020Q4	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	8700000	USD
CY2021Q4	abg	Deferred Tax Liabilities Tax Deferred Expense Reserves And Accruals Unearned Premiums DeferredTaxLiabilitiesTaxDeferredExpenseReservesAndAccrualsUnearnedPremiums	13000000.0	USD
CY2020Q4	abg	Deferred Tax Liabilities Tax Deferred Expense Reserves And Accruals Unearned Premiums DeferredTaxLiabilitiesTaxDeferredExpenseReservesAndAccrualsUnearnedPremiums	0	USD
CY2021Q4	abg	Accrued Licenses And Regulatory Fees Current AccruedLicensesAndRegulatoryFeesCurrent	9600000	USD
CY2020Q4	abg	Accrued Licenses And Regulatory Fees Current AccruedLicensesAndRegulatoryFeesCurrent	9600000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	7000000.0	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	2800000	USD
CY2021Q4	us-gaap	Accrued Advertising Current And Noncurrent AccruedAdvertisingCurrentAndNoncurrent	3300000	USD
CY2020Q4	us-gaap	Accrued Advertising Current And Noncurrent AccruedAdvertisingCurrentAndNoncurrent	3200000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	48700000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	19500000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	742900000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	450900000	USD
CY2021Q4	abg	Disposal Group Including Discontinued Operation Loaners Liabilities DisposalGroupIncludingDiscontinuedOperationLoanersLiabilities	4600000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	8400000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	16600000	USD
CY2021Q4	abg	Long Term Debt And Lease Obligations Current And Noncurrent LongTermDebtAndLeaseObligationsCurrentAndNoncurrent	3614500000	USD
CY2020Q4	abg	Long Term Debt And Lease Obligations Current And Noncurrent LongTermDebtAndLeaseObligationsCurrentAndNoncurrent	1212200000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	34700000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	13700000	USD
CY2021Q4	abg	Long Term Debt And Lease Obligations Current And Noncurrent Including Unamortized Premium Discount LongTermDebtAndLeaseObligationsCurrentAndNoncurrentIncludingUnamortizedPremiumDiscount	3582600000	USD
CY2020Q4	abg	Long Term Debt And Lease Obligations Current And Noncurrent Including Unamortized Premium Discount LongTermDebtAndLeaseObligationsCurrentAndNoncurrentIncludingUnamortizedPremiumDiscount	1201800000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	62500000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	36600000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3520100000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1165200000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	53700000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	75900000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	263700000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	142700000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	574300000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2504200000	USD
CY2021Q4	abg	Long Term Debt And Lease Obligations1 LongTermDebtAndLeaseObligations1	3614500000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	3405200000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	1185200000	USD
CY2021Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3502000000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1253900000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	113900000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	64500000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	46300000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	20800000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9800000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8000000.0	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	134700000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	74300000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	54300000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	24800000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9200000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5500000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5800000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	200000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-300000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	30600000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9400000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5200000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165300000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	83700000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59500000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	146500000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	71000000.0	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	51200000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	21000000.0	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	10100000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7800000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	600000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.001
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1300000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.004
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	600000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.002
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-2800000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.004
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1300000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.004
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-100000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	165300000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.237
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	83700000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.248
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59500000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.244
CY2021Q4	abg	Deferred Tax Assets Tax Deferred Expense Deferred Revenue DeferredTaxAssetsTaxDeferredExpenseDeferredRevenue	139400000	USD
CY2020Q4	abg	Deferred Tax Assets Tax Deferred Expense Deferred Revenue DeferredTaxAssetsTaxDeferredExpenseDeferredRevenue	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	11900000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	11500000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4700000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2700000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2300000	USD
CY2021Q4	abg	Deferred Tax Assets Rightof Use Assets DeferredTaxAssetsRightofUseAssets	67200000	USD
CY2020Q4	abg	Deferred Tax Assets Rightof Use Assets DeferredTaxAssetsRightofUseAssets	77800000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	10600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	10200000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	234000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	106500000	USD
CY2021Q4	abg	Deferred Tax Liabilities Intangibleassetamortization DeferredTaxLiabilitiesIntangibleassetamortization	42400000	USD
CY2020Q4	abg	Deferred Tax Liabilities Intangibleassetamortization DeferredTaxLiabilitiesIntangibleassetamortization	23900000	USD
CY2021Q4	abg	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	50700000	USD
CY2020Q4	abg	Deferred Tax Liabilities Depreciation DeferredTaxLiabilitiesDepreciation	39200000	USD
CY2021Q4	abg	Deferred Tax Liabilities Operating Lease Liabilities DeferredTaxLiabilitiesOperatingLeaseLiabilities	65600000	USD
CY2020Q4	abg	Deferred Tax Liabilities Operating Lease Liabilities DeferredTaxLiabilitiesOperatingLeaseLiabilities	76800000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	2000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	0	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	60700000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4200000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1200000	USD
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CY2020Q4	abg	Unclaimed Property UnclaimedProperty	3100000	USD
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CY2020Q4	abg	Deferred Payroll Tax Noncurrent DeferredPayrollTaxNoncurrent	9100000	USD
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CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48400000	USD
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CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1800000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2500000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	2300000	USD
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CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	800000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1300000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4800000	USD
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CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	700000	USD
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CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1500000	USD
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CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2400000	USD
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CY2020	us-gaap	Lease Cost LeaseCost	32800000	USD
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CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	74200000	USD
CY2021Q4	us-gaap	Assets Assets	8002600000	USD
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CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	16200000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3900000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12600000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3200000	USD
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$ABG
ASBURY AUTOMOTIVE GROUP INC Stock $abg

2021 Q4 Form 10-K Financial Statement

#000114498022000079 Filed on March 01, 2022

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$ABG ASBURY AUTOMOTIVE GROUP INC Stock $abg

2021 Q4 Form 10-K Financial Statement

#000114498022000079 Filed on March 01, 2022

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$ABG
ASBURY AUTOMOTIVE GROUP INC Stock $abg