$LAD
Lithia Motors Inc Stock $lad

$lad Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000102312821000022 Filed on February 19, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$3.269B	$2.973B	$3.092B
YoY Change	9.95%	10.0%	15.36%
Cost Of Revenue	$2.770B	$2.531B	$2.626B
YoY Change	9.44%	9.73%	15.3%
Gross Profit	$498.6M	$441.9M	$466.2M
YoY Change	12.83%	11.56%	15.68%
Gross Profit Margin	15.25%	14.86%	15.08%
Selling, General & Admin	$352.3M	$312.8M	$309.0M
YoY Change	12.63%	17.11%	9.48%
% of Gross Profit	70.66%	70.79%	66.28%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$21.50M	$20.10M	$19.60M
YoY Change	6.97%	24.84%	32.43%
% of Gross Profit	4.31%	4.55%	4.2%
Operating Expenses	$373.8M	$332.9M	$309.0M
YoY Change	12.29%	17.55%	9.48%
Operating Profit	$124.8M	$109.0M	$137.6M
YoY Change	14.5%	-3.45%	29.87%
Interest Expense	-$32.90M	-$32.50M	-$31.00M
YoY Change	1.23%	45.09%	51.22%
% of Operating Profit	-26.36%	-29.82%	-22.53%
Other Income/Expense, Net	$4.900M	$3.400M	$2.400M
YoY Change	44.12%	325.0%	113.33%
Pretax Income	$94.70M	$78.00M	$109.0M
YoY Change	21.41%	-14.66%	25.95%
Income Tax	$26.70M	$33.90M	$15.90M
% Of Pretax Income	28.19%	43.46%	14.59%
Net Earnings	$68.00M	$59.90M	$93.10M
YoY Change	13.52%	-33.0%	79.43%
Net Earnings / Revenue	2.08%	2.01%	3.01%
Basic Earnings Per Share			$3.85
Diluted Earnings Per Share	$2.869M	$2.527M	$3.84
COMMON SHARES
Basic Shares Outstanding			24.20M shares
Diluted Shares Outstanding			24.30M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$84.00M	$31.60M	$31.40M
YoY Change	165.82%	-44.85%	-18.65%
Cash & Equivalents	$84.00M	$31.60M	$31.43M
Short-Term Investments
Other Short-Term Assets	$47.80M	$65.10M	$47.65M
YoY Change	-26.57%	-8.18%	-20.08%
Inventory	$2.434B	$2.365B	$2.276B
Prepaid Expenses
Receivables	$505.0M	$529.4M	$470.7M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.071B	$2.991B	$2.826B
YoY Change	2.64%	7.5%	12.52%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.612B	$1.448B	$1.249B
YoY Change	11.31%	22.17%	14.78%
Goodwill	$454.6M	$434.9M	$357.0M
YoY Change	4.53%	69.68%	38.8%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$388.5M	$221.0M	$487.2M
YoY Change	75.79%	-18.69%	48.42%
Total Long-Term Assets	$3.013B	$2.393B	$2.349B
YoY Change	25.95%	25.91%	26.26%
TOTAL ASSETS
Total Short-Term Assets	$3.071B	$2.991B	$2.826B
Total Long-Term Assets	$3.013B	$2.393B	$2.349B
Total Assets	$6.084B	$5.384B	$5.175B
YoY Change	13.0%	14.97%	18.37%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$125.3M	$126.3M	$113.7M
YoY Change	-0.79%	13.38%	10.24%
Accrued Expenses	$336.9M	$283.6M	$259.8M
YoY Change	18.79%	12.72%	7.77%
Deferred Revenue
YoY Change
Short-Term Debt	$2.068B	$2.058B	$1.956B
YoY Change	0.48%	7.23%	14.19%
Long-Term Debt Due	$39.30M	$25.90M	$33.90M
YoY Change	51.74%	37.04%	92.61%
Total Short-Term Liabilities	$2.569B	$2.494B	$2.363B
YoY Change	3.03%	8.37%	13.9%
LONG-TERM LIABILITIES
Long-Term Debt	$1.431B	$1.358B	$1.287B
YoY Change	5.33%	32.06%	29.84%
Other Long-Term Liabilities	$109.0M	$122.2M	$123.6M
YoY Change	-10.8%	10.09%	13.03%
Total Long-Term Liabilities	$109.0M	$122.2M	$123.6M
YoY Change	-10.8%	10.09%	13.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.569B	$2.494B	$2.363B
Total Long-Term Liabilities	$109.0M	$122.2M	$123.6M
Total Liabilities	$4.616B	$4.187B	$3.969B
YoY Change	10.26%	16.3%	18.84%
SHAREHOLDERS EQUITY
Retained Earnings	$1.402B	$1.162B	$1.109B
YoY Change	20.63%	25.95%	32.03%
Common Stock	$46.00M	$35.00M	$45.90M
YoY Change	31.43%	209.73%	8.32%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.468B	$1.197B	$1.205B
YoY Change
Total Liabilities & Shareholders Equity	$6.084B	$5.384B	$5.175B
YoY Change	13.0%	14.97%	18.37%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$68.00M	$59.90M	$93.10M
YoY Change	13.52%	-33.0%	79.43%
Depreciation, Depletion And Amortization	$21.50M	$20.10M	$19.60M
YoY Change	6.97%	24.84%	32.43%
Cash From Operating Activities	$71.00M	$140.4M	$143.0M
YoY Change	-49.43%	-225.81%	74.6%
INVESTING ACTIVITIES
Capital Expenditures	-$33.00M	-$44.60M	-$41.00M
YoY Change	-26.01%	34.34%	2.76%
Acquisitions
YoY Change
Other Investing Activities	-$230.3M	$2.100M	-$22.10M
YoY Change	-11066.67%	-105.24%	-92.63%
Cash From Investing Activities	-$263.3M	-$42.50M	-$63.10M
YoY Change	519.53%	-42.02%	-81.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	249.2M	-97.80M	-78.40M
YoY Change	-354.81%	-148.04%	-129.57%
NET CHANGE
Cash From Operating Activities	71.00M	140.4M	143.0M
Cash From Investing Activities	-263.3M	-42.50M	-63.10M
Cash From Financing Activities	249.2M	-97.80M	-78.40M
Net Change In Cash	56.90M	100.0K	1.500M
YoY Change	56800.0%	-99.47%	-79.45%
FREE CASH FLOW
Cash From Operating Activities	$71.00M	$140.4M	$143.0M
Capital Expenditures	-$33.00M	-$44.60M	-$41.00M
Free Cash Flow	$104.0M	$185.0M	$184.0M
YoY Change	-43.78%	-335.97%	51.07%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Registrant Name EntityRegistrantName	LITHIA MOTORS INC
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001023128
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2018	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201602Member
CY2017	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201409Member
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccruedLiabilitiesCurrent
CY2019Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
CY2020Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligations
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:LongTermDebtAndCapitalLeaseObligations
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-14733
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OR
CY2020	dei	Entity File Number EntityFileNumber	001-14733
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	93-0572810
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	150 N. Bartlett Street,
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Medford,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	OR
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	97501
CY2020	dei	City Area Code CityAreaCode	541
CY2020	dei	Local Phone Number LocalPhoneNumber	776-6401
CY2020	dei	Security12b Title Security12bTitle	Class A common stock without par value
CY2020	dei	Trading Symbol TradingSymbol	LAD
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
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CY2019Q4	us-gaap	Inventory Net InventoryNet	2433700000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	70500000	USD
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CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	2197500000	USD
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CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	251900000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	593000000.0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	454600000	USD
CY2020Q4	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	350200000	USD
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CY2019Q4	us-gaap	Assets Assets	6083900000	USD
CY2020Q4	lad	Floor Plan Notes Payable FloorPlanNotesPayable	234200000	USD
CY2019Q4	lad	Floor Plan Notes Payable FloorPlanNotesPayable	425200000	USD
CY2020Q4	lad	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	1563000000.0	USD
CY2019Q4	lad	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	1642400000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	66000000.0	USD
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CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2479700000	USD
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CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	155700000	USD
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CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	246700000	USD
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CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	10898700000	USD
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CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	697100000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	495000000.0	USD
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CY2020	lad	Floor Plan Interest Expense FloorPlanInterestExpense	34400000	USD
CY2019	lad	Floor Plan Interest Expense FloorPlanInterestExpense	72800000	USD
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CY2018	us-gaap	Net Income Loss NetIncomeLoss	265700000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.70
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CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	19.53
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CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.22
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.19
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CY2020	us-gaap	Net Income Loss NetIncomeLoss	470300000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	271500000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	265700000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-2000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-300000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-0.0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-5600000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-700000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	0	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	464700000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	270800000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	265700000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1467700000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1197200000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1083200000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-2000000.0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-300000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2661500000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1467700000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1197200000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	470300000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	271500000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	265700000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7900000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2600000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1300000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	92400000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	82400000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	75400000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	23200000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	16200000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	13300000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1700000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	100000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-200000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	16600000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	40100000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	33000000.0	USD
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	28900000	USD
CY2019	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	31600000	USD
CY2018	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	9700000	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	15100000	USD
CY2020	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	43400000	USD
CY2019	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2018	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	0	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	17200000	USD
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	113500000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-24400000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-4700000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-228800000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	19700000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	108900000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	103600000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5400000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	16000000.0	USD
CY2020	lad	Increase Decreasein Floor Plan Notes Payable IncreaseDecreaseinFloorPlanNotesPayable	204100000	USD
CY2019	lad	Increase Decreasein Floor Plan Notes Payable IncreaseDecreaseinFloorPlanNotesPayable	-100700000	USD
CY2018	lad	Increase Decreasein Floor Plan Notes Payable IncreaseDecreaseinFloorPlanNotesPayable	-196900000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	28200000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1800000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	15100000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	113100000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-7800000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	28900000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	15100000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11300000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	25200000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	542200000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	524500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	519700000	USD
CY2018	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	167800000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6500000	USD
CY2020	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	12500000	USD
CY2019	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	12500000	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2020	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	25000000.0	USD
CY2019	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	124900000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	158000000.0	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1500000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3100000	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	11200000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	7200000	USD
CY2018	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	62700000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1503300000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	34300000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	366600000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	373800000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	57500000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	46700000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1605800000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-463000000.0	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-557100000	USD
CY2020	lad	Increase Decrease In Vehicle Floor Plan Payable Non Trade Net IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet	-20600000	USD
CY2019	lad	Increase Decrease In Vehicle Floor Plan Payable Non Trade Net IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet	-54600000	USD
CY2018	lad	Increase Decrease In Vehicle Floor Plan Payable Non Trade Net IncreaseDecreaseInVehicleFloorPlanPayableNonTradeNet	-21900000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1825400000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	3167000000.0	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2691400000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1935400000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	3481600000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2499600000	USD
CY2020	lad	Repayments Of Longterm Debt Scheduled Payments RepaymentsOfLongtermDebtScheduledPayments	29400000	USD
CY2019	lad	Repayments Of Longterm Debt Scheduled Payments RepaymentsOfLongtermDebtScheduledPayments	26000000.0	USD
CY2018	lad	Repayments Of Longterm Debt Scheduled Payments RepaymentsOfLongtermDebtScheduledPayments	26500000	USD
CY2020	lad	Repayments Of Longterm Debt Other Payments RepaymentsOfLongtermDebtOtherPayments	6300000	USD
CY2019	lad	Repayments Of Longterm Debt Other Payments RepaymentsOfLongtermDebtOtherPayments	11000000.0	USD
CY2018	lad	Repayments Of Longterm Debt Other Payments RepaymentsOfLongtermDebtOtherPayments	26100000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	606500000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	420300000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	62100000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	10800000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5800000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	400000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	790400000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11000000.0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	10100000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50600000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3200000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	148900000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	29100000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	27600000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	27700000	USD
CY2020	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	300000	USD
CY2019	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	800000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2400000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1139700000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-9100000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11700000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	76200000	USD
CY2020Q4	lad	Number Of New Vehicle Brands NumberOfNewVehicleBrands	33	brand
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	52400000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-25700000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	84000000.0	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	31600000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	57300000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	160200000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	84000000.0	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	31600000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	107700000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	135800000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	117100000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	135000000.0	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	38400000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	32900000	USD
CY2020	lad	Cash Paidfor Repaymentsof Debt Dueto Disposal Group CashPaidforRepaymentsofDebtDuetoDisposalGroup	38400000	USD
CY2019	lad	Cash Paidfor Repaymentsof Debt Dueto Disposal Group CashPaidforRepaymentsofDebtDuetoDisposalGroup	18600000	USD
CY2019	lad	Contingent Consideration In Connection With Acquisitions Noncash Activity ContingentConsiderationInConnectionWithAcquisitionsNoncashActivity	0	USD
CY2018	lad	Contingent Consideration In Connection With Acquisitions Noncash Activity ContingentConsiderationInConnectionWithAcquisitionsNoncashActivity	0	USD
CY2018	lad	Cash Paidfor Repaymentsof Debt Dueto Disposal Group CashPaidforRepaymentsofDebtDuetoDisposalGroup	33100000	USD
CY2020	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2019	us-gaap	Notes Issued1 NotesIssued1	26400000	USD
CY2018	us-gaap	Notes Issued1 NotesIssued1	125100000	USD
CY2020	lad	Contingent Consideration In Connection With Acquisitions Noncash Activity ContingentConsiderationInConnectionWithAcquisitionsNoncashActivity	14300000	USD
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2019	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2018	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	10800000	USD
CY2020	lad	Acquisition Of Finance Lease Related To Acquisitions Noncash Activities AcquisitionOfFinanceLeaseRelatedToAcquisitionsNoncashActivities	227500000	USD
CY2019	lad	Acquisition Of Finance Lease Related To Acquisitions Noncash Activities AcquisitionOfFinanceLeaseRelatedToAcquisitionsNoncashActivities	0	USD
CY2018	lad	Acquisition Of Finance Lease Related To Acquisitions Noncash Activities AcquisitionOfFinanceLeaseRelatedToAcquisitionsNoncashActivities	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	55400000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	260300000	USD
CY2020Q4	us-gaap	Number Of Stores NumberOfStores	210	numberOfStore
CY2020Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	21	state
CY2020	lad	Accounts Receivable Threshold To Bear Interest Period AccountsReceivableThresholdToBearInterestPeriod	P60D
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1600000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2300000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1300000	USD
CY2020	lad	Advertising Expense Gross AdvertisingExpenseGross	121300000	USD
CY2019	lad	Advertising Expense Gross AdvertisingExpenseGross	139800000	USD
CY2018	lad	Advertising Expense Gross AdvertisingExpenseGross	134200000	USD
CY2020	us-gaap	Cooperative Advertising Amount CooperativeAdvertisingAmount	23900000	USD
CY2019	us-gaap	Cooperative Advertising Amount CooperativeAdvertisingAmount	27900000	USD
CY2018	us-gaap	Cooperative Advertising Amount CooperativeAdvertisingAmount	25500000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	97400000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	111900000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	108700000	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div><span style="color:#00497f;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Concentration of Risk and Uncertainties</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We purchase substantially all of our new vehicles and inventory from various manufacturers at the prevailing prices charged by auto manufacturers to all franchised dealers. Our overall sales could be impacted by the auto manufacturers’ inability or unwillingness to supply dealerships with an adequate supply of popular models.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We depend on our manufacturers to provide a supply of vehicles which supports expected sales levels. In the event that manufacturers are unable to supply the needed level of vehicles, our financial performance may be adversely impacted. </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We depend on our manufacturers to deliver high-quality, defect-free vehicles. In the event that manufacturers experience future quality issues, our financial performance may be adversely impacted. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are subject to a concentration of risk in the event of financial distress, including potential reorganization or bankruptcy, of a major vehicle manufacturer. Our sales volume could be materially adversely impacted by the manufacturers’ or distributors’ inability to supply the stores with an adequate supply of vehicles. We also receive incentives and rebates from our manufacturers, including cash allowances, financing programs, discounts, holdbacks and other incentives. These incentives are recorded as accounts receivable in our Consolidated Balance Sheets until payment is received. Our financial condition could be materially adversely impacted by the manufacturers’ or distributors’ inability to continue to offer these incentives and rebates at substantially similar terms, or to pay our outstanding receivables. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We enter into Franchise Agreements with the manufacturers. The Franchise Agreements generally limit the location of the dealership and provide the auto manufacturer approval rights over changes in dealership management and ownership. The auto manufacturers are also entitled to terminate the Franchise Agreement if the dealership is in material breach of the terms. Our ability to expand operations depends, in part, on obtaining consents of the manufacturers for the acquisition of additional dealerships. See also “Goodwill” and “Franchise Value” above. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have a credit facility with a syndicate of 19 financial institutions, including seven manufacturer-affiliated finance companies. Several of these financial institutions also provide vehicle financing for certain new vehicles, vehicles that are designated for use as service loaners and mortgage financing. This credit facility is the primary source of floor plan financing for our new vehicle inventory and also provides used vehicle financing and a revolving line of credit. The term of the facility extends through January 2025. At maturity, our financial condition could be materially adversely impacted if lenders are unable to provide credit that has typically been extended to us or with terms unacceptable to us. Our financial condition could be materially adversely impacted if these providers incur losses in the future or undergo funding limitations. See Note 6.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We anticipate continued organic growth and growth through acquisitions. This growth will require additional credit which may be unavailable or with terms unacceptable to us. If these events were to occur, we may not be able to borrow sufficient funds to facilitate our growth.</span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#00497f;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and related notes to financial statements. Changes in such estimates may affect amounts reported in future periods. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Estimates are used in the calculation of certain reserves maintained for charge-backs on estimated cancellations of service contracts; life, accident and disability insurance policies; finance fees from customer financing contracts and uncollectible accounts receivable. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We also use estimates in the calculation of various expenses, accruals and reserves, including anticipated losses related to workers’ compensation insurance; anticipated losses related to self-insurance components of our property and casualty and medical insurance; self-insured lifetime lube, oil and filter service contracts; discretionary employee bonuses, the Transition Agreement with Sidney B. DeBoer, our Chairman of the Board; warranties provided on certain products and services; legal reserves and stock-based compensation. We also make certain estimates regarding the assessment of the recoverability of long-lived assets, indefinite-lived intangible assets and deferred tax assets.</span></div>We offer a limited warranty on the sale of most retail used vehicles. This warranty is based on mileage and time. We also offer a mileage and time based warranty on parts used in our service repair work and on tire purchases. The cost that may be incurred for these warranties is estimated at the time the related revenue is recorded. A reserve for these warranty liabilities is estimated based on current sales levels, warranty experience rates and estimated costs per claim.
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	500000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	600000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	194100000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	171500000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	31100000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	25900000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	8200000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	8900000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2020Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	720900000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	567400000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5900000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	7300000	USD
CY2020Q4	us-gaap	Accounts Receivable Gross Noncurrent AccountsReceivableGrossNoncurrent	101000000.0	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Noncurrent AccountsReceivableGrossNoncurrent	55100000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	614000000.0	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	505000000.0	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	284300000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	2492900000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	2433700000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	2485500000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1861300000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	338000000.0	USD
CY2020Q4	lad	Property Plant And Equipment And Finance Lease Right Of Use Asset Net Before Construction In Progress PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetNetBeforeConstructionInProgress	2147500000	USD
CY2019Q4	lad	Property Plant And Equipment And Finance Lease Right Of Use Asset Net Before Construction In Progress PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetNetBeforeConstructionInProgress	1577000000.0	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	50000000.0	USD
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	34700000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	2197500000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1611700000	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	500000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	1300000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	434900000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	5100000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	17400000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	1100000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1700000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	454600000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	144900000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	3000000.0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3500000	USD
CY2018Q4	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	288700000	USD
CY2019	us-gaap	Indefinite Lived Intangible Assets Purchase Accounting Adjustments IndefiniteLivedIntangibleAssetsPurchaseAccountingAdjustments	3500000	USD
CY2019Q4	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	306700000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	593000000.0	USD
CY2008Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	299300000	USD
CY2019	lad	Goodwill Acquired During Period And Purchase Accounting Adjustments GoodwillAcquiredDuringPeriodAndPurchaseAccountingAdjustments	22500000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	144900000	USD
CY2019	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	20900000	USD
CY2019	us-gaap	Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit IndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	6000000.0	USD
CY2019	lad	Franchise Value Impairment FranchiseValueImpairment	400000	USD
CY2020	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	51900000	USD
CY2020	us-gaap	Indefinite Lived Intangible Assets Written Off Related To Sale Of Business Unit IndefiniteLivedIntangibleAssetsWrittenOffRelatedToSaleOfBusinessUnit	4000000.0	USD
CY2020	lad	Franchise Value Impairment FranchiseValueImpairment	4400000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	66000000.0	USD
CY2020Q4	us-gaap	Indefinite Lived Franchise Rights IndefiniteLivedFranchiseRights	350200000	USD
CY2019	lad	Indefinitelived Intangible Assets Acquired And Purchase Accounting Adjustments IndefinitelivedIntangibleAssetsAcquiredAndPurchaseAccountingAdjustments	24400000	USD
CY2020	us-gaap	Indefinitelived Intangible Assets Acquired IndefinitelivedIntangibleAssetsAcquired	51900000	USD
CY2020Q4	lad	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	1563000000.0	USD
CY2019Q4	lad	Floor Plan Notes Payable Non Trade FloorPlanNotesPayableNonTrade	1642400000	USD
CY2020Q4	lad	Floor Plan Notes Payable FloorPlanNotesPayable	234200000	USD
CY2019Q4	lad	Floor Plan Notes Payable FloorPlanNotesPayable	425200000	USD
CY2020Q4	lad	Floor Plan Debt FloorPlanDebt	1797200000	USD
CY2019Q4	lad	Floor Plan Debt FloorPlanDebt	2067600000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	246400000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	30500000	USD
CY2020Q4	lad	Long Term Debt Gross And Lease Obligation LongTermDebtGrossAndLeaseObligation	2149300000	USD
CY2019Q4	lad	Long Term Debt Gross And Lease Obligation LongTermDebtGrossAndLeaseObligation	1480300000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	18600000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	10400000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	39300000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2064700000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1430600000	USD
CY2020Q4	lad	Debt Covenant Current Ratio DebtCovenantCurrentRatio	1.10
CY2020Q4	lad	Current Ratio CurrentRatio	1.48
CY2020Q4	lad	Debt Covenant Fixed Charge Coverage Ratio DebtCovenantFixedChargeCoverageRatio	1.20
CY2020Q4	lad	Fixed Charge Coverage Ratio FixedChargeCoverageRatio	3.91
CY2020Q4	lad	Debt Covenant Leverage Ratio DebtCovenantLeverageRatio	5.75
CY2020Q4	lad	Leverage Ratio LeverageRatio	2.74
CY2020Q3	lad	Debt Instrument Number Of Manufacturer Affiliated Finance Companies DebtInstrumentNumberOfManufacturerAffiliatedFinanceCompanies	2	finance_company
CY2020Q4	lad	Floor Plan Notes Payable FloorPlanNotesPayable	234200000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	69400000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	78900000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	148000000.0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	87500000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	448300000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1278200000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2110300000	USD
CY2020Q4	lad	Charge Backs Liabilities ChargeBacksLiabilities	67100000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due In One Year ChargeBacksFutureMinimumPaymentsDueInOneYear	39900000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due In Two Years ChargeBacksFutureMinimumPaymentsDueInTwoYears	17600000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	194300000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due In Three Years ChargeBacksFutureMinimumPaymentsDueInThreeYears	7100000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due In Four Years ChargeBacksFutureMinimumPaymentsDueInFourYears	2100000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due In Five Years ChargeBacksFutureMinimumPaymentsDueInFiveYears	400000	USD
CY2020Q4	lad	Charge Backs Future Minimum Payments Due Thereafter ChargeBacksFutureMinimumPaymentsDueThereafter	0	USD
CY2020Q4	lad	Charge Backs Liabilities ChargeBacksLiabilities	67100000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	38800000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	31100000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	24900000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	20700000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	17400000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	61400000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	194300000	USD
CY2020Q4	lad	Contracts Obligations Reserve ContractsObligationsReserve	2800000	USD
CY2020Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	39100000	USD
CY2019Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	34400000	USD
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2018Q1	us-gaap	Dividends Common Stock DividendsCommonStock	6700000	USD
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2018Q2	us-gaap	Dividends Common Stock DividendsCommonStock	7200000	USD
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2018Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7000000.0	USD
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2018Q4	us-gaap	Dividends Common Stock DividendsCommonStock	6800000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.29
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	6700000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	7000000.0	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7000000.0	USD
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q4	us-gaap	Dividends Common Stock DividendsCommonStock	6900000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2020Q1	us-gaap	Dividends Common Stock DividendsCommonStock	7000000.0	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	6800000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.31
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7100000	USD
CY2018	lad	Guaranteed Annual Return GuaranteedAnnualReturn	0.0500
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.31
CY2020Q4	us-gaap	Dividends Common Stock DividendsCommonStock	8200000	USD
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	9000000.0	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	9800000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	5700000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1200000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	900000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	1300000	USD
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	900000	USD
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	300000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	800000	USD
CY2020	lad	Guaranteed Annual Return GuaranteedAnnualReturn	0.0500
CY2019	lad	Guaranteed Annual Return GuaranteedAnnualReturn	0.0500
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0469
CY2018	lad	Weighted Average Per Share Discount For Compensation Expense Recognized Under The2009 Espp WeightedAveragePerShareDiscountForCompensationExpenseRecognizedUnderThe2009ESPP	13.10
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	108500000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	92000000.0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	92000000.0	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	130.89
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	75.73
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	86.84
CY2020	lad	Weighted Average Per Share Discount For Compensation Expense Recognized Under The2009 Espp WeightedAveragePerShareDiscountForCompensationExpenseRecognizedUnderThe2009ESPP	22.97
CY2019	lad	Weighted Average Per Share Discount For Compensation Expense Recognized Under The2009 Espp WeightedAveragePerShareDiscountForCompensationExpenseRecognizedUnderThe2009ESPP	17.83
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	10600000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	13600000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3700000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2700000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3500000	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	14800000	USD
CY2019	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	11300000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	9800000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	9000000.0	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	30800000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	25200000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	246700000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	238500000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	277500000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	263700000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	6000000.0	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1100000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	240400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	29400000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	246400000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	30500000	USD
CY2020Q4	lad	Lease Liability LeaseLiability	523900000	USD
CY2019Q4	lad	Lease Liability LeaseLiability	294200000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	253900000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P12Y
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0412
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	41600000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	3100000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4500000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3400000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	4900000	USD
CY2020	us-gaap	Lease Cost LeaseCost	47700000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	41300000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	43300000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	374000000.0	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	42700000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	11900000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	40600000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	25700000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	34700000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	92300000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	29400000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	13300000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	26900000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	99500000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	199700000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	32800000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	275500000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	96500000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	29100000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	277500000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	246400000	USD
CY2020Q4	us-gaap	Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet	2800000	USD
CY2020	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	43400000	USD
CY2020Q2	lad	Franchise Value Impairment FranchiseValueImpairment	3500000	USD
CY2020Q2	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	4400000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	108900000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	40000000.0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30300000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	50300000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	24000000.0	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11500000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	159200000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	64000000.0	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	41800000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	17600000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	34700000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	20400000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1400000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5200000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	9600000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	19000000.0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	39900000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	30000000.0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	178200000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103900000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	71800000	USD
CY2020Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	33000000.0	USD
CY2019Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	10100000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	136200000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	78800000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	70900000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	40400000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	23600000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	16100000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2800000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	2600000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1500000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-500000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	200000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-100000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	500000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-500000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	500000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1300000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	900000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1100000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-15800000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	100000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	100000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-200000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	178200000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103900000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	71800000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	64200000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	48400000	USD
CY2020Q4	lad	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	69800000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	42100000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1100000	USD
CY2020Q4	lad	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	73400000	USD
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CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	300000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	195500000	USD
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CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	44900000	USD
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CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
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CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	200000	USD
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Asset1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1	0	USD
CY2019	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	13.83
CY2020Q3	lad	Business Acquisition Number Of Stores BusinessAcquisitionNumberOfStores	10	numberOfStore
CY2020Q4	lad	Business Acquisition Number Of Stores BusinessAcquisitionNumberOfStores	9	numberOfStore
CY2020	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	866100000	USD
CY2020	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	28900000	USD
CY2020	lad	Payments To Acquire Business Net Of Cash Acquired Preliminary PaymentsToAcquireBusinessNetOfCashAcquiredPreliminary	1503100000	USD
CY2019	lad	Payments To Acquire Business Net Of Cash Acquired Preliminary PaymentsToAcquireBusinessNetOfCashAcquiredPreliminary	366600000	USD
CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Asset1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1	4600000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1401800000	USD
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CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	20.87
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CY2019Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Other BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther	29300000	USD
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CY2020	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	1726600000	USD
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CY2020Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Noncurrent Liabilities Other BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther	8500000	USD
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CY2019	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	16043400000	USD
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CY2019	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	321100000	USD
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	21.10
CY2020	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	Recent Accounting PronouncementsIn December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2019-12, “Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes”. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2020, with early adoption permitted. We are currently in the process of evaluating the effects of this pronouncement on our consolidated financial statements.In October 2020, the FASB issued ASU 2020-10, “Codification Improvements.” The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2020, with early adoption permitted. We are not early adopting and are in the process of evaluating the effects of this pronouncement on our consolidated financial statements. We do not expect any changes from this pronouncement to be material to our consolidated financial statements.
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	13124300000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12672700000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	375400000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	337500000	USD
CY2020	lad	Floor Plan Interest Expense FloorPlanInterestExpense	34400000	USD
CY2019	lad	Floor Plan Interest Expense FloorPlanInterestExpense	72800000	USD
CY2018	lad	Floor Plan Interest Expense FloorPlanInterestExpense	62300000	USD
CY2020Q4	us-gaap	Assets Assets	7902100000	USD
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CY2019Q4	us-gaap	Liabilities Liabilities	4616200000	USD
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CY2019Q4	us-gaap	Assets Assets	6083900000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	131100000	USD

Files In Submission

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$LAD
Lithia Motors Inc Stock $lad

2019 Q4 Form 10-K Financial Statement

#000102312821000022 Filed on February 19, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LAD Lithia Motors Inc Stock $lad

2019 Q4 Form 10-K Financial Statement

#000102312821000022 Filed on February 19, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$LAD
Lithia Motors Inc Stock $lad