Accounts Receivable, Receipt of Payment, Period

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- Definition

Accounts Receivable, Threshold To Bear Interest, Period

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- Definition

Financing Receivable, Less Than 60 Days Past Due, Percent

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- Definition

The number of financial institutions.

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No definition available.

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- Definition

The number of manufacturer affiliated finance companies.

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- Definition

The number of the new vehicle brands.

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No definition available.

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- Definition

Amount of allowance for credit loss of accounts and financing receivables. Includes, but is not limited to, notes and loan receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage of nonaccrual financing receivable balance outstanding that is past due.

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No definition available.

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- Definition

Amount of interest capitalized during the period.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The number of states the entity operates in as of the balance sheet date.

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- Definition

Represents the number of stores.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Summary of Significant Accounting Policies - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) finance_company segment brand numberOfStore state financial_institution	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of stores \| numberOfStore	210
Number of new vehicle brands \| brand	33
Number of states \| state	21
Debt Instrument [Line Items]
Threshold period for interest to bear on receivables	60 days
Interest costs capitalized	$ 1.6	$ 2.3	$ 1.3
Accrued warranty balance	0.5	0.6
Contract liability	194.1	171.5
Contract liability, revenue recognized	31.1	25.9
Contract asset	$ 8.2	$ 8.9
Number of reportable segments \| segment	3
Loans receivables \| Automobile loan
Debt Instrument [Line Items]
Loan receivables aged less than 60 days past due, percent (more than)	95.00%
Loan receivable on non-accrual status, percent (less than)	5.00%
Allowance for credit losses	$ 12.9
Minimum
Debt Instrument [Line Items]
Period that contracts in transit are outstanding	5 days
Maximum
Debt Instrument [Line Items]
Period that contracts in transit are outstanding	10 days
Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Number of financial institutions \| financial_institution	19
Number of manufacturer affiliated finance companies \| finance_company	7