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Commitments and Contingencies - Summary of Lease Exit Accruals (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
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Dec. 31, 2014
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| Commitments And Contingencies Disclosure [Abstract] | |
| Component of lease exit expense in interest expense, other, net | $ 0.2sah_LeaseExitExpenseInterestOther |
| Component of lease exit expense in selling, general and administrative expenses | 0.3sah_LeaseExitExpenseSellingGeneralAndAdministrative |
| Component of lease exit expense in income (loss) from operations and the sale of dealerships | 0.2sah_LeaseExitExpenseDiscontinuedOperations |
| Component of lease exit payments in selling, general and administrative expenses | 0.8sah_LeaseExitPaymentSellingGeneralAndAdministrative |
| Component of lease exit payments in income (loss) from operations and the sale of dealerships | $ 6.2sah_LeaseExitPaymentDiscontinuedOperations |
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- Definition
Lease exit expense discontinued operations. No definition available.
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| X | ||||||||||
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- Definition
Lease exit expense interest other. No definition available.
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| X | ||||||||||
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- Definition
Lease exit expense selling general and administrative. No definition available.
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| X | ||||||||||
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- Definition
Lease exit payment discontinued operations. No definition available.
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- Definition
Lease exit payment selling general and administrative. No definition available.
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- Details
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