Summary of Quarterly Financial Data (Unaudited) - Additional Information (Detail) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||
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Dec. 31, 2015
USD ($)
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Jun. 30, 2015
USD ($)
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Mar. 31, 2015
USD ($)
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Dec. 31, 2014
USD ($)
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Sep. 30, 2014
USD ($)
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Jun. 30, 2014
USD ($)
Franchise
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Dec. 31, 2015
USD ($)
Dealerships
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Dec. 31, 2014
USD ($)
Dealerships
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Dec. 31, 2013
USD ($)
Dealerships
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| Condensed Unaudited Quarterly Financial Data [Line Items] | |||||||||
| Pre-tax gain (loss) on disposal | $ 2,748 | $ 11,079 | |||||||
| Asset impairment charges | $ 1,300 | $ 10,500 | $ 6,200 | $ 6,400 | $ 200 | $ 17,955 | $ 6,594 | $ 9,872 | |
| Pre-tax charges against to natural damages | 4,200 | 1,000 | 2,000 | $ 1,000 | |||||
| Pre-tax severance expenses | $ 900 | ||||||||
| Number of franchises disposed | 2 | 4 | 9 | 0 | |||||
| Pre-tax charges against legal settlement reserve accrual | $ 300 | ||||||||
| Franchised Dealerships [Member] | |||||||||
| Condensed Unaudited Quarterly Financial Data [Line Items] | |||||||||
| Pre-tax gain (loss) on disposal | $ 2,300 | $ 1,100 | $ 3,200 | $ 7,300 | |||||
| Tax expenses | $ 900 | ||||||||
| X | ||||||||||
- Definition Line items constituting unaudited summary of quarterly financial data. No definition available.
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- Definition Number of franchises disposed. No definition available.
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available.
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- Definition The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of other income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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