Fair Value Measurements - Additional Information (Detail) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2017
USD ($)
Franchise
Business
|
Sep. 30, 2016
Business
|
Jun. 30, 2016
Franchise
|
Jun. 30, 2017
Franchise
Business
|
Jun. 30, 2016
Franchise
|
|
| Business Acquisition [Line Items] | |||||
| Number of businesses acquired | Franchise | 0 | 0 | 0 | 0 | |
| Stand-alone Pre-owned Businesses and Real Estate [Member] | |||||
| Business Acquisition [Line Items] | |||||
| Number of businesses acquired | Business | 3 | ||||
| Impairment of goodwill | $ | $ 0.9 | ||||
| Impairment of property and equipment | $ | $ 0.8 | ||||
| Number of businesses closed | Business | 2 | 2 | |||
| X | ||||||||||
- Definition Impairment of property and equipment. No definition available.
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| X | ||||||||||
- Definition Number of business closed. No definition available.
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| X | ||||||||||
- 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. No definition available.
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| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The number of businesses acquired by the entity during the period. No definition available.
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| X | ||||||||||
- Details
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