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Business Acquisitions and Dispositions - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | |
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Sep. 30, 2014
Franchise
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Sep. 30, 2014
Franchise
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Mar. 31, 2014
Dealerships
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| Business Acquisition [Line Items] | |||
| Aggregate purchase price of franchise | $ 15.3 | ||
| Number of dealerships held for sale | 0 | ||
| Number of franchises disposed | 2 | 5 | |
| Cash generated from disposition | $ 14.9 | $ 30.1 | |
| Number of franchise held for sale | 1 | 1 | |
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Mid-line Import Franchise [Member]
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| Business Acquisition [Line Items] | |||
| Number of franchise acquired | 1 | ||
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Luxury Franchise [Member]
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| Business Acquisition [Line Items] | |||
| Number of franchise acquired | 1 |
| X | ||||||||||
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- Definition
Held for sale dealerships number. No definition available.
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| X | ||||||||||
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- Definition
Number of dealerships. No definition available.
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| X | ||||||||||
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- Definition
Number of franchises disposed. No definition available.
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| X | ||||||||||
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- Definition
Proceeds from dispositions of franchises. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of businesses acquired by the entity during the period. No definition available.
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