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Business Acquisitions and Dispositions - Results Associated with Disposed Dealerships That Remain in Continued Operations (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Business Combinations [Abstract] |  |  |  |
Income (loss) from operations | $ (99) | $ (132) | $ 268 | $ (936)
Gain (loss) on disposal | 3,111 |  | 10,734 |
Pre-tax income (loss) | 3,012 | (132) | 11,002 | (936)
Total revenues | $ 4,117 | $ 43,181 | $ 86,467 | $ 125,139

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- Details
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- Definition The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228 + Details
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