Quarterly report pursuant to Section 13 or 15(d)

Business Acquisitions and Dispositions - Revenues and Other Activities Associated with Disposed Dealerships That Remain in Continuing Operations (Detail)

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Business Acquisitions and Dispositions - Revenues and Other Activities Associated with Disposed Dealerships That Remain in Continuing Operations (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Business Combinations [Abstract]    
Income (loss) from operations $ (27) $ (31)
Gain (loss) on disposal (24) (48)
Pre-tax income (loss) $ (51) (79)
Total revenues   $ 14