Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Summary of Reportable Operating Segment (Detail)

v3.5.0.2
Segment Information - Summary of Reportable Operating Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Segment Reporting Information [Line Items]        
Total consolidated revenues $ 2,557,928 $ 2,494,408 $ 7,174,866 $ 7,153,663
Total segment income (loss) 44,255 57,559 130,480 132,061
Interest expense, other, net (13,016) (12,361) (37,560) (38,635)
Other income (expense), net 11   120 102
Income (loss) from continuing operations before taxes 31,250 45,198 93,040 93,528
Franchised Dealerships [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenues 2,517,526 2,472,357 7,080,952 7,094,951
Total segment income (loss) 47,852 61,104 140,705 145,888
Echo Park [Member]        
Segment Reporting Information [Line Items]        
Total consolidated revenues 40,402 22,051 93,914 58,712
Total segment income (loss) $ (3,597) $ (3,545) $ (10,225) $ (13,827)