Credit Facilities (Tables)

12 Months Ended

Dec. 31, 2017

Line of Credit Facility [Abstract]

Outstanding balances under financing arrangements

The outstanding balances under these financing arrangements were as follows:

	December 31,
	2017			2016
	(In thousands)
Floorplan notes payable — credit facility and other
New vehicles	$	1,019,511		$	941,913
Used vehicles	176,802			160,070
Rental vehicles	23,530			29,735
Floorplan offset	(86,547		)	(59,626		)
Total floorplan notes payable - credit facility	1,133,296			1,072,092
Other floorplan notes payable	20,852			4,936
Total floorplan notes payable - credit facility and other	$	1,154,148		$	1,077,028
Floorplan notes payable — manufacturer affiliates
FMCC Facility	$	152,984		$	175,244
Floorplan offset	(22,500		)	(25,500		)
Total FMCC Facility	130,484			149,744
Foreign and rental vehicles	244,199			217,417
Total floorplan notes payable — manufacturer affiliates	$	374,683		$	367,161