Annual report pursuant to Section 13 and 15(d)

Inventories and Related Notes Payable - Floor Plan - Components of Inventories (Detail)

v3.8.0.1
Inventories and Related Notes Payable - Floor Plan - Components of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
New vehicles $ 1,017,523 $ 1,088,814
Used vehicles 294,496 282,288
Service loaners 130,406 128,821
Parts, accessories and other 70,320 70,778
Net inventories $ 1,512,745 $ 1,570,701