Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Components of Property and Equipment, Net (Detail)

v3.3.1.900
Property and Equipment - Components of Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Property Plant And Equipment [Line Items]    
Total, at cost $ 1,266,590 $ 1,115,936
Less accumulated depreciation (379,688) (316,617)
Property and equipment, net 886,902 799,319
Land [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 260,275 224,124
Building and Improvements [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 679,712 582,261
Office Equipment and Fixtures [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 183,896 151,165
Parts and Service Equipment [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 79,219 68,248
Company Vehicles [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 8,478 8,958
Construction in Progress [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost $ 55,010 $ 81,180