Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Property and Equipment - Components of Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Property Plant And Equipment [Line Items]    
Total, at cost $ 1,464,795 $ 1,266,590
Less accumulated depreciation (450,184) (379,688)
Subtotal 1,014,611 886,902
Less assets held for sale (4,231)  
Property and equipment, net 1,010,380 886,902
Land [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 306,457 260,275
Building and Improvements [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 777,766 679,712
Software and Computer Equipment [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 128,366 107,086
Office Equipment and Fixtures [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 86,216 76,810
Parts and Service Equipment [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 93,901 79,219
Company Vehicles [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost 9,107 8,478
Construction in Progress [Member]    
Property Plant And Equipment [Line Items]    
Total, at cost $ 62,982 $ 55,010