Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Property and Equipment - Components of Property and Equipment, Net (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Total, at cost $ 1,045,839 $ 1,006,147
Less accumulated depreciation (324,686) (300,035)
Subtotal 721,153 706,112
Subtotal 721,153 706,112
Less assets held for sale (8,499) (4,101)
Property and Equipment, net 712,654 702,011
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost 205,032 194,639
Building and Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost 574,605 569,619
Office Equipment and Fixtures [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost 138,068 135,221
Parts and Service Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost 73,576 70,950
Company Vehicles [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost 8,249 8,002
Construction in Progress [Member]
    
Property, Plant and Equipment [Line Items]    
Total, at cost $ 46,309 $ 27,716