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Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross $ 264,266 $ 223,055
Less: accumulated depreciation and amortization (157,856) (132,938)
Property Plant And Equipment Net 106,410 90,117
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross 108  
Building [Member]    
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross 3,901  
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross 7,748 6,717
Furniture, Fixtures and Equipment[Member]    
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross 49,199 38,369
Vehicles and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property Plant And Equipment Gross $ 203,310 $ 177,969