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Fixed Assets, Net - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 21,655 $ 21,923  
Impairment charges 2,000 4,800  
Leasehold Improvements and Other Fixed Assets [Member]      
Property, Plant and Equipment [Line Items]      
Asset retirement obligations 5,900   $ 5,900
Occupancy and Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Depreciation expense 6,300 6,100  
Software development costs capitalized 11,200 12,900  
Amortization of software development costs $ 8,300 $ 7,600