Fixed Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Depreciation expense			$ 63,075	$ 58,710
Impairment charges	$ 100	$ 400	5,100	1,300
Leasehold Improvements and Other Fixed Assets [Member]
Property, Plant and Equipment [Line Items]
Asset retirement obligations	5,600		5,600
Occupancy and Equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	6,300	4,800	18,300	15,200
Software development costs capitalized	12,800	14,500	41,100	30,000
Amortization of software development costs	$ 7,700	$ 7,200	$ 23,000	$ 20,400