Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 976,573		$ 976,573		$ 959,709
Less accumulated depreciation	(569,345)		(569,345)		(535,039)
Property and equipment, net	407,228		407,228		424,670
Depreciation expense	21,200	$ 20,400	64,200	$ 63,600
Impairment losses			1,200	$ 12,300
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7,476		7,476		7,476
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,487		6,487		6,487
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	68,362		68,362		74,043
Capitalized software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	843,638		843,638		819,828
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,334		50,334		48,811
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 276		$ 276		$ 3,064