Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,067,374		$ 1,067,374		$ 1,057,636
Less accumulated depreciation	(627,359)		(627,359)		(606,615)
Property and equipment, net	440,015		440,015		451,021
Depreciation expense	23,100	$ 22,500	46,300	$ 45,900
Impairment losses	1,200	$ 1,200	12,200	$ 12,200
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	74,799		74,799		74,978
Capitalized software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	928,035		928,035		916,820
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,206		50,206		48,811
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 371		$ 371		$ 3,064