Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 387,814	$ 385,783
Accumulated depreciation and amortization	(237,225)	(226,929)
Property and equipment, net	$ 150,589	158,854
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	40 years
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,380	7,138
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 16,691	21,373
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	5 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	40 years
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 65,054	77,337
Furniture and office equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	5 years
Furniture and office equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	7 years
Computer hardware
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 20,175	15,684
Computer hardware | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	3 years
Computer hardware | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	7 years
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 199,635	183,015
Computer software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	3 years
Computer software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	10 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 71,633	65,719
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life of property and equipment	15 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 9,246	$ 15,517