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Fixed Assets (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 31, 2017 USD ($) a	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Property, Plant and Equipment [Line Items]
Fixed assets, gross		$ 464,946	$ 481,046
Less: accumulated depreciation and amortization		(286,023)	(312,060)
Fixed assets, net		178,923	168,986
Depreciation expense		28,000	23,200	$ 19,900
Number of acres | a	6
Proceeds from sale of property	$ 12,200
Promissory note received in sale of land	$ 5,700
Interest rate on promissory note	3.50%
Land [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross		18,152	18,152
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross		139,274	140,567
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross		46,450	70,355
Software Development [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross		254,066	244,425
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross		$ 7,004	$ 7,547

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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