Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property and Equipment
Property and equipment	$ 236,783	$ 216,767
Less accumulated depreciation and amortization	(110,104)	(97,033)
Property and equipment, net	126,679	119,734
Land [Member]
Property and Equipment
Property and equipment	5,579	5,579
Land Improvements [Member]
Property and Equipment
Property and equipment	2,242	2,242
Buildings [Member]
Property and Equipment
Property and equipment	51,399	51,399
Buildings and Leasehold Improvements [Member]
Property and Equipment
Property and equipment	13,571	11,691
Computer Equipment
Property and Equipment
Property and equipment	100,740	95,020
Furniture, Fixtures and Equipment
Property and Equipment
Property and equipment	14,299	10,423
Internally Developed Software [Member]
Property and Equipment
Property and equipment	44,899	37,175
Construction in Progress [Member]
Property and Equipment
Property and equipment	$ 4,054	$ 3,238

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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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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