Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 362,466	$ 354,119
Less: Accumulated depreciation and amortization	(205,889)	(226,302)
Total property and equipment, net	156,577	127,817
Computers and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	350,735	334,768
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,721	1,977
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,010	$ 17,374

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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