Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 52,747	$ 28,855
Accumulated depreciation	16,409	11,532
Property and equipment, net	36,338	17,323
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	16,546	12,848
Office Furniture and Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,910	3,193
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 31,291	$ 12,814