Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property Plant And Equipment [Line Items]
Property plant and equipment, gross	$ 31,141	$ 29,184
Less: Accumulated depreciation and amortization	(14,085)	(6,443)
Property plant and equipment, net	17,056	22,741
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, gross	$ 4,106	2,501
Furniture and Fixtures [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, useful life in years	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, useful life in years	7 years
Computers and Equipment [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, gross	$ 7,659	7,216
Computers and Equipment [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, useful life in years	3 years
Computers and Equipment [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, useful life in years	8 years
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Property plant and equipment, gross	$ 19,376	$ 19,467
Property plant and equipment, useful life in years	Shorter of remaining lease term or useful life