Fixed and Intangible Assets - Schedule of Equipment and Leasehold Improvements, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Equipment and Leasehold Improvements, Net
Total	$ 91,240	$ 74,905
Less accumulated depreciation and amortization	(32,077)	(24,928)
Equipment and leasehold improvements, net	59,163	49,977
Office Equipment
Equipment and Leasehold Improvements, Net
Total	15,883	13,267
Furniture and Fixtures
Equipment and Leasehold Improvements, Net
Total	14,303	10,409
Leasehold Improvements
Equipment and Leasehold Improvements, Net
Total	$ 61,054	36,286
Construction in progress
Equipment and Leasehold Improvements, Net
Total		$ 14,943

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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