Commitments and Contingencies - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease, Cost [Abstract]
Operating lease cost	$ 7,025	$ 7,573
Variable lease cost	3,182	2,515
Total lease costs	10,207	10,088
Right-of-use assets obtained in exchange for operating lease obligations	$ 3,496	$ 940
Weighted average remaining lease term, in years	5 years	6 years
Weighted Average Discount Rate	2.80%	4.70%