Leases - Summary of Lease Costs and Other Information Pertaining to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 35,049	$ 35,346
Total lease cost	35,049	35,346
Operating cash flows used for operating leases	$ 32,097	$ 31,026
Weighted average remaining lease term	6 years 4 months 24 days	7 years 4 months 24 days
Weighted average discount rate	6.35%	6.70%
Short-term lease, cost	$ 0
Variable lease, cost	$ 0