Leases - Balance Sheet and Other Supplemental Operating Lease Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 105,845	$ 125,822
Operating lease liabilities, current	32,211	26,927
Operating lease liabilities, noncurrent	99,177	104,070
Total operating lease liabilities	$ 131,388	$ 130,997
Weighted average remaining lease term	5 years 2 months 12 days	5 years 10 months 24 days
Weighted average discount rate	3.93%	3.95%