Commitments and Contingencies - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Lease Costs
Operating lease costs before capitalized operating lease costs	$ 30,270	$ 32,169
Operating lease costs capitalized	(3,716)	(3,126)
Operating lease costs, net	26,554	29,043	$ 33,188
Finance Lease, Costs [Abstract]
Interest on financing leases	5,448	8,091	$ 3,243
Interest on financing leases capitalized	0	(2,378)
Interest on financing leases, net	5,448	5,713
Finance lease, right-of-use asset, amortization	660	1,200
Financing lease costs, net	$ 6,108	$ 6,913
Operating lease, weighted average discount rate, percent	4.45%
Operating lease, weighted average remaining lease term	32 years