Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Leases [Abstract]
Operating lease right-of-use assets	$ 48,984	$ 45,438	$ 43,374
Operating - current	9,831	8,769	9,777
Operating - noncurrent	39,654	37,091	34,087
Total operating lease liabilities	49,485	45,860	43,864
Property and equipment, gross	3,569	3,569	3,569
Accumulated amortization	(3,556)	(3,416)	(3,264)
Property and equipment, net	13	153	305
Other current liabilities	0	0	48
Total finance lease liabilities	$ 0	$ 0	$ 48