Leases - Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 6,221	$ 5,797	$ 5,823
Short-term lease cost	10,529	7,991	8,281
Short-term lease cost - related party	0	3,518	3,589
Total lease cost	16,750	17,306	17,693
Cash paid for amounts included in the measurement of lease liabilities - operating leases	$ 5,625	$ 5,685	$ 5,678
Weighted-average remaining lease term - operating leases (in years)	4 years 8 months 23 days	5 years 21 days	5 years 7 months 6 days
Weighted-average discount rate - operating leases	4.44%	5.17%	5.45%