Leases - Lease Payment Maturity Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 35,716
2022	9,978
2024	4,207
2025	4,285
Thereafter	1,649
Total lease payments	60,124
Less imputed interest	(2,810)
Lease liability	57,314	$ 91,623
Less current obligations	(35,716)	(50,164)
Long-term lease obligations	21,598	41,459
Financing Leases
2021	621
2022	308
2023	102
2024	0
2025	0
Thereafter	0
Total lease payments	1,031
Less imputed interest	(154)
Total lease obligations	877	1,323
Less current obligations	(621)	(799)
Long-term lease obligations	256	$ 524
2022	$ 4,289