Lease Obligations - Lease Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Operating lease liabilities
2022	$ 113,499
2023	113,300
2024	108,952
2025	102,616
2026	96,706
Thereafter	701,911
Total lease payments	1,236,984
Less: Imputed interest	(399,878)
Total lease obligations	837,106
Less: Current portion	(62,217)	$ (62,405)
Operating lease liabilities - non-current	774,889	804,555
Finance lease liabilities
2022	8,777
2023	12,167
2024	7,001
2025	6,157
2026	6,134
Thereafter	77,357
Total lease payments	117,593
Less: Imputed interest	(37,877)
Total lease liabilities	79,716
Less: Current portion	(4,964)	(2,240)
Finance lease liabilities, net of current portion	$ 74,752	$ 27,742