LEASES - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finance Leases
2022	$ 16,435
2023	26,765
2024	18,078
2025	14,348
2026	86
Total lease payments	75,712
Less: Imputed interest	(5,343)
Total lease obligations	70,369	$ 66,137
Less: Current obligations	(14,095)	(11,655)
Long-term finance lease obligations	56,274	54,482
Operating Leases
2022	6,840
2023	6,327
2024	6,012
2025	5,086
2026	762
Thereafter	503
Total lease payments	25,530
Less: Imputed interest	(2,207)
Total operating lease liabilities	23,323	28,528
Less: Current obligations	(6,679)	(6,838)
Long-term operating lease obligations	$ 16,644	$ 21,690