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Note 17 - Leases - Supplemental Information About Leases (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Amortization of right of use assets $ 967 $ 1,649 $ 2,243
Interest incurred on lease liabilities 2,246 2,386 2,478
Operating lease expense 21,479 19,870 24,915
Short term lease expense 54,756 56,156 66,450
Total lease expense 79,448 80,061 96,086
Operating cash flows from operating leases 25,348 23,134 24,095
Operating leases $ 8,529 $ 8,917 $ 18,447
Operating leases (Year) 7 years 3 months 18 days 8 years 6 months 8 years 8 months 12 days
Finance leases (Year) 11 years 11 years 8 months 12 days 11 years 10 months 24 days
Weighted average discount rate for operating leases 8.80% 10.00% 10.30%
Weighted average discount rate for finance leases 13.10% 13.50% 13.50%