Leases - Components of lease expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases
Operating lease cost	$ 166,599	$ 217,635	$ 246,523
Short-term lease cost	74,514	33,456	11,409
Amortization of right-of-use assets	38,322	49,496	49,496
Interest on lease liabilities	8,566	13,122	17,595
Total finance lease cost	46,888	62,618	67,091
Total lease costs	$ 288,001	$ 313,709	$ 325,023