Leases - Maturities Of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Less than one year	$ 61,174	$ 60,649
One to two years	39,424	57,541
Two to three years	6,984	39,229
Three to four years	2,462	6,844
Four to five years	1,074	2,340
Over five years	4,193	4,054
Total lease payments	115,311	170,657
Less: imputed interest	(9,374)	(18,049)
Total operating lease liabilities	105,937	152,608
Current operating lease liabilities	55,739	51,599
Non-current operating lease liabilities	50,198	101,009
Vessels
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Less than one year	55,573	54,621
One to two years	34,580	52,106
Two to three years	2,470	34,580
Three to four years		2,470
Total lease payments	92,623	143,777
Less: imputed interest	(5,633)	(13,352)
Total operating lease liabilities	86,990	130,425
Current operating lease liabilities	51,035	46,748
Non-current operating lease liabilities	35,955	83,677
Facilities and Equipment
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Less than one year	5,601	6,028
One to two years	4,844	5,435
Two to three years	4,514	4,649
Three to four years	2,462	4,374
Four to five years	1,074	2,340
Over five years	4,193	4,054
Total lease payments	22,688	26,880
Less: imputed interest	(3,741)	(4,697)
Total operating lease liabilities	18,947	22,183
Current operating lease liabilities	4,704	4,851
Non-current operating lease liabilities	$ 14,243	$ 17,332