Segment Information (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segments	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
REVENUES	$ 1,734,282	$ 1,570,575	$ 1,452,183
Deferred Revenue, Revenue Recognized	3,000	2,800
Deferred Revenue	$ 8,300	3,000
Number of reportable segments (in segments) | segments	2
Interest expense	$ 58,790	62,893	66,644
Deposit Contracts, Assets	800	0
Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	1,734,282	1,570,575	1,452,183
ACMI Services [Member]
Segment Reporting Information [Line Items]
REVENUES	1,185,128	1,147,279	1,078,288
Interest expense	18,066	20,542	24,950
Property, Plant and Equipment, Additions	86,500
Operating Leases, Income Statement, Lease Revenue	13,200	13,200	9,500
ACMI Services [Member] | Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	1,185,113	1,147,252	1,078,143
CAM [Member]
Segment Reporting Information [Line Items]
REVENUES	370,287	308,661	285,276
Interest expense	38,160	39,304	38,300
Property, Plant and Equipment, Additions	415,800
non lease revenue	18,600	6,200
CAM [Member] | Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	273,288	205,047	168,106
Geographic Distribution, Foreign [Member] | Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	701,900	$ 699,200	$ 716,900
Flight Equipment [Member]
Segment Reporting Information [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	250,800
Operating Leases, Future Minimum Payments Receivable, in Two Years	206,300
Operating Leases, Future Minimum Payments Receivable, in Three Years	156,300
Operating Leases, Future Minimum Payments Receivable, in Four Years	146,400
Operating Leases, Future Minimum Payments Receivable, in Five Years	128,300
Operating Leases, Future Minimum Payments Receivable, Thereafter	$ 311,300