Segment Information (Narrative) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segments	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
REVENUES	$ 509,668	$ 409,872	$ 995,528	$ 785,960
Deferred Revenue, Revenue Recognized	3,300	1,000	3,900	2,700
Deferred Revenue	11,100		$ 11,100		$ 8,300
Number of reportable segments (in segments) | segments			2
Interest expense	9,461	15,021	$ 20,860	29,543
Deposit Contracts, Assets	0		0		$ 800
Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	509,668	409,872	995,528	785,960
ACMI Services [Member]
Segment Reporting Information [Line Items]
REVENUES	347,498	273,301	677,588	520,432
Interest expense	2,648	4,473	6,026	8,996
Property, Plant and Equipment, Additions			47,600
ACMI Services [Member] | Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	347,477	273,295	677,562	520,422
CAM [Member]
Segment Reporting Information [Line Items]
REVENUES	109,674	88,594	216,579	171,871
Interest expense	6,224	9,669	13,929	18,895
Property, Plant and Equipment, Additions			246,900
non lease revenue	7,400	4,600	17,300	7,000
CAM [Member] | Customer Revenues [Member]
Segment Reporting Information [Line Items]
REVENUES	80,800	$ 66,676	157,491	$ 127,476
Flight Equipment [Member]
Segment Reporting Information [Line Items]
Operating Leases, Future Minimum Payments Receivable, Current	140,200		140,200
Operating Leases, Future Minimum Payments Receivable, in Two Years	237,400		237,400
Operating Leases, Future Minimum Payments Receivable, in Three Years	187,400		187,400
Operating Leases, Future Minimum Payments Receivable, in Four Years	175,300		175,300
Operating Leases, Future Minimum Payments Receivable, in Five Years	157,200		157,200
Operating Leases, Future Minimum Payments Receivable, Thereafter	$ 361,900		$ 361,900