Quarterly Results (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Fair Value Adjustment of Warrants	$ 100,000	$ (9,600,000)	$ 200,000	$ 30,800,000
Income Tax (Expense) Benefit, Continuing Operations, Government Grants	0	(30,322,000)	0	(96,626,000)
REVENUES	516,916,000	465,955,000	1,512,444,000	1,251,915,000
Net earnings from continuing operations	50,188,000	62,363,000	154,194,000	184,522,000
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES	$ 854,000	$ 2,309,000	$ 1,736,000	$ 2,374,000
WEIGHTED AVERAGE SHARES [Abstract]
Basic (in shares)	73,998	73,721	73,956	67,177
Diluted (in shares)	88,746	76,743	88,980	75,277
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)	$ 0.68	$ 0.85	$ 2.08	$ 2.75
Diluted (in dollars per share)	$ 0.57	$ 0.81	$ 1.76	$ 2.14
ACMI Services [Member]
REVENUES	$ 357,375,000	$ 330,906,000	$ 1,034,963,000	$ 851,338,000