Quarterly Results (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value Adjustment of Warrants	$ 100	$ 33,500	$ 100	$ 40,400
Income Tax (Expense) Benefit, Continuing Operations, Government Grants		38,300		66,300
REVENUES	509,668	409,872	995,528	785,960
Net earnings from continuing operations	54,210	$ 79,869	104,006	122,159
EARNINGS (LOSS) FROM DISCONTINUED OPERATIONS, NET OF TAXES	$ 882		$ 882	$ 65
WEIGHTED AVERAGE SHARES [Abstract]
Basic (in shares)	73,980	68,206	73,934	63,851
Diluted (in shares)	89,449	72,964	89,098	73,849
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)	$ 0.73	$ 1.17	$ 1.41	$ 1.91
Diluted (in dollars per share)	$ 0.61	$ 0.74	$ 1.18	$ 1.23
ACMI Services [Member]
REVENUES	$ 347,498	$ 273,301	$ 677,588	$ 520,432