Note 14 - Segment Information - Operating Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating income	$ 1,045,530	$ 713,119	$ 733,825
JBI [Member] | Operating Segments [Member]
Operating income	603,000	428,000	447,000
DCS [Member] | Operating Segments [Member]
Operating income	304,000	314,000	278,000
ICS [Member] | Operating Segments [Member]
Operating income	46,000	(45,000)	(11,000)
FMS [Member] | Operating Segments [Member]
Operating income	28,000	(1,000)	(9,000)
JBT [Member] | Operating Segments [Member]
Operating income	$ 65,000	$ 17,000	$ 29,000