Note 13 - Segment Information - Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 12,829,665	$ 14,813,999	$ 12,168,302
Operating Segments [Member]
Revenues	12,848,000	14,848,000	12,208,000
Operating Segments [Member] | JBI [Member]
Revenues	6,208,000	7,022,000	5,454,000
Operating Segments [Member] | DCS [Member]
Revenues	3,543,000	3,524,000	2,706,000
Operating Segments [Member] | ICS [Member]
Revenues	1,390,000	2,323,000	2,471,000
Operating Segments [Member] | FMS [Member]
Revenues	918,000	1,042,000	909,000
Operating Segments [Member] | JBT [Member]
Revenues	789,000	937,000	668,000
Intersegment Eliminations [Member]
Revenues	$ (18,000)	$ (34,000)	$ (40,000)