Note 13 - Business Segments - Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 14,813,999	$ 12,168,302	$ 9,636,573
Operating Segments [Member]
Revenues	14,848,000	12,208,000	9,681,000
Operating Segments [Member] | JBI [Member]
Revenues	7,022,000	5,454,000	4,675,000
Operating Segments [Member] | DCS [Member]
Revenues	3,378,000	2,578,000	2,196,000
Operating Segments [Member] | ICS [Member]
Revenues	2,386,000	2,538,000	1,658,000
Operating Segments [Member] | JBT [Member]
Revenues	1,082,000	796,000	463,000
Operating Segments [Member] | FMS [Member]
Revenues	980,000	842,000	689,000
Intersegment Eliminations [Member]
Revenues	$ (34,000)	$ (40,000)	$ (44,000)