Note 10 - Operating Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Operating Segments [Member] | JBI [Member]
Revenues	$ 933,000	$ 905,000	$ 1,829,000	$ 1,749,000
Operating Segments [Member] | DCS [Member]
Revenues	383,000	367,000	741,000	712,000
Operating Segments [Member] | ICS [Member]
Revenues	204,000	174,000	387,000	337,000
Operating Segments [Member] | JBT [Member]
Revenues	98,000	97,000	194,000	188,000
Operating Segments [Member]
Revenues	1,618,000	1,543,000	3,151,000	2,986,000
Intersegment Eliminations [Member]
Revenues	(3,000)	(3,000)	(7,000)	(6,000)
Revenues	$ 1,615,026	$ 1,539,957	$ 3,143,738	$ 2,980,137