Note 10 - Business Segments (Details) - Operating Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	$ 159,230	$ 147,407	$ 276,537	$ 272,446
Operating Segments [Member] | JBI [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	113,400	110,700	206,600	207,500
Operating Segments [Member] | DCS [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	30,300	29,700	45,900	51,700
Operating Segments [Member] | ICS [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	6,200	4,200	12,300	9,300
Operating Segments [Member] | JBT [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	9,400	2,900	11,800	4,000
Operating Segments [Member] | Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating Income	$ (100)	$ (100)	$ (100)	$ (100)