Note 10 - Business Segments (Details) - Depreciation and Amortization - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	$ 83,661	$ 71,726	$ 165,038	$ 140,693
JBI [Member] | Operating Segments [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	36,400	31,400	71,500	61,900
DCS [Member] | Operating Segments [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	32,700	28,600	64,500	56,300
ICS [Member] | Operating Segments [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	300	200	600	400
JBT [Member] | Operating Segments [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	10,400	7,700	20,600	14,700
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization expense	$ 3,900	$ 3,800	$ 7,800	$ 7,400