Note 10 - Segment Information (Details) - Assets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 2,819,404	[1]	$ 2,464,641	[1]	$ 2,267,000	[1]
Operating Segments [Member] | JBI [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	1,611,000	[1]	1,443,000	[1]	1,273,000	[1]
Operating Segments [Member] | DCS [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	721,000	[1]	586,000	[1]	488,000	[1]
Operating Segments [Member] | ICS [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	78,000	[1]	55,000	[1]	42,000	[1]
Operating Segments [Member] | JBT [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	164,000	[1]	185,000	[1]	250,000	[1]
Operating Segments [Member] | Corporate and Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 245,000	[1]	$ 196,000	[1]	$ 214,000	[1]

[1] Business segment assets exclude the net impact of intercompany transactions and accounts.