Note 9 - Business Segments (Details) - Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 2,712,434	$ 2,464,641
JBI [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	1,618,000	1,443,000
DCS [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	682,000	586,000
ICS [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	68,000	55,000
JBT [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	161,000	185,000
Corporate and Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Assets	$ 183,000	$ 196,000