Note 9 - Business Segments (Detail) - Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Segment Assets	$ 2,438,342	$ 2,267,332
JBI [Member]
Segment Assets	1,462,000	1,273,000
DCS [Member]
Segment Assets	543,000	488,000
JBT [Member]
Segment Assets	217,000	250,000
ICS [Member]
Segment Assets	54,000	42,000
Corporate and Other [Member]
Segment Assets	$ 162,000	$ 214,000