Note 9 - Business Segments (Detail) - Operating Income (Loss) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Segment Operating Income (Loss)	$ 113,443	$ 91,347	$ 203,266	$ 158,787
JBI [Member]
Segment Operating Income (Loss)	76,500	59,500	139,200	107,000
DCS [Member]
Segment Operating Income (Loss)	27,400	22,300	46,000	40,700
JBT [Member]
Segment Operating Income (Loss)	6,900	7,200	12,800	7,800
ICS [Member]
Segment Operating Income (Loss)	2,600	2,200	5,200	3,300
Other Including Corporate [Member]
Segment Operating Income (Loss)		100	100
Total [Member]
Segment Operating Income (Loss)	$ 113,400	$ 91,300	$ 203,300	$ 158,800