Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 30, 2011	Dec. 31, 2010
Net Earnings of the Group	$ 91,436	$ 66,697
Other Comprehensive Income (Loss):
Foreign currency translation adjustment	11,616	315
Gain on cash flow hedges	1,178	1,065
Change in pension liability	1,824	4,567
Other comprehensive income before taxes	14,618	5,947
Income tax expense	(836)	(1,477)
Net other comprehensive income	13,782	4,470
Net Comprehensive Income of the Group	105,218	71,167
Net Comprehensive Income Attributable to Noncontrolling Interests	(1,726)	(874)
Net Comprehensive Income Attributable to Jacobs	$ 103,492	$ 70,293