Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net (loss) income including noncontrolling interests	$ (78,115)	$ 29,168	$ (26,847)	$ 74,192
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of tax	(22,430)	(7,199)	(40,197)	12,986
Foreign currency hedge, net of tax		170	93	(44)
Other comprehensive (loss) income	(22,430)	(7,029)	(40,104)	12,942
Comprehensive (loss) income including noncontrolling interests	(100,545)	22,139	(66,951)	87,134
Net income attributable to noncontrolling interests	(270)	(114)	(495)	(244)
Foreign currency translation adjustments, net of tax	33	11	66	(3)
Comprehensive income attributable to noncontrolling interests	(237)	(103)	(429)	(247)
Comprehensive (loss) income attributable to Tetra Tech	$ (100,782)	$ 22,036	$ (67,380)	$ 86,887

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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