Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 42,009	$ 57,806	$ 51,556
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(5,099)	585	(2,123)
Derivative instruments:
Unrealized net gain (loss)	1,112	1,349	(291)
Net (gain) loss reclassified to earnings	(691)	(464)	499
Defined benefit pension plan:
Unrealized net (loss) gain	(2,553)	(128)	(3,654)
Net loss reclassified to earnings	324	363	54
Currency exchange rate change	394	(269)	127
Other comprehensive (loss) income	(6,513)	1,436	(5,388)
Comprehensive income	$ 35,496	$ 59,242	$ 46,168