Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Consolidated Statements of Comprehensive Income (unaudited) [Abstract]
Net income	$ 11,061	$ 11,157	$ 24,844	$ 26,696
Other comprehensive (loss) income, net of tax:
Foreign currency translation	(3,584)	772	(3,383)	(771)
Derivative instruments:
Unrealized net gain (loss)	1,435	(120)	2,239	125
Net (gain) loss reclassified to earnings	(581)	(56)	(480)	307
Defined benefit pension plan:
Unrealized net (loss) gain	(122)	(69)	30	85
Net loss reclassified to earnings	91	14	181	28
Currency exchange rate change	180	(54)	46	18
Other comprehensive (loss) income	(2,581)	487	(1,367)	(208)
Comprehensive income	$ 8,480	$ 11,644	$ 23,477	$ 26,488