Derivative Financial Instruments (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 24, 2012	Mar. 30, 2013	Mar. 24, 2012
Net gains (losses) on derivative instruments
Net gains (losses) on financial instruments not designated as hedges	$ 3,471	$ (2,112)	$ 4,575	$ (3,246)
Foreign currency forward contracts
Net gains (losses) on derivative instruments
Gain (loss) on hedging derivatives	(10)		(10)	(29)
Gain (loss) on hedged items	10		10	29
Cross currency swap
Net gains (losses) on derivative instruments
Net gains (losses) on financial instruments not designated as hedges	3,471	(2,076)	4,575	(3,213)
Interest rate cap
Net gains (losses) on derivative instruments
Net gains (losses) on financial instruments not designated as hedges		$ (36)		$ (33)