Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			3 Months Ended
	Dec. 28, 2013	Dec. 28, 2013 Domestic	Sep. 28, 2013 Domestic	Dec. 28, 2013 Canada
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 788,184	$ 369,353	$ 369,353	$ 418,831
Foreign currency effect	(15,837)			(15,837)
Balance at the end of the period	$ 772,347	$ 369,353	$ 369,353	$ 402,994