Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 808,076	$ 789,305
Foreign currency effect	(19,892)	18,771
Balance at the end of the period	788,184	808,076
Domestic
Changes in the carrying amount of goodwill
Balance at the beginning of the period		386,416
Reassignment of Timothy's goodwill		(17,063)
Balance at the end of the period	369,353	369,353
Canada
Changes in the carrying amount of goodwill
Balance at the beginning of the period	438,723	402,889
Reassignment of Timothy's goodwill		17,063
Foreign currency effect	(19,892)	18,771
Balance at the end of the period	$ 418,831	$ 438,723