Basis of Presentation and Preparation (Details 5) (USD $)	3 Months Ended								12 Months Ended
	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Jan. 01, 2012	Sep. 29, 2013	Sep. 30, 2012	Oct. 02, 2011
Income taxes
Increase in the income tax expense for out-of-period adjustment									$ 14,038,000	$ 56,064,000	$ 47,510,000
Increase in, net loss expense for out-of-period adjustment	(25,200,000)	78,385,000	(24,820,000)	(26,224,000)	(30,432,000)	(29,054,000)	(22,284,000)	(22,610,000)	2,141,000	(104,380,000)	(90,039,000)
Prior year adjustment
Income taxes
Increase in the income tax expense for out-of-period adjustment	3,300,000
Increase in, net loss expense for out-of-period adjustment	3,300,000
Net income, if prior period adjustments had been recorded in the appropriate periods	$ 1,100,000