Quarterly Results (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Jan. 01, 2012	Sep. 30, 2011	Jul. 03, 2011	Apr. 03, 2011	Jan. 02, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Quarterly Financial Data [Abstract]
Net sales	$ 832,576	$ 824,803	$ 746,285	$ 848,771	$ 827,329	$ 804,635	$ 693,885	$ 861,067	$ 3,252,435	$ 3,186,916	$ 2,567,011
Gross profit	279,925	291,696	260,031	284,026	280,495	293,694	255,439	299,239	1,115,678	1,128,867	921,410
Net (loss) income	$ 5,513	$ 58,649	$ (28,660)	$ 13,070	$ (33,831)	$ 28,604	$ (50,186)	$ (19,758)	$ 48,572	$ (75,171)	$ (190,107)
Earnings Per Share, Diluted	$ 0.10	$ 1.13	$ (0.56)	$ 0.25	$ (0.65)	$ 0.56	$ (0.99)	$ (0.39)	$ 0.91	$ (1.47)	$ (5.28)
Earnings Per Share, Basic	$ 0.11	$ 1.14	$ (0.56)	$ 0.25	$ (0.65)	$ 0.56	$ (0.99)	$ (0.39)	$ 0.94	$ (1.47)	$ (5.28)