Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Sep. 29, 2012	Dec. 24, 2011	Mar. 08, 2010
Components of long-term debt
Total	$ 450,755	$ 449,814	$ 460,674
Less current portion	(309)	(331)	(328)
Long-term portion	450,446	449,483	460,346
Senior subordinated notes, net of unamortized discount, interest at 8.25%, payable semi-annually, principal due March 2018 [Member]
Components of long-term debt
Total	449,337	449,312	400,000	400,000
Revolving credit facility, interest at Alternate Base Rate plus a margin [Member]
Components of long-term debt
Total	1,000	0	60,000
Other notes payable [Member]
Components of long-term debt
Total	$ 418	$ 502	$ 674