Long-Term Debt - Additional Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 25, 2011
Debt Instrument [Line Items]
Interest capitalized	$ 0.4	$ 0.4	$ 0.3
Interest expense incurred	46.7	48.3	57.6
Unsecured 7.375% Senior Notes due 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate	7.375%	7.375%
Debt instrument maturity year	2018	2018
Debt instrument, frequency of interest payments	semi-annually in arrears on May 15 and November 15
Unsecured 7.75% Senior Notes due 2015 [Member]
Debt Instrument [Line Items]
Stated interest rate	7.75%	7.75%
Debt instrument maturity year	2015	2015
Debt instrument, frequency of interest payments	semi-annually in arrears on April 15 and October 15
2014 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	14.5
Additional term loan paid	10.3
2015 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	$ 3.6