Long-Term Borrowings - Summary of Long-Term Borrowings (Parenthetical) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
7.375% Senior Notes due March 15, 2020 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)	7.375%	7.375%
Maturity date	Mar. 15, 2020
Net unamortized discount	$ 0	$ 1,183
7.375% Senior Notes due August 1, 2021 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)	7.375%	7.375%
Maturity date	Aug. 01, 2021
Net unamortized premium	$ 19,927	$ 22,688
5.5% Senior Notes due June 1, 2024 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)	5.50%	5.50%
Maturity date	Jun. 01, 2024
5.75% Senior Notes due March 1, 2025 [Member]
Debt Instrument [Line Items]
Stated interest rate (in hundredths)	5.75%
Maturity date	Mar. 01, 2025
Revolving Credit Facility Due January 5, 2017 [Member]
Debt Instrument [Line Items]
Maturity date	Jan. 05, 2017