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Public Offerings (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 12 Months Ended 0 Months Ended
Aug. 14, 2012
Sep. 28, 2013
Sep. 29, 2012
Sep. 24, 2011
Aug. 06, 2013
Senior Note Due 2021 [Member]
Aug. 02, 2013
Senior Note Due 2021 [Member]
May 17, 2013
Public Offering [Member]
May 22, 2013
Over Allotment Option [Member]
Sale of Partnership Units [Line Items]                
Number of common units sold (in units) 6,300,000           2,700,000 405,000
Price per common unit sold in a public offering (in dollars per unit)             $ 48.16 $ 48.16
Proceeds received from public offering, net   $ 143,444 $ 259,842 $ 0     $ 124,684 $ 18,760
Repayments of borrowings         $ 23,863 $ 133,400