Basis of Presentation - Additional Information (Details) $ in Thousands	3 Months Ended
	Dec. 24, 2016 USD ($) wk	Sep. 24, 2016 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Limited partner interest in the Operating Partnership (in hundredths)	100.00%
Minimum number of weeks in the fiscal year reporting calendar	52
Maximum number of weeks in the fiscal year reporting calendar	53
Minimum number of weeks in a fiscal quarter	13
Maximum number of weeks in a fiscal quarter	14
Deferred debt issuance costs | $	$ 16,710	$ 17,391
Senior Notes [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Deferred debt issuance costs | $	$ 13,200	$ 13,670	[1]

[1] Long-term borrowings as of September 24, 2016 reflect the retrospective impact from the adoption of new accounting guidance regarding the balance sheet classification of debt issuance costs (See Note 2).