Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 24, 2016
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	$ 525,663	$ 525,663
Accumulated amortization	(305,787)	(249,334)
Other intangible assets, net	219,876	276,329
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	492,656	492,656
Accumulated amortization	(279,287)	(225,634)
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	31,040	31,040
Accumulated amortization	(25,242)	(22,533)
Other [Member]
Finite Lived Intangible Assets [Line Items]
Other intangible assets, gross	1,967	1,967
Accumulated amortization	$ (1,258)	$ (1,167)