Derivatives - Schedule of the Effect of Derivative Instruments on the Statements of Operations (Details) - Derivatives designated as hedging instruments - Derivatives in Cash Flow Hedging Relationships - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) (OCI) on Derivatives (Effective Portion)	$ 0	$ (11)
Forward currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) (OCI) on Derivatives (Effective Portion)	$ 2,714	$ (5,218)