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		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Forward currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive (Loss) Income (OCL) on Derivatives (Effective Portion)	$ (2,856)	$ 1,921	$ 3,483	$ (2,122)
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive (Loss) Income (OCL) on Derivatives (Effective Portion)	$ 0	$ (11)	$ 0	$ (10)