Accumulated Other Comprehensive Income (Loss) (Activity and Classification of Derivative Deferral in AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Derivative Instruments, Gain (Loss)
Net gain (loss)	$ (1,023)	$ (83)	$ (603)	$ (1,429)
Tax effect	247	77	(37)	453
Net deferral in AOCIL of derivatives	(776)	(6)	(640)	(976)
Foreign Currency Contracts
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	(1,246)	68	(2,073)	(2,041)
Interest Rate Swaps
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	$ 223	$ (151)	$ 1,470	$ 612