Accumulated Other Comprehensive Income (Loss) (Activity and Classification of Derivative Deferral in AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss)
Net gain (loss)	$ 1,445	$ (1,092)
Tax effect	(540)	378
Net deferral in AOCIL of derivatives	905	(714)
Foreign Currency Contracts
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	828	(1,786)
Interest Rate Swaps
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	$ 617	$ 694