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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Dec. 29, 2018	Dec. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income/(loss)	$ 7,517	$ (69,528)
Other comprehensive (loss)/income:
Foreign currency translation adjustment	(979)	2,370
Unrecognized actuarial gain on pension plan, net of tax	4	12
Foreign currency translation and pension plan, net of tax	(975)	2,382
Derivatives designated as hedging instruments:
Unrealized (loss)/gain on derivative instruments, net of tax	(72)	489
Reclassification adjustment for loss/(gain) on derivative instruments recognized, net of tax	865	(1,046)
Net decrease/(increase) from derivatives designated as hedging instruments, net of tax	793	(557)
Total other comprehensive (loss)/income	(182)	1,825
Comprehensive income/(loss)	$ 7,335	$ (67,703)

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