CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 13,477	$ 7,517
Other comprehensive income/(loss):
Foreign currency translation adjustment	2,514	(979)
Unrecognized actuarial (loss)/gain on pension plan, net of tax	(25)	4
Foreign currency translation and pension plan, net of tax	2,489	(975)
Derivatives designated as hedging instruments:
Unrealized gain/(loss) on derivative instruments, net of tax	607	(72)
Reclassification adjustment for loss on derivative instruments recognized, net of tax	197	865
Net increase from derivatives designated as hedging instruments, net of tax	804	793
Total other comprehensive gain/(loss)	3,293	(182)
Comprehensive income	$ 16,770	$ 7,335