CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 22,066	$ 23,770	$ 47,510	$ 45,625
Foreign currency translation:
Foreign currency translation	1,047	(2,442)	(801)	(2,213)
Reclassification adjustment for currency translation losses (gains) related to the liquidation of foreign entities included in net income	0	61	0	(2,290)
Defined benefit pension plan:
Change in pension plans, net of tax of ($7), $12, $59 and $100, respectively	(23)	38	187	315
Total other comprehensive income (loss)	1,024	(2,343)	(614)	(4,188)
Total comprehensive income	$ 23,090	$ 21,427	$ 46,896	$ 41,437