Product Warranties (Tables)

3 Months Ended

Dec. 31, 2016

Product Warranties Disclosures [Abstract]

Summary of Activity in Warranty Accrual

	Three Months Ended
	December 31, 2016			January 2, 2016
Warranty accrual at beginning of period	$	21,363		$	18,660
Warranties issued during current year	3,414			2,418
Adjustments to pre-existing warranties	(265		)	(134		)
Reductions for settling warranties	(1,044		)	(1,253		)
Foreign currency translation	(585		)	(300		)
Warranty accrual at end of period	$	22,883		$	19,391