Warranties (Tables)

12 Months Ended

Dec. 30, 2017

Product Warranties Disclosures [Abstract]

Components of the warranty accrual

Components of the warranty accrual, which were included in the accompanying consolidated balance sheets with other current liabilities, were as follows (in thousands):

	Years Ended
	December 30, 2017			December 31, 2016
Balance as of beginning of period	$	3,838		$	4,504
Accruals for warranties issued during period		5,247			4,509
Settlements during the period		(4,222	)		(5,175	)
Balance as of end of period	$	4,863		$	3,838