Warranties (Tables)

3 Months Ended

Apr. 01, 2017

Product Warranties Disclosures [Abstract]

Components of the warranty accrual

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

	Three Months Ended
	April 1, 2017			March 26, 2016
Balance as of beginning of period	$	3,838		$	4,504
Accruals for warranties issued during period		1,369			1,061
Settlements during the period		(963	)		(1,188	)
Balance as of end of period	$	4,244		$	4,377