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Warranties (Tables)
 6 Months Ended
Jul. 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

 

 

Six Months Ended

 

 

 

July 1, 2017

 

 

June 25, 2016

 

 

July 1, 2017

 

 

June 25, 2016

 

Balance as of beginning of period

 

$

4,244

 

 

$

4,377

 

 

$

3,838

 

 

$

4,504

 

Accruals for warranties issued during period

 

 

1,411

 

 

 

1,368

 

 

 

2,780

 

 

 

2,429

 

Settlements during the period

 

 

(1,053

)

 

 

(1,189

)

 

 

(2,016

)

 

 

(2,377

)

Balance as of end of period

 

$

4,602

 

 

$

4,556

 

 

$

4,602

 

 

$

4,556