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Warranty Reserves (Tables)
 3 Months Ended
Mar. 29, 2015
Product Warranties Disclosures [Abstract]  
Schedule of Warranty Reserve Activity
The following is a summary of warranty reserve activity (in thousands):
 
Thirteen Weeks Ended
 
March 29,
2015
 
March 30,
2014
Balance, beginning of period
$
13,005

 
$
12,705

Reductions for warranty costs incurred
(3,200
)
 
(2,779
)
Warranties issued
3,676

 
3,333

Translation and changes in estimates
(334
)
 
5

Balance, end of period
$
13,147

 
$
13,264