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Warranty Costs (Tables)
 9 Months Ended
Sep. 29, 2012
Notes To Financial Statements [Abstract]  
Product Warranty Table Disclosure
A rollforward of the warranty reserve is as follows:
 
Nine Months Ended
 
Sep 29, 2012
 
(in thousands)
Beginning balance
$
13,842

Warranty reserve related to acquisitions
592

Warranty expense
20,911

Warranty claims
(18,759
)
Ending balance
$
16,586