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Product Warranties (Tables)
 3 Months Ended
Mar. 31, 2012
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability Table
Activity associated with warranty obligations was as follows during the periods noted:

 
 
Three Months Ended
(In thousands)
 
March 31, 2012
 
April 2, 2011
Balance at beginning of period
 
$
12,910

 
$
12,930

Accruals for warranties issued during period
 
3,772

 
4,660

Adjustments related to pre-existing warranties
 
206

 
(200
)
Settlements made during the period
 
(4,035
)
 
(4,631
)
Balance at end of period
 
$
12,853

 
$
12,759