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Warranty Reserves (Tables)
 6 Months Ended
Jul. 01, 2012
Product Warranties Disclosures [Abstract]  
Warranty Reserve Activity
Warranty reserve activity for the three and six months ended July 1, 2012 and July 3, 2011 is summarized below:
 
 
Three Months Ended
 
Six Months Ended
 
July 1,
2012
 
July 3,
2011
 
July 1,
2012
 
July 3,
2011
 
(In thousands)
Balance beginning of period
$
10,749

 
$
8,271

 
$
10,412

 
$
8,250

Provision charged to income
4,271

 
3,731

 
8,897

 
7,059

Payments
(4,193
)
 
(3,735
)
 
(9,040
)
 
(7,162
)
Adjustments to previously provided warranties, net
30

 
682

 
487

 
557

Foreign currency translation and acquisitions
(232
)
 
108

 
(131
)
 
353

Balance end of period
$
10,625

 
$
9,057

 
$
10,625

 
$
9,057