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Product Warranties (Tables)
 9 Months Ended
Oct. 03, 2015
Product Warranties Disclosures [Abstract]  
Activity Associated with Warranty Obligations
Activity associated with warranty obligations was as follows during the periods noted:
 
 
Nine Months Ended
(In thousands)
 
October 3, 2015
 
September 27, 2014
Balance at beginning of period
 
$
16,719

 
$
13,840

Accruals for warranties issued during period
 
14,764

 
11,577

Adjustments related to pre-existing warranties
 
(230
)
 
(54
)
Settlements made during the period
 
(15,372
)
 
(10,901
)
Balance at end of period
 
$
15,881

 
$
14,462