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Warranty Reserves (Tables)
 6 Months Ended
Jul. 02, 2017
Product Warranties Disclosures [Abstract]  
Warranty Reserve Activity
A summary of warranty reserve activity for the three and six months ended July 2, 2017 and July 3, 2016 is as follows:
 
Three Months Ended
 
Six Months Ended
 
July 2,
2017
 
July 3,
2016
 
July 2,
2017
 
July 3,
2016
 
(In thousands)
Balance at beginning of period
$
8,937

 
$
9,751

 
$
9,012

 
$
9,843

Provision charged to income
3,391

 
3,793

 
6,380

 
7,452

Payments
(3,412
)
 
(3,699
)
 
(7,137
)
 
(7,614
)
Adjustments to previously provided warranties, net
(24
)
 
(182
)
 
515

 
(249
)
Foreign currency translation and acquisitions
196

 
(67
)
 
318

 
164

Balance at end of period
$
9,088

 
$
9,596

 
$
9,088

 
$
9,596