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Product Warranties
 9 Months Ended
Sep. 29, 2018
Product Warranties Disclosures [Abstract]  
Product Warranties Product Warranties
In the ordinary course of business, the Company warrants its products against defects in design, materials and workmanship typically over periods ranging from 12 to 60 months. The Company determines warranty reserves needed by product line based on experience and current facts and circumstances. Activity in the warranty accrual is summarized as follows: 
Nine Months Ended Three Months Ended 
(In thousands)
September 29, 2018September 30, 2017September 29, 2018September 30, 2017
Balance at Beginning of Period
$5,136 $4,675 $5,180 $4,637 
Acquisitions
— 359 — — 
Warranties Issued
2,102 1,315 801 483 
Warranties Settled
(2,219)(1,832)(934)(608)
Reassessed Warranty Exposure
(77)101 (105)106 
Balance at End of Period
$4,942 $4,618 $4,942 $4,618