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Product Warranties (Tables)
 9 Months Ended
Sep. 26, 2020
Product Warranties Disclosures [Abstract]  
Activity Associated with Warranty Obligations Activity associated with warranty obligations was as follows (in thousands):
Nine Months Ended
September 26,
2020		September 28,
2019
Balance at beginning of period$15,865 $15,450 
Accruals for warranties issued during period5,483 8,814 
Adjustments related to pre-existing warranties(272)144 
Settlements made during the period(6,013)(8,802)
Balance at end of period$15,063 $15,606 
The following table summarizes when these estimated settlements are expected to be paid (in thousands):
September 26,
2020		December 28,
2019
Current - in the next twelve months$7,448 $7,940 
Long-term - beyond one year7,615 7,925 
Total$15,063 $15,865