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Warranty Costs (Tables)
6 Months Ended
Jul. 03, 2021
Notes To Financial Statements [Abstract]  
Product Warranty Table Disclosure
A rollforward of the warranty reserve is as follows (in thousands):
 Six Months Ended
 Jul 3, 2021
Balance as of January 2, 2021$69,667 
Warranty expense36,536 
Warranty claims(29,831)
Balance as of July 3, 2021$76,372