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Warranty Costs (Tables)
3 Months Ended
Apr. 03, 2021
Notes To Financial Statements [Abstract]  
Product Warranty Table Disclosure
A rollforward of the warranty reserve is as follows (in thousands):
 Three Months Ended
 Apr 3, 2021
Balance as of January 2, 2021$69,667 
Warranty expense20,881 
Warranty claims(15,454)
Balance as of April 3, 2021$75,094