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Warranty Obligations (Tables)
6 Months Ended
Jun. 28, 2020
Product Warranties Disclosures [Abstract]  
Changes in Warranty Obligations
The changes in the warranty obligation were as follows (in thousands):
Balance as of December 31, 2019$4,713  
Provisions for warranties issued during the period1,493  
Fulfillment of warranty obligations(927) 
Balance as of June 28, 2020$5,279