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Goodwill (Notes)
 3 Months Ended
Apr. 04, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The changes in the carrying value of goodwill were as follows (in thousands):
Balance as of December 31, 2020$244,078 
  Foreign exchange rate changes(1,042)
Balance as of April 4, 2021$243,036