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Fair Value (Tables)
9 Months Ended
Oct. 02, 2021
Fair Value Disclosures [Abstract]  
Schedule of fair value measurements
The following table presents the items measured at fair value as of October 2, 2021 and December 31, 2020:

 Fair Value
October 2, 2021December 31, 2020
Cash and cash equivalents:
Money market fund (Level 1)$— 197,835 
Short-term investments:
Short-term investments (Level 1) (1)
— 571,741 
(1) The Company’s short-term investments at December 31, 2020 consisted of short-duration bond funds and managed income funds that are designed to deliver current income consistent with the preservation of capital through investing in high-and medium grade fixed income securities. The investments were readily convertible into cash.