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Fair Value Measures and Disclosures (Tables)
9 Months Ended
Oct. 02, 2021
Fair Value Disclosures [Abstract]  
Fair value, assets measured on recurring basis
The following tables sets forth the Company’s financial assets measured at fair value on a recurring basis based on the three-tier fair value hierarchy (in thousands):
As of October 2, 2021Level 1Level 2Total
Money market funds$6,007 $— $6,007 
U.S. government securities1,520 — 1,520 
Commercial paper— 141,433 141,433 
U.S. government agency securities— 3,891 3,891 
Corporate debt securities— 3,772 3,772 
Municipal securities— 1,475 1,475 
$7,527 $150,571 $158,098 

As of December 31, 2020Level 1
Money market funds$10,068 
U.S. government securities92,976 
$103,044