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Fair Value Measurements (Tables)
6 Months Ended
Jul. 02, 2021
Fair Value Disclosures [Abstract]  
Schedule of Classification of Financial Assets Measured and Recorded at Fair Value on a Recurring Basis
The classifications within the fair value hierarchy of our financial assets that were measured and recorded at fair value on a recurring basis were as follows (in thousands):
June 30, 2021
Level 1
Level 2
Total
Commercial paper$— $717,057 $717,057 
Corporate bonds— 492,142 492,142 
U.S. Treasury and government-sponsored enterprises— 132,066 132,066 
Municipal bonds— 14,298 14,298 
Total debt securities available-for-sale— 1,355,563 1,355,563 
Money market funds179,306 — 179,306 
Certificates of deposit— 115,706 115,706 
Total financial assets carried at fair value$179,306 $1,471,269 $1,650,575 
December 31, 2020
Level 1
Level 2
Total
Commercial paper$— $569,828 $569,828 
Corporate bonds— 548,757 548,757 
U.S. Treasury and government-sponsored enterprises— 208,554 208,554 
Municipal bonds— 28,762 28,762 
Total debt securities available-for-sale— 1,355,901 1,355,901 
Money market funds40,761 — 40,761 
Certificates of deposit— 60,004 60,004 
Total financial assets carried at fair value$40,761 $1,415,905 $1,456,666