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Fair Value of Financial Instruments (Tables)
 3 Months Ended
Mar. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of Fair Values of Financial Instruments Measured on a Recurring Basis
The fair values of the financial instruments we measure at fair value on a recurring basis are as follows (in thousands):
March 31, 2024
Level 1Level 2Level 3Total
Cash equivalents:
Money market funds$1,332,610 $— $— $1,332,610 
Commercial paper— 116,808 — 116,808 
U.S. treasury securities21,809 — — 21,809 
Marketable securities:
Corporate bonds— 457,432 — 457,432 
Commercial paper— 257,031 — 257,031 
U.S. treasury securities250,212 — — 250,212 
Certificates of deposit— 137,278 — 137,278 
Non-U.S. government and supranational bonds— 9,013 — 9,013 
U.S. agency bonds— 33,294 — 33,294 
Prepaid expenses and other current assets:
Certificates of deposit— 1,695 — 1,695 
Restricted cash:
Certificates of deposit— 4,054 — 4,054 
December 31, 2023
Level 1Level 2Level 3Total
Cash equivalents:
Money market funds$1,032,675 $— $— $1,032,675 
Commercial paper— 106,268 — 106,268 
Certificates of deposit— 1,551 — 1,551 
Corporate bonds— 859 — 859 
Marketable securities:
Corporate bonds— 427,957 — 427,957 
Commercial paper— 201,145 — 201,145 
U.S. treasury securities336,356 — — 336,356 
Certificates of deposit— 132,457 — 132,457 
Non-U.S. government and supranational bonds— 8,983 — 8,983 
U.S. agency bonds— 42,250 — 42,250 
Prepaid expenses and other current assets:
Certificates of deposit— 2,542 — 2,542 
Restricted cash:
Certificates of deposit— 4,054 — 4,054 
Schedule of Fair Value of Marketable Securities by Contractual Maturity
The fair value of our marketable securities by contractual maturity is as follows (in thousands):
March 31, 2024
Due in one year or less $848,270 
Due after one to five years 295,990 
Total $1,144,260