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CASH EQUIVALENTS AND MARKETABLE SECURITIES (Tables)
 9 Months Ended
Sep. 30, 2023
Cash and Cash Equivalents [Abstract]  
Debt Securities, Available-for-sale
The cash equivalents and marketable securities consist of the following:
As of September 30, 2023
Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueCash EquivalentsMarketable Securities
(In thousands)
Money market funds$112,659 $— $— $112,659 $112,659 $— 
Certificates of deposit53,415 14 (51)53,378 — 53,378 
Commercial paper90,886 — (233)90,653 — 90,653 
Corporate notes and bonds360,042 43 (2,696)357,389 — 357,389 
U.S. Treasuries465,322 22 (501)464,843 — 464,843 
U.S. Government agency securities530,140 209 (2,803)527,546 — 527,546 
Total$1,612,464 $288 $(6,284)$1,606,468 $112,659 $1,493,809 
As of December 31, 2022
Amortized CostGross Unrealized GainsGross Unrealized LossesFair ValueCash EquivalentsMarketable Securities
(In thousands)
Money market funds$165,407 $— $— $165,407 $165,407 $— 
Certificates of deposit31,874 13 (130)31,757 — 31,757 
Commercial paper148,832 10 (171)148,671 50,764 97,907 
Corporate notes and bonds168,887 2 (3,313)165,576 — 165,576 
U.S. Treasuries301,349 8 (132)301,225 4,094 297,131 
U.S. Government agency securities554,035 — (6,807)547,228 — 547,228 
Total$1,370,384 $33 $(10,553)$1,359,864 $220,265 $1,139,599 
Investments Classified by Contractual Maturity Date
The following table summarizes the contractual maturities of the Company’s cash equivalents and marketable securities as of September 30, 2023:
Amortized CostFair Value
(In thousands)
Due within one year$1,266,174 $1,262,017 
Due within one to three years346,290 344,451 
Total$1,612,464 $1,606,468