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v3.23.3

Cash Equivalents and Marketable Securities (Details) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 USD ($) security | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | $ 447,866,000 |  | $ 440,972,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 22,000 |  | 19,000
Gross Unrealized Losses | (1,474,000) |  | (3,620,000)
Fair Value | $ 446,414,000 |  | 437,371,000
Number of securities in an unrealized loss position for more than 12 months | security | 0 |  |
Number of noncurrent securities | security | 29 |  |
Noncurrent marketable securities | $ 96,797,000 |  | 93,097,000
Realized gains (losses) on available-for-sale securities | 0 | $ 0 |
Government agency securities |  |  |
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | 171,404,000 |  | 161,902,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 0 |  | 11,000
Gross Unrealized Losses | (1,197,000) |  | (2,556,000)
Fair Value | 170,207,000 |  | 159,357,000
U.S. Treasuries |  |  |
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | 143,261,000 |  | 50,019,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 22,000 |  | 3,000
Gross Unrealized Losses | (12,000) |  | (229,000)
Fair Value | 143,271,000 |  | 49,793,000
Money market funds |  |  |
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | 82,537,000 |  | 141,522,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 0 |  | 0
Gross Unrealized Losses | 0 |  | 0
Fair Value | 82,537,000 |  | 141,522,000
Corporate notes/bonds |  |  |
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | 38,066,000 |  | 57,575,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 0 |  | 2,000
Gross Unrealized Losses | (254,000) |  | (694,000)
Fair Value | 37,812,000 |  | 56,883,000
Commercial paper |  |  |
Cash Equivalents and Marketable Securities |  |  |
Amortized Cost | 12,598,000 |  | 29,954,000
Allowance for Credit Losses | 0 |  | 0
Gross Unrealized Gains | 0 |  | 3,000
Gross Unrealized Losses | (11,000) |  | (141,000)
Fair Value | $ 12,587,000 |  | $ 29,816,000

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