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Cash, cash equivalents, and short-term marketable securities - Narrative (Details) | 9 Months Ended
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Sep. 30, 2024 USD ($) security | Sep. 30, 2023 USD ($)
Investments, Debt and Equity Securities [Abstract] |  |
Number of securities in unrealized loss position | security | 2 |
Value of securities in an unrealized loss position | $ | $ 17,700,000 |
Securities in unrealized loss position greater than 12 months | security | 0 |
Charges for credit-related impairments | $ | $ 0 | $ 0

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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-4 + Details
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- Definition Amount, excluding accrued interest, of increase (decrease) in allowance for credit loss of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 + Details
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