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Fair value of financial instruments and marketable securities - Marketable Securities, Balance Sheet Disclosures (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Debt Securities, Available-for-sale [Line Items] |  |
Marketable securities, Less Than 12 Months | $ 306,079 | $ 260,104
Commercial paper |  |
Debt Securities, Available-for-sale [Line Items] |  |
Marketable securities, Less Than 12 Months | 131,985 | 117,160
Corporate debt securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Marketable securities, Less Than 12 Months |  | 1,648
Government obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Marketable securities, Less Than 12 Months | $ 174,094 | $ 141,296

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