Fair value of financial instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	$ 36,250	$ 162,260
Marketable securities	256,640	146,902
Total Financial Assets	292,890	309,162
Money market funds
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	19,792	155,367
Commercial paper
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds		1,996
Marketable securities	42,907	51,498
U.S. Treasuries
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	16,458	4,897
Marketable securities	56,552
U.S. Government agencies
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Marketable securities	78,250	28,398
Corporate bonds
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Marketable securities	78,931	67,006
Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	19,792	155,367
Total Financial Assets	19,792	155,367
Level 1 \| Money market funds
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	19,792	155,367
Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	16,458	6,893
Marketable securities	256,640	146,902
Total Financial Assets	273,098	153,795
Level 2 \| Commercial paper
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds		1,996
Marketable securities	42,907	51,498
Level 2 \| U.S. Treasuries
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash equivalents - money market funds	16,458	4,897
Marketable securities	56,552
Level 2 \| U.S. Government agencies
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Marketable securities	78,250	28,398
Level 2 \| Corporate bonds
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Marketable securities	$ 78,931	$ 67,006

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481830/320-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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