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Cash, cash equivalents and marketable securities - Portfolio of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	$ 99,393	$ 155,975
Unrealized gains	3	19
Unrealized losses	(195)	(985)
Fair value	99,201	155,009
Certificates of deposit
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	8,914	28,197
Unrealized gains	2	6
Unrealized losses	(4)	(92)
Fair value	8,912	28,111
Commercial paper
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	44,836	58,572
Unrealized gains		12
Unrealized losses	(18)	(72)
Fair value	44,818	58,512
Corporate debt securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	20,064	67,206
Unrealized gains	1	1
Unrealized losses	(31)	(786)
Fair value	20,034	66,421
U.S. government securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	17,589	2,000
Unrealized losses	(126)	(35)
Fair value	17,463	$ 1,965
U.S. government agency securities
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized cost	7,990
Unrealized losses	(16)
Fair value	$ 7,974

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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