Marketable securities - Summary of marketable securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Marketable securities, current:
Fair Value	$ 220,849	$ 246,399
Marketable securities, non-current:
Fair Value	34,706	60,962
Amortized Cost	258,025	311,498
Gross Unrealized Gains	11	4
Gross Unrealized Losses	(2,481)	(4,141)
Fair Value	255,555	307,361
Corporate debt securities
Marketable securities, current:
Amortized Cost	166,148	183,270
Gross Unrealized Gains	5	2
Gross Unrealized Losses	(1,280)	(2,068)
Fair Value	164,873	181,204
Marketable securities, non-current:
Amortized Cost	29,947	53,592
Gross Unrealized Gains	2	2
Gross Unrealized Losses	(203)	(471)
Fair Value	29,746	53,123
U.S. government debt securities
Marketable securities, current:
Amortized Cost	43,993	40,986
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(872)	(1,184)
Fair Value	43,121	39,802
Marketable securities, non-current:
Amortized Cost	5,000	8,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(40)	(161)
Fair Value	4,960	7,839
U.S. Treasury securities
Marketable securities, current:
Amortized Cost	12,937	25,650
Gross Unrealized Gains	4	0
Gross Unrealized Losses	(86)	(257)
Fair Value	$ 12,855	$ 25,393