Investments and fair value measurements - Summary of Investments on Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Marketable securities:	$ 357,015	$ 354,436
Cash
Current assets:
Marketable securities:	43,700	42,300
Level 1
Current assets:
Total assets	145,918	146,580
Level 1 | U.S. government securities
Current assets:
Marketable securities:	0	0
Level 1 | Money market funds
Current assets:
Cash equivalents	136,085	136,771
Level 1 | Time deposits
Current assets:
Cash equivalents	9,833	9,809
Level 1 | U.S. government securities
Current assets:
Cash equivalents		0
Level 2
Current assets:
Total assets	167,398	165,530
Level 2 | U.S. government securities
Current assets:
Marketable securities:	167,398	163,844
Level 2 | Money market funds
Current assets:
Cash equivalents	0	0
Level 2 | Time deposits
Current assets:
Cash equivalents	0	0
Level 2 | U.S. government securities
Current assets:
Cash equivalents		1,686
Level 3
Current assets:
Total assets	0	0
Level 3 | U.S. government securities
Current assets:
Marketable securities:	0	0
Level 3 | Money market funds
Current assets:
Cash equivalents	0	0
Level 3 | Time deposits
Current assets:
Cash equivalents	$ 0	0
Level 3 | U.S. government securities
Current assets:
Cash equivalents		$ 0