Investments and fair value measurements - Summary of Investments on Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Marketable securities:	$ 354,436	$ 476,936
Strategic investments	0	10,311
Cash
Current assets:
Marketable securities:	42,300	38,900
Level 1
Current assets:
Strategic investments	0	0
Total assets	146,580	266,692
Other liabilities, non-current:
Cash settled SARs	0
Cash settled SARs	0	0
Total liabilities	0
Level 1 | U.S. government securities
Current assets:
Marketable securities:	0	0
Level 1 | Money market funds
Current assets:
Cash equivalents	136,771	266,692
Level 1 | Time deposits
Current assets:
Cash equivalents	9,809
Level 1 | U.S. government securities
Current assets:
Cash equivalents	0
Level 2
Current assets:
Strategic investments	0	0
Total assets	165,530	171,372
Other liabilities, non-current:
Cash settled SARs	0
Cash settled SARs	0	0
Total liabilities	0
Level 2 | U.S. government securities
Current assets:
Marketable securities:	163,844	171,372
Level 2 | Money market funds
Current assets:
Cash equivalents	0	0
Level 2 | Time deposits
Current assets:
Cash equivalents	0
Level 2 | U.S. government securities
Current assets:
Cash equivalents	1,686
Level 3
Current assets:
Strategic investments	0	10,311
Total assets	0	10,311
Other liabilities, non-current:
Cash settled SARs	1
Cash settled SARs	6	48
Total liabilities	7
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
Level 3 | U.S. government securities
Current assets:
Cash equivalents	$ 0