Income taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Accruals and reserves	$ 4,340	$ 3,852
Deferred revenue	64,332	64,179
Net operating loss	39,420	21,983
Research and development tax credits	37,378	34,772
Stock-based compensation expense	2,518	4,005
Indirect tax reserves	742	377
Property and equipment, net	1,969	2,088
Capitalized research and development costs	22,832	48,726
Operating lease liabilities	1,985	2,152
Other deferred tax assets	4,082	3,052
Gross deferred tax assets	179,598	185,186
Valuation allowance	(160,923)	(165,488)
Total deferred tax assets	18,675	19,698
Deferred tax liabilities:
Deferred contract costs	(9,095)	(9,329)
Operating lease right-of-use-assets	(1,610)	(2,064)
Other deferred tax liabilities	(7,663)	(8,067)
Total deferred tax liabilities	(18,368)	(19,460)
Net deferred tax assets	$ 307	$ 238