Income Taxes - Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Jan. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 226,971	$ 228,400
Research and development expenses	106,257	72,432
Deferred revenue	36,199	25,643
Accruals and reserves	9,265	6,215
Operating lease liabilities	7,492	9,139
Stock-based compensation	14,300	17,528
Other	7,111	2,622
Gross deferred tax assets	407,595	361,979
Valuation allowance	(340,951)	(291,751)
Total deferred tax assets	66,644	70,228
Deferred tax liabilities:
Acquired intangibles, property and equipment	(28,652)	(37,170)
Deferred contract acquisition costs	(30,423)	(22,868)
Operating lease right-of-use assets	(6,582)	(8,162)
Other	(1,782)	(2,279)
Total deferred tax liabilities	(67,439)	(70,479)
Net deferred tax assets (liabilities)	$ (795)	$ (251)