Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Deferred tax assets:
Net operating loss carryforwards	$ 317,489	$ 344,067
Accruals and reserves	12,643	15,823
Stock-based compensation	6,512	11,888
Deferred revenue	29,376	25,942
Research and development	90,110	103,263
Depreciation and amortization	1,459	587
Lease liabilities	8,255	11,563
Other	6,428	5,602
Total deferred tax assets, gross	472,272	518,735
Less: valuation allowance	(406,251)	(470,040)
Total deferred tax assets, net of valuation allowance	66,021	48,695
Deferred tax liabilities:
Intangible assets	(1,431)	(2,409)
Foreign exchange	(34)	(37)
Right-of-use assets	(5,728)	(8,957)
Commissions	(30,871)	(32,747)
Other	(3,791)	0
Total deferred tax liabilities	(41,855)	(44,150)
Net deferred tax assets	24,166	4,545
Net deferred tax assets	27,963	4,678
Net deferred tax liabilities (included in other liabilities, non-current)	$ (3,797)	$ (133)