Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2026	Jan. 31, 2025
Deferred tax assets:
Net operating loss carryforwards	$ 340,811	$ 316,434
Research and development credit carryforwards	27,984	26,398
174 Expense	2,112	22,899
163(j) interest limitation	24,097	20,044
Stock based compensation	4,861	5,077
Lease liability	2,028	3,663
Deferred revenue	1,470	712
Accruals and other reserves	444	618
Other	838	717
Gross deferred tax assets	404,645	396,562
Valuation allowance	(389,261)	(381,262)
Total deferred tax assets, net of valuation allowance	15,384	15,300
Deferred tax liabilities:
Contract acquisition costs	(10,509)	(8,452)
Capitalized software	(5,110)	(4,843)
Right-of-use assets	(1,500)	(2,845)
Basis difference in intangible assets	(178)	(268)
Total deferred tax liabilities	(17,297)	(16,408)
Net deferred tax liabilities	$ (1,913)	$ (1,108)