Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Deferred tax assets:
Net operating loss carryforwards	$ 109,034	$ 97,463
Tax credit carryforwards	25,007	22,577
Stock-based compensation	4,484	5,905
Allowance for doubtful accounts	598	524
Operating lease liability	19,134	23,392
Accrued expenses	3,736	6,420
Unearned revenue	81	65
Property and equipment	1,373	199
Capitalized research & experimental expenditures	32,678	51,062
Other	2,325	1,451
Total deferred tax assets	198,450	209,058
Less: valuation allowance	(168,940)	(171,650)	$ (169,500)
Deferred tax assets, net of valuation allowance	29,510	37,408
Deferred tax liabilities:
Costs to obtain revenue contracts	(5,820)	(5,916)
Operating lease right-of-use assets	(12,001)	(16,638)
Intangible assets	(11,413)	(14,427)
Other	(438)	(533)
Total deferred tax liabilities	(29,672)	(37,514)
Net deferred tax liabilities	$ (162)	$ (106)