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Income Taxes
 6 Months Ended
Jul. 31, 2023
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
Accounting for income taxes for interim periods generally requires the provision for income taxes to be determined by applying an estimate of the annual effective tax rate for the full fiscal year to income or loss before income taxes, adjusted for discrete items, if any, for the reporting period. The Company updates its estimate of the annual effective tax rate each quarter and records a cumulative adjustment in such period.
The Company recorded an immaterial amount of income tax expense for the three months ended July 31, 2023 and $0.4 million for the three months ended July 31, 2022, and $0.8 million and $0.6 million for the six months ended July 31, 2023 and 2022, respectively. Income tax expense consists primarily of income taxes in foreign jurisdictions in which the Company conducts business. Due to the Company’s history of losses in the United States, a full valuation allowance on the Company’s domestic deferred tax assets, including net operating loss carryforwards, research and development tax credits, capitalized research and development, and other book versus tax differences was maintained. The Company has deferred tax attributes for stock-based compensation and fixed assets in the United Kingdom, and has not recorded a valuation allowance on the deferred tax attributes as of July 31, 2023. The Company will continue to evaluate for any future developments.