Property and Equipment, Net - Schedule of Impairment Loss (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Property, Plant, and Equipment [Line Items] | ||||
| Total impairment loss | $ 0 | $ 0 | $ 4,689 | $ 0 |
| Income Statement Location [Axis]: us-gaap:CostOfRevenue | ||||
| Property, Plant, and Equipment [Line Items] | ||||
| Total impairment loss | 0 | 0 | 1,453 | 0 |
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Property, Plant, and Equipment [Line Items] | ||||
| Total impairment loss | 0 | 0 | 1,042 | 0 |
| Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense | ||||
| Property, Plant, and Equipment [Line Items] | ||||
| Total impairment loss | 0 | 0 | 1,108 | 0 |
| Income Statement Location [Axis]: yext:GeneralAndAdministrativeExpenseAdjusted | ||||
| Property, Plant, and Equipment [Line Items] | ||||
| Total impairment loss | $ 0 | $ 0 | $ 1,086 | $ 0 |