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Summary of Significant Accounting Policies - Capitalized Software, Impairment, and Intangible Assets (Details) - USD ($) | 12 Months Ended
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Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020
Accounting Policies [Abstract] |  |  |
Impairment of capitalized internal-use software | $ 1,143,000 | $ 0 | $ 0
Goodwill impairment | $ 0 | $ 0 | $ 0
Image library |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 3 years |  |
Minimum | Capitalized Internal-Use Software Development Costs |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 1 year |  |
Minimum | Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 5 years |  |
Minimum | Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 5 years |  |
Minimum | Trade names and other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 3 years |  |
Maximum | Capitalized Internal-Use Software Development Costs |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 3 years |  |
Maximum | Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 9 years |  |
Maximum | Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 9 years |  |
Maximum | Trade names and other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Estimated useful life | 7 years |  |

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