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Fair Value Measurements (Details) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Jan. 31, 2023 USD ($) $ / shares shares | Jan. 31, 2022 USD ($) | Jan. 31, 2021 USD ($)
Fair Value Measurements |  |  |
Equity derivatives, number of common shares held (in shares) | shares | 281,768 |  |
Derivative, common shares weighted average price (in dollars per share) | $ / shares | $ 31.35 |  |
Minimum | Revenue growth rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 10 |  |
Minimum | Discount rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 10 |  |
Maximum | Revenue growth rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 13 |  |
Maximum | Discount rate |  |  |
Fair Value Measurements |  |  |
Estimated fair value consideration percentage | 13 |  |
General and administrative expenses |  |  |
Fair Value Measurements |  |  |
Expense (recovery) | $ | $ (1.3) | $ (2.9) | $ (3.4)

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