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v3.22.1

Share Capital (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 16, 2020 | Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020
Stock Issued During Period, Shares, New Issues (in shares) |  |  |  | 6,900,000
Proceeds from Stock Options Exercised |  | $ 2.7 | $ 6.2 | $ 1.5
The 2020 Base Shelf Prospectus [Member] |  |  |  |
Shelf Prospectus Period (Month) | 25 months |  |  |
Shelf Prospectus, Maximum Amount | $ 1,000.0 |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 0 |  |  |

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