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Share Repurchase Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |
Total cost | $ 8,407 | $ 118,776 | $ 63,555
Share repurchase program |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Number of common shares repurchased and subsequently retired | 0 | 4,736,405 |
Total cost | $ 0 | $ 112,016 |
Average cost per share, including commissions | $ 0 | $ 23.65 |

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