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Acquisitions - Pro Forma Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2023 | Jul. 31, 2022
Acquisitions |  |  |  |
Revenues | $ 143,393 | $ 135,914 | $ 282,023 | $ 268,505
Net income | $ 28,116 | $ 22,308 | $ 56,710 | $ 45,141
Earnings per share |  |  |  |
Basic (in dollars per share) | $ 0.33 | $ 0.26 | $ 0.67 | $ 0.53
Diluted (in dollars per share) | $ 0.32 | $ 0.26 | $ 0.65 | $ 0.52

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