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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, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021
Acquisitions |  |  |  |
Revenues | $ 124,237 | $ 113,126 | $ 245,151 | $ 222,582
Net income | $ 22,998 | $ 24,398 | $ 46,521 | $ 43,808
Earnings Per Share |  |  |  |
Basic (in dollars per share) | $ 0.27 | $ 0.29 | $ 0.55 | $ 0.52
Diluted (in dollars per share) | $ 0.27 | $ 0.28 | $ 0.54 | $ 0.51

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