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Acquisitions - Proforma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2022 | Jan. 31, 2021
Business Combinations [Abstract] |  |  |  |
Total revenue | $ 3,082,346 | $ 2,251,406 | $ 9,731,049 | $ 7,197,255
Net income | $ 66,898 | $ 41,590 | $ 300,140 | $ 282,473
Net income per common share |  |  |  |
Basic (in dollars per share) | $ 1.80 | $ 1.12 | $ 8.08 | $ 7.63
Diluted (in dollars per share) | $ 1.79 | $ 1.12 | $ 8.04 | $ 7.58

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