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Business Combinations - Summary of Unaudited Pro Forma Historical Results (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Business Combinations [Abstract] |  |
Total revenues | $ 2,712.2 | $ 2,454.2
Net earnings attributable to controlling interests | $ 487.6 | $ 440.0
Basic net earnings per share | $ 2.29 | $ 2.11
Diluted net earnings per share | $ 2.25 | $ 2.06

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