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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Net Income |  |
Net Income, Basic | $ 36.1 | $ 34.0
Net Income, Diluted | $ 36.1 | $ 34.0
Weighted Average Common Shares |  |
Basic (in shares) | 34.4 | 36.1
Effect of Dilutive Securities (in shares) | 0.2 | 0.2
Diluted (in shares) | 34.6 | 36.3
Per Common Share Amount |  |
Net income, Basic (in dollars per share) | $ 1.05 | $ 0.94
Effect of dilutive securities (in dollars per shares) | (0.01) |
Net income, Diluted (in dollars per share) | $ 1.04 | $ 0.94

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