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CHANGES IN COMMON STOCK (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions |  | 1 Months Ended | 3 Months Ended | 4 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 03, 2023 | May 31, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Apr. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Common stock repurchased |  |  | $ 40.0 | $ 10.0 |  | $ 85.1 | $ 170.0
Stock repurchase program, remaining repurchase authorized amount |  |  | 601.8 |  |  | 601.8 |
Common stock dividends declared |  |  | $ 17.2 | $ 16.3 |  | $ 51.0 | $ 48.7
Dividends (in dollars per share) |  |  |  |  |  | $ 0.44 |
Subsequent Event |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Common stock repurchased | $ 0.8 |  |  |  |  |  |
Common stock |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchased and retired during period (in shares) |  |  | 1,646 | 561 |  | 3,625 | 7,168
Common stock repurchased |  |  |  |  |  |  | $ 0.1
Additional share repurchase program authorized amount |  | $ 500.0 |  |  |  |  |
Dividends (in dollars per share) |  | $ 0.15 |  |  | $ 0.14 |  |
Employee benefit plans, net of shares used to pay tax withholdings (in shares) |  |  | 135 | 133 |  | 1,445 | 1,158

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