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Equity and Dividends (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 06, 2022 | Apr. 15, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
2022 repurchase plan |  | $ 240.0 |  |  |  |  |  |
Effective period of stock repurchase plan |  | 1 year |  |  |  |  |  |
Shares of common stock repurchased through the open market transactions (in shares) |  |  | 1,272,179 |  |  |  | 2,468,354 |
Average price of shares repurchased (in dollars per share) |  |  | $ 64.44 |  |  |  | $ 61.56 |
Remaining amount of 2022 repurchase plan |  |  | $ 88.4 |  |  |  | $ 88.4 |
Dividends to common stockholders (in dollars per share) |  |  | $ 0.90 | $ 0.90 | $ 1.80 | $ 2.0025 | $ 2.70 | $ 2.9025
Subsequent Event | Declared November 6, 2022 |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Dividends to common stockholders (in dollars per share) | $ 0.9 |  |  |  |  |  |  |

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