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Equity - Share Repurchase Plan, Preferred Stock (Details) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) item $ / shares shares | Dec. 31, 2021 USD ($) item $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Jul. 26, 2022 USD ($)
Share Repurchase Plan |  |  |  |
Value of shares authorized by the Board of Directors to be repurchased under share repurchase plan | $ |  |  |  | $ 1,000.0
Remaining value of shares authorized by the Board of Directors to be repurchased under share repurchase plan | $ | $ 680.7 |  |  |
Repurchase of common shares (in shares) | 3,525,000 | 2,107,000 | 3,674,000 |
Average costs per share | $ / shares | $ 178.81 | $ 153.55 | $ 91.80 |
Value of shares repurchased | $ | $ 630.3 | $ 323.5 | $ 337.3 |
Preferred Stock |  |  |  |
Preferred stock, authorized shares | 5,000,000 | 5,000,000 |  |
Preferred stock, par value (in dollars per share) | $ / shares | $ 0.001 | $ 0.001 |  |
Preferred stock, issued shares | 0 | 0 |  |
Preferred stock, outstanding shares | 0 | 0 |  |
Minimum number of series in which preferred shares may be issued | item | 1 | 1 |  |
Issued and outstanding common shares, beginning balance (in shares) | 61,806,000 | 63,600,000 | 66,854,000 |
Issued to settle RSUs and PSUs, net of withheld shares (in shares) | 506,000 | 313,000 | 414,000 |
Issued for stock options exercised (in shares) |  |  | 6,000 |
Repurchased (in shares) | (3,525,000) | (2,107,000) | (3,674,000) |
Issued and outstanding common shares, ending balance (in shares) | 58,787,000 | 61,806,000 | 63,600,000 |

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