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Common Shares (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions | May 23, 2023 | May 13, 2022 | Aug. 04, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | ---
Number of common and preferred stock authorized to issue |  |  |  | 185,000 |
Common shares, authorized |  |  |  | 175,000 | 175,000
Preferred shares, authorized |  |  |  | 10,000 |
Common Stock, Shares, Outstanding |  |  |  | 106,800 |
Preferred Stock, Shares Outstanding |  |  |  | 0 |
2022 ATM program |  |  |  |  |
Maximum aggregate offering price of common shares |  | $ 500.0 |  |  |
2023 ATM program |  |  |  |  |
Maximum aggregate offering price of common shares | $ 500.0 |  |  |  |
2023 ATM program | Subsequent Event [Member] |  |  |  |  |
Maximum aggregate offering price of remaining common shares available for sale |  |  | $ 500.0 |  |
October 2022 Repurchase Plan |  |  |  |  |
Treasury stock allowed for repurchase |  |  |  | $ 500.0 |
October 2022 Repurchase Plan | Subsequent Event [Member] |  |  |  |  |
Share Repurchase Program, Remaining Authorized Repurchase Amount |  |  | $ 500.0 |  |

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