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Shareholders' Equity - Changes in Shareholders' Equity - Parenthetical (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | [2] | Dec. 31, 2023
6.50% Exchangeable Senior Notes due 2026 |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stated interest rate | 6.50% | 6.50% | 6.50% |  |  | 6.50%
6.50% Exchangeable Senior Notes due 2026 | Convertible Notes |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Stated interest rate | 6.50% | 6.50% | 6.50% |  |  | 6.50%
Debt instrument retired principal amount | $ 229.7 | $ 229.7 |  |  |  |
Debt instrument converted amount | 410.0 | 410.0 |  |  |  |
Common shares |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Cash consideration | $ 229.7 | $ 229.7 |  |  |  |
Shares issued |  |  | 4,210,000 | [1] | 642,000 |
Common shares | 6.50% Exchangeable Senior Notes due 2026 |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Shares issued in connection with exchange for a portion of outstanding debt | 12,430,285 | 12,430,285 |  |  |  |
Shares issued | 4,209,847 | 4,209,847 |  |  |  |
Shares issued | 4,209,847 | 4,209,847 |  |  |  |
[1] | During the second and third quarters of 2024, the Company retired $229.7 million in aggregate principal amount of its outstanding 6.50% Exchangeable Senior Notes in private exchange transactions for an exchange value of approximately $410 million. The consideration consisted of cash of $229.7 million and 12,430,285 shares of GEO common stock. Of the total amount of shares issued, the Company issued 4,209,847 shares that were previously held in treasury. Refer to Note 10 - Debt for further information.
[2] | The Company sold treasury shares to partially fund its obligation under its Amended and Restated Executive Retirement Agreement with its Executive Chairman. Refer to Note 13 - Benefit Plans for further information.

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