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SHAREHOLDERS' EQUITY (Tables) | 3 Months Ended
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Mar. 31, 2023
Equity [Abstract] |
COMMON SHARES ISSUED AND OUTSTANDING | The following table presents changes in common shares issued and outstanding:
|  | Three months ended March 31, |  |  |  |
|  | 2023 |  | 2022 |  |  |  |  |  |
| Shares issued, balance at beginning of period | 176,580 |  |  | 176,580 |  |  |  |  |  |  |
| Shares issued | — |  |  | — |  |  |  |  |  |  |
| Total shares issued at end of period | 176,580 |  |  | 176,580 |  |  |  |  |  |  |
| Treasury shares, balance at beginning of period | (91,912) |  |  | (91,806) |  |  |  |  |  |  |
| Shares repurchased | (262) |  |  | (245) |  |  |  |  |  |  |
| Shares reissued | 777 |  |  | 747 |  |  |  |  |  |  |
| Total treasury shares at end of period | (91,397) |  |  | (91,304) |  |  |  |  |  |  |
| Total shares outstanding | 85,183 |  |  | 85,276 |  |  |  |  |  |  |
SHARE REPURCHASES | The following table presents common shares repurchased from shares held in Treasury:
|  | Three months ended March 31, |  |  |  |
|  | 2023 |  | 2022 |  |  |  |  |  |
| In the open market: |  |  |  |  |  |  |  |  |
| Total shares | — |  |  | — |  |  |  |  |  |  |
| Total cost | $ | — |  |  | $ | — |  |  |  |  |  |  |
| Average price per share(1) | $ | — |  |  | $ | — |  |  |  |  |  |  |
| From employees:(2) |  |  |  |  |  |  |  |  |
| Total shares | 262 |  |  | 245 |  |  |  |  |  |  |
| Total cost | $ | 15,945 |  |  | $ | 12,977 |  |  |  |  |  |  |
| Average price per share(1) | $ | 60.82 |  |  | $ | 52.93 |  |  |  |  |  |  |
| Total shares repurchased: |  |  |  |  |  |  |  |  |
| Total shares | 262 |  |  | 245 |  |  |  |  |  |  |
| Total cost | $ | 15,945 |  |  | $ | 12,977 |  |  |  |  |  |  |
| Average price per share(1) | $ | 60.82 |  |  | $ | 52.93 |  |  |  |  |  |  |
(1) Calculated using whole numbers. (2) Shares are repurchased from employees to facilitate the satisfaction of their personal withholding tax liabilities that arise on the vesting of share-settled restricted stock units.
DIVIDENDS | The following table presents dividends declared and paid related to the Company's common and preferred shares:
|  | Per share data |
|  | Dividends declared |  | Dividends paid in period of declaration |  | Dividends paid in period following declaration |
| Three months ended March 31, 2023 |  |  |  |  |  |
| Common shares | $ | 0.44 |  |  | $ | — |  |  | $ | 0.44 |  |
| Series E preferred shares | $ | 34.38 |  |  | $ | — |  |  | $ | 34.38 |  |
| Three months ended March 31, 2022 |  |  |  |  |  |
| Common shares | $ | 0.43 |  |  | $ | — |  |  | $ | 0.43 |  |
| Series E preferred shares | $ | 34.38 |  |  | $ | — |  |  | $ | 34.38 |  |

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