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Capital Stock - Changes in Outstanding Common Stock (Details) - shares shares in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Changes in Common Stock [Roll Forward] |  |  |
Outstanding, beginning of year (in shares) | 111,669 | 111,669 | 111,452
Shares issued for time vested restricted stock (net of forfeitures) (in shares) | 0 | 0 | 129
Shares issued for employee stock purchase plan (in shares) | 0 | 0 | 88
Shares cancelled (in shares) | (21,535) | 0 | 0
Outstanding, end of year (in shares) | 90,134 | 111,669 | 111,669

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