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Stock-based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Summary of the Company's RSU and PRSU awards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | RSU Awards |  | PRSU Awards
​ | ​ | ​ |  | Weighted-Average | ​ | ​ |  | Weighted-Average
​ | ​ | ​ |  | Grant-Date | ​ | ​ |  | Grant-Date
​ |  | Shares |  | Fair Value |  | Shares |  | Fair Value
Non-vested awards at December 31, 2022 |  | 275,588 | ​ | $ | 22.30 |  | 68,800 | ​ | $ | 20.90
Granted |  | 235,850 | ​ |  | 19.84 |  | 79,050 | ​ |  | 19.99
Vested |  | (222,757) | ​ |  | 21.19 |  | (59,870) | ​ |  | 20.03
Forfeited |  | (2,840) | ​ |  | 22.14 |  | — | ​ |  | —
Non-vested awards at September 30, 2023 |  | 285,841 | ​ | $ | 21.14 |  | 87,980 | ​ | $ | 20.67
Vested but unissued at September 30, 2023 |  | 253,468 | ​ | $ | 20.78 |  | 148,505 | ​ | $ | 20.80
Summary of the Phantom Stock Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Phantom Stock Plan |  | Shares |  | Fair Value | ​ | Weighted-Average Fair Value
Outstanding at December 31, 2022 |  | 158,410 | ​ | $ | 19.38 | ​ | ​ | ​
Granted |  | 21,346 | ​ | ​ | ​ | ​ | $ | 17.43
Distributions |  | (1,132) | ​ | ​ | ​ | ​ | $ | 17.27
Outstanding at September 30, 2023 |  | 178,624 | ​ | $ | 13.13 | ​ | ​ | ​
Vested at September 30, 2023 |  | 178,624 | ​ | $ | 13.13 | ​ | ​ | ​

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