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v3.20.2

Stock-based Compensation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
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 at December 31, 2019 |  | 428,295 | ​ | $ | 24.42 |  | 34,186 | ​ | $ | 22.38
Granted |  | 172,728 | ​ |  | 19.66 |  | 72,143 | ​ |  | 20.38
Vested |  | (241,246) | ​ |  | 22.38 |  | (35,149) | ​ |  | 20.54
Forfeited |  | (5,545) | ​ |  | 24.62 |  | — | ​ |  | —
Non-vested at September 30, 2020 |  | 354,232 | ​ | $ | 23.48 |  | 71,180 | ​ | $ | 21.26
Vested but unissued at September 30, 2020 |  | 217,642 | ​ | $ | 23.26 |  | 62,515 | ​ | $ | 21.35
Phantom Share Units (PSUs) [Member] |
Notes Tables |
Summary of the Phantom Stock Plan | ​
​ | ​ | ​ | ​ | ​ | ​
Phantom Stock Plan |  | Shares |  | Fair Value
Outstanding at December 31, 2019 |  | 109,226 | ​ | $ | 21.61
Granted |  | 10,392 | ​ |  | 14.58
Distributions |  | (890) | ​ |  | 11.73
Outstanding at September 30, 2020 |  | 118,728 | ​ | $ | 10.52
Vested at September 30, 2020 |  | 118,677 | ​ | $ | 10.52

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