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Long-Term Incentive Plans (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity-based Awards |
Summary of amount of recognized compensation expense | The following table summarizes the amount of recognized compensation expense associated with the EIP Plans, which are reflected in the accompanying Unaudited Condensed Consolidated Statements of Operations for the periods presented (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ | ​ | 2024 | ​ | 2023 | ​ | 2024 | ​ | 2023
Share-based compensation costs | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
TSUs | ​ | $ | 1,322 | ​ | $ | 1,027 | ​ | $ | 3,685 | ​ | $ | 2,965
PSUs | ​ |  | 494 | ​ |  | 300 | ​ |  | 1,428 | ​ |  | 643
​ | ​ | $ | 1,816 | ​ | $ | 1,327 | ​ | $ | 5,113 | ​ | $ | 3,608
​
TSUs |
Equity-based Awards |
Summary of information regarding restricted stock unit awards | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted-
​ | ​ | ​ | ​ | Average Grant-
​ | ​ | Number of | ​ | Date Fair Value
​ | ​ | Units | ​ | per Unit (1)
TSUs outstanding at December 31, 2023 |  | 1,331,456 | ​ | $ | 5.77
Granted (2) |  | 851,456 | ​ | $ | 6.37
Forfeited |  | (5,922) | ​ | $ | 5.04
Vested |  | (796,854) | ​ | $ | 5.29
TSUs outstanding at September 30, 2024 |  | 1,380,136 | ​ | $ | 6.42
| (1) | Determined by dividing the aggregate grant-date fair value of awards by the number of awards issued.
| (2) | The aggregate grant-date fair value of TSUs issued for the nine months ended September 30, 2024 was $5.4 million based on a grant-date market price ranging from $6.26 per share to $6.72 per share.
PSUs |
Equity-based Awards |
Summary of information regarding restricted stock unit awards | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted-
​ | ​ | ​ | ​ | Average Grant-
​ | ​ | Number of | ​ | Date Fair Value
​ | ​ | Units | ​ | per Unit (1)
PSUs outstanding at December 31, 2023 |  | 402,701 | ​ | $ | 9.31
Granted (2) |  | 312,843 | ​ | $ | 7.55
Forfeited |  | — | ​ | $ | —
Vested |  | (107,044) | ​ | $ | 2.63
PSUs outstanding at September 30, 2024 |  | 608,500 | ​ | $ | 9.58
| (1) | Determined by dividing the aggregate grant-date fair value of awards by the number of awards issued.
| (2) | The aggregate grant-date fair value of PSUs issued for the nine months ended September 30, 2024 was $2.4 million based on a calculated fair value price ranging from $2.63 to $8.33 per share.
2024 PSUs |
Equity-based Awards |
Schedule of ranges for the assumptions used in the Monte Carlo model | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Date of Grant: February 2024 | ​ | ​ | Modification Date: May 2024 | ​
Expected volatility | ​ | 75.8 | % | ​ | 63.2 | %
Dividend yield | ​ | 0.00 | % | ​ | 0.00 | %
Risk-free interest rate | ​ | 4.19 | % | ​ | 4.72 | %

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