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Equity-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Schedule of equity based compensation by type of award |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
(in thousands) | ​ | 2021 | ​ | 2022 | ​ | 2023 | ​
Restricted stock units (1) | ​ | $ | 11,461 | ​ | ​ | 16,039 | ​ | ​ | 24,409 | ​
Performance share units (1) | ​ | ​ | 1,158 | ​ | ​ | 2,770 | ​ | ​ | 6,266 | ​
Equity awards issued to directors | ​ | ​ | 910 | ​ | ​ | 845 | ​ | ​ | 931 | ​
Total expense | ​ | $ | 13,529 | ​ | ​ | 19,654 | ​ | ​ | 31,606 | ​
(1) | Amounts include equity-based compensation expense allocated to the Company by Antero Resources.
Summary of RSU awards activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted Average | ​
​ | ​ | Number | ​ | Grant Date | ​
​ |  | of Units |  | Fair Value | ​
Total AM LTIP RSUs awarded and unvested—December 31, 2022 | ​ | 4,877,258 | ​ | $ | 9.79 | ​
Granted | ​ | 3,103,722 | ​ | ​ | 10.59 | ​
Vested | ​ | (1,927,368) | ​ | ​ | 9.54 | ​
Forfeited | ​ | (176,442) | ​ | ​ | 10.38 | ​
Total AM LTIP RSUs awarded and unvested—December 31, 2023 | ​ | 5,877,170 | ​ | $ | 10.28 | ​
ROIC PSUs |
Summary of PSU awards activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted Average | ​
​ | ​ | Number | ​ | Grant Date | ​
​ |  | of Units |  | Fair Value | ​
Total AM LTIP PSUs awarded and unvested—December 31, 2022 | ​ | 439,935 | ​ | $ | 11.28 | ​
Granted | ​ | 512,166 | ​ | ​ | 10.58 | ​
Total AM LTIP PSUs awarded and unvested—December 31, 2023 | ​ | 952,101 | ​ | $ | 10.90 | ​

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the change in restricted stock units (RSUs). + References No definition available. + Details
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