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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2025
Earnings Per Share [Abstract] |
Schedule of Components of Earnings Per Share | The following table details the components of basic and diluted EPS.
| Year ended December 31,
| 2025 |  | 2024 |  | 2023
| (In thousands, except per-share amounts)
Numerator for basic and diluted EPS: |  |  |  |  |
Net loss | $ | (1,906) |  |  | $ | (113,175) |  |  | $ | (38,947) |
Less: Net income attributable to Subsidiary Series A Preferred Units | (14,863) |  |  | (14,806) |  |  | (12,581) |
Net loss attributable to noncontrolling interest | 10,831 |  |  | 5,822 |  |  | — |
Net loss attributable Summit Midstream Corporation | (5,938) |  |  | (122,159) |  |  | (51,528) |
Less: Net income attributable to Series A Preferred Stock | (13,631) |  |  | (13,337) |  |  | (11,566) |
Net loss attributable to common equity holders | $ | (19,569) |  |  | $ | (135,496) |  |  | $ | (63,094) |
Denominator for basic and diluted EPS: |  |  |  |  |
Weighted-average number of shares outstanding – basic | 12,133 |  |  | 10,600 |  |  | 10,334 |
Effect of nonvested restricted stock units | — |  |  | — |  |  | — |
Effect of assumed conversion and elimination of noncontrolling interest net income | — |  |  | — |  |  | — |
Weighted-average number of shares outstanding – diluted | 12,133 |  |  | 10,600 |  |  | 10,334 |
Net Loss per share: |  |  |  |  |
Common Stock – basic | $ | (1.61) |  |  | $ | (12.78) |  |  | $ | (6.11) |
Common Stock – diluted | $ | (1.61) |  |  | $ | (12.78) |  |  | $ | (6.11) |
Class B Common Stock – basic and diluted | $ | — |  |  | $ | — |  |  | $ | — |
Nonvested anti-dilutive restricted shares excluded from the calculation of diluted EPS | 437 |  |  | 546 |  |  | 245 |
Class B Common Stock | 6,527 |  |  | 592 |  |  | — |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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