v3.26.1
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
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 0
Net loss attributable Summit Midstream Corporation $ (5,938) $ (122,159) $ (51,528)
Weighted-average number of shares outstanding – basic (in shares) 12,133 10,600 10,334
Effect of assumed conversion and elimination of noncontrolling interest net income (in shares) 0 0 0
Weighted-average number of shares outstanding – diluted (in shares) 12,133 10,600 10,334
Common stock - basic (in dollars per share) $ (1.61) $ (12.78) $ (6.11)
Common stock - diluted (in dollars per share) (1.61) (12.78) (6.11)
Class B Common Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Common stock - basic (in dollars per share) 0 0 0
Common stock - diluted (in dollars per share) $ 0 $ 0 $ 0
Nonvested anti-dilutive restricted stock shares excluded from the calculation of diluted EPS (in shares) 6,527 592 0
Restricted Stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Nonvested anti-dilutive restricted stock shares excluded from the calculation of diluted EPS (in shares) 437 546 245
Series A Preferred Units | Subsidiary      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Less: Net income attributable to Subsidiary Series A Preferred Units $ (14,863) $ (14,806) $ (12,581)
Series A Preferred Units | Parent Company      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Less: Net income attributable to Subsidiary Series A Preferred Units (13,631) (13,337) (11,566)
Common units      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Net loss attributable to common equity holders $ (19,569) $ (135,496) $ (63,094)
Effect of nonvested restricted stock units (in shares) 0 0 0