EQUITY COMPENSATION (Details) $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($) director shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment award, target payout (as a percent)	1
SMC Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units remaining available (in shares)	300,000
Phantom Share Units And Associated Distribution Equivalent Rights \| SMLP LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	177,854
Grant date fair value \| $	$ 5.4
Vesting period (in years)	3 years
Performance Units \| SMLP LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	120,283
Grant date fair value \| $	$ 4.6
Vesting period (in years)	3 years
Common Stock \| SMLP LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value \| $	$ 0.7
Common units issued (in shares)	22,398
Number of directors \| director	6
Restricted Stock \| SMC Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested shares (in shares)	700,000

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