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EQUITY AND NONCASH COMPENSATION - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2025 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) | 600,000
Unrecognized unit-based compensation | $ | $ 7.3
Weighted-average remaining vesting period (in years) | 9 months 18 days
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) | 149,297
Grant date fair value | $ | $ 5.2
Vesting period (in years) | 3 years
Unvested shares (in shares) | 355,150
Performance Shares | SMLP LTIP |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Units granted (in shares) | 90,081
Grant date fair value | $ | $ 4.4
Vesting period (in years) | 3 years
Unvested shares (in shares) | 310,048
Common units | SMLP LTIP |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Grant date fair value | $ | $ 0.7
Common units issued (in shares) | 18,372
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) | 600,000

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