INTANGIBLE ASSETS - Intangible Assets and Liabilities Subject to Amortization (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Accumulated amortization | $ (231,857) | $ (219,197) |
| Indefinite-lived intangibles | 8,436 | 8,436 |
| Total intangibles, gross | 385,421 | 373,476 |
| Intangible Assets, Net (Excluding Goodwill), Total | 153,564 | 154,279 |
| Favorable gas gathering contracts | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amount | 21,063 | 21,063 |
| Accumulated amortization | (17,623) | (16,685) |
| Net | 3,440 | 4,378 |
| Contract intangibles | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amount | 146,900 | 146,900 |
| Accumulated amortization | (141,439) | (134,885) |
| Net | 5,461 | 12,015 |
| Rights-of-way | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amount | 209,022 | 197,077 |
| Accumulated amortization | (72,795) | (67,627) |
| Net | $ 136,227 | $ 129,450 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|