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INCOME TAXES - Tax election (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Taxes |  |  |  |
Deferred tax liability | $ 26,154 | $ 35,126 |  |
Earnings per limited partner unit - basic (in dollars per unit) | $ 4.81 | $ 4.39 | $ 1.36 |
Earnings per limited partner unit - diluted (in dollars per unit) | $ 4.81 | $ 4.39 | $ 1.36 |
AllDale I and II |  |  |  |
Taxes |  |  |  |
Acquisition gain |  |  |  | $ 177,000
Change in tax accounting |  |  |  |
Taxes |  |  |  |
Deferred tax liability |  | $ 37,300 |  |
Earnings per limited partner unit - basic (in dollars per unit) |  | $ 0.29 |  |
Earnings per limited partner unit - diluted (in dollars per unit) |  | $ 0.29 |  |

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