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VARIABLE INTEREST ENTITIES - All Dale III (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Feb. 28, 2017
Equity Investments |  |  |  |  |  |  |  |  |
Investments in affiliate | $ 27,705 |  | $ 27,705 |  |  | $ 28,529 |  |  |
All Dale Minerals III |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  |  |
Distribution after hurdles (as a percent) |  |  | 25.00% |  |  |  |  |  |
Specified internal rate of return (as a percent) |  |  | 10.00% |  |  |  |  |  |
Percentage of available cash distributed |  |  | 125.00% |  |  |  |  |  |
All Dale Minerals III |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  |  |
Investments in affiliate | 27,705 | $ 28,672 | $ 27,705 | $ 28,672 | $ 28,114 | $ 28,529 | $ 28,770 | $ 28,974 |
Other Commitment |  |  |  |  |  |  |  |  | $ 30,000
Distributions received | $ 546 | $ 648 | $ 1,139 | $ 1,176 |  |  |  |  |
All Dale Minerals III | All Dale Minerals III |  |  |  |  |  |  |  |  |
Equity Investments |  |  |  |  |  |  |  |  |
Ownership percentage by limited partners |  |  | 13.90% |  |  |  |  |  |

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