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ACQUISITIONS - Consideration (Details) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 02, 2019 USD ($) a | Jan. 03, 2019 USD ($) a | Dec. 31, 2019 USD ($) | Jan. 02, 2019 USD ($) | Dec. 31, 2018 USD ($)
ACQUISITIONS |  |  |  |  |
Previously held investment |  |  | $ 307,322 |  |
Equity method investments |  |  | 28,529 |  | $ 161,309
Acquisition gain |  |  | $ 177,043 |  |
AllDale I and II |  |  |  |  |
ACQUISITIONS |  |  |  |  |
Royalty acres, net | a |  | 43,000 |  |  |
Cash |  | $ 176,205 |  |  |
Previously held investment |  | 307,322 |  |  |
Total |  | 483,527 |  |  |
Equity method investments |  |  |  | $ 130,300 |
Acquisition gain |  | $ 177,000 |  |  |
Wing |  |  |  |  |
ACQUISITIONS |  |  |  |  |
Royalty acres, net | a | 9,000 |  |  |  |
Royalty acres, gross | a | 400,000 |  |  |  |
Cash | $ 144,900 |  |  |  |

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