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ACQUISITIONS - 2020 Activity (Details) - Mineral interests in Permian Basin
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
a
Business Acquisition [Line Items]  
Mineral interests acquired, gross acres (in acre) 4,948
Mineral interests acquired, net royalty acres (in acre) 410
Aggregate purchase price | $ $ 63.4