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ORGANIZATION AND PRESENTATION (Details) $ in Millions					12 Months Ended
	Oct. 31, 2021 USD ($) a	Oct. 13, 2021 USD ($) a	Aug. 02, 2019 a	Jan. 03, 2019 a	Dec. 31, 2021 a
Ownership interests
Royalty acres, net					57,000
Boulders
Ownership interests
Royalty acres, net	1,480	1,480
Oil & gas royalty acquisition | $	$ 31.0	$ 31.0
AllDale I and II
Ownership interests
Royalty acres, net				43,000
Wing
Ownership interests
Royalty acres, net			9,000

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Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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