REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Royalty income	$ 161,085	$ 193,089
Oil income
Disaggregation of Revenue [Line Items]
Royalty income	136,619	155,051
Natural gas income
Disaggregation of Revenue [Line Items]
Royalty income	8,991	15,190
Natural gas liquids income
Disaggregation of Revenue [Line Items]
Royalty income	$ 15,475	$ 22,848

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details