SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Aug. 14, 2025	Sep. 30, 2025	Sep. 30, 2024
Business Combination [Line Items]
Aggregate cash consideration		$ 58,266	$ 64,180
Unproved Oil And Gas Mineral Interests Properties
Business Combination [Line Items]
Aggregate cash consideration	$ 40,000
Escrow deposit		$ 3,300

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Black Stone Minerals, L.P. 10-Q