Conveyance of Overriding Interest (Details) ft in Thousands, $ in Millions	6 Months Ended
	Jun. 15, 2020 USD ($) ft
Conveyance of Overriding Royalty Interest
Initial PDP Override (as a percent)	1.25%
Development Override (as a percent)	3.75%
Horizontal wells turned to sales, threshold one (in lateral feet) | ft	2,200
Horizontal wells turned to sales, threshold two (in lateral feet) | ft	3,820
Incremental override (percentage)	2.00%
Percentage of distributions received	85.00%
Sixth Street
Conveyance of Overriding Royalty Interest
Cash contribution | $	$ 300
Additional contribution | $	$ 102
Internal rate of return threshold	13.00%
Cash on cash return threshold	150.00%