Acquisitions and Disposal of Assets (Details) $ in Thousands			3 Months Ended		6 Months Ended
	Apr. 22, 2021 USD ($)	Feb. 05, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) MMBoe	Jun. 30, 2021 USD ($) MMBoe	Jun. 30, 2020 USD ($) MMBoe
Assets and Liabilities Held for Sale [Line Items]
Proceeds from sale of assets					$ 37,900	$ 1,506
Total revenues			$ 34,196	$ 16,655	67,819	56,984
Lease operating expenses			9,232	8,698	17,186	24,340
Production, ad valorem, and other taxes			$ 2,534	$ 1,854	$ 4,710	$ 5,053
Production volume (MMBoe) | MMBoe				2,200,000	3,400,000	4,700,000
Royalty Interest of SandRidge Mississippian Trust I
Assets and Liabilities Held for Sale [Line Items]
Gross purchase price	$ 4,900
Net purchase price	$ 3,600
Royalty Interest of SandRidge Mississippian Trust I | SandRidge Energy, Inc
Assets and Liabilities Held for Sale [Line Items]
Ownership interest in trust	26.90%
Disposal Group, Held-for-sale, Not Discontinued Operations | North Park Basin, Colorado
Assets and Liabilities Held for Sale [Line Items]
Purchase price		$ 47,000
Proceeds from sale of assets		39,700
Reduction of full cost pool assets		22,000
Reduction in non-full cost pool assets		4,600
Gain on sale		19,700
Gain from release of revenues in suspense		500
Gain from relief of asset retirement obligations		6,100
Reduction in oil and gas properties related to NPB		$ 26,600
Total revenues				$ 4,600	$ 3,200	$ 17,400
Lease operating expenses				2,200	900	5,800
Production, ad valorem, and other taxes				$ 300	$ 200	$ 1,100
Production volume (MMBoe) | MMBoe				200,000	100,000	600,000
Disposal Group, Held-for-sale, Not Discontinued Operations | North Park Basin, Colorado | Revenue Benchmark | Revenue from Rights Concentration Risk
Assets and Liabilities Held for Sale [Line Items]
Concentration risk, percent of total				27.80%	4.70%	30.50%
Disposal Group, Held-for-sale, Not Discontinued Operations | North Park Basin, Colorado | Consolidated Lease Operating Expense | Revenue from Rights Concentration Risk
Assets and Liabilities Held for Sale [Line Items]
Concentration risk, percent of total				25.60%	5.40%	23.70%
Disposal Group, Held-for-sale, Not Discontinued Operations | North Park Basin, Colorado | Consolidated Production, Ad Valorem and Other Taxes | Revenue from Rights Concentration Risk
Assets and Liabilities Held for Sale [Line Items]
Concentration risk, percent of total				16.70%	5.30%	21.40%
Disposal Group, Held-for-sale, Not Discontinued Operations | North Park Basin, Colorado | Consolidated Production | Revenue from Rights Concentration Risk
Assets and Liabilities Held for Sale [Line Items]
Concentration risk, percent of total				10.30%	2.00%	11.70%