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Related Party Transactions (Details) - Affiliated Entity	1 Months Ended			12 Months Ended
	Feb. 28, 2022 USD ($)	May 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) tranche	Apr. 01, 2021 shares	Dec. 31, 2020 USD ($)
Management Agreement
Related Party Transaction [Line Items]
Agreement initial term (years)				3 years
Agreement additional initial term (years)				3 years
Asset operating expenses				$ 900,000
Management Agreement, Annual Compensation to Manager
Related Party Transaction [Line Items]
Amount of related party transaction				13,500,000
Management Agreement, Ownership of Subsidiary \| OpCo
Related Party Transaction [Line Items]
Amount of related party transaction				$ 53,300,000
Management Agreement, Compensation Increase
Related Party Transaction [Line Items]
Related party transaction rate (as a percent)				1.50%
Management Agreement, Incentive Compensation
Related Party Transaction [Line Items]
Incentive target rate (as a percent)				10.00%
Number of tranches \| tranche				5
Incentive compensation settled period (years)				5 years
Incentive compensation settled rate (as a percent)				2.00%
Management Agreement, Incentive Compensation \| Minimum
Related Party Transaction [Line Items]
Initial target amount (as a percent)				0.00%
Management Agreement, Incentive Compensation \| Maximum
Related Party Transaction [Line Items]
Initial target amount (as a percent)				240.00%
Oil and gas investments
Related Party Transaction [Line Items]
Amount due from related party				$ 3,300,000
Amount due to related party				7,000,000
Other Transactions \| KKR Capital Markets LLC
Related Party Transaction [Line Items]
Amount of related party transaction				1,600,000
Other Transactions \| KKR Capital Markets LLC \| Subsequent Event
Related Party Transaction [Line Items]
Amount of related party transaction	$ 400,000
Other Transactions \| KKR Capstone Americas LLC
Related Party Transaction [Line Items]
Amount of related party transaction				100,000
FDL - Management Agreement \| FDL
Related Party Transaction [Line Items]
Ownership interest exchanged (as a percent)					100.00%
Gain (loss) on exchange transaction			$ 0
Due from (to) related party				$ 16,900,000		$ 7,500,000
FDL - Management Agreement \| FDL \| Class A
Related Party Transaction [Line Items]
Asset exchange, units issued (in shares) \| shares					9,508
Ownership interest (as a percent)				0.15%	0.77%
Oil And Natural Gas Property Operating And Services Agreement, Additional Wind Down Costs \| FDL
Related Party Transaction [Line Items]
Amount of related party transaction		$ 6,500,000
Oil And Natural Gas Property Operating And Services Agreement, Termination Costs \| FDL
Related Party Transaction [Line Items]
Expenses from transactions with related party				$ 3,300,000
Master Management Services Agreement \| RPM
Related Party Transaction [Line Items]
Amount due to related party				$ 1,700,000		$ 1,700,000