Long-term Debt - Credit Facility (Narrative) (Details)	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Nov. 13, 2024 USD ($)
Line of Credit Facility [Line Items]
Outstanding borrowings	$ 400,000,000		$ 400,000,000
Revolving credit facility | Line of Credit
Line of Credit Facility [Line Items]
Amortization period	5 years
Interest expense	$ 800,000	$ 1,000,000.0
Outstanding borrowings	$ 0		0
Revolving credit facility | Line of Credit | Magnolia Operating
Line of Credit Facility [Line Items]
Maximum commitments, aggregate principal amount				$ 1,500,000,000
Initial borrowing base				800,000,000
Borrowing capacity				$ 450,000,000
Leverage ratio (less than)				3.50
Current ratio (greater than)				1.00
Transaction fees related to the modification			$ 5,200,000
Letter of Credit Sublimit | Line of Credit | Magnolia Operating
Line of Credit Facility [Line Items]
Maximum commitments, aggregate principal amount				$ 50,000,000