Derivatives (Narrative) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Initial margin	$ 1,000,000.0	$ 1,100,000
Net broker receivable	1,600,000	900,000
Increase (Decrease) in Margin Deposits Outstanding	$ 600,000	$ 200,000