Equity Investees (Consolidated Financial Statements Related to Equity Investees) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]
Genesis’ share of operating earnings	$ 61,892,000	$ 72,554,000	$ 80,461,000
Amortization of differences attributable to Genesis’ carrying value of equity investments	(14,263,000)	(14,263,000)	(14,263,000)
Net equity in earnings	47,629,000	58,291,000	66,198,000
Distributions earned(1)	$ 69,538,000	$ 81,752,000	$ 90,833,000