Equity Investees (Consolidated Financial Statements Related to Equity Investees) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract]
Genesis’ share of operating earnings	$ 80,461	$ 68,469	$ 73,389
Amortization of differences attributable to Genesis’ carrying value of equity investments	(14,263)	(14,263)	(15,491)
Net equity in earnings	66,198	54,206	57,898
Distributions earned(1)	$ 90,833	$ 75,406	$ 84,106