Equity Investees (Consolidated Financial Statements Related to Equity Investees) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]
Amortization of differences attributable to Genesis’ carrying value of equity investments	$ (3,566)	$ (3,566)
Distributions received	23,249	23,834
Equity in earnings of equity investees	16,441	17,553
Genesis’ share of operating earnings	$ 20,007	$ 21,119