Equity Investees (Consolidated Financial Statements Related to Equity Investees) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity Method Investments and Joint Ventures [Abstract]
Amortization of differences attributable to Genesis’ carrying value of equity investments	$ (3,566)	$ (3,566)	$ (7,132)	$ (7,132)
Distributions received	17,092	20,678	40,341	44,512
Equity in earnings of equity investees	12,213	14,811	28,654	32,364
Genesis’ share of operating earnings	$ 15,779	$ 18,377	$ 35,786	$ 39,496