Significant Accounting Policies - Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income taxes
Federal, state and local tax provision	$ 1,100	$ 2,500	$ 2,700	$ 5,200
SUMMIT Operator tax (benefit) expense	$ (1,779)	$ 3,735	$ (1,219)	$ 6,881