Long-Term Debt - Other Secured Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jul. 19, 2023	Dec. 31, 2022
Senior Credit Facility
Outstanding principal balance	$ 3,111,836		$ 3,113,726
Senior Secured Revolving Credit Facility
Senior Credit Facility
Unused stand-by letter of credit	1,200,000
Maximum borrowing capacity of credit facility		$ 1,200,000
Borrowings outstanding	0
Subsidiary One [Member] | Revolving Credit Facility
Senior Credit Facility
Maximum borrowing capacity of credit facility	$ 125,000
Line of Credit Facility, Interest Rate at Period End	7.20%
Borrowings outstanding	$ 59,800		55,100
Subsidiary Two [Member] | Revolving Credit Facility
Senior Credit Facility
Maximum borrowing capacity of credit facility	$ 30,000
Line of Credit Facility, Interest Rate at Period End	6.70%
Borrowings outstanding	$ 0		0
Subsidiary Three [Member] | Secured Debt [Member]
Senior Credit Facility
Long-term Debt, Weighted Average Interest Rate, at Point in Time	2.80%
Outstanding principal balance	$ 2,000		$ 8,600