Transactions with Related Parties (Schedule of Transactions with Related Parties) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Revenues	$ 807,618	$ 721,248	$ 2,402,892	$ 2,074,920
Poseidon
Related Party Transaction [Line Items]
Equity method investment, ownership percentage	64.00%		64.00%
CEO
Related Party Transaction [Line Items]
Cost and expenses	$ 165	165	$ 495	495
Equity Method Investee
Related Party Transaction [Line Items]
Revenues	4,812	3,854	13,858	10,952
Cost and expenses	6,797	268	8,834	777
Other receivables	2,200		2,200		$ 2,400
Equity Method Investee | Fees
Related Party Transaction [Line Items]
Revenues	$ 2,500	$ 2,400	$ 7,500	$ 7,300