Revenues (Schedule of Contract with Customer, Assets and Liabilities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Contract Liabilities
Beginning balance	$ 431,177	$ 360,416
Consideration earned during the period	(102,087)	(71,778)
Consideration received during the period	175,343	127,030
Ending balance	$ 504,433	$ 415,668