Summary of Significant Accounting Policies (Revenue Recognition) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 720,900	$ 700,900
Revenues	687,961	708,993	$ 784,459
Performance obligations satisfied in previous periods [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reductions in revenue	$ (3,500)	$ (2,600)	$ (7,000)