Financial Commitments (Reconciliation Of Outstanding Debt Balance To Reported Debt Balance) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Outstanding Debt	$ 972,419
Unamortized Discounts and Issuance Costs	(13,980)
Total debt	958,439	$ 993,654
Term Loan B
Debt Instrument [Line Items]
Outstanding Debt	415,438	419,688
Unamortized Discounts and Issuance Costs	(11,269)	(13,353)
Total debt	404,169	406,335
2017 Senior Notes | 2017 Senior Notes
Debt Instrument [Line Items]
Outstanding Debt	500,000	500,000
Unamortized Discounts and Issuance Costs	(2,711)	(3,756)
Total debt	$ 497,289	$ 496,244