Common Stock and Stock-Based Awards (Schedule Of Unrecognized Compensation Cost And Remaining Weighted-Average Amortization Period) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Time-Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 31,953
Remaining weighted-average amortization period	2 years 7 months 6 days
Performance-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 7,395
Remaining weighted-average amortization period	2 years 6 months