Common Stock and Stock-Based Awards (Schedule Of Unrecognized Compensation Cost And Remaining Weighted-Average Amortization Period) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Time-Based Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 29,721
Remaining weighted-average amortization period	2 years 3 months 18 days
Performance-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 6,210	[1]
Remaining weighted-average amortization period	2 years 2 months 12 days	[1]

[1] Based on the probable achievement of the performance goals identified in each award.