Stock-Based Compensation and Stock Repurchases (Schedule Of Restricted Stock Units Issued And Vested) (Details) - Restricted Stock Units (RSUs) [Member] - shares	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	2,233,372	1,561,690
Number of options, Vesting	1,703,749	1,378,947
Number of options, Unvested	412,851	74,435
Number of options, Forfeited	116,772	108,308
Award Date 11 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	413,536
Number of options, Vesting	208,289
Number of options, Unvested	201,689
Number of options, Forfeited	3,558
Award Date 12 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	237,719
Number of options, Vesting	106,295
Number of options, Unvested	128,066
Number of options, Forfeited	3,358
Award Date 13 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	20,427
Number of options, Vesting	10,218
Number of options, Unvested	8,661
Number of options, Forfeited	1,548
Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	339,438	339,438
Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	1,893,934	1,222,252
Management [Member] | Award Date 11 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	413,536
Management [Member] | Award Date 12 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	237,719
Management [Member] | Award Date 13 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted	20,427