Share-Based Compensation And Stock Repurchase Plans (Schedule Of Restricted Stock Units Issued And Vested) (Details) - Restricted Stock Units (RSUs) [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	2,233,372
Number of options, Vesting | shares	969,822
Number of options, Unvested | shares	1,065,511
Number of options, Forfeited | shares	198,039
Value of options, Granted | $	$ 13,103,765
Value of options, Vesting | $	7,869,691
Value of options, Forfeited | $	995,025
Value of options, Unvested | $	$ 4,239,049
Award Date 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	68,153
Number of options, Vesting | shares	67,372
Number of options, Forfeited | shares	781
Value of options, Granted | $	$ 815,160
Value of options, Vesting | $	805,759
Value of options, Forfeited | $	$ 9,400
Award Date 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	70,538
Number of options, Vesting | shares	70,006
Number of options, Forfeited | shares	532
Value of options, Granted | $	$ 1,124,348
Value of options, Vesting | $	1,115,852
Value of options, Forfeited | $	$ 8,496
Award Date 3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	97,600
Number of options, Vesting | shares	94,426
Number of options, Forfeited | shares	3,174
Value of options, Granted | $	$ 1,581,512
Value of options, Vesting | $	1,529,648
Value of options, Forfeited | $	$ 51,864
Award Date 4 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	59,258
Number of options, Vesting | shares	56,154
Number of options, Forfeited | shares	3,104
Value of options, Granted | $	$ 944,070
Value of options, Vesting | $	894,065
Value of options, Forfeited | $	$ 50,005
Award Date 5 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	401,966
Number of options, Vesting | shares	354,950
Number of options, Unvested | shares	18,758
Number of options, Forfeited | shares	28,258
Value of options, Granted | $	$ 2,281,899
Value of options, Vesting | $	1,996,354
Value of options, Forfeited | $	170,840
Value of options, Unvested | $	$ 114,705
Award Date 6 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	361,593
Number of options, Vesting | shares	177,510
Number of options, Unvested | shares	148,426
Number of options, Forfeited | shares	35,657
Value of options, Granted | $	$ 2,185,222
Value of options, Vesting | $	1,002,259
Value of options, Forfeited | $	229,250
Value of options, Unvested | $	$ 953,712
Award Date 7 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	502,582
Number of options, Vesting | shares	149,404
Number of options, Unvested | shares	282,502
Number of options, Forfeited | shares	70,676
Value of options, Granted | $	$ 1,998,505
Value of options, Vesting | $	525,753
Value of options, Forfeited | $	294,720
Value of options, Unvested | $	$ 1,178,033
Award Date 8 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	671,682
Number of options, Unvested | shares	615,825
Number of options, Forfeited | shares	55,857
Value of options, Granted | $	$ 2,173,049
Value of options, Forfeited | $	180,451
Value of options, Unvested | $	$ 1,992,598