Common Stock and Stock-Based Awards Plans (Summary Of Stock-Based Awards) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2022 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested shares outstanding, shares or units, beginning balance | shares	1,057
Granted, shares or units | shares	598
Vested, shares or units | shares	(407)
Forfeited, shares or units | shares	(68)
Non-vested shares outstanding, shares or units, ending balance | shares	1,180
Non-vested outstanding, weighted-average grant date fair value, beginning balance | $ / shares	$ 28.02
Granted, weighted-average grant date fair value | $ / shares	25.80
Vested, weighted-average grant date fair value | $ / shares	28.09
Forfeited, weighted-average grant date fair value | $ / shares	27.32
Non-vested outstanding, weighted-average grant date fair value, ending balance | $ / shares	$ 26.91
Performance-Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested shares outstanding, shares or units, beginning balance | shares	542
Granted, shares or units | shares	177	[1]
Forfeited, shares or units | shares	(142)
Non-vested shares outstanding, shares or units, ending balance | shares	577
Non-vested outstanding, weighted-average grant date fair value, beginning balance | $ / shares	$ 28.06
Granted, weighted-average grant date fair value | $ / shares	25.97	[1]
Forfeited, weighted-average grant date fair value | $ / shares	27.21
Non-vested outstanding, weighted-average grant date fair value, ending balance | $ / shares	$ 27.63

[1] Represents target number of units that can vest based on the achievement of the performance goals.