Common Stock and Stock-Based Awards Plans (Summary Of Stock-Based Awards) (Details) shares in Thousands	6 Months Ended
	Jun. 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	591
Vested, shares or units | shares	(388)
Forfeited, shares or units | shares	(55)
Non-vested shares outstanding, shares or units, ending balance | shares	1,205
Non-vested outstanding, weighted-average grant date fair value, beginning balance | $ / shares	$ 28.02
Granted, weighted-average grant date fair value | $ / shares	25.79
Vested, weighted-average grant date fair value | $ / shares	28.21
Forfeited, weighted-average grant date fair value | $ / shares	27.49
Non-vested outstanding, weighted-average grant date fair value, ending balance | $ / shares	$ 26.89
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	(174)
Non-vested shares outstanding, shares or units, ending balance | shares	545
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	27.29
Non-vested outstanding, weighted-average grant date fair value, ending balance | $ / shares	$ 27.62

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