Stock-Based Compensation Plans (Schedule Of Future Share-Based Compensation Cost) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remainder of 2013	$ 2.4
2014	7.3
2015	6.2
2016	5.6
2017	4.9
Thereafter	13.8
Total	40.2
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remainder of 2013	0.8
2014	2.5
2015	2.1
2016	1.9
2017	1.7
Thereafter	7.6
Total	16.6
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remainder of 2013	1.6
2014	4.8
2015	4.1
2016	3.7
2017	3.2
Thereafter	6.2
Total	$ 23.6

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Employee Service Share Based Compensation Estimated Allocation Of Recognized Period Costs Remainder Of Fiscal Year

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