Share-Based Compensation (Compensation Expense Of The Nonvested Shares Outstanding) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Third quarter 2012	$ 2.0
Fourth quarter 2012	1.9
2013	5.4
2014	2.8
2015	0.4
Total	$ 12.5

Compensation expense of nonvested shares outstanding.

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Compensation expense of nonvested shares outstanding fourth quarter.

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Compensation expense of nonvested shares outstanding third quarter.

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Compensation expense of nonvested shares outstanding year one

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Compensation expense of nonvested shares outstanding year three

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Compensation expense of nonvested shares outstanding year two

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