Earnings Per Share (Reconciliation Of Net Earnings To Net Earnings Attributable To Common Shares Used In Basic And Diluted Calculation) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Earnings from continuing operations	$ 102.0	$ 127.3	$ 158.6
Earnings allocated to participating non-vested share awards	(0.5)	(0.7)	(1.1)
Earnings from continuing operations attributable to common shares	$ 101.5	$ 126.6	$ 157.5

Net Income (Loss) from Continuing Operations Available to Common Stockholders

No definition available.

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- Details

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

+ Details

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- Definition

Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 60B

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7655603&loc=SL5780133-109256

+ Details

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