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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per share

The following is a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per share available to common stockholders.

	For the Three Months Ended March 31,
	2013				2014
Numerator
Net income (controlling interest)	$	62.4			$	77.2
Denominator
Average shares outstanding—basic	52.7				53.7
Effect of dilutive instruments:
Stock options and restricted stock	1.3				1.3
Forward equity	0.2				0.2
Average shares outstanding—diluted	54.2				55.2

Diluted earnings per share calculations excluding the anti-dilutive effect of shares

The diluted earnings per share calculations in the table above exclude the anti-dilutive effect of the following shares:

	For the Three Months Ended March 31,
	2013			2014
Stock options and restricted stock	0.0			0.3
Senior convertible securities	3.6			—
Junior convertible trust preferred securities	4.2			3.7

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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