XML 38 R28.htm IDEA: XBRL DOCUMENT v2.4.0.8

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Summary of Earnings Per Share

Per share amounts are computed as follows:

		Three Months Ended March 31
		2014				2013
Numerator (in millions):
Net income available to common stockholders		$	16.9			$	18.0
Denominator (in thousands):
Weighted average common shares outstanding			24,362				23,404
Dilutive effect of stock options and awards			273				611
Denominator for diluted earnings per share			24,635				24,015
Net income per share, basic:		$	0.69			$	0.77
Net income per share, diluted:		$	0.69			$	0.75

X

- Details

Name:	us-gaap_EarningsPerShareAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

+ Details

Name:	us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration