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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2015

Stockholders' Equity

Reconciliation of number of shares outstanding with the number of shares used in computing basic and diluted earnings per share

        The following table reconciles the number of shares outstanding with the number of shares used in computing basic and diluted earnings per share for each of the periods presented (in thousands):

		Three Months Ended March 31,
		2015			2014
Common shares outstanding, end of period(a)			37,307			37,597
Effect of using weighted average common shares outstanding			(26	)		(15	)
​	​	​	​	​	​	​	​
Shares used in computing earnings per share—basic			37,281			37,582
Effect of shares issuable under stock option plans based on the treasury stock method			233			186
Effect of contingently issuable restricted shares			91			122
​	​	​	​	​	​	​	​
Shares used in computing earnings per share—diluted			37,605			37,890
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

(a) Excludes 0.1 million shares of unvested contingently issuable restricted stock outstanding as of March 31, 2014.

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- Definition

Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

+ 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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