Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2013

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 June 30,					Six Months Ended June 30,
	2013			2012		2013			2012
Common shares outstanding, end of period(a)		37,257			37,163		37,257			37,163
Effect of using weighted average common shares outstanding		(67	)		3		(129	)		(52	)
Shares used in computing earnings per share—basic		37,190			37,166		37,128			37,111
Effect of shares issuable under stock option plans based on the treasury stock method		121			81		107			92
Effect of contingently issuable restricted shares		54			—		114			29
Shares used in computing earnings per share—diluted		37,365			37,247		37,349			37,232

(a)

Excludes 0.1 million and 0.2 million shares of unvested contingently issuable restricted stock outstanding as of June 30, 2013 and 2012, respectively.