Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

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,
	2015			2014			2015			2014
Common shares outstanding, end of period		37,550			37,748			37,550			37,748
Effect of using weighted average common shares outstanding		(93	)		(42	)		(180	)		(104	)

Shares used in computing earnings per share—basic		37,457			37,706			37,370			37,644
Effect of shares issuable under stock option plans based on the treasury stock method		289			144			260			165
Effect of restricted shares		171			30			131			105

Shares used in computing earnings per share—diluted		37,917			37,880			37,761			37,914