Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2017

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,
	2017	2016
Common shares outstanding, end of period	37,226	37,392
Effect of using weighted average common shares outstanding	(1)	(48)
Shares used in computing earnings per share—basic	37,225	37,344
Effect of shares issuable under stock option plans based on the treasury stock method	335	321
Effect of restricted and contingently issuable shares	164	165
Shares used in computing earnings per share—diluted	37,724	37,830