Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

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):

	Year Ended December 31,
	2016	2015	2014
Common shares outstanding, end of period	37,209	37,427	37,270
Effect of using weighted average common shares outstanding	126	15	277
Shares used in computing earnings per share—basic	37,335	37,442	37,547
Effect of shares issuable under stock option plans based on the treasury stock method	330	266	147
Effect of restricted and contingently issuable shares	146	160	103
Shares used in computing earnings per share—diluted	37,811	37,868	37,797