Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 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):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2016	2015	2016	2015
Common shares outstanding, end of period	37,230	37,486	37,230	37,486
Effect of using weighted average common shares outstanding	130	66	150	(55)
Shares used in computing earnings per share—basic	37,360	37,552	37,380	37,431
Effect of shares issuable under stock option plans based on the treasury stock method	319	277	331	266
Effect of contingently issuable restricted shares	142	178	143	147
Shares used in computing earnings per share—diluted	37,821	38,007	37,854	37,844