Earnings Per Share

9 Months Ended

Sep. 30, 2016

11. Earnings Per Share

The following is a reconciliation of the shares used to compute basic and diluted earnings per share (in thousands):



	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2016	2015	2016	2015
Weighted average number of common shares outstanding used to compute basic earnings per share	53,275	52,654	53,281	52,053
Dilutive effect of stock-based awards	493	650	506	706
Number of shares used to compute diluted earnings per share	53,768	53,304	53,787	52,759

The amount of anti-dilutive share equivalents outstanding during the three and nine months ended September 30, 2016 and 2015 was insignificant.