Earnings Per Share (Notes)

9 Months Ended

Sep. 30, 2017

9. 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,
	2017	2016	2017	2016
Weighted average number of common shares outstanding used to compute basic earnings per share	52,500	53,275	52,660	53,281
Dilutive effect of stock-based awards	673	493	659	506
Number of shares used to compute diluted earnings per share	53,173	53,768	53,319	53,787

The amount of anti-dilutive share equivalents outstanding during the three and nine months ended September 30, 2017 and 2016 was insignificant.