Income Per Share

9 Months Ended

Sep. 30, 2016

INCOME PER SHARE

Basic per share amounts were computed using the weighted average number of common shares outstanding. Diluted per share amounts were calculated using the number of basic weighted average shares outstanding increased by dilutive potential common shares related to stock-based awards, as determined by the treasury stock method. The weighted average numbers of shares outstanding used to compute income per share were as follows (in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2015	2016	2015
Shares used to calculate basic income per share	31,118	31,272	31,069	31,386
Dilutive effect of outstanding stock options, performance stock units and restricted stock units	267	255	271	316
Shares used to calculate diluted income per share	31,385	31,527	31,340	31,702

The weighted average numbers of shares outstanding listed in the table below were anti-dilutive and excluded from the computation of diluted income per share because the average market price did not exceed the exercise price. These shares may be dilutive potential common shares in the future (in thousands):



	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2015	2016	2015
Stock options	4	7	11	10