Income Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Schedule of Weighted Average Number of Shares Outstanding Used to Compute Income Per Share

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

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

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