Income Per Share

6 Months Ended

Jun. 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 June 30,		Six Months Ended June 30,
	2016	2015	2016	2015
Shares used to calculate basic income per share	31,072	31,485	31,044	31,441
Dilutive effect of outstanding stock options, performance stock units and restricted stock units	263	306	271	360
Shares used to calculate diluted income per share	31,335	31,791	31,315	31,801

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 June 30,		Six Months Ended June 30,
	2016	2015	2016	2015
Stock options	11	8	11	11