Earnings per share (“EPS”) is computed by dividing reported net income by the weighted-average number of shares outstanding. Diluted EPS considers the potential dilution that could occur if common stock equivalents were exercised or converted into stock. The difference between the basic and diluted weighted-average equivalent shares with respect to the Company’s EPS calculation was due entirely to the assumed exercise of stock options and the vesting and settlement of RSUs and PSAs. PSAs are included in the computation of diluted shares only to the extent that the underlying performance conditions (i) are satisfied as of the end of the reporting period or (ii) would be considered satisfied if the end of the reporting period were also the end of the applicable performance period and the result would be dilutive under the treasury stock method.

As of June 30, 2019, the PSAs granted during the year ended December 31, 2017 met the related performance conditions for the initial performance period and were included in the calculation of diluted EPS. However, the PSAs granted during the year ended December 31, 2018 and during the six months ended June 30, 2019 have not yet completed their initial two-year performance period and therefore were excluded in the calculation of diluted EPS. There were no weighted-average shares excluded from the calculation of EPS because they were anti-dilutive for the three months ended June 30, 2019 and 2018, respectively, and 1,743 and 12,415 shares were excluded for the six months ended June 30, 2019 and 2018, respectively. The anti-dilutive shares were associated with RSUs.

The dilutive effect of stock options, RSUs, and PSAs for each period reported is summarized below:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Net Income	$	14,611	$	13,617	$	29,929	$	26,034

Weighted-average number of basic shares outstanding during the period		18,805		18,806		18,815		18,738
Dilutive effect of stock options, RSUs, and performance shares		328		403		398		470
Weighted-average number of diluted shares outstanding during the period		19,133		19,209		19,213		19,208

Basic earnings per share	$	0.78	$	0.72	$	1.59	$	1.39
Diluted earnings per share	$	0.76	$	0.71	$	1.56	$	1.36