Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Dilutive Effect of Stock Options RSUs and PSAs

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,
	2018		2017		2018		2017
Net Income	$	13,617	$	11,937	$	26,034	$	22,114
Weighted-average number of basic shares outstanding during the    period		18,806		18,775		18,738		18,840
Dilutive effect of stock options, RSUs, and performance shares		403		311		470		412
Weighted-average number of diluted shares outstanding during the    period		19,209		19,086		19,208		19,252
Basic earnings per share	$	0.72	$	0.64	$	1.39	$	1.17
Diluted earnings per share	$	0.71	$	0.63	$	1.36	$	1.15