Earnings Per Share

12 Months Ended

Dec. 31, 2017

EARNINGS PER SHARE

Basic earnings and diluted earnings per share data were computed as follows:



	Years Ended December 31,
	2017		2016		2015
Numerator for basic and diluted earnings per share:
Net income	$	163,945	$	109,857	$	64,869
Denominator:
Weighted-average basic common shares outstanding	37,273		36,448		34,137
Assumed conversion of dilutive securities:
Stock options	1,973		2,513		2,415
Denominator for diluted earnings per share - Adjusted weighted-average shares	39,246		38,961		36,552
Earnings per common share:
Basic	$	4.40	$	3.01	$	1.90
Diluted	$	4.18	$	2.82	$	1.77

Stock options representing the right to purchase common stock of 1,343,000 shares in 2017, 786,000 shares in 2016, and 417,000 shares in 2015 were not included in the computation of diluted earnings per share because their inclusion would have had an anti-dilutive effect.