Net Income per Common Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Summary of Calculation of Basic And Diluted EPS

The table below presents the calculation of basic and diluted EPS (in thousands, except per share amounts):  

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Numerator:
Net income	$	66,604	$	56,622	$	102,312	$	79,842
Denominator:
Weighted average shares outstanding, basic		115,757		114,636		115,592		114,365
Dilutive effect of options and RSUs		1,162		2,057		1,134		2,330
Weighted average shares outstanding, diluted		116,919		116,693		116,726		116,695
Net income per share:
Basic	$	0.58	$	0.49	$	0.89	$	0.70
Diluted	$	0.57	$	0.49	$	0.88	$	0.68
Antidilutive and contingent options and RSUs excluded from diluted EPS		325		588		659		345