Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Calculation of Net Income Per Share

The calculation of net income per share for the three and nine months ended September 30, 2019 and 2018, is reflected in the following table (in thousands, except per share amounts):

	Three Months Ended    September 30,				Nine Months Ended    September 30,
	2019		2018		2019		2018
Net income	$	117,181	$	115,242	$	341,591	$	320,724
Basic:
Weighted average shares	115,181		120,115		116,203		121,112
Diluted:
Weighted average shares	115,181		120,115		116,203		121,112
Dilutive effect of potential common shares	687		1,328		731		1,081
Diluted weighted average shares	115,868		121,443		116,934		122,193
Net income per share:
Basic	$	1.02	$	.96	$	2.94	$	2.65
Diluted	$	1.01	$	.95	$	2.92	$	2.62