Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Calculation of Net Income Per Share

The calculation of net income per share for the three months ended March 31, 2019 and 2018, is reflected in the following table (in thousands, except per share amounts):

	Three Months Ended   March 31,
	2019		2018
Net income	$	109,798	$	96,167
Basic:
Weighted average shares	117,068		121,934
Diluted:
Weighted average shares	117,068		121,934
Dilutive effect of potential common shares	898		953
Diluted weighted average shares	117,966		122,887
Net income per share:
Basic	$	.94	$	.79
Diluted	$	.93	$	.78