Earnings Per Share (Notes)

6 Months Ended

Jun. 30, 2019

11. Earnings Per Share

Basic earnings per common share (EPS) excludes dilution and is computed by dividing Net income attributable to common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other obligations to issue common stock were exercised or converted into common stock or resulted in the issuance of common shares that then shared in our earnings.

A reconciliation of the numerators and denominators of the basic and diluted EPS computations is presented below:



	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income:
Net income — basic	$	72,329	$	103,239	$	151,652	$	185,227
After tax interest on convertible debt	—		15		—		30
Net income — diluted	$	72,329	$	103,254	$	151,652	$	185,257
Weighted average shares (denominator):
Weighted average shares — basic	182,369		182,637		182,048		183,877
Stock options	3,278		4,265		3,418		4,391
Restricted stock units	43		165		51		158
Convertible debt	—		121		—		121
Weighted average shares — diluted	185,690		187,188		185,517		188,547
Net income per share:
Basic	$	0.40	$	0.57	$	0.83	$	1.01
Diluted	$	0.39	$	0.55	$	0.82	$	0.98

The computation of diluted EPS excludes outstanding stock options and restricted share units in certain periods in which the inclusion of such equity awards would be anti-dilutive in the periods presented. Total equity awards not included in the computation of dilutive EPS are as follows (in shares):



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2019	2018	2019	2018
	(In thousands)
Antidilutive options	105	1,155	—	868