Earnings Per Share Level 1 (Notes)

12 Months Ended

Dec. 31, 2019

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 stock that shared in our earnings.

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



	Years Ended December 31,
	2019		2018		2017
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income — basic	$	369,596	$	447,208	$	546,663
After tax interest on convertible debt	—		—		52
Net income — diluted	$	369,596	$	447,208	$	546,715
Weighted average shares:
Weighted average shares — basic	182,246		182,447		187,630
Stock options	3,223		4,339		4,396
Restricted share units	54		186		99
Convertible debt	—		—		121
Weighted average shares — diluted	185,523		186,972		192,246
Amounts attributable to common stockholders:
Net income per share:
Basic	$	2.03	$	2.45	$	2.91
Diluted	$	1.99	$	2.39	$	2.84

The computation of diluted earnings per share excludes outstanding stock options in certain periods in which the inclusion of such options would be antidilutive to the periods presented. Total antidilutive options not currently included in the computation of dilutive EPS