Earnings Per Share

3 Months Ended

Mar. 31, 2021

A reconciliation of the numerators and the denominators of the basic and diluted per share computations are as follows:


	Three Months Ended
	2021					2020
	Earnings		Shares	Per-Share		Earnings		Shares	Per-Share
(In thousands, except per share data)	(Numerator)		(Denominator)	Amount		(Numerator)		(Denominator)	Amount

Basic earnings per share:
Income available to common shareholders	$	172,252	304,731	$	0.57	$	147,159	309,657	$	0.48
Effect of dilutive securities:
Stock options, non-vested shares and share units	—		3,300			—		2,583
Diluted earnings per share:
Income available to common shareholders including assumed conversions	$	172,252	308,031	$	0.56	$	147,159	312,240	$	0.47

For the three months ended March 31, 2021 and March 31, 2020, options to purchase 1.1 million and 4.1 million shares of common stock at per share prices ranging from $52.32 to $76.49 and $56.76 to $76.49, respectively, were outstanding but were not included in the computation of diluted earnings per share because they were anti-dilutive.