Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share

Reconciliation Between Basic and Diluted Earnings Per Share

A reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share data):

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Net income for basic and diluted earnings per share	$	365,701	$	367,779	$	466,674	$	411,090
Weighted-average common shares outstanding	219,744		217,940		219,450		217,797
Dilutive effect of stock options, performance share awards and restricted stock awards	1,260		1,356		1,294		1,466
Diluted weighted-average shares outstanding	221,004		219,296		220,744		219,263
Basic earnings per share	$	1.66	$	1.69	$	2.13	$	1.89
Diluted earnings per share	$	1.65	$	1.68	$	2.11	$	1.87