Net Income Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Net Income Per Share

Note I—Net Income Per Share

The calculation of net income per share for the three months ended March 31, 2014 and 2013 is reflected in the following table (in thousands, except per share amounts):

	Three Months Ended March 31,
	2014		2013
Basic net income per share:
Net income	$	61,551	$	55,863
Income allocated to participating securities—basic		—		2
Net income available to common stockholders—basic	$	61,551	$	55,861
Basic weighted average shares		135,333		137,311
Basic net income per share	$	.45	$	.41
Diluted net income per share:
Net income	$	61,551	$	55,863
Income allocated to participating securities—diluted		—		2
Net income available to common stockholders—diluted	$	61,551	$	55,861
Basic weighted average shares		135,333		137,311
Dilutive effect of potential common shares		828		1,083
Diluted weighted average shares		136,161		138,394
Diluted net income per share	$	.45	$	.40

Potential common shares include the dilutive effect of stock options, unvested performance-based restricted stock, restricted stock which contains forfeitable rights to dividends, and stock units. The weighted average diluted common shares outstanding for the three months ended March 31, 2014 and 2013, excludes the effect of the following (in thousands):

	Three Months Ended March 31,
	2014	2013
Total number of anti-dilutive potential common shares	4		—