Net Income Per Share

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Net Income Per Share

Net Income Per Share

The calculation of net income per share for the three and nine months ended September 30, 2014 and 2013 is reflected in the following table (in thousands, except per share amounts):

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2014		2013		2014		2013
Basic net income per share:
Net income	$	85,184	$	66,358	$	221,875	$	185,310
Income allocated to participating securities—basic	—		—		—		3
Net income available to common stockholders—basic	$	85,184	$	66,358	$	221,875	$	185,307
Basic weighted average shares	134,054		135,727		134,690		136,469
Basic net income per share	$	0.64	$	0.49	$	1.65	$	1.36
Diluted net income per share:
Net income	$	85,184	$	66,358	$	221,875	$	185,310
Income allocated to participating securities—diluted	—		—		—		3
Net income available to common stockholders—diluted	$	85,184	$	66,358	$	221,875	$	185,307
Basic weighted average shares	134,054		135,727		134,690		136,469
Dilutive effect of potential common shares	1,312		1,514		1,050		1,290
Diluted weighted average shares	135,366		137,241		135,740		137,759
Diluted net income per share	$	0.63	$	0.48	$	1.63	$	1.35

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 and nine months ended September 30, 2014 and 2013, excludes the effect of the following (in thousands):

	Three Months Ended   September 30,		Nine Months Ended   September 30,
	2014	2013	2014	2013
Total number of anti-dilutive potential common shares	—	386	1	188