Earnings per Share

6 Months Ended

Jun. 30, 2014

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

The following table sets forth the calculations of basic and diluted earnings per share (in thousands, except per share data):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Numerator:
Net income used for calculating basic and diluted earnings per share	$	53,040	$	46,514	$	90,776	$	83,189
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share	89,521		93,574		90,595		93,584
Common stock equivalents associated with stock-based compensation plans (1)	1,223		1,614		1,417		1,842
Shares used in the calculation of diluted earnings per share	90,744		95,188		92,012		95,426
Basic earnings per share	$	0.59	$	0.50	$	1.00	$	0.89
Diluted earnings per share	$	0.58	$	0.49	$	0.99	$	0.87

(1) Certain common stock equivalents were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive. These shares totaled 0.4 million for both the three months ended June 30, 2014 and 2013, and 0.3 million for both the six months ended June 30, 2014 and 2013.