Earnings per Share

6 Months Ended

Jun. 30, 2016

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,
	2016		2015		2016		2015
Numerator:
Net income used for calculating basic and diluted earnings per common share	$	47,911	$	51,155	$	88,078	$	79,506
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share	82,559		83,203		82,505		84,871
Common stock equivalents associated with stock-based compensation plans (1)	917		1,068		993		1,193
Shares used in the calculation of diluted earnings per share	83,476		84,271		83,498		86,064
Basic earnings per share	$	0.58	$	0.61	$	1.07	$	0.94
Diluted earnings per share	$	0.57	$	0.61	$	1.05	$	0.92

(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 common share equivalents totaled less than 0.3 million in each of the periods presented.