Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Schedule of earnings per share reconciliation

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

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Numerator:
Net income used for calculating basic and diluted earnings per common share	$	30,366	$	33,846	$	109,872	$	124,622
Denominator:
Weighted average number of common shares used in the calculation of basic earnings per share	82,989		88,513		84,244		89,901
Common stock equivalents associated with stock-based compensation plans (1)	1,124		1,195		1,191		1,372
Shares used in the calculation of diluted earnings per share	84,113		89,708		85,435		91,273
Basic earnings per share	$	0.37	$	0.38	$	1.30	$	1.39
Diluted earnings per share	$	0.36	$	0.38	$	1.29	$	1.37

(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.