Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share Reconciliation [Abstract]

Schedule of Components Used in Diluted and Basic Income Per Common Share

The following table sets forth the components used in the computation of basic and diluted net income per common share (in thousands, except per share data):

	For the Three Months Ended March 31,
	2012		2011
Numerator:
Net income	$	43,227	$	50,617
Denominator:
Shares used for basic net income per common share	178,120		186,849
Effect of dilutive securities:
Stock options	2,423		3,353
RSUs and deferred stock units	1,799		1,181
Shares used for diluted net income per common share	182,342		191,383
Basic net income per common share	$	0.24	$	0.27
Diluted net income per common share	$	0.24	$	0.26