Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2013

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,
	2013		2012
Numerator:
Net income	$	71,487	$	43,227
Denominator:
Shares used for basic net income per common share	177,899		178,120
Effect of dilutive securities:
Stock options	1,776		2,423
RSUs and deferred stock units	1,887		1,799
Shares used for diluted net income per common share	181,562		182,342
Basic net income per common share	$	0.40	$	0.24
Diluted net income per common share	$	0.39	$	0.24

Schedule of Shares Excluded from Computation of Diluted Earnings Per Share

The potentially outstanding shares excluded from the computation of diluted earnings per share is as follows (in thousands):

	For the Three Months Ended March 31,
	2013	2012
Options	2,148	2,681
Service-based RSUs	495	1,024
Performance-based RSUs	1,148	2,129
Total shares excluded from computation	3,791	5,834