Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2014

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 share for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	91,155	$	79,756	$	236,841	$	213,138
Denominator:
Shares used for basic net income per share	178,186		178,235		178,324		178,008
Effect of dilutive securities:
Stock options	1,146		1,580		1,257		1,693
RSUs and deferred stock units	1,623		2,107		1,697		1,922
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	180,955		181,922		181,278		181,623
Basic net income per share	$	0.51	$	0.45	$	1.33	$	1.20
Diluted net income per share	$	0.50	$	0.44	$	1.31	$	1.17

Schedule of Shares Excluded from Computation of Diluted Earnings Per Share

The number of potentially outstanding shares excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2014 and 2013 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2014	2013	2014	2013
Stock options	261	1,308	462	1,782
Service-based RSUs	797	37	773	234
Performance-based RSUs	565	1,140	572	1,145
Convertible senior notes	—	—	—	—
Warrants related to issuance of convertible senior notes	—	—	—	—