Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2015

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, 2015 and 2014 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2015		2014		2015		2014
Numerator:
Net income	$	88,040	$	91,155	$	232,986	$	236,841
Denominator:
Shares used for basic net income per share	178,547		178,186		178,591		178,324
Effect of dilutive securities:
Stock options	667		1,146		858		1,257
RSUs and deferred stock units	1,150		1,623		1,193		1,697
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	180,364		180,955		180,642		181,278
Basic net income per share	$	0.49	$	0.51	$	1.30	$	1.33
Diluted net income per share	$	0.49	$	0.50	$	1.29	$	1.31

Schedule of Shares Excluded from Computation of Diluted Earnings Per Share

The number of potential outstanding shares excluded from the computation of diluted net income per share for the three and nine months ended September 30, 2015 and 2014 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2015	2014	2015	2014
Stock options	3	261	10	462
Service-based RSUs	157	797	269	773
Performance-based RSUs	1,148	565	1,148	572
Convertible senior notes	7,704	7,704	7,704	7,704
Warrants related to issuance of convertible senior notes	7,704	7,704	7,704	7,704