Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2018

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 months ended March 31, 2018 and 2017 (in thousands, except per share data):

	For the Three Months Ended March 31,
	2018		2017
Numerator:
Net income	$	53,714	$	74,583
Denominator:
Shares used for basic net income per share	170,116		173,158
Effect of dilutive securities:
Stock options	142		360
RSUs and DSUs	1,746		1,653
Convertible senior notes	—		—
Warrants related to issuance of convertible senior notes	—		—
Shares used for diluted net income per share	172,004		175,171
Basic net income per share	$	0.32	$	0.43
Diluted net income per share	$	0.31	$	0.43

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 months ended March 31, 2018 and 2017 are as follows (in thousands):

	For the Three Months Ended March 31,
	2018	2017
Stock options	—	3
Service-based RSUs	2,815	2,681
Performance-based RSUs	1,529	1,253
Convertible senior notes	7,704	7,704
Warrants related to issuance of convertible senior notes	7,704	7,704
Total shares excluded from computation	19,752	19,345