Net Income per Share (Tables)

6 Months Ended

Jun. 30, 2019

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 six months ended June 30, 2019 and 2018 (in thousands, except per share data):

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2019		2018		2019		2018
Numerator:
Net income	$	113,915	$	43,061	$	221,045	$	96,775
Denominator:
Shares used for basic net income per share	163,407		170,250		163,322		170,183
Effect of dilutive securities:
Stock options	92		268		71		205
RSUs and DSUs	1,520		1,789		1,510		1,768
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	165,019		172,307		164,903		172,156
Basic net income per share	$	0.70	$	0.25	$	1.35	$	0.57
Diluted net income per share	$	0.69	$	0.25	$	1.34	$	0.56

Schedule of Shares Excluded from Computation of Diluted Earnings Per Share

The number of potentially outstanding common shares excluded from the computation of diluted net income per share for the three and six months ended June 30, 2019 and 2018 are as follows (in thousands):

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
	2019	2018	2019	2018
Service-based RSUs	174	204	1,370	1,509
Performance-based RSUs	1,484	1,515	1,484	1,522
Convertible senior notes	12,093	19,797	12,093	19,797
Warrants related to issuance of convertible senior notes	12,093	19,797	12,093	19,797
Total shares excluded from computation	25,844	41,313	27,040	42,625