Net Income per Share (Tables)

9 Months Ended

Sep. 30, 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 and nine months ended September 30, 2018 and 2017 (in thousands, except per share data):

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2018		2017		2018		2017
Numerator:
Net income	$	107,583	$	63,911	$	204,358	$	195,246
Denominator:
Shares used for basic net income per share	165,924		170,976		168,763		172,269
Effect of dilutive securities:
Stock options	80		150		158		279
RSUs and DSUs	1,896		379		1,811		823
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	167,900		171,505		170,732		173,371
Basic net income per share	$	0.65	$	0.37	$	1.21	$	1.13
Diluted net income per share	$	0.64	$	0.37	$	1.20	$	1.13

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, 2018 and 2017 are as follows (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2018	2017	2018	2017
Stock options	—	25	—	13
Service-based RSUs	185	5,407	1,068	4,074
Performance-based RSUs	1,515	1,116	1,520	1,165
Convertible senior notes	19,797	7,704	19,797	7,704
Warrants related to issuance of convertible senior notes	19,797	7,704	19,797	7,704
Total shares excluded from computation	41,294	21,956	42,182	20,660