Net Income per Share (Tables)

6 Months Ended

Jun. 30, 2016

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, 2016 and 2015 (in thousands, except per share data):

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2016		2015		2016		2015
Numerator:
Net income	$	73,635	$	67,200	$	148,493	$	144,946
Denominator:
Shares used for basic net income per share	175,499		178,682		175,951		178,614
Effect of dilutive securities:
Stock options	396		912		400		954
RSUs and DSUs	525		1,144		629		1,214
Convertible senior notes	—		—		—		—
Warrants related to issuance of convertible senior notes	—		—		—		—
Shares used for diluted net income per share	176,420		180,738		176,980		180,782
Basic net income per share	$	0.42	$	0.38	$	0.84	$	0.81
Diluted net income per share	$	0.42	$	0.37	$	0.84	$	0.80

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 six months ended June 30, 2016 and 2015 are as follows (in thousands):

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
	2016	2015	2016	2015
Stock options	80	—	92	13
Service-based RSUs	1,904	28	3,283	325
Performance-based RSUs	1,280	1,148	704	1,148
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