Net Income per Share (Tables)

12 Months Ended

Dec. 31, 2015

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 years ended December 31, 2015, 2014 and 2013 (in thousands, except per share data):



	2015		2014		2013
Numerator:
Net income	$	321,406	$	333,948	$	293,487
Denominator:
Shares used for basic net income per share	178,391		178,279		178,196
Effect of dilutive securities:
Stock options	794		1,221		1,622
RSUs and DSUs	1,230		1,686		1,965
Convertible senior notes	—		—		—
Warrants related to issuance of convertible senior notes	—		—		—
Shares used for diluted net income per share	180,415		181,186		181,783
Basic net income per share	$	1.80	$	1.87	$	1.65
Diluted net income per share	$	1.78	$	1.84	$	1.61

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The number of potentially outstanding shares excluded from the computation of diluted net income per share for the years ended December 31, 2015, 2014 and 2013 (in thousands):



	2015	2014	2013
Stock options	22	402	1,649
Service-based RSUs	660	786	188
Performance-based RSUs	1,007	570	985
Convertible senior notes	7,704	7,704	—
Warrants related to issuance of convertible senior notes	7,704	7,704	—
Total shares excluded from computation	17,097	17,166	2,822