The calculation of the basic and diluted net income per share was as follows:



	Three Months Ended March 31,
(In thousands, except share and per share amounts)	2016		2015
Net income from continuing operations:
Net income from continuing operations - basic	$	66,249	$	91,727
Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,390		3,673
Net income from continuing operations - diluted	$	69,639	$	95,400

Net income:
Net income from continuing operations - basic	$	66,249	$	91,727
Income from discontinued operations, net of tax	—		530
Net income - basic	66,249		92,257
Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	3,390		3,673
Net income - diluted	$	69,639	$	95,930

Average common shares outstanding - basic	203,706		191,224
Dilutive effect of Convertible Senior Notes due 2017 (2)	—		10,886
Dilutive effect of Convertible Senior Notes due 2019	33,583		37,736
Dilutive effect of stock-based compensation arrangements (2)	2,418		3,202
Adjusted average common shares outstanding - diluted	239,707		243,048

Net income per share:

Basic:
Net income from continuing operations	$	0.33	$	0.48
Income from discontinued operations	—		—
Net income	$	0.33	$	0.48

Diluted:
Net income from continuing operations	$	0.29	$	0.39
Income from discontinued operations	—		—
Net income	$	0.29	$	0.39

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(1)	As applicable, includes coupon interest, amortization of discount and fees, and other changes in income or loss that would result from the assumed conversion.


(2)	The following number of shares of our common stock equivalents issued under our stock-based compensation arrangements and convertible debt were not included in the calculation of net income per share because they were anti-dilutive:



	Three Months Ended March 31,
(in thousands)	2016	2015
Shares of common stock equivalents	709	540
Shares of Convertible Senior Notes due 2017	1,902	—