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



	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands, except share and per share amounts)	2016		2015		2016		2015
Net income from continuing operations:
Net income from continuing operations - basic	$	98,112	$	45,193	$	164,361	$	136,920
Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	913		3,707		4,303		7,380
Net income from continuing operations - diluted	$	99,025	$	48,900	$	168,664	$	144,300

Net income:
Net income from continuing operations - basic	$	98,112	$	45,193	$	164,361	$	136,920
Income (loss) from discontinued operations, net of tax	—		4,855		—		5,385
Net income - basic	98,112		50,048		164,361		142,305
Adjustment for dilutive Convertible Senior Notes due 2019, net of tax (1)	913		3,707		4,303		7,380
Net income - diluted	$	99,025	$	53,755	$	168,664	$	149,685

Average common shares outstanding - basic	214,274		193,112		208,991		192,245
Dilutive effect of Convertible Senior Notes due 2017 (2)	12		12,438		—		11,789
Dilutive effect of Convertible Senior Notes due 2019	8,928		37,736		21,256		37,736
Dilutive effect of stock-based compensation arrangements (2)	2,989		3,364		2,698		3,211
Adjusted average common shares outstanding - diluted	226,203		246,650		232,945		244,981

Net income per share:

Basic:
Net income from continuing operations	$	0.46	$	0.23	$	0.79	$	0.71
Income (loss) from discontinued operations	—		0.03		—		0.03
Net income	$	0.46	$	0.26	$	0.79	$	0.74

Diluted:
Net income from continuing operations	$	0.44	$	0.20	$	0.73	$	0.59
Income (loss) from discontinued operations	—		0.02		—		0.02
Net income	$	0.44	$	0.22	$	0.73	$	0.61

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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 June 30,		Six Months Ended June 30,
(in thousands)	2016	2015	2016	2015
Shares of common stock equivalents	1,042	264	1,042	530
Shares of Convertible Senior Notes due 2017	—	—	1,902	—