Net income (loss) per share (Tables)

6 Months Ended

Jun. 30, 2015

Net income (loss) per share

Schedule of calculation of net income (loss) per share

	Three Months Ended					Six Months Ended
	June 30,					June 30,
(in thousands except per share data)	2015		2014			2015			2014
Basic Net Income (Loss) Per Share
Net income (loss)	$	9,294	$	(36,873	)	$	(9,063	)	$	(70,830	)
Weighted average common shares outstanding	178,676		167,914			175,373			166,636
Basic net income (loss) per share	$	0.05	$	(0.22	)	$	(0.05	)	$	(0.43	)
Diluted Net Income (Loss) Per Share
Diluted net income (loss)	$	9,294	$	(36,873	)	$	(9,063	)	$	(70,830	)
Weighted average common shares outstanding	178,676		167,914			175,373			166,636
Dilutive stock options and RSU’s	7,817		—			—			—
Weighted average shares used to compute diluted net income (loss) per share	186,493		167,914			175,373			166,636
Diluted net income (loss) per share	$	0.05	$	(0.22	)	$	(0.05	)	$	(0.43	)

Schedule of antidilutive securities excluded from the computation of earnings per share

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2015	2014	2015	2014
Stock options and awards	137,012	17,684,266	13,255,051	17,684,266
Common shares issuable upon conversion of the 2015 Notes	4,990,916	10,441,728	4,990,916	10,441,728
Common shares issuable upon conversion of the 2018 Notes	7,245,263	7,245,263	7,245,263	7,245,263
Common shares issuable upon conversion of the 2020 Notes	7,245,263	7,245,263	7,245,263	7,245,263
Total potential common shares excluded from diluted net income (loss) per share computation	19,618,454	42,616,520	32,736,493	42,616,520