Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consisted of the following at September 30, 2016 and December 31, 2015:

In thousands	2016			2015
Convertible notes, net	$	171,188		$	164,438
Royalty financing, net	96,812			46,921
Facility lease obligation	284,919			231,733
	552,919			443,092
Less current portion	(30,014		)	(13,872		)
Long term portion	$	522,905		$	429,220

Schedule of Outstanding Convertible Note Balances

The outstanding convertible note balances as of September 30, 2016 and December 31, 2015 consisted of the following:

In thousands	2016			2015
Liability component:
Principal	$	200,000		$	200,000
Less: debt discount and unamortized debt issuance costs	(28,812		)	(35,562		)
Net carrying amount	$	171,188		$	164,438
Equity component	$	40,896		$	40,896

Total Interest Expense Recognized Related to Convertible Notes

The following table sets forth total interest expense recognized related to the convertible notes for the three and nine-month periods ended September 30, 2016 and September 30, 2015:

	Three Months Ended September 30,				Nine Months Ended September 30,
In thousands	2016		2015		2016		2015
Contractual interest expense	$	1,812	$	1,813	$	5,438	$	5,438
Amortization of debt discount	2,264		2,058		6,634		6,032
Amortization of debt issuance cost	41		36		116		105
Total interest expense	$	4,117	$	3,907	$	12,188	$	11,575