Debt Financing (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Outstanding Convertible Note Balances

The Company’s outstanding Convertible Note balances as of December 31, 2015 consisted of the following (in thousands):

Liability component:
Principal	$	325,000
Less: deferred financing costs		(4,212)
Less: debt discount, net		(91,006)
Net carrying amount	$	229,782
Equity component	$	116,900

Schedule of Total Interest Expense Recognized Related to Convertible Notes

The following table sets forth total interest expense recognized related to the Convertible Notes during the years ended December 31, 2015 and 2014 (in thousands):

	Years Ending December 31,
	2015		2014
Contractual interest expense	$	6,500	$	2,438
Amortization of debt issuance costs		886		312
Amortization of debt discount		19,142		6,751
Total	$	26,528	$	9,501

Convertible Notes

Summary of Future Minimum Payments under Term Loan Agreements

Future minimum payments under the Company’s Convertible Notes as of December 31, 2015, are as follows (in thousands):

Years Ending December 31,
2016	$	6,500
2017		6,500
2018		6,500
2019		331,500
		351,000
Less amounts representing interest		(26,000)
Less: deferred financing costs		(4,212)
Less debt discount, net		(91,006)
Net carrying amount of convertible notes	$	229,782