Convertible Notes Payable (Tables)

9 Months Ended

Sep. 30, 2018

Schedule of outstanding balances of convertible notes

The outstanding balances of the Convertible Notes as of September 30, 2018 consisted of the following (in thousands):



	2024 Convertible Notes
Liability component:
Principal	$	305,000
Less: debt discount and issuance costs, net	$	(128,820	)
Net carrying amount	$	176,180
Equity component:	$	134,450

Schedule of interest expense recognized related to convertible notes

The following table sets forth total interest expense recognized related to the Convertible Notes during the three and nine months ended September 30, 2018 and 2017 (in thousands):



	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Contractual interest expense	$	2,287	$	1,195	$	6,863	$	1,195
Amortization of debt discount	3,379		1,568		9,804		1,568
Amortization of debt issuance costs	127		—		370		—
Total interest expense	$	5,793	$	2,763	$	17,037	$	2,763

Schedule of future minimum payments on long-term debt

Future minimum payments on the Company's long-term debt as of September 30, 2018 are as follows (in thousands):



Years ended December 31,	Future Minimum Payments
2019	$	9,150
2020	9,150
2021	9,150
2022	9,150
2023	9,150
2024 and Thereafter	314,150
Total minimum payments	$	359,900
Less: interest	(54,900		)
Less: unamortized discount	(128,820		)
Less: current portion	—
Long Term Debt	$	176,180