Convertible Notes and Term Loan (Tables)

6 Months Ended

Jun. 30, 2020

Debt Instrument [Line Items]

Components of Term Loan

The following table summarizes information about the components of the Term Loan (in thousands):

	June 30,		December 31,
	2020		2019
Principal amount of the Term Loan	$	75,000	$	75,000
Unamortized debt discount and debt issuance costs		(941)		(1,337)
Term Loan	$	74,059	$	73,663

2026 Convertible Notes

Debt Instrument [Line Items]

Components of Convertible Notes

The following table summarizes information about the components of the 2026 Convertible Notes (in thousands):

	June 30,
	2020
Principal amount of the 2026 Convertible Notes	$	230,000
Unamortized debt discount and debt issuance costs		(7,591)
Total 2026 Convertible Notes	$	222,409

Components of Interest Expense

The following table presents the components of interest expense related to 2026 Convertible Notes (in thousands):

	Three and Six Months Ended
	June 30,
	2020
Stated coupon interest	$	709
Accretion of debt discount and debt issuance costs		253
Total interest expense	$	962

Schedule of Future Payments on Debt

Future payments on the 2026 Convertible Notes as of June 30, 2020 are as follows (in thousands):

Year ending December 31,
Remainder of 2020	$	1,715
2021		3,450
2022		3,450
2023		3,450
2024		3,450
2025 and beyond		235,175
Total minimum payments		250,690
Less amount representing interest		(20,690)
2026 Convertible Notes, principal amount		230,000
Less debt discount and debt issuance costs on 2026 Convertible Notes		(7,591)
Net carrying amount of 2026 Convertible Notes	$	222,409

2022 Convertible Notes

Debt Instrument [Line Items]

Components of Convertible Notes

The following table summarizes information about the components of the 2022 Convertible Notes (in thousands):

	June 30,		December 31,
	2020		2019
Principal amount of the 2022 Convertible Notes	$	81,750	$	81,750
Unamortized debt discount and debt issuance costs		(2,552)		(3,208)
2022 Convertible Notes	$	79,198	$	78,542
Principal amount of the 2022 Convertible Notes - related parties	$	27,250	$	27,250
Unamortized debt discount and debt issuance costs - related parties		(851)		(1,069)
2022 Convertible Notes - related parties	$	26,399	$	26,181
Total 2022 Convertible Notes	$	105,597	$	104,723

Components of Interest Expense

The following table presents the components of interest expense (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Stated coupon interest	$	1,538	$	1,538	$	3,076	$	3,075
Accretion of debt discount and debt issuance costs		332		302		656		597
Interest expense	$	1,870	$	1,840	$	3,732	$	3,672
Stated coupon interest - related parties	$	512	$	512	$	1,024	$	1,025
Accretion of debt discount and debt issuance costs - related parties		110		101		218		199
Interest expense - related parties	$	622	$	613	$	1,242	$	1,224
Total interest expense	$	2,492	$	2,453	$	4,974	$	4,896

Schedule of Future Payments on Debt

Future payments on the 2022 Convertible Notes as of June 30, 2020 are as follows (in thousands):

Year ending December 31,
Remainder of 2020	$	4,100
2021		8,200
2022		111,050
Total minimum payments		123,350
Less amount representing interest		(14,350)
2022 Convertible Notes, principal amount		109,000
Less debt discount and debt issuance costs on 2022 Convertible Notes		(3,403)
Net carrying amount of 2022 Convertible Notes	$	105,597

Term Loan

Debt Instrument [Line Items]

Components of Interest Expense

The following table presents the components of interest expense (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Stated coupon interest	$	1,754	$	1,801	$	3,507	$	3,421
Accretion of debt discount and debt issuance costs		200		179		396		332
Interest expense	$	1,954	$	1,980	$	3,903	$	3,753

Schedule of Future Payments on Debt

Future payments on the Term Loan as of June 30, 2020 are as follows (in thousands):

Year ending December 31,
Remainder of 2020	$	3,546
2021		7,034
2022		7,034
2023		39,187
2024		36,072
2025		11,348
Total minimum payments		104,221
Less amount representing interest		(26,221)
Term Loan, gross		78,000
Less debt discount and debt issuance costs on Term Loan		(3,941)
Net carrying amount of Term Loan	$	74,059