Long-term Debt (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Components of Borrowings, Including Current Portion

Long-term debt consisted of the following (in thousands):

	March 31, 2019			December 31, 2018
Borrowings under term loan agreements	$	60,000		$	60,000
Paid in-kind interest on term loan agreements	853			400
Unamortized debt discounts	(1,923		)	(2,004		)
Long-term debt, net of discounts	$	58,930		$	58,396

Scheduled Future Principal Payments under Outstanding Debt Obligations

Scheduled future principal payments for outstanding debt were as follows at March 31, 2019 (in thousands):

Years Ending December 31,
Remainder of 2019	$	—
2020	—
2021	—
2022	—
2023	—
Thereafter	60,853
	$	60,853