Long-term Debt (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Components of Borrowings, Including Current Portion

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

	June 30, 2019			December 31, 2018
Borrowings under term loan agreements	$	80,000		$	60,000
Paid-in-kind interest on term loan agreements	1,341			400
Unamortized debt discounts	(2,899		)	(2,004		)
Long-term debt, net of discounts	$	78,442		$	58,396

Scheduled Future Principal Payments under Outstanding Debt Obligations

Scheduled future principal payments for outstanding debt were as follows at June 30, 2019 (in thousands):

Years Ending December 31,
Remainder of 2019	$	—
2020	—
2021	—
2022	—
2023	—
Thereafter	81,341
	$	81,341