Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Summary of Future Principal Payments

Based on a 24-month amortization of the outstanding principal amounts for the Company’s Growth Capital Advances beginning on January 1, 2019 as discussed above, the following table sets forth by year the Company’s required future principal payments (in thousands):

Years Ending December 31,
2018 (remaining three months)	$	—
2019		3,750
2020		3,750
Thereafter		—
	$	7,500