Debt - Summary of Future Principal Payments (Details) - Silicon Valley Bank $ in Thousands	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
2020	$ 2,528
2021	5,316
2022	5,677
2023	1,479
Thereafter	0
Total principal payments	15,000
Less unamortized loan fees	(296)
Total term loan borrowings	$ 14,704

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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