Borrowings - Future Repayments on Outstanding Borrowings (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
2024	$ 80,500
Borrowing outstanding prior to accounting for debt discount	$ 80,500

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant