Debt - Components of Amortization Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Convertible Subordinated Debt
Debt Instrument [Line Items]
Amortization of debt discount and debt issuance costs	$ 287
Amortization of warrants	522
Amortization of the embedded derivatives	57
Amortization	866
Junior Subordinated Debt
Debt Instrument [Line Items]
Amortization of debt discount and debt issuance costs	9
Write-off of debt issuance costs	97
Amortization of warrants	19
Amortization of conversion feature	21
Amortization of the embedded derivatives	5
Amortization	$ 151