Long-term Debt And Finance Leases - Summary of Long-term Debt and Finance Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Secured note payable	$ 7,934	$ 9,974
Unsecured note payable	6,829
Finance leases		350
Total debt	124,155	119,546
Debt subject to compromise	(95,829)
Total debt not subject to compromise	28,326	119,546
Current portion of long-term debt and finance leases	(28,326)	(112,401)
Total long-term debt and finance leases	0	7,145
Credit Facility
Debt Instrument [Line Items]
Principal outstanding	20,500	35,000
Unamortized debt discount and debt issuance costs	(108)	(205)
Carrying amount	20,392	34,795
Senior Loan Facility
Debt Instrument [Line Items]
Principal outstanding	29,000	29,000
Unamortized debt discount and debt issuance costs	(400)	(1,232)
Carrying amount	29,000	27,768
6% Convertible Notes Due 2023
Debt Instrument [Line Items]
Principal outstanding	60,000	60,000
Unamortized debt discount and debt issuance costs		(13,341)
Carrying amount	$ 60,000	$ 46,659

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Net liabilities not subject to compromise..

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Amount of short-term and long-term debt and lease obligation.

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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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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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