Long-term Debt And Finance Leases - Summary of Long-term Debt and Finance Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Notes payable	$ 15,522	$ 9,974
Finance leases		350
Total debt	112,334	119,546
Current portion of long-term debt and finance leases	(102,621)	(112,401)
Total long-term debt and finance leases	9,713	7,145
Credit Facility
Debt Instrument [Line Items]
Principal outstanding	20,500	35,000
Unamortized debt discount and debt issuance costs	(140)	(205)
Carrying amount	20,360	34,795
Senior Loan Facility
Debt Instrument [Line Items]
Principal outstanding	29,000	29,000
Unamortized debt discount and debt issuance costs	(626)	(1,232)
Carrying amount	28,374	27,768
6% Convertible Notes Due 2023
Debt Instrument [Line Items]
Principal outstanding	60,000	60,000
Unamortized debt discount and debt issuance costs	(11,922)	(13,341)
Carrying amount	$ 48,078	$ 46,659

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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Present value of lessee's discounted obligation for lease payments from finance lease.

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