Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Debt Instrument [Line Items]
2019 Refinancing Term Loan - term loan payable in quarterly installments of principal, (commencing in September 2020) plus interest through April 2022	$ 41,000	$ 41,000
Finance leases – collateralized by vehicles, payable in monthly installments of principal, plus interest ranging from 4.85% to 6.45% through 2025	6,285	6,585
Total debt	47,285	47,585
Less - Current portion of long-term debt	(6,414)	(4,425)	$ (2,235)
Less - Unamortized discount and debt issuance costs	(3,350)	(4,292)
Long-term debt	$ 37,521	$ 38,868
Minimum
Debt Instrument [Line Items]
Finance lease, discount rate	4.85%
Maximum
Debt Instrument [Line Items]
Finance lease, discount rate	6.45%

Long-term Debt, Gross and Lease Obligation

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

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- Definition

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

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Discount rate used by lessee to determine present value of finance lease payments.

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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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Amount of long-term debt and lease obligation, classified as noncurrent.

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

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