Debt - Scheduled Debt Maturities (Details)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
2019	$ 29,176,230
2020	24,940,984
2021	24,940,984
2022	259,541,802
Long-term debt, gross	338,600,000
Norwegian Bond Debt
Debt Instrument [Line Items]
2019	8,000,000
2020	8,000,000
2021	8,000,000
2022	172,000,000
Long-term debt, gross	196,000,000
New First Lien Facility
Debt Instrument [Line Items]
2019	10,750,000
2020	8,600,000
2021	8,600,000
2022	32,050,000
Long-term debt, gross	60,000,000
Ultraco Debt Facility
Debt Instrument [Line Items]
2019	10,426,230
2020	8,340,984
2021	8,340,984
2022	55,491,802
Long-term debt, gross	$ 82,600,000

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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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