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v3.19.3.a.u2

Long-Term Debt - Schedule of Revolving Credit Facility and Long-Term Debt (Parenthetical) (Detail) | Dec. 31, 2019 | Dec. 31, 2018
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5.25% Working Capital Revolver Loan [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility, interest rate | 5.25% | 5.25%
5.25% Secured Promissory Note Due 2021 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, effective Interest Rate | 5.25% | 5.25%
6.03% Secured Promissory Note Due 2023 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, effective Interest Rate | 6.03% | 6.03%
8.32% Secured Financing Due 2023 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, effective Interest Rate | 8.32% | 8.32%
8.76% Secured Loan Agreement [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, effective Interest Rate | 8.76% | 8.76%

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