v3.10.0.1

Derivative Instruments - Additional Information (Details) | May 01, 2017 | Jun. 01, 2016 USD ($) vessel | Sep. 30, 2018 shares | Dec. 31, 2017 shares | Jan. 31, 2014 shares
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Time-charter swap agreement |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Aframax equivalent vessel percent |  | 55.00% |  |  |
Derivative, number of vessel-equivalents in swap agreement | vessel |  | 2 |  |  |
Agreement daily receivable | $ |  | $ 27,776 |  |  |
Derivative, brokerage fee, percent |  | 1.25% |  |  |
Derivative, deduction from daily payments made | $ |  | $ 500 |  |  |
Derivative, term of contract (in months) |  | 11 months |  |  |
Derivative, term of contract extension, counterparty option (in months) | 2 months | 2 months |  |  |
Tanker Investments Ltd. | Maximum |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of shares available through exercise of stock purchase warrant (in shares) |  |  |  |  | 750,000
Tanker Investments Ltd. | Stock purchase warrant |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of stock purchase warrants (in warrants) |  |  |  | 1 |
Tanker Investments Ltd. | Stock purchase warrant | Maximum |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Number of shares available through exercise of stock purchase warrant (in shares) |  |  | 750,000 |  |

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- Definition Derivative, Brokerage Fee, Percent + References No definition available. + Details
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- Definition Derivative, Daily Payments Received + References No definition available. + Details
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- Definition Derivative, Deduction from Daily Payments Made + References No definition available. + Details
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- Definition Derivative, Number of Vessel-Equivalents in Swap Agreement + References No definition available. + Details
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- Definition Derivative, Term of Contract Extension, Counterparty Option + References No definition available. + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The percentage of expected requirements covered by the aggregate notional amount of derivative contracts expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract as a percentage of expected need. + References No definition available. + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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- Details
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