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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Segment and Income (Details) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2017 segment item $ / item | Jul. 18, 2015 segment | Jul. 17, 2015 segment | Dec. 31, 2017 USD ($) item $ / item | Dec. 31, 2016 USD ($) item | Dec. 31, 2015 USD ($) item
Segment reporting |  |  |  |  |  |
Number of reportable segments | segment | 1 | 1 | 2 |  |  |
Revenue and voyage expense recognition |  |  |  |  |  |
Net gain (loss) on purchase and sale of bunker fuel and LCM adjustments | $ |  |  |  | $ 2,021 | $ (4,920) | $ (8,927)
Number of vessels in vessel pools | 0 |  |  | 0 | 20 |
Other Operating Income | $ |  |  |  | $ 0 | $ 960 | $ 0
Spot Market-Related Time Charter Agreement with Profit Sharing Element |  |  |  |  |  |
Revenue and voyage expense recognition |  |  |  |  |  |
Number of vessels under spot market-related time charters which include a profit-sharing element |  |  |  | 6 | 6 | 0
Floor price (in dollars per unit) | $ / item | 3 |  |  | 3 |  |
Allocation of excess profit sharing amount (as a percent) |  |  |  | 50.00% |  |
Clipper Logger Pool and Clipper Sapphire Pool |  |  |  |  |  |
Revenue and voyage expense recognition |  |  |  |  |  |
Number of vessels in vessel pools |  |  |  |  | 13 |
Bulkhandling Handymax A/S Pool |  |  |  |  |  |
Revenue and voyage expense recognition |  |  |  |  |  |
Number of vessels in vessel pools |  |  |  |  | 7 |
Bankruptcy settlement due | Samsun |  |  |  |  |  |
Revenue and voyage expense recognition |  |  |  |  |  |
Other Operating Income | $ |  |  |  |  | $ 934 |

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X
- Definition Represents the net gains (losses) resulting from the difference between the cost of bunker fuel delivered by the terminating charterer and the bunker fuel sold to the new charterer and the lower of cost or market adjustment to re-value bunker fuel on a quarterly basis. + References No definition available. + Details
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- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Details
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