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Transactions with Related Parties - Additional Information - Interchart (Details) - Interchart Shipping Inc. - USD ($) $ in Thousands | 2 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2014
Related Party Transaction [Line Items] |  |  |
Percentage of total outstanding common shares |  |  | 33.00%
Services Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Monthly lump sum fee |  | $ 275 |
Expiration date of agreement |  | Dec. 31, 2018 |
New Service Agreement |  |  |
Related Party Transaction [Line Items] |  |  |
Monthly lump sum fee | $ 325 |  |
Expiration date of agreement | Dec. 31, 2019 |  |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Details
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