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Commitments and Contingencies (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2013
Property, Plant and Equipment [Line Items] |  |  |  |
Reported lease income of the partnership | $ 130,500,000 |  |  |
Charter Hire Commission payable to the Management company | 1.25% |  |  |
Commission payable over the minimum contractual charter revenues | $ 13,784,000 |  |  |
Daily management fee | $ 3,000 | $ 2,900 | $ 2,800 | $ 2,500
Inflation rate adjustment to management fees | 3.00% |  |  |
Management services agreement initial termination date | December 31, 2020 |  |  |
From January 1, 2020 to December 31, 2020 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Management fees | $ 6,752,000 |  |  |
Two time charters |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Nature of lease payments | Escalating |  |  |
Two time charters |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Nature of lease payments | Fixed and variable |  |  |
One time charter |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Term of Time charter contract | 3 years |  |  |
Renewal term of Time charter contract | Two consecutive 12 months periods |  |  |
Two time charters |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Renewal term of Time charter contract | Three consecutive periods of five years |  |  |

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- Definition Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981 + Details
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