Borrowings - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Restrictive covenants		As of December 31, 2019, Navios Partners was in compliance with the financial covenants and/or the prepayments and/or the cure provisions, as applicable, in each of its credit facilities.
Navios Holdings
Debt Instrument [Line Items]
Ownership percentage of Navios Holdings	18.80%	18.80%
Credit facilities
Debt Instrument [Line Items]
Restrictive covenants		The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Partners from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; charging, pledging or encumbering the vessels; changing the flag, class, management or ownership of Navios Partners’ vessels; changing the commercial and technical management of Navios Partners’ vessels; selling or changing the beneficial ownership or control of Navios Partners’ vessels; not maintaining Navios Holdings’ (or its affiliates) ownership in Navios Partners of at least 15.0%; and subordinating the obligations under the credit facilities to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement.
Description of violation or event of default		The credit facilities require compliance with a number of financial covenants, including: (i) maintain a required security amount ranging over 120% to 140%; (ii) minimum free consolidated liquidity in an amount equal to at least $500 to $650 per owned vessel; (iii) maintain a ratio of EBITDA to interest expense of at least 2.00:1.00; (iv) maintain a ratio of total liabilities or total debt to total assets (as defined in our credit facilities) ranging of less than 0.75; and (v) maintain a minimum net worth to $135,000.
Total Liabilities to Total Assets ratio		0.75
Minimum net worth required for compliance		$ 135,000
Credit facilities \| Minimum
Debt Instrument [Line Items]
Ratio of EBITDA to interest expense		200.00%
Minimum free consolidated liquidity		$ 500
Security cover ratio		120.00%
Credit facilities \| Minimum \| Navios Holdings
Debt Instrument [Line Items]
Ownership percentage of Navios Holdings		15.00%
Credit facilities \| Maximum
Debt Instrument [Line Items]
Minimum free consolidated liquidity		$ 650
Security cover ratio		140.00%
Term Loan B facility \| Minimum
Debt Instrument [Line Items]
Loan to value ratio		80.00%
Term Loan B facility \| Maximum
Debt Instrument [Line Items]
Loan to value ratio		100.00%

The EBITDA to net interest expenses ratio value.

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The loan to value ratio value.

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The lowest amount of liquid assets required by loan agreement.

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The total liabilities to total assets ratio value.

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The security cover ratio value.

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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.

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No definition available.

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Description of covenants that limit or prohibit certain actions or activities without the lender's prior consent within a specified period of time or until certain specified targets are achieved for example, reduction of the debt or an increase in net worth to a specified amount).

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Discussion of the facts and amounts pertaining to each failure to comply with an affirmative or negative covenant of a long-term debt instrument, including violating payment terms or an inability to meet certain minimum financial requirements or achieve or maintain certain financial ratios. The discussion would generally be expected to also include whether or not the failure can and will be overcome and a description of the terms of any waivers, including the amount of the waiver and the period of time covered by the waiver, and if reclassification of long-term debt to current has been made in the current balance sheet.

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates.

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