Cancellation of undrawn amount under loan or credit facility.

No definition available.

Name:	NMM_CancellationUndrawnAmountUnderLoanOrCreditFacility
Namespace Prefix:	NMM_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage amount of debt issued.

+ References

No definition available.

+ Details

Name:	NMM_InitialPercentageOfIssuanceOfDebt
Namespace Prefix:	NMM_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amortization profile of debt issued.

+ References

No definition available.

+ Details

Name:	NMM_InterestPercentageAmortizationRateOfDebtIssued
Namespace Prefix:	NMM_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of repayment installments of a credit facility agreement.

+ References

No definition available.

+ Details

Name:	NMM_LineOfCreditFacilityNumberOfRepaymentInstallments
Namespace Prefix:	NMM_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium and net of deferred financing costs, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

No definition available.

+ Details

Name:	NMM_LongTermDebtNet
Namespace Prefix:	NMM_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of loan tranches.

+ References

No definition available.

+ Details

Name:	NMM_NumberOfLoanTranches
Namespace Prefix:	NMM_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of vessels acquired by the company.

+ References

No definition available.

+ Details

Name:	NMM_NumberOfVesselsAcquired
Namespace Prefix:	NMM_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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-Paragraph 2
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+ Details

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Balance Type:	credit
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of cash inflow associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

+ Details

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the frequency of periodic payments, which may be presented in a variety of ways (for example, monthly, quarterly, annually).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityFrequencyOfPayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the required periodic payments of both interest and principal.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of long-term debt arrangements, which are debt arrangements that originally require full repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer, and disclosures pertaining to the underlying arrangements, including repayment terms, conversion features, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements. Types of long-term debt arrangements include borrowing under notes payable, bonds payable, debentures, term loans, and other contractual obligations for payment.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_SecuredDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ 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 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Name:	us-gaap_WriteOffOfDeferredDebtIssuanceCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=NMM_NaviosJoyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=NMM_NaviosHarmonyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=NMM_NaviosSunAndLaPaixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=NMM_TermLoanBFacilityMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=NMM_TermLoanBFacilityAdditionMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=NMM_TermLoanBFacilityIncludingTermLoanBFacilityAdditionMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=NMM_August2012CreditFacilityMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=NMM_July2012CreditFacilityMember
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Balance Type:
Period Type:

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Name:	us-gaap_LongtermDebtTypeAxis=NMM_September2014CreditFacilityMember
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Period Type:

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Name:	us-gaap_LongtermDebtTypeAxis=NMM_April2015CreditFacilityMember
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Period Type:

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Name:	us-gaap_LongtermDebtTypeAxis=NMM_May2015CreditFacility60000Member
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Period Type:

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Borrowings (Details) $ in Thousands		1 Months Ended	3 Months Ended			4 Months Ended		5 Months Ended		6 Months Ended				9 Months Ended		10 Months Ended	12 Months Ended
Borrowings (Details) $ in Thousands	Jan. 08, 2016 USD ($)	Jan. 31, 2014 USD ($)	Apr. 01, 2016 USD ($)	Mar. 30, 2015 USD ($)	Mar. 27, 2015 USD ($)	Apr. 30, 2016 USD ($)	Apr. 16, 2015 USD ($)	May 31, 2016 USD ($)	May 31, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 24, 2016 USD ($)	Jun. 23, 2016 USD ($)	Jun. 30, 2013 USD ($)	Sep. 22, 2014 USD ($)	Sep. 30, 2013 USD ($)	Oct. 31, 2013 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Nov. 01, 2013 USD ($)
Debt Instrument [Line Items]
Amount outstanding										$ 386,292							$ 411,292
Unamortized discount										1,970							2,464
Outstanding balance										174,953							194,569
Long- term debt										555,007
Available amount of loan facility										$ 60,000
Navios Joy
Debt Instrument [Line Items]
Amount released from escrow															$ 47,000
Navios Harmony
Debt Instrument [Line Items]
Amount released from escrow																$ 17,750
Navios Sun and Navios La Paix
Debt Instrument [Line Items]
Amount released from escrow		$ 33,429
Term Loan B Facility
Debt Instrument [Line Items]
Debt amount													$ 250,000
Interest rate description										LIBOR
Interest rate percentage													4.25%
Debt instrument term													5 years
Initial percentage of issuance of debt													98.00%
Interest percentage amortization rate of debt issued													1.00%
Amounts held in escrow, through Term Loan B proceeds used													$ 98,179
Number of vessels acquired													4
Unamortized discount													$ 5,000
Description of terms of credit facility										Five-year term with 1.0% amortization profile and was issued at 98.0% (at a discount of $5,000).
Term Loan B Facility Addition
Debt Instrument [Line Items]
Debt amount																			$ 189,500
Initial percentage of issuance of debt																			100.00%
Number of vessels acquired																			5
Description of terms of credit facility										The add-on to the Term Loan B facility bears the same terms as Term Loan B facility and was issued at 100%. Navios Partners used the net proceeds to partially finance the acquisition of five Container vessels.
Term Loan B including addition
Debt Instrument [Line Items]
Amount outstanding										$ 386,292							411,292
Unamortized discount										1,970
Balloon payment on the last repayment date										386,292
Long term debt, net										384,322
Repayment of debt				$ 21,000				$ 25,000
Write-off of deferred finance fees				$ 256				$ 187
August 2012 Credit Facility
Debt Instrument [Line Items]
Repayment of debt													41,225
Write-off of deferred finance fees													707
July 2012 Credit Facility
Debt Instrument [Line Items]
Balloon payment on the last repayment date										58,223
Outstanding balance										72,046
Repayment of debt	$ 16,235				$ 2,346								$ 101,614
Write-off of deferred finance fees	$ 82
September 2014 Credit Facility
Debt Instrument [Line Items]
Credit facility														$ 56,000
Number of loan tranches														2
Outstanding balance										$ 0
Interest rate percentage														3.00%
Interest rate description										LIBOR plus 3,00%
Repayment of debt																	21,312
Write-off of deferred finance fees			$ 340														$ 314
April 2015 Credit Facility
Debt Instrument [Line Items]
Credit facility							$ 164,000
Number of loan tranches							2
Balloon payment on the last repayment date										$ 38,431
Outstanding balance										$ 73,906
Repayment installments										24
Repayment frequency										quarterly
Repayment amount										$ 1,478
Interest rate percentage							2.75%
Interest rate description										LIBOR plus 2,75%
Cancellation of undrawn amount																		$ 83,000
Final maturity date										Apr. 20, 2022
Navios Holdings Credit Facility
Debt Instrument [Line Items]
Credit facility									$ 60,000
Outstanding balance										$ 0
Interest rate percentage									3.00%
Interest rate description										LIBOR plus 3,00%
Amount drawn down						$ 21,000
Write-off of deferred finance fees						$ 600
Final maturity date										Jan. 02, 2017
June 2016 Credit Facility
Debt Instrument [Line Items]
Debt amount												$ 30,000
Interest rate percentage												4.00%
Interest rate description										LIBOR plus 4,00%
Amount drawn down											$ 29,000
Final maturity date										Jan. 30, 2017