The element refers to the expected date of delivery of vessels, bareboats and other significant assets.

No definition available.

Name:	nmm_DateExpectedDelivery
Namespace Prefix:	nmm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in YYYY-MM format.

+ References

No definition available.

+ Details

Name:	nmm_LineOfCreditFacilityMaturityDate
Namespace Prefix:	nmm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The vessels' capacity in Twenty- foot Equivalent Unit (TEU).

+ References

No definition available.

+ Details

Name:	nmm_VesselCapacityInTEU
Namespace Prefix:	nmm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The type of vessel.

+ References

No definition available.

+ Details

Name:	nmm_VesselType
Namespace Prefix:	nmm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The year that the vessel was built.

+ References

No definition available.

+ Details

Name:	nmm_VesselYearBuilt
Namespace Prefix:	nmm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of reference rate used for variable rate of debt instrument.

+ References

No definition available.

+ Details

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

- Definition

Per unit of ownership amount of cash distributions declared to unit-holder of a limited liability company (LLC).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

+ Details

Name:	us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionsDeclaredPerUnit
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash distribution paid to unit-holder of limited partnership (LP).

+ References

+ Details

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

- Definition

Date of record for distribution of cash or unit to limited partner of limited partnership (LP), in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerDateOfRecord
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date of distribution for distribution of cash or unit to limited partner of limited partnership (LP), in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DistributionMadeToLimitedPartnerDistributionDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebtDescription
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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&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 inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis=nmm_QuarterlyCashDistributionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=nmm_NewCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent events (Details Narrative) $ / shares in Units, $ in Thousands	1 Months Ended				2 Months Ended	3 Months Ended				4 Months Ended		6 Months Ended		7 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended
	Jan. 31, 2022 USD ($) $ / shares	Jan. 31, 2021 USD ($) $ / shares	Jan. 31, 2020 USD ($) $ / shares	Jan. 31, 2019 USD ($) $ / shares	Feb. 28, 2022 USD ($)	Mar. 31, 2022 USD ($)	Mar. 28, 2022 USD ($)	Oct. 31, 2020 USD ($) $ / shares	Apr. 30, 2019 USD ($) $ / shares	Apr. 30, 2021 USD ($) $ / shares	Apr. 30, 2020 USD ($) $ / shares	Jul. 31, 2020 USD ($) $ / shares	Jul. 31, 2019 USD ($) $ / shares	Jul. 31, 2021 USD ($) $ / shares	Oct. 31, 2019 USD ($) $ / shares	Oct. 31, 2021 USD ($) $ / shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Subsequent Event [Line Items]
Proceeds from Sale of Property, Plant, and Equipment																	$ 121,080	$ 8,183	$ 5,978
Gain (Loss) on Disposition of Property Plant Equipment																	$ 33,625	$ 0	$ 0
Distribution Made to Limited Liability Company (LLC) Member, Distributions Declared, Per Unit \| $ / shares	$ 0.05	$ 0.05	$ 0.30	$ 0.30				$ 0.05	$ 0.30	$ 0.05	$ 0.30	$ 0.05	$ 0.30	$ 0.05	$ 0.30	$ 0.05
Distribution Made to Limited Partner, Distribution Date	Feb. 11, 2022	Feb. 12, 2021	Feb. 13, 2020	Feb. 14, 2019				Nov. 13, 2020	May 14, 2019	May 14, 2021	May 14, 2020	Aug. 13, 2020	Aug. 09, 2019	Aug. 12, 2021	Nov. 14, 2019	Nov. 12, 2021
Distribution Made to Limited Partner, Date of Record	Feb. 09, 2022	Feb. 09, 2021	Feb. 11, 2020	Feb. 11, 2019				Nov. 09, 2020	May 10, 2019	May 11, 2021	May 11, 2020	Aug. 10, 2020	Aug. 06, 2019	Aug. 09, 2021	Nov. 07, 2019	Nov. 08, 2021
Distribution Made to Limited Partner, Cash Distributions Paid	$ 1,541	$ 579	$ 3,365	$ 3,458				$ 579	$ 3,364	$ 1,127	$ 3,366	$ 562	$ 3,364	$ 1,368	$ 3,364	$ 1,541
Subsequent Event [Member] \| Quarterly Cash Distribution [Member]
Subsequent Event [Line Items]
Distribution Made to Limited Liability Company (LLC) Member, Distributions Declared, Per Unit \| $ / shares	$ 0.05
Distribution Made to Limited Partner, Distribution Date	Feb. 11, 2022
Distribution Made to Limited Partner, Date of Record	Feb. 09, 2022
Distribution Made to Limited Partner, Cash Distributions Paid	$ 1,541
Subsequent Event [Member] \| Navios Utmost [Member]
Subsequent Event [Line Items]
Vessel year built					2006
Vessel capacity in TEU					8,204
Subsequent Event [Member] \| Navios Unite [Member]
Subsequent Event [Line Items]
Vessel type					Containerships
Subsequent Event [Member] \| Navios Utmost and Navios Unite [Member]
Subsequent Event [Line Items]
Proceeds from Sale of Property, Plant, and Equipment					$ 220,000
Date of expected delivery of vessel					second half of 2022
Gain (Loss) on Disposition of Property Plant Equipment					$ 144,304
Subsequent Event [Member] \| New Credit Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 55,000
Proceeds from Lines of Credit						$ 55,000
Long-term Debt, Description							in order to refinance the existing indebtedness of three of its vessels and for general corporate purposes
Maturity date							March 2027
Debt Instrument, Description of Variable Rate Basis							daily cumulative or non-cumulative compounded RFR
Debt Instrument, Basis Spread on Variable Rate							2.25%