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 deadweight tonnage (DWT).

+ References

No definition available.

+ Details

Name:	nmm_VesselCapacity
Namespace Prefix:	nmm_
Data Type:	xbrli:integerItemType
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

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

- 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
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

+ Details

Name:	us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=nmm_TwoThousandNineBuiltVLCCVesselMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=nmm_TwoThousandElevenBuiltVLCCVesselMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorPropertyClassAxis=nmm_TwoThousandTenBuiltPostPanamaxVesselMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

Subsequent Events (Details Narrative) $ in Thousands							1 Months Ended		3 Months Ended	8 Months Ended	10 Months Ended	12 Months Ended
Subsequent Events (Details Narrative) $ in Thousands	Jun. 21, 2023 Capacity	Apr. 27, 2023 Capacity	Mar. 29, 2023 Capacity	Mar. 06, 2023 Capacity	Feb. 16, 2023 Capacity	Feb. 05, 2023 Capacity	Feb. 28, 2026 Capacity	Jan. 31, 2026 USD ($)	Mar. 31, 2026 USD ($) Capacity	Aug. 31, 2023 Capacity	Nov. 09, 2023 Capacity	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) Capacity	Dec. 31, 2023 USD ($)
Subsequent Event [Line Items]
Vessel year built	2023	2023	2023	2016		2023				2019	2023		2024
Vessel capacity in TEU \| Capacity					5,300
Vessel type	Capesize	Capesize	Capesize	Capesize		Kamsarmax				Kamsarmax	containership
Vessel capacity in DWT \| Capacity	182,212	182,169	182,115	181,221		82,010				81,692	5,300		5,300
Aggregate gross sale proceeds												$ 191,124	$ 190,293	$ 259,004
Aggregate gain on sale of vessels												16,926	25,760	$ 50,248
Finance lease liabilities												$ 329,860	$ 325,784
Forecast [Member]
Subsequent Event [Line Items]
Aggregate gross sale proceeds									$ 148,850
Aggregate gain on sale of vessels									$ 66,040
Date of expected delivery of vessel									first half of 2026
Forecast [Member] \| 2009-built VLCC Vessel [Member]
Subsequent Event [Line Items]
Vessel year built									2009
Vessel type									VLCC
Vessel capacity in DWT \| Capacity									296,945
Forecast [Member] \| 2011-built VLCC Vessel [Member]
Subsequent Event [Line Items]
Vessel year built									2011
Vessel type									VLCC
Vessel capacity in DWT \| Capacity									297,491
Forecast [Member] \| 2010-built Post-Panamax Vessel [Member]
Subsequent Event [Line Items]
Vessel year built									2010
Vessel type									Post-Panamax
Vessel capacity in DWT \| Capacity									93,062
Subsequent Event [Member]
Subsequent Event [Line Items]
Finance lease liabilities								$ 36,000
Maturity date								five years after each drawdown date
Debt Instrument, Description of Variable Rate Basis								Term SOFR
Debt instrument, basis spread on variable rate								190.00%
Subsequent Event [Member] \| Two Newbuilding Tankers [Member]
Subsequent Event [Line Items]
Vessel type								Αframax/LR2
Finance lease liabilities								$ 90,000
Maturity date								nine years after the delivery date
Debt Instrument, Description of Variable Rate Basis								Term SOFR
Debt instrument, basis spread on variable rate								200.00%
Subsequent Event [Member] \| Nave Anthos [Member]
Subsequent Event [Line Items]
Vessel year built							2026
Vessel type							Aframax/LR2
Vessel capacity in DWT \| Capacity							116,998