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

No definition available.

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Period Type:	duration

- Definition

The cash outflow from prepayments of debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The vessels' capacity in deadweight tonnage (DWT).

+ References

No definition available.

+ Details

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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

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

- Definition

The number and type of vessels financed.

+ References

No definition available.

+ Details

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

- Definition

The type of vessel.

+ References

No definition available.

+ Details

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

- Definition

The year that the vessel was built.

+ References

No definition available.

+ Details

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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

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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

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- 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

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-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

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

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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

- 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/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
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-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

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

- Definition

The liability due as of the balance sheet date for leasebacks accounted for using the deposit method.

+ References

+ Details

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

- Definition

The date of the transaction involving the sale of the property to another party and the lease of the property back to the seller.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 840
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- 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

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Data Type:	xbrli:stringItemType
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- Details

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Borrowings - Financial Liabilities (Details Narrative) $ in Thousands	1 Months Ended				3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Nov. 30, 2023 USD ($) Vessel capacity in DWT	May 31, 2023 USD ($) Capacity	Apr. 30, 2018 USD ($)	Dec. 31, 2025 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($) Vessel capacity in DWT	Dec. 31, 2024 USD ($)	Jan. 31, 2026 USD ($)	Dec. 31, 2021 USD ($)	Feb. 29, 2020 USD ($)	Nov. 30, 2019 USD ($)	Mar. 31, 2018 USD ($)
Sale Leaseback Transaction [Line Items]
Finance lease liabilities					$ 329,860	$ 310,064	$ 329,860
Two newbuilding 5,300 TEU containerships and two newbuilding Aframax/ LR2 tanker vessels [Member]
Sale Leaseback Transaction [Line Items]
Amount drawn down							43,850	$ 131,750
Financial Liabilities [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						January 2026
Finance lease, liability									$ 36,000
Finance lease liabilities						$ 34,500
Maturity date						first quarter of 2031
Debt instrument, description of variable rate basis						Term SOFR
Debt instrument, basis spread on variable rate						190.00%
Financial Liabilities [Member] \| Two new building 5,300 TEU containerships and two newbuilding Aframax/ LR2 tanker vessels [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						May 2023
Vessel type			Aframax/LR2
Vessel capacity in TEU \| Capacity			5,300
Amount drawn down						$ 44,500	$ 6,455
Finance lease liabilities	$ 89,000		$ 178,000			$ 120,205
Maturity date						ten years after the delivery date
Debt instrument, description of variable rate basis						Term SOFR
Debt instrument, basis spread on variable rate						210.00%
Line of credit facility, remains to be drawn						$ 38,045
Prepayments of debt	$ 81,315
Financial Liabilities [Member] \| Two newbuilding 5,300 TEU containerships and two newbuilding Aframax/ LR2 tanker vessels [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						November 2023
Vessel year built						2026
Vessel type						Αframax/LR2 newbuilding tanker vessels
Vessel capacity in DWT \| Vessel capacity in DWT		5,300					115,807
Finance lease liabilities		$ 175,600				$ 169,258			$ 90,000
Maturity date						ten and nine years after the delivery date
Debt instrument, description of variable rate basis						Term SOFR
Debt instrument, basis spread on variable rate						200.00%
Prepayments of debt					$ 82,480
Financial Liabilities [Member] \| Navios Nave Polaris [Member]
Sale Leaseback Transaction [Line Items]
Vessel year built							2025
Vessel type							Aframax/LR2 tanker vessel
Sale and Leaseback Agreements $19,000 - December 2021 II [Member] \| Upon Acquisition of 36-vessel drybulk fleet from Navios Holdings [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						December 2021
Vessel financed						a Capesize vessel
Finance lease liabilities						$ 8,622				$ 19,000
Maturity date						fourth quarter of 2025
Sale and Leaseback Agreements $20,000 [Member] \| Upon Acquisition of 36-vessel drybulk fleet from Navios Holdings [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						December 2021
Vessel financed						a Capesize vessel
Finance lease liabilities						$ 8,675				$ 20,000
Maturity date						fourth quarter of 2025
Sale and Leaseback Agreements $35,000 [Member] \| Upon Acquisition of 36-vessel drybulk fleet from Navios Holdings [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						February 2020
Vessel financed						a Capesize vessel
Finance lease liabilities						$ 17,936					$ 35,000
Maturity date						fourth quarter of 2025
Sale and Leaseback Agreements $33,000 [Member] \| Upon Acquisition of 36-vessel drybulk fleet from Navios Holdings [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						November 2019
Vessel financed						a Capesize vessel
Finance lease liabilities						$ 16,709						$ 33,000
Maturity date						fourth quarter of 2025
Sale and Leaseback Agreements $71,500 [Member] \| Upon Acquisition of 36-vessel drybulk fleet from Navios Holdings [Member]
Sale Leaseback Transaction [Line Items]
Sale leaseback transaction, date						March 31, 2018
Amount drawn down				$ 71,500
Finance lease liabilities						$ 6,162							$ 71,500
Prepayments of debt							$ 18,776