Future Minimum Contractual Revenue - Operating Lease, payments to be received (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Leases [Abstract]
2023	$ 775,268
2024	622,574
2025	505,587
2026	361,578
2027	308,462
2028 and thereafter	619,604
Total	$ 3,193,073

Future rental payments receivable within one year of the balance sheet date under an operating lease.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableCurrentI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYearsI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableInFourYearsI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future rental payments receivable within the third year from the balance sheet date under an operating lease.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYearsI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future rental payments receivable within the second year from the balance sheet date under an operating lease.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYearsI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

No definition available.

Name:	nmm_OperatingLeasesFutureMinimumPaymentsReceivableThereafterI
Namespace Prefix:	nmm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.