Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesCurrent
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesCurrentPurchased
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesCurrentReceived
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Expense attributable to emission allowances under the European Union's Emissions Trading System (EU ETS).

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesExpense
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Income attributable to emission allowances under the European Union's Emissions Trading System (EU ETS), such as proceeds from the sale or transfer of surplus allowances.

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesIncome
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesObligation
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the expense recognized for the remeasurement of emission allowances obligations under the European Union's Emissions Trading System (EU ETS). This amount reflects changes in the estimated cost of purchasing EU ETS allowances, based on current market prices, for greenhouse gas emissions that are within the scope of the EU ETS. The remeasurement expense is recorded in the period when the obligation is revalued, typically due to fluctuations in market prices or updates in emissions reporting.

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesRemeasurementExpense
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of emission allowances under the European Union's Emissions Trading System (EU ETS) that remain uncollected and are due from time-charterers and pool arrangements, classified as current.

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemEmissionsAllowancesUncollectedCurrent
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Liability for emissions allowances under the European Union Emissions Trading System (EU ETS), representing the Company's obligation to surrender EU ETS allowances to the EU within the next twelve months for each ton of greenhouse gas emissions reported in the scope of the EU ETS.

No definition available.

Name:	tnp_EuropeanUnionEmissionsTradingSystemLiabilityForEmissionsAllowancesCurrent
Namespace Prefix:	tnp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Liability for emissions allowances under the European Union Emissions Trading System (EU ETS), representing the Company's obligation to surrender EU ETS allowances to the EU beyond the next twelve months for each ton of greenhouse gas emissions expected to be reported in the scope of the EU ETS.

No definition available.