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Commitments and Contingencies - Unfunded Capital Expenditures (Details) $ in Millions	Mar. 31, 2026 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Estimated capital expenditures to be incurred	$ 93.9

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- Definition

Unfunded Capital Expenditures

+ References

No definition available.

+ Details

Name:	esrt_UnfundedCapitalExpenditures
Namespace Prefix:	esrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

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