Debt Instrument, Option to Extend, Number

No definition available.

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Namespace Prefix:	esrt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Accordion Feature, New Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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

- Definition

Line of Credit Facility, Extension Fee, Percent of Outstanding Commitments Under Revolving Credit Facility

+ References

No definition available.

+ Details

Name:	esrt_LineofCreditFacilityExtensionFeePercentofOutstandingCommitmentsUnderRevolvingCreditFacility
Namespace Prefix:	esrt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Extension Period

+ References

No definition available.

+ Details

Name:	esrt_LineofCreditFacilityExtensionPeriod
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Details

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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=esrt_CreditFacilityRevolvingCreditFacilityMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=esrt_CreditFacilityTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
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- Details

Name:	srt_RangeAxis=srt_MaximumMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=esrt_UnsecuredTermLoanMember
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Period Type:

Debt - Unsecured Revolving Credit and Term Loan Facilities (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) option	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Outstanding borrowings	$ 0		$ 0
Unsecured term loan facility \| Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	1,065,000,000.000
Unsecured term loan facility \| Unsecured revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity	850,000,000
Outstanding borrowings	0		0
Unsecured term loan facility \| Unsecured term loan facilities
Debt Instrument [Line Items]
Maximum borrowing capacity	215,000,000
Outstanding borrowings	215,000,000	$ 215,000,000	$ 215,000,000
Unsecured term loan facility \| Unsecured revolving credit facility and term loan
Debt Instrument [Line Items]
Accordion feature, new maximum borrowing capacity	$ 1,500,000,000
Unsecured term loan facility \| Unsecured revolving credit facility
Debt Instrument [Line Items]
Number of options to extend maturity \| option	2
Extension period (in months)	6 months
Unsecured term loan facility \| Unsecured revolving credit facility \| Minimum
Debt Instrument [Line Items]
Extension fee, as a percent of outstanding commitments under revolving credit facility (as a percent)	0.0625%
Unsecured term loan facility \| Unsecured revolving credit facility \| Maximum
Debt Instrument [Line Items]
Extension fee, as a percent of outstanding commitments under revolving credit facility (as a percent)	0.075%
Unsecured term loan facility \| Unsecured term loan facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175,000,000
Accordion feature, new maximum borrowing capacity	225,000,000
Outstanding borrowings	$ 175,000,000