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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Operating Loss Carryforwards [Line Items] |  |  |
Effective income tax rate (as a percent) | 44.50% | 33.60% | 26.00%
Valuation allowance | $ 0 | $ 0 | $ 0
Unrecognized tax benefits | 0 | $ 0 | $ 0
Empire State Realty Trust |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
NOL carryforwards | 103,000,000 |  |
Observatory | Operating Segments |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
NOL carryforwards | 1,500,000 |  |
Income tax receivable | $ 2,500,000 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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- Definition Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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