Property Acquisitions and Consolidations - Schedule of Property Acquisitions and Consolidations (Details) $ in Millions	Mar. 31, 2026 USD ($) ft²
65 East 55th Street (Park Avenue Tower)
Real Estate [Line Items]
Unaudited Approximate Square Feet \| ft²	622,000
Gross Asset Valuation \| $	$ 768.4
Commercial Condominium at 610 Park Avenue
Real Estate [Line Items]
Unaudited Approximate Square Feet \| ft²	18,000
Gross Asset Valuation \| $	$ 18.5

Amount of asset acquired in business combination and recognized at acquisition date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-1

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant