Properties Held for Sale and Property Dispositions - Property sold (Details) - 760 Madison Avenue $ in Millions	6 Months Ended
Jun. 30, 2025 USD ($) ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unaudited Approximate Square Feet (sqft) \| ft²	19,185
Sales Price	$ 99.3
Gain on sale	$ 0.2

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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