Dispositions (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024 USD ($) property	Jun. 30, 2024 USD ($) property	Jun. 30, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of condominium units at 220 Central Park South		$ 31,605	$ 14,216
Sold | 220 Central Park South
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of properties sold | property	2	2
Proceeds from sale of condominium units at 220 Central Park South	$ 31,605	$ 31,605
Net gain on sale of land	$ 15,175	15,175
Continued operation, tax effect of gain (loss) from disposal of not discontinued operations		$ 2,106
Number of properties unsold | property		4
Unsold carrying amount		$ 20,227