Basis of Presentation and Significant Accounting Policies (Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Contingency [Line Items]
Minimum percentage of taxable income distributed as dividends	90.00%
Deferred tax assets, net	$ 7,944	$ 8,582
Deferred tax liabilities	54,597	40,591
Income tax expense (benefit)	$ 21,660	$ (10,496)	$ 36,630
Effective income tax reconciliation, percent	(6.00%)	(5.30%)	(8.60%)
Estimated taxable income net	$ 398,644	$ 413,026	$ 419,812
Net basis difference of assets and liabilities between tax basis and GAAP basis	1,600,000
Federal Tax Authority
Income Tax Contingency [Line Items]
Net operating loss carryforwards	166,000
Net operating loss carryforwards, valuation allowance	145,000
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss carryforwards	208,000
Net operating loss carryforwards, valuation allowance	186,000
The Farley Building
Income Tax Contingency [Line Items]
Income tax expense (benefit)	13,665	10,868
220 CPS condominium units
Income Tax Contingency [Line Items]
Income tax expense (benefit)	6,016
Taxable Reit Subsidiaries
Income Tax Contingency [Line Items]
Income tax expense (benefit)		(27,910)
220 Central Park South
Income Tax Contingency [Line Items]
Income tax expense (benefit)	$ 6,016	$ 5,711	$ 49,221
Ordinary Income
Income Tax Contingency [Line Items]
Percentage of taxable income distributed	100.00%	84.20%	100.00%
Qualified Dividend
Income Tax Contingency [Line Items]
Percentage of taxable income distributed		15.80%