Investment in Unconsolidated Joint Venture - Consolidated Balance Sheet (Detail 1) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Cash and cash equivalents	$ 8,192	$ 7,535
Total Assets	123,422	325,837
Total Liabilities	2,261	2,726
Worldwide Plaza [Member]
Schedule of Equity Method Investments [Line Items]
Real estate assets, at cost	846,124	840,798
Less accumulated depreciation and amortization	(298,953)	(281,011)
Total real estate assets, net	547,171	559,787
Cash and cash equivalents	47,613	53,351
Other assets	126,811	122,921
Total Assets	721,595	736,059
Debt	1,241,903	1,271,177
Other liabilities	240,428	181,005
Total Liabilities	1,482,331	1,452,182
Deficit	(760,736)	(716,123)
Total liabilities and deficit	$ 721,595	$ 736,059