Investment in Unconsolidated Joint Venture - Consolidated Balance Sheet (Detail 1) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Cash and cash equivalents	$ 3,553	$ 4,578
Total Assets	122,217	124,084
Total Liabilities	2,060	1,036
Worldwide Plaza [Member]
Schedule of Equity Method Investments [Line Items]
Real estate assets, at cost	849,404	848,231
Less accumulated depreciation and amortization	(321,609)	(317,058)
Total real estate assets, net	527,795	531,173
Cash and cash equivalents	76,754	66,000
Other assets	125,245	125,919
Total Assets	729,794	723,092
Debt	1,317,048	1,253,810
Other liabilities	211,275	260,473
Total Liabilities	1,528,323	1,514,283
Deficit	(798,529)	(791,191)
Total liabilities and deficit	$ 729,794	$ 723,092