Consolidated Joint Venture Preferred Equity/Capital (Details) - The Knickerbocker® - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Total Proceeds from Sale of Preferred Equity Under the Immigrant Investor Program	$ 45,000,000
Current Annual Return	3.25%
Current Return Increase	8.00%
Non-compounding Annual Return	0.25%
Gross Proceeds received to date from sale of preferred equity under the Immigrant Investor Program	$ 44,400,000
Gross Proceeds Net of Issuance Costs from Sale of Preferred Equity Under the Immigrant Investor Program	43,800,000
Gross Proceeds received from sale of preferred equity under the Immigrant Investor Program	600,000	$ 1,800,000
Proceeds not yet received from Immigrant Investor Program	$ 600,000