Summary of Significant Accounting Policies (Details Textual) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016 shares	Sep. 30, 2015 shares	Sep. 30, 2016 USD ($) Partnership shares	Sep. 30, 2015 shares
Summary of Significant Accounting Policies (Textual)
Number of consolidated partnerships | Partnership			47
Ceiling test impairment cost | $			$ 4.3
Cost method investments, additional information			The Company has less than 20% of the voting interests of a corporate affiliate or less than a 5% interest of a partnership or limited liability company and does not have significant influence.
Equity method investment, additional information			If the Company holds between 20% and 50% of the voting interest in non-consolidated corporate affiliates or greater than a 5% interest in partnerships or limited liability companies and exercises significant influence or control, the equity method of accounting is used to account for the investment.
Warrant [Member]
Summary of Significant Accounting Policies (Textual)
Anti-dilutive earnings per shares	250,000	250,000	250,000	250,000
Restricted Performance Units [Member]
Summary of Significant Accounting Policies (Textual)
Common stock equivalent restricted to future contingencies	6,000,000	6,300,000	6,000,000	6,300,000
Anti-dilutive earnings per shares			5,800,000	5,000,000
Nytis LLC [Member]
Summary of Significant Accounting Policies (Textual)
Percentage of ownership interest in the subsidiary			99.00%
Nytis USA [Member]
Summary of Significant Accounting Policies (Textual)
Percentage of ownership interest in the subsidiary			100.00%