Equity and Noncontrolling Interests - Summary of Capital Structure (Details) (USD $)	9 Months Ended	12 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Class Of Stock [Line Items]
Number of shares authorized	50,000,000us-gaap_CommonStockSharesAuthorized	50,000,000us-gaap_CommonStockSharesAuthorized
Number of shares issued	9,891,424us-gaap_CommonStockSharesIssued	9,832,585us-gaap_CommonStockSharesIssued
Number of shares outstanding	9,886,778us-gaap_CommonStockSharesOutstanding	9,832,585us-gaap_CommonStockSharesOutstanding
Par value per share	$ 0.01	$ 0.01
Number of shares outstanding, treasury stock	4,646us-gaap_TreasuryStockShares
Preferred Stock - Series A
Class Of Stock [Line Items]
Number of shares authorized	50,000,000	50,000,000
Number of shares issued	45,500,000	45,500,000
Number of shares outstanding	45,500,000	45,500,000
Par value per share	$ 0.01	$ 0.01
Liquidation preference per share	$ 100	$ 100
Dividend rate	Prime + 2%	Prime + 2%
Dividend rate - floor	8.00%	8.00%
Initial dividend payment date	Mar. 31, 2013	Mar. 31, 2013
Subsequent dividend payment dates	Quarterly	Quarterly
Convertible to common stock	Yes	Yes
Conversion period	Anytime	Anytime
Conversion ratio - preferred to common	6.94008	6.94008
Series B Preferred Stock
Class Of Stock [Line Items]
Number of shares authorized	115,000,000	115,000,000
Number of shares issued	51,956,000	51,956,000
Number of shares outstanding	51,956,000	51,956,000
Par value per share	$ 0.01	$ 0.01
Liquidation preference per share	$ 100	$ 100
Dividend rate	8.00%	8.00%
Dividend rate - floor	8.00%	8.00%
Initial dividend payment date	Dec. 31, 2013	Dec. 31, 2013
Subsequent dividend payment dates	Quarterly	Quarterly
Convertible to common stock	Yes	Yes
Conversion period	Anytime	Anytime
Conversion ratio - preferred to common	6.94008	6.94008

No authoritative reference available.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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