CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Allowance for doubtful accounts receivable (in dollars)	$ 459	$ 539
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred Stock Dividend Rate Percentage	8.00%	8.00%
Preferred stock, liquidation preference per share	$ 25.00	$ 25.00
Preferred stock, shares issued	6,100,000	6,100,000
Preferred stock, shares outstanding	6,100,000	6,100,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	64,742,713	64,502,430
Common stock, shares outstanding	64,742,713	64,502,430
Real Estate Investments, Other	935,962	716,285
Real Estate Investment Property, Accumulated Depreciation	128,121	102,356
Other Assets	37,569	42,410
Secured Debt	300,673	205,531
Accounts Payable and Accrued Liabilities, Total	53,816	64,348
Other Liabilities	22,092	11,167
Cash and Cash Equivalents, at Carrying Value, Total	15,240	32,054
Variable Interest Entity, Primary Beneficiary [Member]
Allowance for doubtful accounts receivable (in dollars)	9	9
Real Estate Investments, Other	32,875	32,875
Real Estate Investment Property, Accumulated Depreciation	318	318
Accounts Receivable, Net, Current	36	36
Other Assets	236	236
Secured Debt	21,170	21,170
Accounts Payable and Accrued Liabilities, Total	534	534
Other Liabilities	607	607
Cash and Cash Equivalents, at Carrying Value, Total	$ 670	$ 670