CONSOLIDATED STATEMENTS OF EQUITY (USD $)	Common Stock	Preferred shares	Additional Paid-in Capital	Distributions In Excess of Earnings	Treasury Shares	Noncontrolling Interests	Total
Balance at Dec. 31, 2012	$ 220,000	$ 650,000	$ 1,772,789,000	$ (310,384,000)		$ 2,798,000	$ 1,466,073,000
Balance (in shares) at Dec. 31, 2012	4,400,000	65,028,571
Increase (Decrease) in Stockholders' Equity
Contributions			32,000				32,000
Distributions to noncontrolling interests						(150,000)
Distributions				(83,035,000)			(83,185,000)
Net income				12,286,000		103,000	12,389,000
Balance at Sep. 30, 2013	220,000	650,000	1,772,821,000	(381,133,000)		2,751,000	1,395,309,000
Balance (in shares) at Sep. 30, 2013	4,400,000	65,028,571
Balance at Dec. 31, 2013	220,000	650,000	1,772,821,000	(399,953,000)		2,745,000	1,376,483,000
Balance (in shares) at Dec. 31, 2013	4,400,000	65,028,571
Increase (Decrease) in Stockholders' Equity
Contributions from noncontrolling interests						10,000	10,000
Distributions to noncontrolling interests						(148,000)	(148,000)
Reverse acquisition capital transaction	111,000		49,400,000		(4,901,000)		44,610,000
Reverse acquisition capital transaction (in shares)	2,119,244
Distributions				(16,100,000)			(16,100,000)
Conversion of preferred stock to common stock	910,000	(650,000)	(260,000)
Conversion of preferred stock to common stock (in shares)	91,039,999	(65,028,571)
Change in par value	(1,143,000)		1,143,000
Exercise of stock options			201,000				201,000
Exercise of stock options (in shares)	14,500
Stock based compensation expense			726,000				726,000
Stock based compensation expense (in shares)	8,000
Retirement of fractional shares			(3,000)				(3,000)
Retirement of fractional shares (in shares)	(145)
Common dividends ($0.4875 per share)				(43,017,000)			(43,017,000)
Preferred dividends ($0.0705 per share)				(4,585,000)			(4,585,000)
Net income				23,903,000		108,000	24,011,000
Balance at Sep. 30, 2014	$ 98,000		$ 1,824,028,000	$ (439,752,000)	$ (4,901,000)	$ 2,715,000	$ 1,382,188,000
Balance (in shares) at Sep. 30, 2014	97,581,598