Consolidated Statements of Equity - USD ($) $ in Thousands	Common Stock	Preferred Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions In Excess of Earnings	Treasury Stock	Noncontrolling Interests	Total
Balance at Dec. 31, 2012	$ 220	$ 650	$ 1,772,789		$ (310,384)		$ 2,798	$ 1,466,073
Balance (in shares) at Dec. 31, 2012	4,400,000	65,028,571
Increase (Decrease) in Stockholders' Equity
Contributions			32					32
Distributions					(104,035)		(266)	(104,301)
Net income					14,466		213	14,679
Balance at Dec. 31, 2013	$ 220	$ 650	1,772,821		(399,953)		2,745	1,376,483
Balance (in shares) at Dec. 31, 2013	4,400,000	65,028,571
Increase (Decrease) in Stockholders' Equity
Distributions pre-merger					(16,100)			(16,100)
Contributions from noncontrolling interests							10	10
Distributions to noncontrolling interests							(264)	(264)
Redemption of class B shares of subsidiary REITS							(1,850)	(1,850)
Reverse acquisition capital transaction	$ 111		49,400			$ (4,901)		44,610
Reverse acquisition capital transaction (in shares)	2,119,244
Conversion of preferred stock to common stock	$ 910	$ (650)	(260)
Conversion of preferred stock to common stock (in shares)	91,039,999	(65,028,571)
Change in par value	$ (1,143)		1,143
Exercise of stock options			201					201
Exercised of stock options (in shares)	14,500
Stock based compensation expense			1,079					1,079
Stock based compensation expense (in shares)	8,000
Retirement of fractional shares			(3)					(3)
Retirement of fractional shares (in shares)	(145)
Common dividends					(64,363)			(64,363)
Preferred dividends					(4,585)			(4,585)
Net income					24,378		220	24,598
Balance at Dec. 31, 2014	$ 98		1,824,381		(460,623)	(4,901)	861	1,359,816
Balance (in shares) at Dec. 31, 2014	97,581,598
Increase (Decrease) in Stockholders' Equity
Contributions from noncontrolling interests							110	110
Distributions to noncontrolling interests							(45)	(45)
Stock based compensation expense			971					971
Stock based compensation expense (in shares)	8,000
Common dividends					(85,389)			(85,389)
Treasury stock retirement (107,265 shares)			(4,901)			$ 4,901
Other comprehensive income (loss)				$ (2,519)				(2,519)
Net income					24,392		11	24,403
Balance at Dec. 31, 2015	$ 98		$ 1,820,451	$ (2,519)	$ (521,620)		$ 937	$ 1,297,347
Balance (in shares) at Dec. 31, 2015	97,589,598