Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Preferred Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions In Excess of Earnings	Treasury Stock	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2013		4,400,000	65,028,571
Balance at Dec. 31, 2013	$ 1,376,483	$ 220	$ 650	$ 1,772,821		$ (399,953)		$ 2,745
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 (in shares)		2,119,244
Reverse acquisition capital transaction	44,610	$ 111		49,400			$ (4,901)
Conversion of preferred stock to common stock (in shares)		91,039,999	(65,028,571)
Conversion of preferred stock to common stock		$ 910	$ (650)	(260)
Change in par value		$ (1,143)		1,143
Exercised of stock options (in shares)		14,500
Exercise of stock options	201			201
Stock based compensation expense (in shares)		8,000
Stock-based compensation expense	1,079			1,079
Share repurchases (in shares)		(145)
Share repurchases	(3)			(3)
Common dividends	(64,363)					(64,363)
Preferred dividends	(4,585)					(4,585)
Treasury stock retirement (107,265 shares)	0
Net income	24,598					24,378		220
Balance (in shares) at Dec. 31, 2014		97,581,598
Balance at Dec. 31, 2014	1,359,816	$ 98		1,824,381		(460,623)	(4,901)	861
Increase (Decrease) in Stockholders' Equity
Contributions from noncontrolling interests	110							110
Distributions to noncontrolling interests	(45)							(45)
Stock based compensation expense (in shares)		8,000
Stock-based compensation expense	971			971
Common dividends	(85,389)					(85,389)
Treasury stock retirement (107,265 shares)	(4,901)			(4,901)			$ 4,901
Other comprehensive income (loss)	(2,519)				$ (2,519)
Net income	24,403					24,392		11
Balance (in shares) at Dec. 31, 2015		97,589,598
Balance at Dec. 31, 2015	1,297,347	$ 98		1,820,451	(2,519)	(521,620)		937
Increase (Decrease) in Stockholders' Equity
Distributions to noncontrolling interests	(43)							(43)
Stock based compensation expense (in shares)		10,176
Stock-based compensation expense	164			164
Issuance of shares pursuant to employment agreements		76,423
Share repurchases (in shares)		(13,628,116)
Share repurchases	(290,134)	$ (14)		(254,547)		(35,573)
Common dividends	(77,316)					(77,316)
Issuance of Warrants	5			5
Preferred dividends	(9)					(9)
Treasury stock retirement (107,265 shares)	0
Other comprehensive income (loss)	2,010				2,010
Net income	34,565					34,547		18
Balance (in shares) at Dec. 31, 2016		84,048,081
Balance at Dec. 31, 2016	$ 966,589	$ 84		$ 1,566,073	$ (509)	$ (599,971)		$ 912