CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total Stockholders' Equity	Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Distributions in Excess of Net Income	Retained Earnings	Noncontrolling Interests	Total
Balance at Dec. 31, 2014	$ 658,341	$ 115,000	$ 212	$ 275,038	$ (125)	$ (67,538)	$ 322,587	$ 335,754	$ 658,341
Balance (in shares) at Dec. 31, 2014			21,757,366
Increase (Decrease) in Stockholders' Equity
Issuance of stock awards, net of forfeitures (in shares)			244,882
Exercise of stock options	449		1	448			449
Exercise of stock options (in shares)			20,287
Share-based compensation	1,696		1	1,695			1,696
Dividends declared on preferred stock	(2,084)					(2,084)	(2,084)
Dividends and distributions	(19,884)					(9,232)	(9,232)	(10,652)
Net income	12,060					6,652	6,652	5,408	12,060
Other comprehensive loss	(981)				(449)		(449)	(532)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax									(328)
Unrealized gain (loss) on derivative contracts									(1,309)
Balance at Mar. 31, 2015	$ 649,597	$ 115,000	$ 214	$ 277,181	$ (574)	$ (72,202)	$ 319,619	$ 329,978	$ 649,597
Balance (in shares) at Mar. 31, 2015			22,022,535