CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Total Stockholders' Equity	Preferred Stock	Common Shares	Additional Paid-in Capital	Distributions in Excess of Net Income	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Balance at Dec. 31, 2010	$ 654,465	$ 232,239		$ 194	$ 239,453	$ (7,460)	$ 52	$ 422,226
Balance (in shares) at Dec. 31, 2010				19,644,042
Increase (Decrease) in Stockholders' Equity
Redemption of noncontrolling interests		13,768		9	13,759			(13,768)
Redemption of noncontrolling interests (in shares)				889,610
Issuance of restricted stock awards, net of forfeitures (in shares)				212,180
Exercise of stock options	31	31			31
Exercise of stock options (in shares)				1,962
Offering costs	(17)	(17)			(17)
Amortization of deferred compensation	2,958	2,958		1	2,957
Dividends and distributions	(26,278)	(11,474)				(11,474)		(14,804)
Net income (loss)	(10,779)	(4,611)				(4,611)		(6,168)
Change in fair value on derivative contracts	(366)	(163)					(163)	(203)
Reclassification of other comprehensive income to interest expense	173	77					77	96
Balance at Dec. 31, 2011	620,187	232,808		204	256,183	(23,545)	(34)	387,379
Balance (in shares) at Dec. 31, 2011				20,747,794
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock awards, net of forfeitures (in shares)				357,009
Exercise of stock options	1,564	1,564		1	1,563
Exercise of stock options (in shares)				97,870
Issuance of Series A Preferred Stock	110,615	110,615	115,000		(4,385)
Amortization of deferred compensation	5,650	5,650		2	5,648
Dividends accumulated on preferred stock	(440)	(440)				(440)
Dividends and distributions	(37,592)	(17,050)				(17,050)		(20,542)
Net income (loss)	10,716	5,048				5,048		5,668
Change in fair value on derivative contracts	(72)	(31)					(31)	(41)
Reclassification of other comprehensive income to interest expense	145	65					65	80
Balance at Dec. 31, 2012	710,773	338,229	115,000	207	259,009	(35,987)		372,544
Balance (in shares) at Dec. 31, 2012				21,202,673
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock awards, net of forfeitures	1	1		1
Issuance of restricted stock awards, net of forfeitures (in shares)				129,698
Exercise of stock options	925	925		1	924
Exercise of stock options (in shares)				54,781
Offering costs	(27)	(27)			(27)
Amortization of deferred compensation	7,559	7,559			7,559
Dividends declared on preferred stock	(8,338)	(8,338)				(8,338)
Dividends and distributions	(54,198)	(24,780)				(24,780)		(29,418)
Net income (loss)	31,612	18,841				18,841		12,771
Balance at Dec. 31, 2013	$ 688,307	$ 332,410	$ 115,000	$ 209	$ 267,465	$ (50,264)		$ 355,897
Balance (in shares) at Dec. 31, 2013				21,387,152