Summary of Significant Accounting Policies - Reconciliation of Earnings Attributable to Common Shares Outstanding for the Basic and Diluted EPS (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic
Income (loss) from continuing operations	$ 210	$ 1,050	$ (4,972)	$ 10,648
Loss attributable to non-controlling interest	1,980	653	3,369	1,473
Preferred dividend of Series D Preferred Shares	(2,786)	(2,786)	(5,573)	(5,573)
Income (loss) from continuing operations applicable to Common Shares	(693)	(1,181)	(7,368)	6,424
Income loss from discontinued operations	6,772	6,695	11,151	10,048
(Income) loss attributable to non-controlling interests from discontinued operations	0	(24)	54	(49)
Net income applicable to Common Shares for earnings per share purposes	6,079	5,490	3,837	16,423
Basic Weighted-Average Common Shares	35,824	33,037	35,820	33,032
Income (loss) from continuing operations	$ (0.02)	$ (0.03)	$ (0.20)	$ 0.20
Income from discontinued operations	$ 0.19	$ 0.20	$ 0.31	$ 0.30
Net income per Common Share - Basic	$ 0.17	$ 0.17	$ 0.11	$ 0.50
Diluted
Income (loss) from continuing operations	210	1,050	(4,972)	10,648
Loss attributable to non-controlling interest	1,980	653	3,369	1,473
Preferred dividend of Series D Preferred Shares	(2,786)	(2,786)	(5,573)	(5,573)
Income (loss) from continuing operations applicable to Common Shares	(693)	(1,181)	(7,368)	6,424
Income from discontinued operations	6,772	6,695	11,151	10,048
(Income) loss attributable to non-controlling interests from discontinued operations	0	(24)	54	(49)
Net income applicable to Common Shares for earnings per share purposes	6,079	5,490	3,837	16,423
Basic Weighted-Average Common Shares	35,824	33,037	35,820	33,032
Stock options	0	0	0	2
Diluted Weighted-Average Common Shares	35,824	33,037	35,820	33,041
Income (loss) from continuing operations	$ (0.02)	$ (0.03)	$ (0.20)	$ 0.20
Income from discontinued operations	$ 0.19	$ 0.20	$ 0.31	$ 0.30
Net income per Common Share - Diluted	$ 0.17	$ 0.17	$ 0.11	$ 0.50
Restricted Shares [Member]
Basic
Amount allocated to Restricted Shares	(97)	(98)	(192)	(124)
Diluted
Amount allocated to Restricted Shares	$ (97)	$ (98)	$ (192)	$ (124)
Restricted shares	0	0	0	7