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	1 Months Ended	3 Months Ended						7 Months Ended	12 Months Ended
	Jul. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Jul. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Per Common Share data - Basic
Income (loss) from continuing operations								$ (2,572)	$ 15,716	$ 23,399
Loss attributable to non-controlling interest								3,764	4,251	762
Preferred dividend of Series D Preferred Shares								(6,502)	(11,146)	(9,285)
Amount allocated to Restricted Common Shares								(192)	(307)
Income (loss) from continuing operations applicable to Common Shares								(5,502)	8,514	14,876
Income from discontinued operations								11,235	8,772	985
(Income) loss attributable to non-controlling interest from discontinued operations								54	39	(515)
Net income attributable to Common Shares	1,939	6,079	(2,242)	(7,946)	8,835	5,490	10,943	5,787	17,325	15,346
Basic weighted-average Common Shares								35,821	33,743	33,062
(Loss) income from continuing operations	$ 0.05	$ 0.17	$ (0.06)	$ (0.22)	$ 0.27	$ 0.17	$ 0.33	$ (0.15)	$ 0.25	$ 0.45
Income from discontinued operations								$ 0.31	$ 0.26	$ 0.01
Net income per Common Share - basic								$ 0.16	$ 0.51	$ 0.46
Diluted
Income (loss) from continuing operations								(2,572)	15,716	23,399
Loss attributable to non-controlling interest								3,764	4,251	762
Preferred dividend of Series D Preferred Shares								(6,502)	(11,146)	(9,285)
Amount allocated to Restricted Common Shares								(192)	(307)
Income (loss) from continuing operations applicable to Common Shares								(5,502)	8,514	14,876
Income from discontinued operations								11,235	8,772	985
(Income) loss attributable to non-controlling interest from discontinued operations								54	39	(515)
Net income attributable to Common Shares	1,939	6,079	(2,242)	(7,946)	8,835	5,490	10,943	5,787	17,325	15,346
Basic weighted-average Common Shares								35,821	33,743	33,062
Stock options								0	0	0
Diluted weighted-average Common Shares								35,821	33,774	33,062
Income (loss) from continuing operations	$ 0.05	$ 0.17	$ (0.06)	$ (0.22)	$ 0.27	$ 0.17	$ 0.33	$ (0.15)	$ 0.25	$ 0.45
Income from discontinued operations								$ 0.31	$ 0.26	$ 0.01
Net income per Common Share - diluted								$ 0.16	$ 0.51	$ 0.46
Restricted Shares [Member]
Per Common Share data - Basic
Amount allocated to Restricted Common Shares								(192)	(307)
Diluted
Amount allocated to Restricted Common Shares								$ (192)	$ (307)
Restricted Shares									31