EARNINGS PER SHARE AND UNIT AND SHAREHOLDERS' EQUITY AND CAPITAL (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
EARNINGS PER SHARE AND UNIT AND SHAREHOLDERS' EQUITY AND CAPITAL
Income (Loss) from continuing operations									$ 10,409	$ (13,276)	$ (13,400)
Noncontrolling interests in the Operating Partnership									(51)	513	694
Noncontrolling interest in subsidiaries									42	(1,918)	(2,810)
Distribution to preferred shareholders									(6,008)	(6,008)	(1,218)
Income (Loss) from continuing operations attributable to the Company's common shareholders									4,392	(20,689)	(16,734)
Total discontinued operations									31,585	16,904	15,847
Noncontrolling interests in the Operating Partnership									(537)	(406)	(729)
Total discontinued operations attributable to the Company's common shareholders									31,048	16,498	15,118
NET INCOME (LOSS) ATTRIBUTABLE TO THE COMPANY'S COMMON SHAREHOLDERS									$ 35,440	$ (4,191)	$ (1,616)
Weighted-average shares outstanding (in shares)									135,191,000	124,548,000	102,976,000
Share options and restricted share units (in shares)									2,551,000
Weighted-average diluted shares outstanding (in shares)									137,742,000	124,548,000	102,976,000
Earnings (loss) per common share
Continuing operations (in dollars per share)									$ 0.03	$ (0.17)	$ (0.16)
Discontinued operations (in dollars per share)									$ 0.23	$ 0.14	$ 0.14
Basic and diluted earnings (loss) per common share (in dollars per share)	$ 0.15	$ 0.11	$ 0.01	$ (0.01)	$ 0.00	$ 0.00	$ 0.01	$ (0.04)	$ 0.26	$ (0.03)	$ (0.02)
Preferred stock, cash dividends declared (in dollars per share)									$ 1.938	$ 1.938	$ 0.393
Potentially dilutive shares not included in the earnings per share calculation as their effect is antidilutive (in shares)										2,000,000	1,378,000
Potential dilutive securities included in the calculation of diluted earnings per share (in shares)									2,551,000
Common stock, cash dividends declared (in dollars per share)									$ 0.460	$ 0.350	$ 0.290
Outstanding units of noncontrolling interest in the Operating Partnership (in shares)	2,275,730				3,293,730				2,275,730	3,293,730	4,674,136
Common shares outstanding	139,328,366				131,794,547				139,328,366	131,794,547