EARNINGS PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Income from continuing operations	$ 9,341	$ 28,564	$ 11,365	$ 21,595	$ 7,576	$ 8,893	$ 7,967	$ 9,590	$ 70,865	$ 34,026	$ 23,619
Less: net income attributable to participating securities									1,152	581	458
Income from continuing operations net of income									$ 69,713	$ 33,445	$ 23,161
Denominator:
Weighted average shares for basic earnings per share									59,402,000	54,919,000	45,854,000
Effect of dilutive securities:
Employee share options									24,000	38,000	40,000
Denominator for diluted earnings per share									59,426,000	54,957,000	45,894,000
Basic earnings per Common Share from continuing operations attributable to Common Shareholders (in dollars per share)	$ 0.13	$ 0.47	$ 0.19	$ 0.38	$ 0.14	$ 0.16	$ 0.14	$ 0.18	$ 1.18	$ 0.61	$ 0.51
Diluted earnings per Common Share from continuing operations attributable to Common Shareholders (in dollars per share)	$ 0.15	$ 0.47	$ 0.19	$ 0.38	$ 0.14	$ 0.16	$ 0.14	$ 0.18	$ 1.18	$ 0.61	$ 0.51
Common Stock [Member]
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount									25,067	25,067	25,067
Operating Partnership, as General Partner or Managing Member [Member]
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Series A Preferred OP Units (in shares)	2,988,277				1,457,467				2,988,277	1,457,467
Operating Partnership, as General Partner or Managing Member [Member] | Series A Preferred Stock [Member]
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Series A Preferred OP Units (in shares)	188				188				188	188	188