EARNINGS PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Common stock	Sep. 30, 2012 Operating Partnership, as General Partner or Managing Member	Dec. 31, 2011 Operating Partnership, as General Partner or Managing Member	Sep. 30, 2012 Operating Partnership, as General Partner or Managing Member Series A Preferred Stock	Dec. 31, 2011 Operating Partnership, as General Partner or Managing Member Series A Preferred Stock
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Series A Preferred OP Units (in shares)						384,376	279,748	188	188
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)					25,067
Numerator:
Income from continuing operations	$ 6,265	$ 3,769	$ 16,665	$ 16,057
Less: net income attributable to participating securities	127	164	336	122
Income from continuing operations net of income attributable to participating securities	6,138	3,605	16,329	15,935
Effect of dilutive securities:
Preferred OP Unit distributions	0	0	0	14
Numerator for diluted earnings per Common Share	$ 6,138	$ 3,605	$ 16,329	$ 15,949
Denominator
Weighted average shares for basic earnings per share (in shares)	46,338,000	40,340,000	44,447,000	40,330,000
Effect of dilutive securities:
Employee Restricted Share Units and share options (in shares)	435,000	289,000	424,000	267,000
Convertible Preferred OP Units (in shares)	0	0	0	25,000
Dilutive potential Common Shares (in shares)	435,000	289,000	424,000	292,000
Denominatior for diluted earnings per share (in shares)	46,773,000	40,629,000	44,871,000	40,622,000
Basic earnings per Common Share from continuing operations attributable to Common Shareholders	$ 0.13	$ 0.09	$ 0.37	$ 0.40
Diluted earnings per Common Share from continuing operations attributable to Common Shareholders	$ 0.13	$ 0.09	$ 0.37	$ 0.40