EQUITY (Details 2) $ in Thousands		9 Months Ended		12 Months Ended
	Jun. 30, 2014 USD ($)	Sep. 30, 2015 shares	Sep. 30, 2014 USD ($)	Dec. 31, 2014 shares	Mar. 31, 2014
Remaining non-controlling interest acquired			$ 8,232
Non-controlling Interest | Operating partnership
Number of shares of common stock issuable upon conversion of common units		1
Number of common units of operating partnership owned by unaffiliated third parties | shares		612,539		784,968
Percentage of limited partnership interest in operating partnership		1.00%		1.00%
Non-controlling Interest | Joint venture
Ownership interest in joint venture (as a percent)					81.00%
Ownership interest in joint venture by partners (as a percent)					19.00%
Remaining non-controlling interest acquired	$ 8,200