NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP (Details) (Operating Partnership, USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Operating Partnership
Noncontrolling interest in operating partnership
Ownership interest held by entity (as a percent)	96.70%
Noncontrolling interest in operating partnership (as a percent)	3.30%
Common OP units outstanding (in shares)	2,755,650
Period used as a denomination to determine the average closing price of common stock	10 days
Common OP units conversion basis	one-for-one basis
Ten day average closing stock price (in dollars per share)	$ 38.82
Consideration to be paid on redemption of common OP units	$ 106,974