SUBSEQUENT EVENTS (Details) (USD $)	12 Months Ended			12 Months Ended
	Dec. 31, 2011 Non-recourse first mortgage loan issuance [Member] Percent	Dec. 31, 2011 Tampa distribution center acquisition [Member]	Jan. 31, 2012 Tampa distribution center acquisition [Member]	Dec. 31, 2011 Common stock issuance - Continous common equity program [Member]	Feb. 23, 2012 Common stock issuance - Continous common equity program [Member]
Subsequent Event [Line Items]
Subsequent event date	01-04-2012	01-31-2012		02-23-2012
Non-recourse first mortgage loan	$ 54,000,000
Fixed interest rate	4.09%
Debt issuance, terms description	10-year term and a 20-year amortization schedule
Loan securitization, description	properties containing 1.4 million square feet
Real estate properties (in square feet)		72,000
Acres of development land (in acres)		18
Purchase price			4,653,000
Plans for future development (in square feet)		270,000
Common shares issued and sold (in shares)				213,390
Average price (in dollars per share)				$ 46.8600
Common stock remaining to sell under the program (in shares)					1,199,633
Proceeds From Common Stock Issuance					$ 9,900,000