CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2012
CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) [Abstract]
Common dividends declared per share (in dollars per share)	$ 0.075
Preferred dividends declared per share (in dollars per share)	$ 0.500
Shares of restricted stock withheld to satisfy tax withholding obligations on vesting of restricted stock (in shares)	12,169
Distribution of shares of common stock from deferred compensation plan (in shares)	2,125
Issuance of operating partnership units	1,800,000