Consolidated Statement Of Changes In Shareholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statement Of Changes In Shareholders' Equity [Abstract]
Dividends per common share and LTIP unit outstanding	$ 0.70	$ 0.40	$ 1.80	$ 2.11
Placement fee	$ 1,852	$ 0	$ 1,852	$ 0