Segment Reporting (Financial Information Relating to Operations Presented by Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	$ 79,303	$ 68,033	$ 233,478	$ 205,297
Straight line rent adjustment	1,131	521	3,075	2,008
Accretion of below market lease intangibles, net	3,020	1,807	9,526	5,745
Management and leasing services	499	483	1,803	1,590
Total revenue	83,953	70,844	247,882	214,640
Net operating income	53,763	45,217	158,830	137,625
Elimination of intersegment expenses	2,655	1,880	7,755	5,748
Investment income	1,586	1,515	4,615	3,175
Equity in income of unconsolidated joint ventures	469	4,426	129	4,694
Other (loss) income	(10)	101	124	257
Gain on bargain purchase				30,561
Gain on sale of real estate		959		5,565
Gain on extinguishment of debt			343	255
Rental property depreciation and amortization	20,738	18,147	65,442	57,620
General and administrative	10,227	13,090	32,414	38,406
Interest expense	18,092	17,017	53,304	51,957
Amortization of deferred financing fees	627	558	1,836	1,655
Impairment loss	2,445	18,490	6,393	18,635
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE TAX AND DISCONTINUED OPERATIONS	10,984	(10,393)	26,811	28,950
South Florida [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	22,967	21,057	68,954	65,284
Net operating income	15,176	13,572	46,118	42,300
North Florida [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	11,117	11,874	34,016	35,761
Net operating income	7,739	7,906	23,854	24,231
Southeast [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	14,088	13,942	42,144	41,542
Net operating income	10,059	9,569	29,880	28,944
Northeast [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	12,738	8,593	35,866	25,308
Net operating income	9,003	6,344	24,859	18,060
West Coast [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	17,617	11,899	50,446	35,275
Net operating income	11,505	7,572	33,164	23,158
Non-retail [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total segment revenues	776	668	2,052	2,127
Net operating income	$ 281	$ 254	$ 955	$ 932