Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Land	$ 49,114	$ 42,493
Buildings and improvements	487,396	420,704
Construction in progress	4,983
Real estate properties, gross	541,493	463,197
Less accumulated depreciation	(146,698)	(135,543)
Real estate properties, net	394,795	327,654
Mortgage notes receivable, net	78,672	75,465
Investment in preferred stock, at cost	38,132	38,132
Cash and cash equivalents	15,886	2,664
Marketable securities	11,364	22,476
Accounts receivable, net	1,184	471
Straight-line rent receivable	8,706	4,928
Assets held for sale, net	29,381	36,853
Deferred costs and other assets	1,443	698
Total Assets	579,563	509,341
Liabilities and Stockholders' Equity
Borrowings under revolving credit facility	97,300	37,765
Real estate purchase liabilities	9,478	4,000
Accounts payable and accrued expenses	3,483	3,388
Dividends payable	24,144	16,752
Deferred income	1,673	1,461
Earnest money deposit		3,475
Total Liabilities	136,078	66,841
Commitments and Contingencies
Stockholders' Equity
Common stock, $.01 par value; 40,000,000 shares authorized; 27,709,611 and 27,689,392 shares issued and outstanding, respectively	278	277
Capital in excess of par value	465,678	462,392
Cumulative dividends in excess of net income	(29,652)	(35,499)
Unrealized gains on marketable securities	7,181	15,330
Total Stockholders' Equity	443,485	442,500
Total Liabilities and Stockholders' Equity	$ 579,563	$ 509,341