CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Revenues from rental properties	$ 99,286	$ 100,263	$ 78,227
Interest on notes and mortgages receivable	2,882	2,658	133
Total revenues	102,168	102,921	78,360
Operating expenses:
Rental property expenses	30,232	16,023	10,053
Impairment charges	6,328	15,904
Environmental expenses	774	5,597	5,371
General and administrative expenses	29,116	22,065	8,178
Allowance for deferred rent receivable		19,288
Depreciation and amortization expense	12,541	9,511	8,997
Total operating expenses	78,991	88,388	32,599
Operating income	23,177	14,533	45,761
Other income, net	562	16	156
Interest expense	(9,931)	(5,125)	(5,050)
Earnings from continuing operations	13,808	9,424	40,867
Discontinued operations:
Earnings (loss) from operating activities	(8,199)	2,084	9,128
Gains on dispositions of real estate	6,838	948	1,705
Earnings (loss) from discontinued operations	(1,361)	3,032	10,833
Net earnings	$ 12,447	$ 12,456	$ 51,700
Basic and diluted earnings per common share:
Earnings from continuing operations	$ 0.41	$ 0.28	$ 1.46
Earnings (loss) from discontinued operations	$ (0.04)	$ 0.09	$ 0.39
Net earnings	$ 0.37	$ 0.37	$ 1.84
Weighted average shares outstanding:
Basic	33,395	33,171	27,950
Stock options		1	3
Diluted	33,395	33,172	27,953