Condensed Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues:
Rental income	$ 23,663	$ 17,561
Interest income	64	40
Total revenues	23,727	17,601
Expenses:
Depreciation and amortization	7,303	6,086
Interest	7,698	7,597
General and administrative	4,321	2,670
Total expenses	19,322	16,353
Net income	$ 4,405	$ 1,248
Net income per common share, basic	$ 0.12	$ 0.05
Net income per common share, diluted	$ 0.12	$ 0.05
Weighted-average number of common shares outstanding, basic	37,035,970	25,136,140
Weighted-average number of common shares outstanding, diluted	37,058,886	25,211,585
Dividends per common share	$ 0.33	$ 0