CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Rental income	$ 25,252	$ 24,511
Interest income from mortgage loans	4,093	1,059
Interest and other income	93	93
Total revenues	29,438	25,663
Expenses:
Interest expense	3,187	3,133
Depreciation and amortization	6,298	6,136
General and administrative expenses	2,949	3,418
Total expenses	12,434	12,687
Net income	17,004	12,976
Income allocated to participating securities	(103)	(98)
Income allocated to preferred stockholders	(818)	(818)
Net income available to common stockholders	$ 16,083	$ 12,060
Earnings per common share
Basic (in dollars per share)	$ 0.47	$ 0.40
Diluted (in dollars per share)	$ 0.46	$ 0.40
Weighted average shares used to calculate earnings per common share
Basic (in shares)	34,586	30,365
Diluted (in shares)	36,611	30,399
Dividends declared and paid per common share (in dollars per share)	$ 0.510	$ 0.465