Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Rental income	$ 128,988	$ 101,742	$ 80,678
Interest income	5,792	1,428	3,547
Total revenues	134,780	103,170	84,225
Expenses:
Depreciation and amortization	33,281	30,263	26,591
Interest	40,460	34,335	30,319
General and administrative	16,423	16,104	14,473
Impairment	0	2,481	0
Total expenses	90,164	83,183	71,383
Other income (expense):
Loss on extinguishment of debt	(10,101)	(2,670)	0
Other income	(800)	2,196	0
Total other income (expense)	(10,901)	(474)	0
Net income	33,715	19,513	12,842
Preferred stock dividends	7,966	0	0
Net income attributable to common stockholders	$ 25,749	$ 19,513	$ 12,842
Net income per common share, basic	$ 0.69	$ 0.53	$ 0.43
Net income per common share, diluted	$ 0.68	$ 0.52	$ 0.43
Weighted-average number of common shares outstanding, basic	37,514,637	37,061,111	30,109,417
Weighted-average number of common shares outstanding, diluted	38,071,926	37,321,517	30,171,225