Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Preferred Stock	Preferred Stock	Preferred Stock	Common Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Common Stock	Additional Paid-in Capital Preferred Stock	Cumulated Distributions in Excess of Net Income
Balance at Dec. 31, 2010	$ 177,533			$ 0		$ 251		$ 177,275			$ 7
Common stock, shares outstanding						36,891,712
Net income	12,842										12,842
Amortization of stock based compensation	4,600							4,600
Stock issuance, shares							11,830,640
Stock issuance		163,238					118		163,120
Common dividends	(31,640)										(31,640)
Preferred stock, shares outstanding				0
Balance at Dec. 31, 2011	326,573			0		369		344,995			(18,791)
Common stock, shares outstanding	37,099,202					37,099,209
Net income	19,513										19,513
Amortization of stock based compensation	8,817							8,817
Stock issuance, shares							207,497
Stock issuance		51					2		49
Common dividends	(49,466)										(49,466)
Preferred stock, shares outstanding	0			0
Balance at Dec. 31, 2012	305,488			0		371		353,861			(48,744)
Common stock, shares outstanding	38,788,745					38,788,745
Net income	33,715										33,715
Amortization of stock based compensation	8,707							8,707
Stock issuance, shares					5,750,000		1,689,536
Stock issuance		33,896	138,250		58		17		33,879	138,192
Preferred dividends											(7,966)
Common dividends	(51,926)										(51,926)
Preferred stock, shares outstanding	0			5,750,000
Balance at Dec. 31, 2013	$ 460,164			$ 58		$ 388		$ 534,639			$ (74,921)