CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Allowance for doubtful accounts receivable (in dollars)	$ 464	$ 121
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred Stock Dividend Rate Percentage	8.00%
Preferred stock, liquidation preference per share	$ 25.00	$ 25.00
Preferred stock, shares issued	2,300,000	2,300,000
Preferred stock, shares outstanding	2,300,000	2,300,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	64,429,542	38,558,048
Common stock, shares outstanding	64,429,542	38,558,048