Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Common stock shares outstanding	46,691	37,663
Treasury Stock	72	72
Property and Equipment, Net ($349,433 and $258,334 not subject to amortization at 2012 and 2011, respectively)	$ 349,433	$ 258,334
[SeriesBPreferredStockMember]
Preferred stock liquidation preference	3,588	3,430
[SeriesCPreferredStockMember]
Preferred stock liquidation preference	$ 37,000	$ 37,000