Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Held for investment fair value		$ 14,542
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	94,863,181	94,875,645
Common stock, shares outstanding	94,850,027	94,837,170
Series A Preferred Stock
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	4,000,000	4,000,000
Preferred stock, shares issued	2,000	2,000
Preferred stock, shares outstanding	2,000	2,000