Schedule I - Condensed Financial Information of Parent Company (Parenthetical) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Nov. 04, 2011
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Discontinued Operation, Tax Effect of Discontinued Operation	$ 0	$ 0	$ 36,687
Accumulated Depreciation	$ 14,340	$ 12,628
Convertible preferred stock, stated value	$ 0	$ 0
Convertible preferred stock, shares authorized	10,000,000	10,000,000
Convertible preferred stock, shares issued	0	477,800
Convertible preferred stock, shares outstanding	0	477,800
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	79,653,624	86,673,174
Common stock, shares outstanding	79,653,624	86,673,174		7,019,550