Consolidated Statements of Stockholders' (Deficit) Equity Parenthetical (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Weighted Average Price Per Treasury Share Withheld For Payments Of Tax	$ 9.63	$ 12.41	$ 6.77
Merger [Member]
Weighted Average Price Per Treasury Share Withheld For Payments Of Tax			$ 4.55