Goodwill Additional Data (Details)	6 Months Ended
	Jun. 30, 2011
Percentage difference between the book value and carrying value using the Fair Value of Goodwill Income Approach	10.00%
Percentage difference between the book value and carrying value using the Fair Value of Goodwill Market Approach	11.00%
Discount Rate Used In Weighted Average Cost of Capital Calculation	18.50%
Control Premium	25.00%