Fair Value Measurements (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Oct. 31, 2009	Oct. 08, 2009
Fair Value Measurements (Textual) [Abstract]
Series A preferred stock, par value	$ 0.01
Temporary equity, shares issued	9,336,905			9,336,905
Preferred Stock at Fair Value	$ 49.9		$ 47.9
Preferred stock total amount to be paid	48.6
Liquidation preference	$ 5.21
Contributed loan	48.6
Change of control aggregate cash payments, per share	$ 12.00
Estimated fair value of long term debt and Preferred Stock	1,246.6	1,240.6
Carrying value of debt, including current portion of debt, and preferred stock	$ 1,218.8	$ 1,221.8