Summary of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Segment
Jun. 30, 2011
Dec. 31, 2011
Summary of Significant Accounting Policies (Textual) [Abstract]          
Economic interest     13.80%    
Number of segments     1    
Investments in the Fund $ 0.8   $ 0.8   $ 0.7
Fees earned for advisory related services provided to the Fund and CIT investment vehicles $ 42.0 $ 43.6 $ 84.9 $ 82.6