Quarterly report pursuant to Section 13 or 15(d)

Professional Fees and Other Expenses - Additional Information (Detail)

v2.4.0.8
Professional Fees and Other Expenses - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Other Income and Expenses [Abstract]        
Professional fees and other expenses $ 6.0 $ 6.3 $ 18.3 $ 23.8
Advisory retainer fees 1.3 1.5 3.9 4.5
Minimum guaranteed retainer fees 1.0   1.0  
Liability Award (benefit) expense recognized (1.6) 1.0 (1.8) 2.3
Liability Award expense unrecognized $ 0.8   $ 0.8