Quarterly report pursuant to sections 13 or 15(d)

Goodwill and Intangible Assets (Details Textual)

v2.4.0.6
Goodwill and Intangible Assets (Details Textual) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 30, 2011
Jun. 30, 2011
Sep. 30, 2012
Dec. 31, 2011
Goodwill and Intangible Assets (Textual) [Abstract]        
Accumulated impairment charges     $ 64.1 $ 64.1
Non-cash asset impairment charge $ 23.4 $ 44.2