|
Goodwill and Other Intangible Assets - From Aqcuisitions (Details) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning Balance | $ 240.0 | $ 231.4 |
| Goodwill, Ending Balance | $ 240.0 | $ 231.4 |