|
Goodwill and Other Intangible Assets (Details) 3 (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2013
|
|---|---|
| Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] | |
| Future amortization expense, remainder of 2012 | $ 144.1 |
| Future amortization expense, 2013 | 178.9 |
| Future amortization expense, 2014 | 163.8 |
| Future amortization expense, 2015 | 142.5 |
| Future amortization expense, 2016 | 131.2 |
| Future amortization expense, after 2016 | $ 388.4 |