| **Goodwill and Other Intangible Assets - Table 3 (Details) (USD $)In Millions, unless otherwise specified** | 12 Months Ended |
|-------------------------------------------------------------------------------------------------------------|-----------------|
||
| **Schedule of Amortization Expense, Intangible Assets**                                                     |            |   |   |
| Amortization expense                                                                                        | $ 13.4          | $ 15.2 | $ 12.9 |

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| - Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.
+ References
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