Goodwill and Identifiable Intangible Assets - Identifiable Intangible Assets (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Identifiable intangible assets | |||
| Gross Carrying Amount | $ 429.7 | $ 331.2 | |
| Accumulated Amortization | 189.1 | 152.2 | |
| Net | 240.7 | 179.0 | |
| Total intangible assets, Gross Carrying Amount | 471.4 | 363.1 | |
| Total intangible assets, Net | 282.3 | 210.9 | |
| Intangible amortization expense | 39.7 | 30.4 | $ 27.0 |
| Trademark/trade name rights | |||
| Identifiable intangible assets | |||
| Indefinite lived intangible assets | 41.7 | 31.9 | |
| Customer relationships | |||
| Identifiable intangible assets | |||
| Gross Carrying Amount | 353.8 | 255.5 | |
| Accumulated Amortization | 155.5 | 125.4 | |
| Net | 198.3 | 130.1 | |
| Supplier agreements | |||
| Identifiable intangible assets | |||
| Gross Carrying Amount | 38.7 | 38.5 | |
| Accumulated Amortization | 13.3 | 10.7 | |
| Net | 25.4 | 27.8 | |
| Other | |||
| Identifiable intangible assets | |||
| Gross Carrying Amount | 37.2 | 37.2 | |
| Accumulated Amortization | 20.2 | 16.1 | |
| Net | $ 17.0 | $ 21.1 | |