Goodwill and Intangible Assets - Goodwill and Changes in Carrying Amount of Goodwill by Operating Segment (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2020
USD ($)
| |
| Goodwill [Roll Forward] | |
| Goodwill, Beginning Balance | $ 685.7 |
| Currency translation | (1.5) |
| Goodwill, Ending Balance | 684.2 |
| Specialty Engineered Materials | |
| Goodwill [Roll Forward] | |
| Goodwill, Beginning Balance | 236.3 |
| Currency translation | (1.0) |
| Goodwill, Ending Balance | 235.3 |
| Color, Additives and Inks | |
| Goodwill [Roll Forward] | |
| Goodwill, Beginning Balance | 447.8 |
| Currency translation | (0.5) |
| Goodwill, Ending Balance | 447.3 |
| PolyOne Distribution | |
| Goodwill [Roll Forward] | |
| Goodwill, Beginning Balance | 1.6 |
| Currency translation | 0.0 |
| Goodwill, Ending Balance | $ 1.6 |