Property, Plant and Equipment - Components of Company's Property, Plant and Equipment (Details) - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 163.6 | $ 176.1 |
| Less: Accumulated depreciation | (128.1) | (143.1) |
| Total | 35.5 | 33.0 |
| Land | ||
| Property Plant And Equipment [Line Items] | ||
| Property, plant and equipment, gross | 10.0 | 10.0 |
| Buildings | ||
| Property Plant And Equipment [Line Items] | ||
| Property, plant and equipment, gross | 44.4 | 44.7 |
| Machinery and Equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 109.2 | $ 121.4 |