Accrued Liabilities - Components of Accrued Liabilities (Detail) - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Accrued Liabilities Current [Abstract] | ||
| Employee-related liabilities | $ 54.0 | $ 40.6 |
| Customer-related liabilities | 19.3 | 19.0 |
| Accrued interest payable | 6.2 | 0.0 |
| Restructuring liabilities | 3.7 | 3.6 |
| Accrued fixed assets | 4.1 | |
| Other | 17.5 | 8.1 |
| Total accrued liabilities | $ 100.7 | $ 75.4 |