Condensed Statements of Comprehensive Income - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] | ||||
| Net income (loss) | $ 17.5 | $ 5.9 | $ (21.4) | $ 61.3 |
| Other comprehensive income, net of tax: | ||||
| Foreign currency translation adjustments, net | 4.6 | (1.7) | 9.3 | (2.8) |
| Unrealized gains (losses) on derivative contracts, net | 2.6 | (2.1) | 3.8 | (2.6) |
| Pension and postretirement liability adjustments, net | 3.1 | 0.0 | 3.1 | 0.0 |
| Amortization of prior service costs and actuarial losses, net | 2.3 | 4.9 | 9.6 | 15.3 |
| Total other comprehensive income, net of tax | 12.6 | 1.1 | 25.8 | 9.9 |
| Comprehensive income | $ 30.1 | $ 7.0 | $ 4.4 | $ 71.2 |