CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Unrealized gain from change in pension obligations, tax | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0 |
| Unrealized (loss) gain on cash flow hedges, tax | $ 0.4 | $ 0.0 | $ 0.9 | $ (0.8) |