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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Statement of Comprehensive Income [Abstract] | ||||||||
| Cumulative translation adjustments, tax | $ 0 | $ 0 | $ 0.1 | |||||
| Prior service credit (cost) arising during period, tax | 3.2 | 1.7 | 0 | |||||
| Net gain (loss) arising during period, tax | (15.1) | (1.3) | (17.7) | |||||
| Curtailment and settlement loss (gain), tax | 0.2 | [1] | 0.6 | [1] | 0 | [1] | ||
| Amortization of prior service cost (credit) included in net periodic pension costs, tax | (0.1) | [1] | (0.1) | [1] | 0.1 | [1] | ||
| Amortization of net loss (gain) included in net periodic pension costs, tax | $ 0.8 | [1] | $ 1.0 | [1] | $ (0.2) | [1] | ||
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