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Other Income, Net (Tables) | 12 Months Ended
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Dec. 31, 2015
Other Income and Expenses [Abstract] |
Other Income (Expense), Net | Other (expense) income, net consisted of the following for each period presented (in millions of dollars):
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Interest income | $ | 0.4 |  |  | $ | 1.0 |  |  | $ | 0.4 |
Unrealized gain on financial derivatives 1 | — |  |  | 3.6 |  |  | 3.2 |
Realized gain on investments | 0.8 |  |  | 1.0 |  |  | 1.4 |
Distribution from third-party trust 2 | — |  |  | — |  |  | 0.6 |
All other, net 3 | (3.0 | ) |  | 1.1 |  |  | — |
Other (expense) income, net | $ | (1.8 | ) |  | $ | 6.7 |  |  | $ | 5.6 |
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1. | See Note 1 for a discussion of our accounting policy for such instruments.
2. | See Note 12 for discussion of the distribution.
3. | See Note 3 for a discussion of the loss we recognized on our repurchase of Senior Notes during the year ended December 31, 2015.

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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