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Other (Expense) Income, Net | 6 Months Ended
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Jun. 30, 2016
Other Income and Expenses [Abstract] |
Other (Expense) Income, Net | Other (Expense) Income, Net Other (expense) income, net consisted of the following for each period presented (in millions of dollars):
| Quarter Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Interest income | $ | — |  |  | $ | — |  |  | $ | 0.1 |  |  | $ | 0.2 |
Realized gain on investments | 0.3 |  |  | 0.2 |  |  | 0.3 |  |  | 0.5 |
Loss on extinguishment of debt 1 | (11.1 | ) |  | — |  |  | (11.1 | ) |  | — |
All other, net | 0.1 |  |  | 0.2 |  |  | 0.3 |  |  | 0.1 |
Other (expense) income, net | $ | (10.7 | ) |  | $ | 0.4 |  |  | $ | (10.4 | ) |  | $ | 0.8 |
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1 | Represents the loss on extinguishment of our 8.25% Senior Notes during the quarter ended June 30, 2016, which includes an $8.2 million premium paid to redeem the notes and a $2.9 million write-off of unamortized debt issuance costs associated with the notes.

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3,6,7,9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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