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10. Other Income and Expenses | 12 Months Ended
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Dec. 31, 2016
Other Income and Expenses [Abstract] |
Other Income and Other Expense Disclosure | 10. OTHER INCOME AND EXPENSE, NET Other (income) expense, net includes the following components (in millions):
|  | Year Ended December 31,
|  | 2016 |  | 2015 |  | 2014
Interest and investment income |  | $ | (14.7 | ) |  | $ | (10.1 | ) |  | $ | (13.5 | )
Net realized gains on investments |  | (0.8 | ) |  | (1.6 | ) |  | — |
Other-than-temporary impairment losses on investments |  | 0.6 |  |  | 0.6 |  |  | 0.4 |
Miscellaneous other (income) expense items, net |  | — |  |  | — |  |  | 0.1 |
Other (income) expense, net |  | $ | (14.9 | ) |  | $ | (11.1 | ) |  | $ | (13.0 | )
Other-than-temporary impairment losses on investments were recorded in 2016, 2015 and 2014 on certain of our available-for-sale investments and a certain equity investment in light of the continuing declines in their market prices at that time.

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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=63488584&loc=d3e20235-122688 + Details
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