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8. Other Income and Expenses (Tables) | 6 Months Ended
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Jun. 30, 2021
Other Income and Expenses [Abstract] |
Schedule of other income (expense), net | Other (income) expense, net includes the following components (in millions):
| Three Months Ended |  | Six Months Ended |
| June 30, |  | June 30, |
| 2021 |  | 2020 |  | 2021 |  | 2020 |
Interest and investment income | $ | (0.7) |  |  | $ | (10.0) |  |  | $ | (19.0) |  |  | $ | (12.8) |  |
Net realized gains on investments | — |  |  | (0.2) |  |  | (0.1) |  |  | (0.6) |  |
Other-than-temporary impairment loss on investment | — |  |  | 4.6 |  |  | 0.8 |  |  | 4.6 |  |
Gain on divestiture of a division | — |  |  | (11.7) |  |  | — |  |  | (11.7) |  |
Other expense | 0.8 |  |  | 0.1 |  |  | 1.0 |  |  | — |  |
Other (income) expense, net | $ | 0.1 |  |  | $ | (17.2) |  |  | $ | (17.3) |  |  | $ | (20.5) |  |

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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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