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Supplemental Financial Statement Information - (Notes) | 9 Months Ended
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Sep. 30, 2019
Other Income and Expenses [Abstract] |
Supplemental Financial Statement Information | Supplemental Financial Statement Information Other income, net for the three and nine months ended September 30, 2019 and 2018 was as follows:
(in millions) | Three months ended September 30, |  | Nine months ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Rent and royalty income | $ | 1.4 |  |  | $ | 0.6 |  |  | $ | 2.8 |  |  | $ | 2.3 |
Gains from disposal of property, plant and equipment, net | 62.3 |  |  | 0.1 |  |  | 90.6 |  |  | 0.5 |
Net equity (loss) gain on joint ventures (See Note 6) | (2.4 | ) |  | 0.2 |  |  | (8.7 | ) |  | 2.5 |
Net gain (loss) from sales of businesses (See Note 5) | 5.8 |  |  | — |  |  | (1.9 | ) |  | — |
Gain on joint venture deconsolidation (See Note 6) | — |  |  | — |  |  | — |  |  | 15.9 |
Other | 0.1 |  |  | (0.1 | ) |  | 0.1 |  |  | 1.2 |
Total other income, net | $ | 67.2 |  |  | $ | 0.8 |  |  | $ | 82.9 |  |  | $ | 22.4 |
Gains from disposal of property, plant and equipment, net for the three and nine months ended September 30, 2019 include a $62.4 million and $91.7 million gain on the sale of certain oil and gas rights in Eddy County, NM, respectively. This cash gain is reported as an investing activity on the consolidated statement of cash flows for the nine months ended September 30, 2019 and is excluded from segment operating results. These oil and gas rights were initially acquired by the Company in 1972 along with land purchased by Teledyne, Inc., which later became part of ATI. The land was subsequently sold, with the Company retaining its underlying oil and gas rights.

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