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Supplemental Financial Statement Information - (Notes) | 9 Months Ended
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Sep. 29, 2024
Other Income and Expenses [Abstract] |
Supplemental Financial Statement Information | Supplemental Financial Statement Information Other income (expense), net for the quarters and year-to-date periods ended September 29, 2024 and October 1, 2023 was as follows:
(in millions) | Quarter ended |  | Year-to-date period ended
| September 29, 2024 |  | October 1, 2023 |  | September 29, 2024 |  | October 1, 2023
Rent and royalty income | $ | 0.7 |  |  | $ | 0.7 |  |  | $ | 2.3 |  |  | $ | 2.0 |
Gains from disposal of property, plant and equipment, net | 3.7 |  |  | — |  |  | 3.7 |  |  | 0.3 |
Net equity loss on joint ventures (See Note 6) | (0.2) |  |  | (0.7) |  |  | (1.0) |  |  | (1.0) |
Other | $ | 0.2 |  |  | $ | — |  |  | $ | 0.2 |  |  | $ | — |
Total other income, net | $ | 4.4 |  |  | $ | — |  |  | $ | 5.2 |  |  | $ | 1.3 |
Gains from disposal of property, plant and equipment, net for the quarter and year-to-date period ended September 29, 2024 include a $3.7 million gain on the sale of certain oil and gas rights. These cash gains are reported as an investing activity on the consolidated statement of cash flow for the year-to-date period ended September 29, 2024. Restructuring Restructuring charges were $0.5 million for the quarter ended September 29, 2024 and represent severance for the involuntary reduction of several domestic employees. Restructuring charges were a credit of $1.2 million for the year-to-date period ended September 29, 2024, primarily for a reduction in severance-related reserves for approximately 80 employees based on revised workforce reduction estimates, which includes the ongoing restructuring of the Company’s European operations. Restructuring charges for the third quarter ended October 1, 2023 were a credit of $0.5 million for a reduction in severance-related reserves related to approximately 10 employees based on revised workforce reduction estimates. Restructuring charges for the year-to-date period ended October 1, 2023 were a charge of $2.2 million and represent severance for the involuntary reduction of approximately 40 employees across the Company’s domestic operations, partially offset by the credit in the third quarter 2023 discussed above. These amounts are presented as restructuring charges (credits) in the consolidated statements of operations and are excluded from segment EBITDA. Restructuring reserves for severance cost activity is as follows:
| Severance and Employee
| Benefit Costs
Balance at December 31, 2023 | $ | 15.2 |
Adjustments | (1.2) |
Payments | (5.2) |
Balance at September 29, 2024 | $ | 8.8 |
The $8.8 million restructuring reserve balance at September 29, 2024 is recorded in other current liabilities on the consolidated balance sheet. Supplier Financing The Company participates in supplier financing programs with two financial institutions to offer its suppliers the option for access to payment in advance of an invoice due date. Under such programs, these financial institutions provide early payment to suppliers at their request for invoices that ATI has confirmed as valid at a pre-determined discount rate commensurate with the creditworthiness of ATI. As of September 29, 2024 and December 31, 2023, the Company had $58.4 million and $15.6 million, respectively, reported in accounts payable on the consolidated balance sheets under such programs.

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- Definition The entire disclosures of supplemental information, including descriptions and amounts, related to the balance sheet, income statement, and/or cash flow statement. + References No definition available. + Details
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