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INDEBTEDNESS - Summary of Debt Activity (Details) - USD ($) | 9 Months Ended | 10 Months Ended | 39 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 27, 2025 | Sep. 30, 2027 | Dec. 31, 2030 | Sep. 09, 2025 | Dec. 31, 2024
Debt |  |  |  |  |
Balance at the beginning of the period | $ 614,700,000 |  |  |  |
Borrowings | 1,258,600,000 |  |  |  |
Repayments | (1,372,100,000) |  |  |  |
Other | 400,000 |  |  |  |
Balance at the end of the period | 501,600,000 |  |  |  |
Less: short-term debt | 1,400,000 |  |  |  | $ 10,100,000
Less: current maturities of long-term debt | 400,000 |  |  |  | 27,600,000
Total long-term debt | 499,800,000 |  |  |  | 577,000,000.0
Trade receivables financing arrangement |  |  |  |  |
Debt |  |  |  |  |
Balance at the beginning of the period | 9,000,000.0 |  |  |  |
Borrowings | 280,000,000.0 |  |  |  |
Repayments | (289,000,000.0) |  |  |  |
Other | 0 |  |  |  |
Balance at the end of the period | 0.0 |  |  |  |
Maximum borrowing capacity under financing arrangement | 100,000,000.0 |  |  |  |
Debt instrument, unused borrowing capacity, amount | 86,100,000 |  |  |  |
Other indebtedness |  |  |  |  |
Debt |  |  |  |  |
Balance at the beginning of the period | 2,300,000 |  |  |  |
Borrowings | 600,000 |  |  |  |
Repayments | (500,000) |  |  |  |
Other | 100,000 |  |  |  |
Balance at the end of the period | 2,500,000 |  |  |  |
Purchase card programs | 1,400,000 |  |  |  | 1,100,000
Finance lease, liability | 1,100,000 |  |  |  | 1,200,000
Revolving loans | Term loan |  |  |  |  |
Debt |  |  |  |  |
Balance at the beginning of the period | 80,000,000.0 |  |  |  |
Borrowings | 478,000,000.0 |  |  |  |
Repayments | (558,000,000.0) |  |  |  |
Other | 0 |  |  |  |
Balance at the end of the period | 0 |  |  |  |
Senior Credit Facility | Current SPX Term Loan Facility |  |  |  |  |
Debt |  |  |  |  |
Balance at the beginning of the period | 523,400,000 |  |  |  |
Borrowings | 500,000,000.0 |  |  |  |
Repayments | (524,600,000) |  |  |  |
Other | 300,000 |  |  |  |
Balance at the end of the period | 499,100,000 |  |  |  |
Face amount of debt |  |  |  | $ 500,000,000.0 |
Unamortized debt issuance costs | $ 900,000 |  |  |  | $ 1,200,000
Senior Credit Facility | Current SPX Term Loan Facility | Forecast |  |  |  |  |
Debt |  |  |  |  |
Periodic payment (as a percent of principal) |  | 0.625% | 1.25% |  |

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