Emergence from Voluntary Reorganization under Chapter 11 - Schedule of Reorganization Items (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Sep. 29, 2025 |
Jun. 28, 2026 |
Jun. 29, 2025 |
Jun. 30, 2024 |
|
| Reorganizations [Abstract] | ||||
| Allowed claims adjustments | $ 475.7 | $ 0.0 | $ 0.0 | $ 0.0 |
| Success fees | 34.0 | 0.0 | 0.0 | 0.0 |
| Professional fees | 28.2 | 0.0 | 0.0 | 0.0 |
| Gain on settlement of liabilities subject to compromise | (3,751.8) | 0.0 | 0.0 | 0.0 |
| Write-off related to Predecessor directors’ and officers’ insurance policy | 3.6 | 0.0 | 0.0 | 0.0 |
| Cancellation of unvested Predecessor stock compensation awards | 61.5 | 0.0 | 0.0 | 0.0 |
| Fresh start valuation adjustments | 2,585.4 | 0.0 | 0.0 | 0.0 |
| Reorganization items, net | (563.4) | 0.0 | 0.0 | 0.0 |
| Cash payments for Reorganization items, net | $ 38.5 | $ 23.7 | $ 0.0 | $ 0.0 |