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Fresh Start Accounting - Narrative (Details) - USD ($) $ in Millions	Dec. 28, 2025	Sep. 29, 2025	Jun. 29, 2025
Reorganization, Chapter 11 [Line Items]
Reorganization value		$ 3,838.1
Bankruptcy claims, post petition liabilities and allowed claims		7,600.0
Reorganization value, enterprise value		$ 2,600.0
Reorganization value, present value of discounted cash flows of emerging entity, discount rate		20.10%
Intangible assets, net	$ 426.8	$ 445.7	$ 23.8
Technology-Based Intangible Assets \| Measurement Input, Discount Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.21
Trademarks and Trade Names \| Measurement Input, Royalty Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.005
Trademarks and Trade Names \| Measurement Input, Discount Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.205
Customer-Related Intangible Assets \| Measurement Input, Discount Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.225
Minimum
Reorganization, Chapter 11 [Line Items]
Reorganization value, enterprise value		$ 2,350.0
Incremental borrowing rate		0.099
Minimum \| Technology-Based Intangible Assets \| Measurement Input, Royalty Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.05
Minimum \| Customer-Related Intangible Assets \| Measurement Input, Attrition Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.10
Maximum
Reorganization, Chapter 11 [Line Items]
Reorganization value, enterprise value		$ 2,850.0
Incremental borrowing rate		0.139
Maximum \| Technology-Based Intangible Assets \| Measurement Input, Royalty Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.15
Maximum \| Customer-Related Intangible Assets \| Measurement Input, Attrition Rate
Reorganization, Chapter 11 [Line Items]
Intangible assets (excluding goodwill), measurement input		0.175