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v3.25.2

Commitments and Contingencies (Details) $ in Millions |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 08, 2025 lawsuit | Jun. 28, 2020 endowedFacultyChair | Jun. 29, 2025 USD ($) | Jun. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Jun. 25, 2023 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss contingency, number of additional lawsuits | lawsuit | 2 |  |  |  |  |
Government assistance, award amount |  |  | $ 500.0 |  |  |
Government assistance, transaction duration |  | 13 years |  |  |  |
Duration of annual commitment fee payment of GDA |  | 6 years |  |  |  |
Number of endowed faculty chairs created | endowedFacultyChair |  | 2 |  |  |  |
Reduction in property, plant, and equipment |  |  | 500.0 |  |  |
Government assistance, cumulative amount received |  |  | $ 467.3 |  |  |
Government Assistance, Asset, Statement of Financial Position [Extensible Enumeration] |  |  | Cash and Cash Equivalent |  |  |
Grants receivable, current |  |  | $ 32.7 |  |  |
Purchase Commitment 2023 |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchase commitment, amount committed |  |  |  |  | $ 86.4 | $ 200.0
Current purchases under agreement |  |  | 20.0 | $ 36.7 |  |
Product purchases year one |  |  | 41.3 |  |  |
Product purchases year two |  |  | 38.0 |  |  |
Product purchases year three |  |  | 40.0 |  |  |
Product purchases year four |  |  | 42.0 |  |  |
Purchase Commitment |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Capacity reserve deposit |  |  | 60.0 |  |  |
Capacity reserve payment |  |  | 18.1 | 32.9 |  | $ 5.5
Purchase Commitment 2024 |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Current purchases under agreement |  |  | 26.4 | $ 19.2 |  |
Product purchases year one |  |  | 31.2 |  |  |
Product purchases year two |  |  | 9.6 |  |  |
Electricity for Siler City, North Carolina Facilities |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchase commitment, amount committed |  |  | $ 62.4 |  |  |
Purchase commitment, period |  |  | 5 years |  |  |
Electricity for Durham, North Carolina Facilities |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchase commitment, amount committed |  |  | $ 25.7 |  |  |
Purchase commitment, period |  |  | 8 years |  |  |
Minimum |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Annual cost of GDA |  |  | $ 2.2 |  |  |
Maximum |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Annual cost of GDA |  |  | $ 5.2 |  |  |

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