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Other Non-Operating Income, Net - Schedule of Other Non-Operating Income, Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2026 | Mar. 30, 2025 | Dec. 28, 2025 | Dec. 29, 2024
Schedule of Other Non-Operating Income, Net [Line Items] |  |  |  |  |  |  |  |  |
Gain on remeasurement of derivative liabilities | [1] | $ 26,608 |  | $ 15,127 |  |  |  |  |
Change in fair value of forward purchase agreement liabilities | [2] | (1,142) |  | 269 |  |  |  |  |
Change in fair value of SAFE Agreement with related party |  | (44) |  | (20) |  | $ (151) |  | $ 616 |
Change in fair value of FACT public, private placement and working capital warrants |  | 615 |  | (1,092) |  | 2,800 |  | 1,258 |
Change in fair value of Notes valued at fair value |  | (320) |  |  |  |  |  |  |
Change in fair value of Deferred Sunder Consideration with related party |  | 2,306 |  |  |  |  |  |  |
Change in fair value of Deferred Ambia Consideration |  | 2,943 |  |  |  |  |  |  |
Other, net |  | (205) | [3] | 292 | [3] | 1,279 | [4] | (221) | [4]
Total Other non-operating income, net |  | $ 30,761 | [5] | $ 14,576 | [5] | $ 9,347 | [6] | $ 7,932 | [6]
[1] | Includes a gain of $7.5 million and $3.7 million on the change in the fair value of derivative liabilities with related parties in the thirteen weeks ended March 29, 2026 and March 30, 2025, respectively. Refer to Note 9 – Borrowings and Derivative Liabilities for details.
[2] | Includes income of $0.1 million due to related parties for the thirteen week period ended March 30, 2025.
[3] | Includes $0.1 million income due to related parties in the thirteen week period ended March 30, 2025.
[4] | Includes non-cash income with related party of $0.1 million in the fiscal year ended December 28, 2025.
[5] | Includes the following related party transactions (in millions):
[6] | Includes the following related party transactions (in millions):

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