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Balance Sheet Details (Tables) | 12 Months Ended
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Dec. 29, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable | Receivables including amounts due under long-term contracts are summarized as follows (in millions):
| December 29, 2024 |  | December 31, 2023
Billed, current | $ | 118.5 |  |  | $ | 129.8 |
Unbilled, current | 206.4 |  |  | 200.5 |
Total current accounts receivable | 324.9 |  |  | 330.3 |
Allowance for doubtful accounts | (1.1) |  |  | (1.1) |
Total accounts receivable and unbilled receivables, net | $ | 323.8 |  |  | $ | 329.2 |
U.S. Government contract receivables where the Company is the prime contractor included in accounts receivable, net (in millions):
| December 29, 2024 |  | December 31, 2023
Billed | $ | 11.6 |  |  | $ | 21.0 |
Unbilled | 61.2 |  |  | 71.0 |
Total U.S. Government contract receivables | $ | 72.8 |  |  | $ | 92.0 |
Schedule of Inventory | Inventoried costs (in millions):
| December 29, 2024 |  | December 31, 2023
Raw materials | $ | 90.1 |  |  | $ | 78.0 |
Work in process | 67.7 |  |  | 72.9 |
Finished goods | 4.3 |  |  | 5.3 |
Total inventoried costs | $ | 162.1 |  |  | $ | 156.2 |
Schedule of Property, Plant and Equipment | Assets are depreciated predominately using the straight-line method, with the following lives:
| Years
Buildings and improvements | 15 – 39
Machinery and equipment | 3 – 20
Computer equipment and software | 1 – 10
Vehicles, furniture, and office equipment | 5
Leasehold improvements | Shorter of useful life or length of lease
Property, plant and equipment, net (in millions)
| December 29, 2024 |  | December 31, 2023
Finance lease right of use assets | $ | 71.0 |  |  | $ | 56.1 |
Land and buildings | 41.3 |  |  | 40.8 |
Computer equipment and software | 63.0 |  |  | 51.4 |
Machinery and equipment | 178.2 |  |  | 152.8 |
Furniture and office equipment | 8.6 |  |  | 8.2 |
Leasehold improvements | 30.8 |  |  | 24.0 |
Construction in progress | 81.8 |  |  | 69.7 |
Property and equipment | 474.7 |  |  | 403.0 |
Accumulated depreciation and amortization | (186.5) |  |  | (159.4) |
Total property and equipment, net | $ | 288.2 |  |  | $ | 243.6 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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