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v3.19.3.a.u2

Related Party Transactions (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Mar. 25, 2019 | Dec. 28, 2019 | Dec. 29, 2018
Related Party Transaction [Line Items] |  |  |
Cost method investments |  | $ 0.4 | $ 7.9
Loss on disposal | $ 2.6 |  |
Powersem |  |  |
Related Party Transaction [Line Items] |  |  |
Sales to related party |  | 0.6 | 0.7
Purchase material/service from related party |  | 3.2 | 4.5
Account Receivable balance |  | 0.0 | 0.1
Account Payable balance |  | 0.2 | 0.2
EB Tech |  |  |
Related Party Transaction [Line Items] |  |  |
Sales to related party |  | 0.0 | 0.0
Purchase material/service from related party |  | 0.4 | 0.5
Account Receivable balance |  | 0.0 | 0.0
Account Payable balance |  | 0.0 | 0.1
ATEC |  |  |
Related Party Transaction [Line Items] |  |  |
Sales to related party |  | 0.0 | 0.0
Purchase material/service from related party |  | 7.9 | 9.9
Account Receivable balance |  | 0.0 | 0.0
Account Payable balance |  | $ 0.1 | $ 0.5
Powersem |  |  |
Related Party Transaction [Line Items] |  |  |
Ownership percentage |  | 45.00% |
EB Tech |  |  |
Related Party Transaction [Line Items] |  |  |
Ownership percentage |  | 19.00% |
ATEC |  |  |
Related Party Transaction [Line Items] |  |  |
Ownership percentage |  | 24.00% |

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