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v3.19.3

Related Party Transactions (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Mar. 25, 2019 | Sep. 28, 2019 | Sep. 29, 2018 | Sep. 28, 2019 | Sep. 29, 2018 | Dec. 29, 2018
Related Party Transaction [Line Items] |  |  |  |  |  |
Cost method investments |  | $ 1.2 |  | $ 1.2 |  |
Powersem |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Revenue from related parties |  | 0.2 | $ 0.2 | 0.4 | $ 0.6 |
Purchase from related party |  | 0.8 | 1.3 | 2.4 | 3.4 |
Receivable from related parties |  | 0.1 |  | 0.1 |  | $ 0.1
Payables to related parties |  | 0.1 |  | 0.1 |  | 0.2
EB Tech |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Payables to related parties |  | 0.1 |  | 0.1 |  | 0.1
Amount of transaction |  | 0.1 | 0.1 | 0.3 | 0.3 |
ATEC |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Payables to related parties |  | 0.2 |  | 0.2 |  | $ 0.5
Amount of transaction |  | $ 1.7 | $ 2.5 | $ 5.5 | $ 7.7 |
MWT |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Loss on disposal | $ 2.6 |  |  |  |  |
Powersem |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage |  | 45.00% |  | 45.00% |  |
EB Tech |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage |  | 19.00% |  | 19.00% |  |
ATEC |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage |  | 24.00% |  | 24.00% |  |

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