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Related Party Transactions (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2023 | Dec. 02, 2021 | Sep. 30, 2018 | Dec. 24, 2021 | Dec. 25, 2020 | Dec. 24, 2021 | Dec. 25, 2020 | Mar. 26, 2021 | Jun. 30, 2018 | May 31, 2018
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  | $ 186,629,000 | $ 164,449,000 | $ 568,381,000 | $ 416,099,000 |  |  |
Trade and other accounts receivable due from related party |  |  |  | 28,305,000 |  | 28,305,000 |  | $ 23,832,000 |  |
Amounts due to related party |  |  |  | 4,051,000 |  | 4,051,000 |  | 2,353,000 |  |
Rent expense |  |  |  | 1,454,000 | 1,172,000 | 4,226,000 | 3,477,000 |  |  |
Related Party Revenue |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  | 39,461,000 | 26,439,000 | 112,079,000 | 72,570,000 |  |  |
Sanken |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Trade and other accounts receivable due from related party |  |  |  | 28,251,000 |  | 28,251,000 |  | 21,595,000 |  |
Other accounts receivable from related party |  |  |  | 54,000 |  | $ 54,000 |  | 198,000 |  |
Option to terminate, period of notice |  |  |  |  |  | 6 months |  |  |  |
Rent expense |  |  |  | 56,000 | 59,000 | $ 166,000 | 173,000 |  |  |
Sanken | Related Party Revenue |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  | 39,461,000 | 26,439,000 | 112,079,000 | 72,570,000 |  |  |
PSL |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Amounts due to related party |  |  |  | 4,051,000 |  | 4,051,000 |  | 1,739,000 |  |
Purchases from related party |  |  |  | 11,837,000 | 11,558,000 | 38,346,000 | 33,448,000 |  |  |
PSL | Loans Payable | Initial PSL Loan |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Face amount |  | $ 7,500,000 |  |  |  |  |  |  |  |
Stated interest rate |  | 1.26% |  |  |  |  |  |  |  |
Term |  | 4 years |  |  |  |  |  |  |  |
PSL | Loans Payable | Secondary PSL Loan | Forecast |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Face amount | $ 7,500,000 |  |  |  |  |  |  |  |  |
Stated interest rate | 1.26% |  |  |  |  |  |  |  |  |
Term | 4 years |  |  |  |  |  |  |  |  |
PSL | IC Technology Development Agreement |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Fees received |  |  |  | 0 | 300,000 | 0 | 900,000 |  |  |
Fees paid |  |  |  | 0 | 300,000 | 0 | 900,000 |  |  |
PSL | Discrete Technology Development Agreement |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Amounts due to related party |  |  |  |  |  |  |  | 614,000 |  |
PSL | Price Support Payment |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Purchases from related party |  |  |  |  | 1,500,000 |  | 5,000,000 |  |  |
Sanken Electric Europe Ltd. |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Trade and other accounts receivable due from related party |  |  |  | 0 |  | 0 |  | $ 1,272,000 |  |
Director |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Fees paid |  |  |  | $ 69,000 | $ 82,000 | $ 191,000 | $ 262,000 |  |  |
Monthly fee payable |  |  |  |  |  |  |  |  | $ 19,000 | $ 30,000
Signing fee |  |  | $ 54,000 |  |  |  |  |  |  |
Severance payment if terminated |  |  | $ 180,000 |  |  |  |  |  |  |
Accelerated vesting, acceleration period |  |  | 6 months |  |  |  |  |  |  |
Director | Common Class L |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Shares granted (in shares) |  |  | 12,000,000 |  |  |  |  |  |  |

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