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v3.25.3

Geographic and Other Information - Additional Information (Detail) - Segments | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Segments |  |  | 1 |  |
Customer Concentration Risk [Member] | Net Sales [Member] | Taiwan [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage | 15.50% | 8.80% | 12.40% | 9.40% |
Customer Concentration Risk [Member] | Net Sales [Member] | Top Ten Customers [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage | 75.20% | 73.40% | 74.20% | 72.50% |
Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer One [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage | 32.60% | 24.30% | 31.60% | 25.50% |
Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer Two [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  |  | 10.10% |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 43.10% |  | 42.30%
Geographic Concentration Risk [Member] | Net Sales [Member] | Greater China (China and Hong Kong) [Member] | Power solutions business |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |
Concentration risk, percentage | 74.60% | 83.70% | 79.60% | 83.40% |

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