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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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