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Concentration of Credit Risk - Additional Information (Detail) - Customer Concentration Risk [Member] - Customer	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Concentration Risk [Line Items]
Number of customers	2	2	2	2
Revenue Benchmark [Member] | Two Customers [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Accounts Receivable [Member]
Concentration Risk [Line Items]
Number of customers			2		2
Accounts Receivable [Member] | Two Customers [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			100.00%		23.60%

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Number of customers.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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