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Risks and Fair Value - Concentration of Credit Risk (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 item customer	Sep. 30, 2024 customer	Sep. 30, 2025 item customer	Sep. 30, 2024 customer	Dec. 31, 2024 customer
Concentration risk
Number Of financial institutions | item	3		3
Total revenue | Customer
Concentration risk
Number of major customers	3	3	3	3
Total revenue | Customer | Customer one
Concentration risk
Concentration risk	46.00%	41.00%	43.00%	45.00%
Total revenue | Customer | Customer two
Concentration risk
Concentration risk	23.00%	26.00%	25.00%	23.00%
Total revenue | Customer | Customer three
Concentration risk
Concentration risk	9.00%	9.00%	9.00%	11.00%
Accounts receivable | Customer
Concentration risk
Number of major customers			3		3
Accounts receivable | Customer | Customer one
Concentration risk
Concentration risk			45.00%		46.00%
Accounts receivable | Customer | Customer two
Concentration risk
Concentration risk			27.00%		28.00%
Accounts receivable | Customer | Customer three
Concentration risk
Concentration risk			10.00%		8.00%

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- Definition

The total number of accredited financial institutions where the company has cash and cash equivalents balances, in amounts that exceed federally insured limits.

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- Definition

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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