Risks and Fair Value - Concentration of Credit Risk (Details)	12 Months Ended
	Dec. 31, 2024 customer item	Dec. 31, 2023 customer	Dec. 31, 2022 customer
Concentration risk
Number Of financial institutions | item	2
Total revenue | Customer
Concentration risk
Number of major customers	3	3	3
Total revenue | Customer | Customer one
Concentration risk
Concentration risk	44.00%	49.00%	44.00%
Total revenue | Customer | Customer two
Concentration risk
Concentration risk	23.00%	25.00%	25.00%
Total revenue | Customer | Customer three
Concentration risk
Concentration risk	10.00%	11.00%	17.00%
Accounts receivable | Customer
Concentration risk
Number of major customers	3	3
Accounts receivable | Customer | Customer one
Concentration risk
Concentration risk	46.00%	50.00%
Accounts receivable | Customer | Customer two
Concentration risk
Concentration risk	28.00%	28.00%
Accounts receivable | Customer | Customer three
Concentration risk
Concentration risk	8.00%	11.00%