Variable interest entities - Income, Proceeds, Funding and Cash Balances (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Variable interest entities
Total revenues	$ 118,859	$ 44,295
Cash flows
Cash balance at period end	486,639		$ 469,930
VIE primary beneficiary
Variable interest entities
Total revenues	36,628	22,276
Cash flows
Proceeds	140,255	133,278
(Funding)	(11,590)	(76,853)
Cash balance at period end	$ 24,145	$ 17,960

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details

- 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.

+ References + Details