Related Party Transactions - Schedule of Amounts Recognized From Related Party Affiliates (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Related Party Transaction [Line Items]
Revenues	$ 72,846	$ 55,808
Expenses	61,763	70,868
Affiliated Entity
Related Party Transaction [Line Items]
Revenues	784	2,033
Expenses	3,467	3,985
Affiliated Entity \| Proprietary Funds
Related Party Transaction [Line Items]
Revenues	762	2,012
Affiliated Entity \| FRMO Corporation
Related Party Transaction [Line Items]
Revenues	8	9
Expenses	3,458	3,971
Affiliated Entity \| Consensus Mining & Seigniorage Corp
Related Party Transaction [Line Items]
Revenues	14	12
Affiliated Entity \| HM Tech
Related Party Transaction [Line Items]
Expenses	$ 9	$ 14

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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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details