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Significant Accounting Policies - Summary of Reclassifications Consolidated Statements of Cash Flows (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities
Net cash used in operating activities	$ 8,542	$ 22,390
Cash Flows from Investing Activities
Net cash used in investing activities	(23,070)	(30,453)
Reclassification of purchases of securities owned, at fair value	32,488	29,819
Reclassification of proceeds from the sale of securities owned, at fair value	$ 21,455	5,212
Reclassification Of Net Cash Flow From Securities Purchases And Sales [Member]
Cash Flows from Operating Activities
Reclassification of net cash flows from securities purchases and sales		24,607
Cash Flows from Investing Activities
Reclassification of purchases of securities owned, at fair value		(29,819)
Reclassification of proceeds from the sale of securities owned, at fair value		5,212
Previously Reported [Member]
Cash Flows from Operating Activities
Net cash used in operating activities		(2,217)
Cash Flows from Investing Activities
Net cash used in investing activities		(5,846)
As Corrected [Member]
Cash Flows from Operating Activities
Net cash used in operating activities		22,390
Cash Flows from Investing Activities
Net cash used in investing activities		$ (30,453)

X

- Definition

Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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