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Investments - Summary of Market Value of Investments (Detail) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Investment Holdings [Line Items]
Total Investments	$ 160,603,484	$ 128,401,136
Securities held in Consolidated Funds
Investment Holdings [Line Items]
Fair value investments	52,638,472	33,233,307
Securities held in Consolidated Funds | Parent
Investment Holdings [Line Items]
Fair value investments	37,600,000	23,600,000
Securities held in Consolidated Funds | Redeemable Noncontrolling Interest
Investment Holdings [Line Items]
Fair value investments	15,000,000.0	9,600,000
Company sponsored investments
Investment Holdings [Line Items]
Fair value investments	$ 98,061,822	$ 95,167,829

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Sum of the carrying amounts as of the balance sheet date of all investments.

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