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Significant Accounting Policies - Narrative (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Related Party Transaction [Line Items]          
Demand deposits $ 1,200,000   $ 1,200,000   $ 2,800,000
Money market funds 44,600,000   44,600,000   60,400,000
Accounts receivable 22,597,262   $ 22,597,262   17,329,034
Client performance period     5 years    
Revenue 35,554,280 $ 38,264,674 $ 102,895,420 $ 119,542,174  
Performance-based fees 1,200,000 $ 1,500,000 1,200,000 $ 1,500,000  
Related Party          
Related Party Transaction [Line Items]          
Accounts receivable $ 8,700,000   $ 8,700,000   $ 9,300,000