Quarterly report pursuant to Section 13 or 15(d)

Equity - Additional Information (Detail)

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Equity - Additional Information (Detail) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
May 31, 2022
Apr. 30, 2022
Mar. 31, 2022
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Jul. 29, 2021
Class Of Stock [Line Items]                    
Partnership distributions, amount         $ 3,524,000 $ 3,592,000 $ 6,209,000 $ 5,350,000    
Distributions of partner incentive allocations of net income         34,429,000 27,819,000        
Class B Common Stock | Restricted Stock                    
Class Of Stock [Line Items]                    
Issuance of common stock   50,081                
Class B Common Stock | Neosho                    
Class Of Stock [Line Items]                    
Issuance of common stock in connection with acquisition     1,224              
Class B Common Stock | Resale And Registration Rights Agreement                    
Class Of Stock [Line Items]                    
Share conversion, Shares 7,549 31,922   2,889            
Class A Common Stock                    
Class Of Stock [Line Items]                    
Treasury stock, purchased             33,083   33,083  
Treasury stock, aggregate price             $ 512,000   $ 512,000  
Class A Common Stock | Maximum                    
Class Of Stock [Line Items]                    
Stock repurchase program, authorized amount                   $ 15,000,000
Silvercrest L.P                    
Class Of Stock [Line Items]                    
Accrued partner incentive allocations         $ 8,323,000 $ 9,012,000 $ 16,950,000 $ 17,015,000