Annual report [Section 13 and 15(d), not S-K Item 405]

Equity - Class A Common Stock (Detail)

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Equity - Class A Common Stock (Detail) - Class A Common Stock - shares
1 Months Ended
Dec. 31, 2024
Nov. 30, 2024
Oct. 31, 2024
Sep. 30, 2024
Aug. 31, 2024
Jun. 30, 2024
May 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Class Of Stock [Line Items]                  
Common stock, shares outstanding 9,376,280               9,478,997
Issuance of Class A common stock upon exchange of Class B units to Class A common stock 5,514 50,503   21,405 15,459 28,737 25,002 3,025  
Purchase of shares of Class A common stock of Silvercrest Asset Management Group Inc., Shares (71,683) (61,064) (50,400) (60,600) (22,077)        
Common stock conversion date 2024-12 2024-11   2024-09 2024-08 2024-06 2024-05 2024-03  
Purchase of shares of Class A common stock of Silvercrest Asset Management Group Inc., Transaction date 2024-12 2024-11 2024-10 2024-09          
Restricted Stock                  
Class Of Stock [Line Items]                  
Issuance of common stock upon vesting of restricted stock units         1,827   11,635    
Issuance of Class A common stock upon vesting of restricted stock units, Transaction date         2024-08   2024-05