Quarterly report pursuant to Section 13 or 15(d)

Equity - Class A Common Stock (Detail)

v3.22.2.2
Equity - Class A Common Stock (Detail) - Class A Common Stock - shares
 1 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Aug. 31, 2022
Jun. 30, 2022
May 31, 2022
Mar. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Class Of Stock [Line Items]              
Common stock, shares outstanding 9,627,462         9,627,462 9,869,101
Issuance of Class A common stock upon conversion of Class B units to Class A common stock 740 770 7,549 31,922 2,889    
Purchase of shares of Class A common stock of Silvercrest Asset Management Group Inc., Shares (136,930) (148,579)       (318,592) (33,083)
Common stock conversion date 2022-09 2022-08 2022-06 2022-05 2022-03    
Purchase of shares of Class A common stock of Silvercrest Asset Management Group Inc., Transaction date 2022-09 2022-08