Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.10.0.1
Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Related Party Transaction [Line Items]          
Total revenue $ 24,932 $ 22,845 $ 73,840 $ 66,887  
Due from Silvercrest Funds 2,763   2,763   $ 1,094
Management and Advisory Fees          
Related Party Transaction [Line Items]          
Total revenue 23,841 21,774 70,683 63,900  
Affiliated Entity          
Related Party Transaction [Line Items]          
Due from Silvercrest Funds 2,763   2,763   1,094
Receivable from partners 58   58   $ 6
Affiliated Entity | Management Fees          
Related Party Transaction [Line Items]          
Total revenue 1,638 1,554 4,883 4,503  
Affiliated Entity | Management and Advisory Fees          
Related Party Transaction [Line Items]          
Total revenue $ 301 $ 264 $ 885 $ 726  
Affiliated Entity | Minimum          
Related Party Transaction [Line Items]          
Management and advisory fees percentage     0.00%    
Percentage of performance fees     0.00%    
Affiliated Entity | Maximum          
Related Party Transaction [Line Items]          
Management and advisory fees percentage     1.75%    
Percentage of performance fees     10.00%