Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Additional Information (Detail)

v3.8.0.1
Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Related Party Transaction [Line Items]      
Equity income from investments $ 615 $ 304 $ 18
Performance fees and allocations 834 322 11
Due from Silvercrest Funds 1,094 2,876  
Affiliated Entity      
Related Party Transaction [Line Items]      
Income from management fees 6,049 6,188 7,503
Income from performance fees and allocations 613 303 13
Equity income from investments 613 303 2
Performance fees and allocations 0 0 11
Due from Silvercrest Funds 1,094 2,876  
Income from advisory fees 985 713 $ 525
Receivable from partners $ 6 $ 2  
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%