Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Income Taxes Disclosure [Line Items]          
Net deferred tax assets $ 11,290   $ 11,290   $ 11,305
Net deferred tax asset 11,324   11,324   11,397
Net deferred tax liabilities relating to non-controlling interests 12   12    
Current tax expense 1,508 $ 801 2,777 $ 1,241  
Corporate tax expense 1,032   1,891    
Deferred tax expense 86 (348) 74 1,958  
Provision for income taxes 1,594 453 2,851 3,199  
Income tax expense (benefit) for discrete items (759) (800) $ (759) 296  
Income tax settlement     The amount recognized is measured as the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement.    
Non-controlling Interest          
Income Taxes Disclosure [Line Items]          
Current tax expense 161 127 $ 297 277  
Deferred tax expense (7) (36) (19) 69  
Provision for income taxes 154 $ 91 278 $ 346  
Silvercrest L.P          
Income Taxes Disclosure [Line Items]          
Net deferred tax asset 12   12    
Net deferred tax liability         37
Corporate tax expense 477   886    
Silvercrest Financial Services Inc          
Income Taxes Disclosure [Line Items]          
Net deferred tax liability 46   46   $ 55
Corporate tax expense $ (1)   $ 0