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
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Income Taxes Disclosure [Line Items]      
Net deferred tax assets $ 11,753   $ 12,093
Net deferred tax asset 11,846   12,206
Net deferred tax liabilities relating to non-controlling interests 35    
Current tax expense 614 $ 1,161  
Corporate tax expense 182    
Deferred tax expense 409 130  
Provision for income taxes $ 1,023 1,291  
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 $ 163 228  
Deferred tax expense (7) (16)  
Provision for income taxes 156 $ 212  
Silvercrest L.P      
Income Taxes Disclosure [Line Items]      
Deferred tax asset 5    
Net deferred tax liability     20
Corporate tax expense 431    
Silvercrest Financial Services Inc      
Income Taxes Disclosure [Line Items]      
Net deferred tax liability 88   $ 93
Corporate tax expense $ 1