Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Income Taxes Disclosure [Line Items]      
Net deferred tax assets $ 11,343,000   $ 11,305,000
Net deferred tax asset 11,398,000   11,397,000
Net deferred tax liabilities relating to non-controlling interests 18,000    
Current tax expense 1,269,000 $ 440,000  
Corporate tax expense 860,000    
Deferred tax expense (12,000) 2,306,000  
Provision for income taxes 1,257,000 2,746,000  
Income tax expense (benefit) for discrete items $ 0 1,096,000  
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 $ 137,000 150,000  
Deferred tax expense (13,000) 104,000  
Provision for income taxes 124,000 $ 254,000  
Silvercrest L.P      
Income Taxes Disclosure [Line Items]      
Net deferred tax liability 4,000   37,000
Corporate tax expense 408,000    
Silvercrest Financial Services Inc      
Income Taxes Disclosure [Line Items]      
Net deferred tax liability 51,000   $ 55,000
Corporate tax expense $ 1,000