Quarterly report pursuant to Section 13 or 15(d)

Organization and Business - Additional Information (Detail)

v3.21.2
Organization and Business - Additional Information (Detail) - USD ($)
$ in Thousands
 9 Months Ended
Jun. 26, 2013
Sep. 30, 2021
Apr. 01, 2012
Oct. 03, 2008
Dec. 31, 2004
Mar. 11, 2004
Business And Organization [Line Items]            
Tax receivable agreement with limited partner, percentage of cash savings to be paid   85.00%        
Recognition of tax receivable agreement liability   $ 9,513        
Percentage of cash savings expected to be realized   15.00%        
Silvercrest Financial Services Inc            
Business And Organization [Line Items]            
Percentage of outstanding shares acquired           100.00%
Sam Alternative Solutions Inc            
Business And Organization [Line Items]            
Percentage of outstanding shares acquired         100.00%  
Marathon Capital Group, LLC            
Business And Organization [Line Items]            
Percentage of outstanding shares acquired       100.00%    
MW Commodity Advisors, LLC            
Business And Organization [Line Items]            
Percentage of outstanding shares acquired     100.00%      
Silvercrest L.P | Class A Common Stock            
Business And Organization [Line Items]            
Number of shares held by parent 9,653,214          
Percentage ownership in a consolidated subsidiary 66.80% 66.80%