Quarterly report pursuant to Section 13 or 15(d)

Equity - Additional Information (Detail)

v3.21.1
Equity - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Mar. 31, 2021
Jan. 31, 2021
Mar. 31, 2021
Mar. 31, 2020
Class Of Stock [Line Items]        
Partnership distributions, amount     $ 1,758 $ 2,226
Distributions of partner incentive allocations of net income     $ 27,619 $ 27,245
Class B Common Stock        
Class Of Stock [Line Items]        
Share conversion, Shares     (8,000) (176,000)
Issuance of Class B units   34,196 56,000  
Class B Common Stock | Restricted Stock        
Class Of Stock [Line Items]        
Issuance of Class B units   21,598    
Class B Common Stock | Resale And Registration Rights Agreement        
Class Of Stock [Line Items]        
Share conversion, Shares 7,605   7,605  
Class B Common Stock | Silvercrest L.P        
Class Of Stock [Line Items]        
Issuance of Class B units   34,196    
Silvercrest L.P        
Class Of Stock [Line Items]        
Accrued partner incentive allocations     $ 8,004 $ 7,377