Quarterly report pursuant to Section 13 or 15(d)

Defined Contribution and Deferred Compensation Plans - Additional Information (Detail)

v3.19.2
Defined Contribution and Deferred Compensation Plans - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Defined Contribution Plan Disclosure [Line Items]        
Silvercrest matching contributions towards benefit of employees $ 22 $ 19 $ 44 $ 38
Defined contribution plan, plan name     401(k) savings plan  
Maximum        
Defined Contribution Plan Disclosure [Line Items]        
Silvercrest matching contribution percentage     4.00%