Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Defined Contribution and Deferred Compensation Plans - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Defined Contribution Plan Disclosure [Line Items]    
Silvercrest matching contributions towards benefit of employees $ 22 $ 19
Maximum    
Defined Contribution Plan Disclosure [Line Items]    
Silvercrest matching contribution percentage 4.00%