Annual report pursuant to section 13 and 15(d)

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

v2.4.0.8
Defined Contribution and Deferred Compensation Plans - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Defined Contribution Plan Disclosure [Line Items]      
Silvercrest matching contributions towards benefit of employees $ 60 $ 63 $ 71
Maximum
     
Defined Contribution Plan Disclosure [Line Items]      
Silvercrest matching contribution percentage 4.00%