Silvercrest Asset Management Group LLC Quarterly report pursuant to sections 13 or 15(d)

Stockholders' Equity - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		0 Months Ended			1 Months Ended		3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Jul. 12, 2013 Class A Common Stock	Jul. 02, 2013 Class A Common Stock	Mar. 31, 2014 Class A Common Stock	Feb. 28, 2014 Class B Common Stock	Nov. 30, 2013 Class B Common Stock	Mar. 31, 2014 Class B Common Stock
Class Of Stock [Line Items]
Partnership distributions, amount	$ 1,349	$ 13,669
Amount distributed to existing partners	10,000
Distributions of partner incentive allocations of net income	14,181	12,104
Accrued partner incentive allocations	$ 4,114
Issuance of Class A shares in IPO, Shares			718,603	4,790,684		261,958		261,958
Conversion of Class B common stock to Class A common stock							2,013,677
Common stock repurchased and cancelled						16,530		16,530
Common stock, par value					$ 0.01	$ 14.50		$ 0.01