Silvercrest Asset Management Group LLC Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Acquisitions - Additional Information (Detail)

Acquisitions - Additional Information (Detail) $ in Thousands					1 Months Ended		3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Aug. 01, 2015 USD ($)	Mar. 30, 2015 USD ($)	Nov. 01, 2014 USD ($)	Mar. 28, 2013 USD ($)	Dec. 31, 2013 USD ($)	Apr. 30, 2013 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) Installment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) Installment
Business Acquisition [Line Items]
Cash paid on date of acquisition																		$ 1,805	$ 703
Income before provision for income taxes																	$ 18,054	17,094	19,316
Contingent purchase price payment																	570	511	462
Revenue							$ 19,211	$ 19,953	$ 18,546	$ 17,428	$ 17,709	$ 17,817	$ 17,226	$ 16,720			75,138	69,472	60,051
Net income							874	$ 1,326	$ 1,721	$ 1,403	1,122	$ 1,358	$ 1,351	$ 944			$ 5,324	4,775	13,690
Promissory Note
Business Acquisition [Line Items]
Number of installments \| Installment																	4
Installment amount payable	$ 900		$ 900
Jamison
Business Acquisition [Line Items]
Cash paid on date of acquisition		$ 3,550
Equity consideration for SLP acquired		3,562					1,342								$ 1,342		$ 1,342
Contingent consideration		$ 1,429															1,342
Earn out payments percentage on EBITDA remainder of fiscal year		20.00%
Earn out payments percentage on EBITDA due in two years		20.00%
Earn out payments percentage on EBITDA due in three years		20.00%
Earn out payments percentage on EBITDA due in four years		20.00%
Earn out payments percentage on EBITDA due in five years		20.00%
Earn Out Payments Percentage On EBITDA Due thereafter		20.00%
Revenue															2,568
Income before provision for income taxes															407
Costs related to acquisition																	245
Fair value adjustments on acquired assets							87								87		$ 87
Jamison \| Promissory Note
Business Acquisition [Line Items]
Number of installments \| Installment																	3
Jamison \| Seller Note
Business Acquisition [Line Items]
Promissory note issued		$ 394
Interest on principal amount		5.00%
Jamison \| Principals Notes
Business Acquisition [Line Items]
Promissory note issued		$ 1,771
Interest on principal amount		5.00%
Milbank
Business Acquisition [Line Items]
Equity consideration for SLP acquired					$ 1,325						673					$ 1,325		673	1,325
Fair value adjustments on acquired assets					148		$ 82				$ 541				$ 82	148	$ 82	541	148
Contingent purchase price payment																	$ 570	$ 511	462
Ten-Sixty
Business Acquisition [Line Items]
Cash paid on date of acquisition				$ 2,500
Promissory note issued				1,479
Costs related to acquisition																			$ 51
Acquisition of assets				$ 1,900,000
Revenue																1,020
Net income																$ 126
Ten-Sixty \| Promissory Note
Business Acquisition [Line Items]
Number of installments \| Installment																			2
Installment amount payable					$ 218	$ 218
Quarterly installments from June 30, 2014 through March 31, 2017																			$ 87
Principal on fixed rate notes, interest rate					5.00%											5.00%			5.00%