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

Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

Commitments and Contingencies - Additional Information (Detail) - USD ($)		1 Months Ended					3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jan. 31, 2017	Sep. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Commitments And Contingencies [Line Items]
Operating lease rent expense							$ 944,000	$ 923,000	$ 1,898,000	$ 1,887,000
Sub-lease income							67,000	61,000	134,000	160,000
Assets acquired under capital leases									163,000
Depreciation expense							226,000	190,000	434,000	369,000
Capital Lease Assets
Commitments And Contingencies [Line Items]
Depreciation expense							36,000	31,000	74,000	62,000
Additional Office Space
Commitments And Contingencies [Line Items]
Operating lease rent expense, net			$ 10,000						5,000
Refundable security deposit							3,000		$ 3,000
Lease commencement date			Oct. 01, 2017						May 01, 2014
Lease expires			Nov. 30, 2024						Jul. 31, 2019
Number of rent free periods									3 months
Rent credit			$ 40,000,000
Office Space \| Charlottesville, VA.
Commitments And Contingencies [Line Items]
Operating lease rent expense, net									$ 2,000
Refundable security deposit							2,000		$ 2,000
Lease commencement date									Jun. 30, 2015
Lease expires									Jun. 30, 2018
Number of rent free periods									2 months
Office Space \| Bedminster, NJ.
Commitments And Contingencies [Line Items]
Operating lease rent expense, net									$ 11,000
Lease expires									Mar. 31, 2022
Number of rent free periods									4 months
Office Space \| Princeton, NJ.
Commitments And Contingencies [Line Items]
Operating lease rent expense, net				$ 6,000					$ 5,000
Lease expires				Aug. 31, 2022					Apr. 30, 2016
Number of rent free periods				5 months
Office Space \| New York City
Commitments And Contingencies [Line Items]
Operating lease rent expense, net									$ 446,000
Lease commencement date									Oct. 01, 2017
Lease expires									Sep. 30, 2028
Number of rent free periods									12 months
Payments for tenant improvements									$ 2,080,000
Office Space \| Livingston, NJ
Commitments And Contingencies [Line Items]
Operating lease rent expense, net				$ 2,000
Office Equipment
Commitments And Contingencies [Line Items]
Capital lease obligation							311,000		$ 311,000		$ 267,000
Office Equipment \| Telephone System
Commitments And Contingencies [Line Items]
Lease expires									Nov. 30, 2018
Assets acquired under capital leases									$ 321,000
Capital lease, period									5 years
Capital lease, minimum monthly payment									$ 5,000
Office Equipment \| Copier
Commitments And Contingencies [Line Items]
Lease expires		Dec. 31, 2018			Oct. 31, 2018	Jun. 30, 2018
Assets acquired under capital leases		$ 11,000			$ 18,000	$ 21,000
Capital lease, period		2 years			3 years	3 years
Capital lease, minimum monthly payment		$ 1,000			$ 1,000	$ 1,000
Office Equipment \| Two Copiers
Commitments And Contingencies [Line Items]
Lease expires		Jan. 31, 2022
Assets acquired under capital leases		$ 152,000
Capital lease, period		5 years
Capital lease, minimum monthly payment		$ 3,000
Office Equipment \| Jamison
Commitments And Contingencies [Line Items]
Assets acquired under capital leases	$ 253,000
Letter of Credit
Commitments And Contingencies [Line Items]
Refundable security deposit							506,000		506,000		$ 506,000
Letter of Credit \| Boston landlord
Commitments And Contingencies [Line Items]
Refundable security deposit							80,000		80,000
General and administrative
Commitments And Contingencies [Line Items]
Operating lease rent expense, net							$ 877,000	$ 862,000	$ 1,764,000	$ 1,727,000