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) - USD ($)								3 Months Ended								12 Months Ended
	Jul. 29, 2022	Jul. 30, 2021	Jul. 01, 2019	Apr. 12, 2019	Dec. 13, 2018	Dec. 15, 2015	Mar. 30, 2015	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Revenue								$ 28,492,000	$ 29,042,000	$ 32,173,000	$ 33,510,000	$ 33,804,000	$ 33,461,000	$ 33,101,000	$ 31,237,000	$ 123,217,000	$ 131,603,000	$ 107,983,000
Income before provision for income taxes																38,399,000	31,869,000	22,872,000
Contingent purchase price payment																4,568,000	3,045,000	741,000
Earn out payments percentage on revenue due thereafter						19.00%
Earn out payments percentage on EBITDA due in five years							20.00%
Earn Out Payments Percentage On EBITDA Due thereafter							20.00%
Cortina Asset Management, LLC
Business Acquisition [Line Items]
Aggregate purchase amount																57,824,000
Equity consideration for SLP acquired								2,000				17,400,000				2,000	17,400,000
Fair value adjustments to contingent purchase price consideration																11,780,000	5,670,000	1,100,000
Revenue																11,437,000	2,543,000
Income before provision for income taxes																14,739,000	5,569,000
Cash paid on date of acquisition																17,072,000
Cortina Asset Management, LLC \| Purchase Agreement
Business Acquisition [Line Items]
Aggregate purchase amount			$ 33,577,000
Percentage to acquire business in cash				80.00%
Additional percentage to acquire business in cash			80.00%
Business combination consideration partially offset by net closing credits			$ 35,072,000
Equity consideration for SLP acquired			13,800,000
Business combination acquired revenue				$ 13,027,000
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Exceeded 95% for July 1, 2020 to June 30, 2021
Business Acquisition [Line Items]
Business combination contingent consideration first retention payment				3,370,000										$ 3,370,000
Business combination contingent consideration first retention payment paid in cash		$ 2,696,000
Business combination contingent consideration first retention payment paid in equity		$ 674,000
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Equal to 75% or Less for July 1, 2020 to June 30, 2021
Business Acquisition [Line Items]
Business combination contingent consideration first retention payment				0
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Between 75% and 95% for July 1, 2020 to June 30, 2021
Business Acquisition [Line Items]
Business combination contingent consideration first retention payment, minimum				0
Business combination contingent consideration first retention payment, maximum				3,370,000
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Between 85% and 105% for July 1, 2021 to June 30, 2022
Business Acquisition [Line Items]
Business combination contingent consideration second retention payment, minimum				0
Business combination contingent consideration second retention payment, maximum				5,617,000
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Equal to 85% or Less for July 1, 2021 to June 30, 2022
Business Acquisition [Line Items]
Business combination contingent consideration second retention payment				0
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Between 95% and 140% for July 1, 2022 to June 30, 2023
Business Acquisition [Line Items]
Business combination contingent consideration growth payment, minimum				0
Business combination contingent consideration growth payment, maximum				17,222,000
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Equal to 95% or Less for July 1, 2022 to June 30, 2023
Business Acquisition [Line Items]
Business combination contingent consideration growth payment				0
Cortina Asset Management, LLC \| Purchase Agreement \| Revenue Exceeded 105% for July 1, 2021 to June 30, 2022
Business Acquisition [Line Items]
Business combination contingent consideration second retention payment				5,617,000
Business combination contingent consideration second retention payment paid in cash	$ 4,494,000
Business combination contingent consideration second retention payment paid in equity	$ 1,123,000
Cortina Asset Management, LLC \| Purchase Agreement \| Maximum
Business Acquisition [Line Items]
Aggregate purchase amount				44,937,000
Additional aggregate purchase amount			26,209,000
Cortina Asset Management, LLC \| Purchase Agreement \| Maximum \| Revenue Between 85% and 105% for July 1, 2021 to June 30, 2022
Business Acquisition [Line Items]
Business combination contingent consideration second retention payment				5,617,000
Cortina Asset Management, LLC \| Purchase Agreement \| Maximum \| Revenue Between 95% and 140% for July 1, 2022 to June 30, 2023
Business Acquisition [Line Items]
Business combination contingent consideration growth payment				$ 17,222,000
Cortina Asset Management, LLC \| Purchase Agreement \| Silvercrest L.P
Business Acquisition [Line Items]
Percentage of business combination consideration issuance				20.00%
Additional aggregate purchase amount			$ 8,952,000
Additional percentage of earn out payment paid in cash			20.00%
Potential earn-out payments period			4 years
Issuance of common stock			662,713
Neosho
Business Acquisition [Line Items]
Equity consideration for SLP acquired					$ 20,000			164,000				563,000				164,000	563,000
Fair value adjustments to contingent purchase price consideration																299,000	365,000	75,000
Cash paid on date of acquisition					399,000
Contingent consideration					1,686,000
Expected payments on first anniversary of closing date					300,000
Earn out payments due in two years					100,000
Earn out payments due in three years					100,000
Earn out payments due in four years					100,000
Earn out payments due in five years					$ 100,000
Percentage of product to obtain earn out payment					50.00%
Percentage of earn out payment paid in cash					75.00%
Percentage of earn out payment paid in equity					25.00%
Contingent purchase price payment																100,000	100,000
Contingent purchase price payment in cash																75,000	75,000
Contingent purchase price payment in equity																25,000	25,000
Cappiccille
Business Acquisition [Line Items]
Equity consideration for SLP acquired								0				0				0	0
Fair value adjustments to contingent purchase price consideration																0	0	126,000
Contingent consideration						$ 354,000
Contingent purchase price payment																0	114,000
Cash paid on date of acquisition						$ 148,000
Earn out payments percentage on revenue remainder of fiscal year						19.00%
Earn out payments percentage on revenue due in two years						19.00%
Earn out payments percentage on revenue due in three years						19.00%
Earn out payments percentage on revenue due in four years						19.00%
Jamison
Business Acquisition [Line Items]
Equity consideration for SLP acquired							$ 3,562,000	$ 0				$ 0				0	0
Fair value adjustments to contingent purchase price consideration																0	0	$ 70,000
Contingent consideration							1,429,000
Contingent purchase price payment																$ 0	$ 160,000
Cash paid on date of acquisition							$ 3,550,000
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%
Jamison \| Seller Note
Business Acquisition [Line Items]
Promissory note issued							$ 394,000
Interest on principal amount							5.00%
Jamison \| Principals Notes
Business Acquisition [Line Items]
Promissory note issued							$ 1,771,000
Interest on principal amount							5.00%