Related Party Transactions - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Related Party Transaction [Line Items] | |||
Equity income from investments | $ 1,208us-gaap_IncomeLossFromEquityMethodInvestments | $ 21us-gaap_IncomeLossFromEquityMethodInvestments | $ 1,911us-gaap_IncomeLossFromEquityMethodInvestments |
Performance fees and allocations | 221us-gaap_PerformanceFees | 1,830us-gaap_PerformanceFees | 714us-gaap_PerformanceFees |
Due from Silvercrest Funds | 3,797us-gaap_DueFromRelatedParties | 2,653us-gaap_DueFromRelatedParties | |
General and administrative expense | 13,860us-gaap_GeneralAndAdministrativeExpense | 13,197us-gaap_GeneralAndAdministrativeExpense | 13,680us-gaap_GeneralAndAdministrativeExpense |
Affiliated Entity | |||
Related Party Transaction [Line Items] | |||
Income from management fees |
8,974us-gaap_AssetManagementFees1 / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
8,994us-gaap_AssetManagementFees1 / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
8,484us-gaap_AssetManagementFees1 / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
Income from performance fees and allocations |
1,417samg_PerformanceFeesAndAllocations / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
14samg_PerformanceFeesAndAllocations / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
2,615samg_PerformanceFeesAndAllocations / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
Equity income from investments |
1,196us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
14us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
1,901us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
Performance fees and allocations |
221us-gaap_PerformanceFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
0us-gaap_PerformanceFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
714us-gaap_PerformanceFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
Due from Silvercrest Funds |
3,797us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
2,653us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Income from advisory fees |
592us-gaap_InvestmentAdvisoryFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
479us-gaap_InvestmentAdvisoryFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
408us-gaap_InvestmentAdvisoryFees / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
Receivable from partners |
2us-gaap_AccountsReceivableRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
78us-gaap_AccountsReceivableRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Affiliated Entity | Minimum | |||
Related Party Transaction [Line Items] | |||
Management and advisory fees percentage |
0.00%samg_ManagementAndAdvisoryFeesPercentage / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Percentage of performance fees |
0.00%samg_PercentageOfPerformanceFees / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Affiliated Entity | Maximum | |||
Related Party Transaction [Line Items] | |||
Management and advisory fees percentage |
1.75%samg_ManagementAndAdvisoryFeesPercentage / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Percentage of performance fees |
10.00%samg_PercentageOfPerformanceFees / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |
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Death of Chief Executive Officer | |||
Related Party Transaction [Line Items] | |||
General and administrative expense |
780us-gaap_GeneralAndAdministrativeExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember |
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Proceeds from Life Insurance Policies |
$ 3,010us-gaap_ProceedsFromLifeInsurancePolicies / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ChiefExecutiveOfficerMember |
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- Definition
Management and advisory fees percentage. No definition available.
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- Definition
Percentage of performance fees. No definition available.
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- Definition
Performance fees and allocations. No definition available.
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- Definition
For an unclassified balance sheet, amount of receivables arising from transactions with related parties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of fixed fee revenue for the management of an investment fund portfolio. Excludes investment advisory, distribution and servicing, and performance fees. No definition available.
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- Definition
For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of fees earned from providing investment advice and research to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of revenue earned by the entity based on the investment results achieved. Excludes fees based upon a percentage of the assets under management not performance-related. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow for proceeds from life insurance policies for which the entity is the beneficiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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