|
Organization and Business - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended | 0 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
SLP [Member]
|
Jun. 30, 2013
Class B Partnership Units [Member]
SLP [Member]
|
Jul. 31, 2013
Subsequent Event [Member]
SLP [Member]
|
Jun. 30, 2013
Predecessor [Member]
|
Jun. 30, 2013
Predecessor [Member]
|
Mar. 11, 2004
Silvercrest Financial Services, Inc. ("SFS") [Member]
|
Dec. 31, 2004
SAM Alternative Solutions, Inc.) (LGI) [Member]
|
Oct. 03, 2008
Marathon Capital Group, LLC (MCG) [Member]
|
Jun. 26, 2013
Class A Common Stock [Member]
|
Jun. 30, 2013
Class A Common Stock [Member]
|
Jul. 02, 2013
Class A Common Stock [Member]
Subsequent Event [Member]
|
Jul. 12, 2013
Class A Common Stock [Member]
Subsequent Event [Member]
|
Jul. 02, 2013
Class A Common Stock [Member]
Subsequent Event [Member]
Underwriting Discounts and Commissions [Member]
|
Jul. 02, 2013
Class A Common Stock [Member]
Subsequent Event [Member]
Offering Expenses [Member]
|
|
| Business And Organization [Line Items] | ||||||||||||||||||
| Percentage of outstanding shares acquired | 100.00% | 100.00% | 100.00% | |||||||||||||||
| Number of shares held by parent | 4,790,694 | |||||||||||||||||
| Percentage ownership in a consolidated subsidiary | 43.00% | 43.00% | ||||||||||||||||
| Number of shares issued during IPO | 4,790,684 | 4,790,684 | 718,603 | |||||||||||||||
| Initial public offering shares price | $ 11.00 | $ 11.00 | $ 11.00 | |||||||||||||||
| Net proceeds from IPO | $ 48,248 | |||||||||||||||||
| Stock issuance costs | 786 | 3,324 | 1,126 | |||||||||||||||
| Distribution of partnership units for each limited partnership unit prior to the consummation of the IPO | 19.64 | 19.64 | ||||||||||||||||
| Class B partnership units issued | 10,000,000 | |||||||||||||||||
| Tax receivable agreement with limited partner, percentage of cash savings to be paid | 85.00% | 85.00% | ||||||||||||||||
| Recognition of tax receivable agreement liability | 3,734 | 3,734 | ||||||||||||||||
| Special distribution paid by parent | 10,000 | |||||||||||||||||
| Borrowings under revolving credit facility | 7,000 | 7,000 | ||||||||||||||||
| Special bonus payment | 754 | |||||||||||||||||
| Number of partnership units purchased from partners | 3,540,684 | |||||||||||||||||
| Initial public offering shares price | $ 11.00 | |||||||||||||||||
| Value of partnership units purchased from partners | 35,365 | |||||||||||||||||
| Underwriting discounts and commissions | 2,457 | |||||||||||||||||
| Estimated offering expenses | $ 1,126 | |||||||||||||||||
| Percentage of cash savings expected to be realized | 15.00% | 15.00% | ||||||||||||||||
| Statutory corporate income tax rate | 40.00% | 40.00% | ||||||||||||||||
| Number of performance units conditionally issuable | 237,089 | 146,452 | 237,089 | 146,452 | ||||||||||||||