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Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2018 | Apr. 01, 2018 | Mar. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Additional paid-in-capital | $ 74,802 |  | $ 73,829
Retained earnings | $ 8,685 |  | 4,549
Expected contract length | 10 years |  |
Contract asset related to the cost to obtain contracts | $ 999 |  |
Contract asset amortization expense | 122 |  |
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Additional paid-in-capital |  | $ 411 |
Retained earnings |  | 20 |
Hamilton Lane Advisors, L.L.C. |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Non-controlling interest | $ 54,681 |  | $ 50,382
Hamilton Lane Advisors, L.L.C. | Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Non-controlling interest |  | $ 566 |
Separate Accounts and Specialized Funds Concentration Risk | Profits | Minimum |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Incentive fee revenue as a percent of total profit | 6.00% |  |
Separate Accounts and Specialized Funds Concentration Risk | Profits | Maximum |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Incentive fee revenue as a percent of total profit | 12.50% |  |
Incentive fees |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Previously deferred incentive fees recognized during the period | $ 2,541 |  |

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- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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