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Investments - Components of assets and liabilities (Details 3) - EAM Trust - USD ($) $ in Thousands | Apr. 30, 2015 | Apr. 30, 2014
--- | --- | ---
Schedule of Investments [Line Items] |  |  |
EAM's total assets |  | $ 60,159 | $ 59,965
EAM's total liabilities | [1] | (3,104) | (3,158)
EAM's total equity |  | $ 57,055 | $ 56,807
[1] | At April 30, 2015 and 2014, EAM's total liabilities included a payable to VLI for its accrued non-voting revenues and non-voting profits interests of $1,951,000 and $1,887,000, respectively.

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