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Schedule of Unrealized (losses) Gains for All Equity Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020
Schedule Of Unrealized Losses Gains For All Equity Investments |  |  |  |
Net gains (losses) recognized during the period on equity investments | $ 5,435 | $ (1,226) | $ 5,822 | $ (817)
Less: net gains and losses recognized during the period on equity investments sold during the period |  |  |  |
Unrealized gains (losses) recognized during the period on equity investments still held at the reporting date | $ 5,435 | $ (1,226) | $ 5,822 | $ (817)

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- Definition Amount of recognized gain (loss) net on equity securities which has been sold (FV-NI). + References No definition available. + Details
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- Definition Amount of recognized unrealized gain (loss) net on equity securities held (FV-NI). + References No definition available. + Details
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