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v3.20.1

Net Asset Value and Financial Highlights (Details Textual) | Mar. 22, 2018 | Jan. 01, 2018
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Net Asset Value and Financial Highlights (Textual) |  |
Percentage of fund expenses capped | 3.50% | 1.00%

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- Definition It denotes the percentage of fund expenses capped at average net assets. + References No definition available. + Details
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