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FAIR VALUE MEASUREMENT - Total return swap contracts (Details)	Dec. 31, 2020 shares
Total return swap contract
Financial Instruments
Units outstanding	5,695,000

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

Number of capital units or capital shares outstanding. This element is relevant to issuers of face-amount certificates and registered investment companies.

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No definition available.

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