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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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The percent of net assets of the aggregate value of all restricted investments.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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