| Quantity of the investment. Indicate the measure in the unit of measure. This is commonly used for investments other than securities. For example, if the investment is gold, the balance would be the number of ounces and the unit of measure would indicate "ounces". | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investment Sold, Not yet Purchased, Balance, Other Measure (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Investment Sold, Not yet Purchased, Balance, Other Measure, Beginning Balance (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Investment Sold, Not yet Purchased, Balance, Other Measure, Ending Balance (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |