Taxonomy Viewer

Name	GainLossOnSaleOfTrustAssetsToPayExpensesAbstract
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	xbrli:stringItemType
Period type	duration
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	True

Text	Lang	Role	Container role
Gain (Loss) on Sale of Trust Assets to Pay Expenses [Abstract]	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link

Name	Relation Type	Role
Sale of Trust Assets to Pay Expenses `us-gaap:SaleOfTrustAssetsToPayExpenses`	parent-child	http://fasb.org/us-gaap/role/disclosure/MiscellaneousIndustries
Cost, Trust Asset Sold to Pay Expense `us-gaap:CostOfTrustAssetsSoldToPayExpenses`	parent-child	http://fasb.org/us-gaap/role/disclosure/MiscellaneousIndustries
Gain (Loss) on Sale of Trust Assets to Pay Expenses `us-gaap:GainLossOnSaleOfTrustAssetsToPayExpenses`	parent-child	http://fasb.org/us-gaap/role/disclosure/MiscellaneousIndustries

	Name	Relation Type	Role
	Trusts [Abstract] `us-gaap:TrustsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/MiscellaneousIndustries