Taxonomy Viewer

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

Text	Lang	Role	Container role
Price Risk Derivatives [Table]	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
Disclosure of information about price risk derivative instruments.	en-US	http://www.xbrl.org/2003/role/documentation	http://www.xbrl.org/2003/role/link

Name	Relation Type	Role
Balance Sheet Location [Axis] `us-gaap:BalanceSheetLocationAxis`	parent-child	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities
Income Statement Location [Axis] `us-gaap:IncomeStatementLocationAxis`	parent-child	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities
Price Risk Derivatives [Line Items] `us-gaap:PriceRiskDerivativesLineItems`	parent-child	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities
Balance Sheet Location [Axis] `us-gaap:BalanceSheetLocationAxis`	hypercube-dimension	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivitiesPriceRiskDerivativesTable
Income Statement Location [Axis] `us-gaap:IncomeStatementLocationAxis`	hypercube-dimension	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivitiesPriceRiskDerivativesTable

	Name	Relation Type	Role
	Schedule of Price Risk Derivatives [Table Text Block] `us-gaap:ScheduleOfPriceRiskDerivativesTableTextBlock`	parent-child	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities
	Price Risk Derivatives [Line Items] `us-gaap:PriceRiskDerivativesLineItems`	all	http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivitiesPriceRiskDerivativesTable