Taxonomy Viewer

Name	MunicipalDebtSecuritiesAtCarryingValue
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	xbrli:monetaryItemType
Period type	instant
Substitution Group	xbrli:item
Balance	debit
Nillable	True
Abstract	False

Text	Lang	Role	Container role
Municipal Debt Securities, at Carrying Value	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
Bonds or similar securities issued by state, city, or local governments or the agencies operated by state, city, or local governments which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.	en-US	http://www.xbrl.org/2003/role/documentation	http://www.xbrl.org/2003/role/link

Name	Relation Type	Role
Cash Equivalents, at Carrying Value `us-gaap:CashEquivalentsAtCarryingValue`	summation-item	http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassified
Cash Equivalents, at Carrying Value [Abstract] `us-gaap:CashEquivalentsAtCarryingValueAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/CashAndCashEquivalents
Cash Equivalents, at Carrying Value [Abstract] `us-gaap:CashEquivalentsAtCarryingValueAbstract`	domain-member	http://fasb.org/us-gaap/role/disclosure/CashAndCashEquivalentsScheduleOfCashAndCashEquivalentsTable