XML 70 R55.htm IDEA: XBRL DOCUMENT
v3.25.2

Leases - Narrative (Details) $ in Thousands | Jan. 31, 2020 USD ($)
--- | ---
City of Joplin Missouri |
Other Commitments |
Bonds issued | $ 51,400

X
- Definition Sale Leaseback Transaction, Maximum Taxable Exempt Bonds Available + References No definition available. + Details
Name: | casy_SaleLeasebackTransactionMaximumTaxableExemptBondsAvailable
Namespace Prefix: | casy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=casy_CityOfJoplinMissouriMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |