Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000726958-21-000123-index-headers.html | 2021-09-08 16:59:54 | |
| 0000726958-21-000123-index.html | 2021-09-08 16:59:54 | |
| 0000726958-21-000123.txt | 2021-09-08 16:59:54 | |
 0000726958-21-000123-xbrl.zip | 152192 | 2021-09-08 16:59:54 |
| caseys-separationagreement.htm | 63113 | 2021-09-08 16:59:54 |
| casy-20210731.htm | 679267 | 2021-09-08 16:59:54 |
| casy-20210731.xsd | 25614 | 2021-09-08 16:59:54 |
| casy-20210731_cal.xml | 53698 | 2021-09-08 16:59:54 |
| casy-20210731_def.xml | 104172 | 2021-09-08 16:59:54 |
| casy-20210731_htm.xml | 355943 | 2021-09-08 16:59:54 |
| casy-20210731_lab.xml | 358022 | 2021-09-08 16:59:54 |
| casy-20210731_pre.xml | 212337 | 2021-09-08 16:59:54 |
| casy-ex311_2021731xq1.htm | 9314 | 2021-09-08 16:59:54 |
| casy-ex312_2021731xq1.htm | 9245 | 2021-09-08 16:59:54 |
| casy-ex321_2021731xq1.htm | 5687 | 2021-09-08 16:59:54 |
| casy-ex322_2021731xq1.htm | 5668 | 2021-09-08 16:59:54 |
| FilingSummary.xml | 19028 | 2021-09-08 16:59:54 |
| Financial_Report.xlsx | 44469 | 2021-09-08 16:59:54 |
| MetaLinks.json | 361868 | 2021-09-08 16:59:54 |
| R1.htm | 52239 | 2021-09-08 16:59:54 |
| R10.htm | 10511 | 2021-09-08 16:59:54 |
| R11.htm | 10896 | 2021-09-08 16:59:54 |
| R12.htm | 14187 | 2021-09-08 16:59:54 |
| R13.htm | 42292 | 2021-09-08 16:59:54 |
| R14.htm | 7682 | 2021-09-08 16:59:54 |
| R15.htm | 8682 | 2021-09-08 16:59:54 |
| R16.htm | 9476 | 2021-09-08 16:59:54 |
| R17.htm | 13234 | 2021-09-08 16:59:54 |
| R18.htm | 9305 | 2021-09-08 16:59:54 |
| R19.htm | 37183 | 2021-09-08 16:59:54 |
| R2.htm | 73881 | 2021-09-08 16:59:54 |
| R20.htm | 7204 | 2021-09-08 16:59:54 |
| R21.htm | 4975 | 2021-09-08 16:59:54 |
| R22.htm | 49019 | 2021-09-08 16:59:54 |
| R23.htm | 38470 | 2021-09-08 16:59:54 |
| R24.htm | 15801 | 2021-09-08 16:59:54 |
| R25.htm | 53961 | 2021-09-08 16:59:54 |
| R26.htm | 56484 | 2021-09-08 16:59:54 |
| R27.htm | 13231 | 2021-09-08 16:59:54 |
| R28.htm | 5664 | 2021-09-08 16:59:54 |
| R29.htm | 13131 | 2021-09-08 16:59:54 |
| R3.htm | 4900 | 2021-09-08 16:59:54 |
| R30.htm | 9651 | 2021-09-08 16:59:54 |
| R4.htm | 59019 | 2021-09-08 16:59:54 |
| R5.htm | 40414 | 2021-09-08 16:59:54 |
| R6.htm | 4357 | 2021-09-08 16:59:54 |
| R7.htm | 90364 | 2021-09-08 16:59:54 |
| R8.htm | 5634 | 2021-09-08 16:59:54 |
| R9.htm | 7473 | 2021-09-08 16:59:54 |
| report.css | 2767 | 2021-09-08 16:59:54 |
| Show.js | 1085 | 2021-09-08 16:59:54 |