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| 0000885550-22-000009-index.html | 2022-02-11 16:04:09 | |
| 0000885550-22-000009.txt | 2022-02-11 16:04:09 | |
 0000885550-22-000009-xbrl.zip | 593460 | 2022-02-11 16:04:09 |
| cacc-20211231.htm | 5300192 | 2022-02-11 16:04:09 |
| cacc-20211231.xsd | 97646 | 2022-02-11 16:04:09 |
| cacc-20211231xex21.htm | 16593 | 2022-02-11 16:04:09 |
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| cacc-20211231xex31a.htm | 11231 | 2022-02-11 16:04:09 |
| cacc-20211231xex32a.htm | 7462 | 2022-02-11 16:04:09 |
| cacc-20211231_cal.xml | 92982 | 2022-02-11 16:04:09 |
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| cacc-20211231_htm.xml | 6815875 | 2022-02-11 16:04:09 |
| cacc-20211231_lab.xml | 951624 | 2022-02-11 16:04:09 |
| cacc-20211231_pre.xml | 670104 | 2022-02-11 16:04:09 |
| FilingSummary.xml | 61743 | 2022-02-11 16:04:09 |
| Financial_Report.xlsx | 183554 | 2022-02-11 16:04:09 |
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| report.css | 2768 | 2022-02-11 16:04:09 |
| Show.js | 1086 | 2022-02-11 16:04:09 |