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|---|---|---|
 0000909832-21-000003-index-headers.html | 2021-03-10 16:43:23 | |
| 0000909832-21-000003-index.html | 2021-03-10 16:43:23 | |
| 0000909832-21-000003.txt | 2021-03-10 16:43:23 | |
 0000909832-21-000003-xbrl.zip | 197204 | 2021-03-10 16:43:23 |
| cost-20210214.htm | 1184924 | 2021-03-10 16:43:23 |
| cost-20210214.xsd | 31509 | 2021-03-10 16:43:23 |
| cost-20210214_cal.xml | 72857 | 2021-03-10 16:43:23 |
| cost-20210214_def.xml | 157781 | 2021-03-10 16:43:23 |
| cost-20210214_htm.xml | 819396 | 2021-03-10 16:43:23 |
| cost-20210214_lab.xml | 457903 | 2021-03-10 16:43:23 |
| cost-20210214_pre.xml | 290576 | 2021-03-10 16:43:23 |
| costex10110q21421.htm | 13676 | 2021-03-10 16:43:23 |
| costex31110q21421.htm | 19321 | 2021-03-10 16:43:23 |
| costex32110q21421.htm | 11251 | 2021-03-10 16:43:23 |
| FilingSummary.xml | 25436 | 2021-03-10 16:43:23 |
| Financial_Report.xlsx | 57605 | 2021-03-10 16:43:23 |
| MetaLinks.json | 502366 | 2021-03-10 16:43:23 |
| R1.htm | 52198 | 2021-03-10 16:43:23 |
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| R27.htm | 27442 | 2021-03-10 16:43:23 |
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| R8.htm | 9718 | 2021-03-10 16:43:23 |
| R9.htm | 6203 | 2021-03-10 16:43:23 |
| report.css | 2767 | 2021-03-10 16:43:23 |
| Show.js | 1085 | 2021-03-10 16:43:23 |