Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000909832-22-000014-index-headers.html | 2022-06-01 19:26:13 | |
| 0000909832-22-000014-index.html | 2022-06-01 19:26:13 | |
| 0000909832-22-000014.txt | 2022-06-01 19:26:13 | |
 0000909832-22-000014-xbrl.zip | 213077 | 2022-06-01 19:26:13 |
| cost-20220508.htm | 1158356 | 2022-06-01 19:26:13 |
| cost-20220508.xsd | 27041 | 2022-06-01 19:26:13 |
| cost-20220508_cal.xml | 54800 | 2022-06-01 19:26:13 |
| cost-20220508_def.xml | 126920 | 2022-06-01 19:26:13 |
| cost-20220508_htm.xml | 798564 | 2022-06-01 19:26:13 |
| cost-20220508_lab.xml | 421150 | 2022-06-01 19:26:13 |
| cost-20220508_pre.xml | 262217 | 2022-06-01 19:26:13 |
| costex31110q5822.htm | 19272 | 2022-06-01 19:26:13 |
| costex3210q5822.htm | 257532 | 2022-06-01 19:26:13 |
| costex32110q5822.htm | 10322 | 2022-06-01 19:26:13 |
| FilingSummary.xml | 23740 | 2022-06-01 19:26:13 |
| Financial_Report.xlsx | 54401 | 2022-06-01 19:26:13 |
| MetaLinks.json | 504412 | 2022-06-01 19:26:13 |
| R1.htm | 52331 | 2022-06-01 19:26:13 |
| R10.htm | 16776 | 2022-06-01 19:26:13 |
| R11.htm | 24008 | 2022-06-01 19:26:13 |
| R12.htm | 19560 | 2022-06-01 19:26:13 |
| R13.htm | 26045 | 2022-06-01 19:26:13 |
| R14.htm | 19487 | 2022-06-01 19:26:13 |
| R15.htm | 24418 | 2022-06-01 19:26:13 |
| R16.htm | 53929 | 2022-06-01 19:26:13 |
| R17.htm | 19791 | 2022-06-01 19:26:13 |
| R18.htm | 33472 | 2022-06-01 19:26:13 |
| R19.htm | 14338 | 2022-06-01 19:26:13 |
| R2.htm | 86432 | 2022-06-01 19:26:13 |
| R20.htm | 19025 | 2022-06-01 19:26:13 |
| R21.htm | 13242 | 2022-06-01 19:26:13 |
| R22.htm | 25204 | 2022-06-01 19:26:13 |
| R23.htm | 18805 | 2022-06-01 19:26:13 |
| R24.htm | 51007 | 2022-06-01 19:26:13 |
| R25.htm | 29935 | 2022-06-01 19:26:13 |
| R26.htm | 29729 | 2022-06-01 19:26:13 |
| R27.htm | 29103 | 2022-06-01 19:26:13 |
| R28.htm | 19411 | 2022-06-01 19:26:13 |
| R29.htm | 33965 | 2022-06-01 19:26:13 |
| R3.htm | 28954 | 2022-06-01 19:26:13 |
| R30.htm | 6691 | 2022-06-01 19:26:13 |
| R31.htm | 10740 | 2022-06-01 19:26:13 |
| R32.htm | 5795 | 2022-06-01 19:26:13 |
| R33.htm | 27472 | 2022-06-01 19:26:13 |
| R34.htm | 23503 | 2022-06-01 19:26:13 |
| R35.htm | 7126 | 2022-06-01 19:26:13 |
| R36.htm | 25574 | 2022-06-01 19:26:13 |
| R37.htm | 24698 | 2022-06-01 19:26:13 |
| R38.htm | 19470 | 2022-06-01 19:26:13 |
| R4.htm | 121743 | 2022-06-01 19:26:13 |
| R5.htm | 19663 | 2022-06-01 19:26:13 |
| R6.htm | 72292 | 2022-06-01 19:26:13 |
| R7.htm | 88053 | 2022-06-01 19:26:13 |
| R8.htm | 10950 | 2022-06-01 19:26:13 |
| R9.htm | 33724 | 2022-06-01 19:26:13 |
| report.css | 2767 | 2022-06-01 19:26:13 |
| Show.js | 1085 | 2022-06-01 19:26:13 |