Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000022356-22-000051-index-headers.html | 2022-11-04 15:37:09 | |
| 0000022356-22-000051-index.html | 2022-11-04 15:37:09 | |
| 0000022356-22-000051.txt | 2022-11-04 15:37:09 | |
 0000022356-22-000051-xbrl.zip | 595066 | 2022-11-04 15:37:09 |
| cbsh-20220930.htm | 5584558 | 2022-11-04 15:37:09 |
| cbsh-20220930.xsd | 112519 | 2022-11-04 15:37:09 |
| cbsh-20220930_cal.xml | 139212 | 2022-11-04 15:37:09 |
| cbsh-20220930_def.xml | 476178 | 2022-11-04 15:37:09 |
| cbsh-20220930_htm.xml | 6316190 | 2022-11-04 15:37:09 |
| cbsh-20220930_lab.xml | 1045400 | 2022-11-04 15:37:09 |
| cbsh-20220930_pre.xml | 723808 | 2022-11-04 15:37:09 |
| cbsh9302022ex311.htm | 9638 | 2022-11-04 15:37:09 |
| cbsh9302022ex312.htm | 9803 | 2022-11-04 15:37:09 |
| cbsh9302022ex32.htm | 7496 | 2022-11-04 15:37:09 |
| FilingSummary.xml | 65895 | 2022-11-04 15:37:09 |
| Financial_Report.xlsx | 188216 | 2022-11-04 15:37:09 |
| MetaLinks.json | 1032530 | 2022-11-04 15:37:09 |
| R1.htm | 51557 | 2022-11-04 15:37:09 |
| R10.htm | 7100 | 2022-11-04 15:37:09 |
| R11.htm | 642039 | 2022-11-04 15:37:09 |
| R12.htm | 198440 | 2022-11-04 15:37:09 |
| R13.htm | 48614 | 2022-11-04 15:37:09 |
| R14.htm | 8609 | 2022-11-04 15:37:09 |
| R15.htm | 16897 | 2022-11-04 15:37:09 |
| R16.htm | 25386 | 2022-11-04 15:37:09 |
| R17.htm | 43058 | 2022-11-04 15:37:09 |
| R18.htm | 43629 | 2022-11-04 15:37:09 |
| R19.htm | 94216 | 2022-11-04 15:37:09 |
| R2.htm | 121286 | 2022-11-04 15:37:09 |
| R20.htm | 172644 | 2022-11-04 15:37:09 |
| R21.htm | 59773 | 2022-11-04 15:37:09 |
| R22.htm | 29048 | 2022-11-04 15:37:09 |
| R23.htm | 42570 | 2022-11-04 15:37:09 |
| R24.htm | 289352 | 2022-11-04 15:37:09 |
| R25.htm | 160347 | 2022-11-04 15:37:09 |
| R26.htm | 4942 | 2022-11-04 15:37:09 |
| R27.htm | 632081 | 2022-11-04 15:37:09 |
| R28.htm | 193720 | 2022-11-04 15:37:09 |
| R29.htm | 56860 | 2022-11-04 15:37:09 |
| R3.htm | 17605 | 2022-11-04 15:37:09 |
| R30.htm | 15944 | 2022-11-04 15:37:09 |
| R31.htm | 22663 | 2022-11-04 15:37:09 |
| R32.htm | 41610 | 2022-11-04 15:37:09 |
| R33.htm | 43080 | 2022-11-04 15:37:09 |
| R34.htm | 87238 | 2022-11-04 15:37:09 |
| R35.htm | 169991 | 2022-11-04 15:37:09 |
| R36.htm | 58501 | 2022-11-04 15:37:09 |
| R37.htm | 31034 | 2022-11-04 15:37:09 |
| R38.htm | 39767 | 2022-11-04 15:37:09 |
| R39.htm | 294021 | 2022-11-04 15:37:09 |
| R4.htm | 133813 | 2022-11-04 15:37:09 |
| R40.htm | 158420 | 2022-11-04 15:37:09 |
| R41.htm | 39670 | 2022-11-04 15:37:09 |
| R42.htm | 22276 | 2022-11-04 15:37:09 |
| R43.htm | 37798 | 2022-11-04 15:37:09 |
| R44.htm | 50435 | 2022-11-04 15:37:09 |
| R45.htm | 94538 | 2022-11-04 15:37:09 |
| R46.htm | 98865 | 2022-11-04 15:37:09 |
| R47.htm | 14940 | 2022-11-04 15:37:09 |
| R48.htm | 45123 | 2022-11-04 15:37:09 |
| R49.htm | 13494 | 2022-11-04 15:37:09 |
| R5.htm | 41096 | 2022-11-04 15:37:09 |
| R50.htm | 27328 | 2022-11-04 15:37:09 |
| R51.htm | 40738 | 2022-11-04 15:37:09 |
| R52.htm | 24332 | 2022-11-04 15:37:09 |
| R53.htm | 50068 | 2022-11-04 15:37:09 |
| R54.htm | 51446 | 2022-11-04 15:37:09 |
| R55.htm | 42925 | 2022-11-04 15:37:09 |
| R56.htm | 29005 | 2022-11-04 15:37:09 |
| R57.htm | 5621 | 2022-11-04 15:37:09 |
| R58.htm | 17811 | 2022-11-04 15:37:09 |
| R59.htm | 13245 | 2022-11-04 15:37:09 |
| R6.htm | 60084 | 2022-11-04 15:37:09 |
| R60.htm | 26346 | 2022-11-04 15:37:09 |
| R61.htm | 12166 | 2022-11-04 15:37:09 |
| R62.htm | 24078 | 2022-11-04 15:37:09 |
| R63.htm | 7494 | 2022-11-04 15:37:09 |
| R64.htm | 12802 | 2022-11-04 15:37:09 |
| R65.htm | 6166 | 2022-11-04 15:37:09 |
| R66.htm | 21843 | 2022-11-04 15:37:09 |
| R67.htm | 44052 | 2022-11-04 15:37:09 |
| R68.htm | 5319 | 2022-11-04 15:37:09 |
| R69.htm | 48107 | 2022-11-04 15:37:09 |
| R7.htm | 4778 | 2022-11-04 15:37:09 |
| R70.htm | 16074 | 2022-11-04 15:37:09 |
| R71.htm | 46073 | 2022-11-04 15:37:09 |
| R72.htm | 35473 | 2022-11-04 15:37:09 |
| R73.htm | 20749 | 2022-11-04 15:37:09 |
| R74.htm | 34896 | 2022-11-04 15:37:09 |
| R75.htm | 29536 | 2022-11-04 15:37:09 |
| R76.htm | 23540 | 2022-11-04 15:37:09 |
| R77.htm | 53058 | 2022-11-04 15:37:09 |
| R78.htm | 5449 | 2022-11-04 15:37:09 |
| R79.htm | 38300 | 2022-11-04 15:37:09 |
| R8.htm | 106008 | 2022-11-04 15:37:09 |
| R80.htm | 42504 | 2022-11-04 15:37:09 |
| R81.htm | 17031 | 2022-11-04 15:37:09 |
| R82.htm | 17531 | 2022-11-04 15:37:09 |
| R83.htm | 14003 | 2022-11-04 15:37:09 |
| R84.htm | 27639 | 2022-11-04 15:37:09 |
| R85.htm | 10399 | 2022-11-04 15:37:09 |
| R86.htm | 23079 | 2022-11-04 15:37:09 |
| R87.htm | 14190 | 2022-11-04 15:37:09 |
| R88.htm | 8817 | 2022-11-04 15:37:09 |
| R89.htm | 66703 | 2022-11-04 15:37:09 |
| R9.htm | 6140 | 2022-11-04 15:37:09 |
| R90.htm | 55461 | 2022-11-04 15:37:09 |
| R91.htm | 15448 | 2022-11-04 15:37:09 |
| R92.htm | 34239 | 2022-11-04 15:37:09 |
| R93.htm | 21512 | 2022-11-04 15:37:09 |
| R94.htm | 22616 | 2022-11-04 15:37:09 |
| R95.htm | 157308 | 2022-11-04 15:37:09 |
| report.css | 2768 | 2022-11-04 15:37:09 |
| Show.js | 1086 | 2022-11-04 15:37:09 |