Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000022356-26-000069-index-headers.html | 2026-02-24 16:57:37 | |
| 0000022356-26-000069-index.html | 2026-02-24 16:57:37 | |
| 0000022356-26-000069.txt | 2026-02-24 16:57:37 | |
 0000022356-26-000069-xbrl.zip | 820465 | 2026-02-24 16:57:37 |
| cbsh-20251231.htm | 6503739 | 2026-02-24 16:57:37 |
| cbsh-20251231.xsd | 185847 | 2026-02-24 16:57:37 |
| cbsh-20251231_cal.xml | 231530 | 2026-02-24 16:57:37 |
| cbsh-20251231_def.xml | 765391 | 2026-02-24 16:57:37 |
 cbsh-20251231_g1.jpg | 102172 | 2026-02-24 16:57:37 |
 cbsh-20251231_g2.gif | 1418 | 2026-02-24 16:57:37 |
 cbsh-20251231_g3.jpg | 2624 | 2026-02-24 16:57:37 |
| cbsh-20251231_htm.xml | 6898047 | 2026-02-24 16:57:37 |
| cbsh-20251231_lab.xml | 1742806 | 2026-02-24 16:57:37 |
| cbsh-20251231_pre.xml | 1270774 | 2026-02-24 16:57:37 |
| cbsh12312025ex21q4.htm | 9848 | 2026-02-24 16:57:37 |
| cbsh12312025ex23q4.htm | 2717 | 2026-02-24 16:57:37 |
| cbsh12312025ex24q4.htm | 7847 | 2026-02-24 16:57:37 |
| cbsh12312025ex311.htm | 9025 | 2026-02-24 16:57:37 |
| cbsh12312025ex312.htm | 9185 | 2026-02-24 16:57:37 |
| cbsh12312025ex32.htm | 6500 | 2026-02-24 16:57:37 |
| cbsh12312025exhibit1015.htm | 73557 | 2026-02-24 16:57:37 |
| cbsh12312025exhibit1016.htm | 42997 | 2026-02-24 16:57:37 |
| FilingSummary.xml | 109225 | 2026-02-24 16:57:37 |
| MetaLinks.json | 2165881 | 2026-02-24 16:57:37 |
| R1.htm | 64897 | 2026-02-24 16:57:37 |
| R10.htm | 60651 | 2026-02-24 16:57:37 |
| R100.htm | 31941 | 2026-02-24 16:57:37 |
| R101.htm | 11117 | 2026-02-24 16:57:37 |
| R102.htm | 36607 | 2026-02-24 16:57:37 |
| R103.htm | 50106 | 2026-02-24 16:57:37 |
| R104.htm | 14640 | 2026-02-24 16:57:37 |
| R105.htm | 9622 | 2026-02-24 16:57:37 |
| R106.htm | 29628 | 2026-02-24 16:57:37 |
| R107.htm | 11619 | 2026-02-24 16:57:37 |
| R108.htm | 33200 | 2026-02-24 16:57:37 |
| R109.htm | 36805 | 2026-02-24 16:57:37 |
| R11.htm | 808240 | 2026-02-24 16:57:37 |
| R110.htm | 26449 | 2026-02-24 16:57:37 |
| R111.htm | 16304 | 2026-02-24 16:57:37 |
| R112.htm | 63603 | 2026-02-24 16:57:37 |
| R113.htm | 15691 | 2026-02-24 16:57:37 |
| R114.htm | 49804 | 2026-02-24 16:57:37 |
| R115.htm | 19321 | 2026-02-24 16:57:37 |
| R116.htm | 37030 | 2026-02-24 16:57:37 |
| R117.htm | 16113 | 2026-02-24 16:57:37 |
| R118.htm | 6523 | 2026-02-24 16:57:37 |
| R119.htm | 52262 | 2026-02-24 16:57:37 |
| R12.htm | 233855 | 2026-02-24 16:57:37 |
| R120.htm | 12486 | 2026-02-24 16:57:37 |
| R121.htm | 41235 | 2026-02-24 16:57:37 |
| R122.htm | 22549 | 2026-02-24 16:57:37 |
| R123.htm | 12881 | 2026-02-24 16:57:37 |
| R124.htm | 48180 | 2026-02-24 16:57:37 |
| R125.htm | 16362 | 2026-02-24 16:57:37 |
| R126.htm | 59760 | 2026-02-24 16:57:37 |
| R127.htm | 20964 | 2026-02-24 16:57:37 |
| R128.htm | 24935 | 2026-02-24 16:57:37 |
| R129.htm | 13859 | 2026-02-24 16:57:37 |
| R13.htm | 17221 | 2026-02-24 16:57:37 |
| R130.htm | 27583 | 2026-02-24 16:57:37 |
| R131.htm | 10484 | 2026-02-24 16:57:37 |
| R132.htm | 11126 | 2026-02-24 16:57:37 |
| R133.htm | 89170 | 2026-02-24 16:57:37 |
| R134.htm | 43751 | 2026-02-24 16:57:37 |
| R135.htm | 10786 | 2026-02-24 16:57:37 |
| R136.htm | 15825 | 2026-02-24 16:57:37 |
| R137.htm | 22444 | 2026-02-24 16:57:37 |
| R138.htm | 198412 | 2026-02-24 16:57:37 |
| R139.htm | 43601 | 2026-02-24 16:57:37 |
| R14.htm | 63715 | 2026-02-24 16:57:37 |
| R140.htm | 19078 | 2026-02-24 16:57:37 |
| R141.htm | 21540 | 2026-02-24 16:57:37 |
| R142.htm | 57687 | 2026-02-24 16:57:37 |
| R143.htm | 28081 | 2026-02-24 16:57:37 |
| R144.htm | 29558 | 2026-02-24 16:57:37 |
| R145.htm | 83766 | 2026-02-24 16:57:37 |
| R146.htm | 46575 | 2026-02-24 16:57:37 |
| R147.htm | 49207 | 2026-02-24 16:57:37 |
| R148.htm | 24932 | 2026-02-24 16:57:37 |
| R149.htm | 10323 | 2026-02-24 16:57:37 |
| R15.htm | 56703 | 2026-02-24 16:57:37 |
| R150.htm | 36999 | 2026-02-24 16:57:37 |
| R151.htm | 20944 | 2026-02-24 16:57:37 |
| R152.htm | 28977 | 2026-02-24 16:57:37 |
| R153.htm | 70373 | 2026-02-24 16:57:37 |
| R154.htm | 57120 | 2026-02-24 16:57:37 |
| R155.htm | 67709 | 2026-02-24 16:57:37 |
| R156.htm | 30716 | 2026-02-24 16:57:37 |
| R16.htm | 11733 | 2026-02-24 16:57:37 |
| R17.htm | 23219 | 2026-02-24 16:57:37 |
| R18.htm | 112473 | 2026-02-24 16:57:37 |
| R19.htm | 147133 | 2026-02-24 16:57:37 |
| R2.htm | 7773 | 2026-02-24 16:57:37 |
| R20.htm | 47900 | 2026-02-24 16:57:37 |
| R21.htm | 47935 | 2026-02-24 16:57:37 |
| R22.htm | 101045 | 2026-02-24 16:57:37 |
| R23.htm | 47109 | 2026-02-24 16:57:37 |
| R24.htm | 74052 | 2026-02-24 16:57:37 |
| R25.htm | 94381 | 2026-02-24 16:57:37 |
| R26.htm | 196347 | 2026-02-24 16:57:37 |
| R27.htm | 160523 | 2026-02-24 16:57:37 |
| R28.htm | 175073 | 2026-02-24 16:57:37 |
| R29.htm | 62340 | 2026-02-24 16:57:37 |
| R3.htm | 150426 | 2026-02-24 16:57:37 |
| R30.htm | 19007 | 2026-02-24 16:57:37 |
| R31.htm | 22524 | 2026-02-24 16:57:37 |
| R32.htm | 99856 | 2026-02-24 16:57:37 |
| R33.htm | 8198 | 2026-02-24 16:57:37 |
| R34.htm | 8465 | 2026-02-24 16:57:37 |
| R35.htm | 4371 | 2026-02-24 16:57:37 |
| R36.htm | 89791 | 2026-02-24 16:57:37 |
| R37.htm | 123185 | 2026-02-24 16:57:37 |
| R38.htm | 806352 | 2026-02-24 16:57:37 |
| R39.htm | 230526 | 2026-02-24 16:57:37 |
| R4.htm | 21865 | 2026-02-24 16:57:37 |
| R40.htm | 15183 | 2026-02-24 16:57:37 |
| R41.htm | 70628 | 2026-02-24 16:57:37 |
| R42.htm | 61944 | 2026-02-24 16:57:37 |
| R43.htm | 10100 | 2026-02-24 16:57:37 |
| R44.htm | 15392 | 2026-02-24 16:57:37 |
| R45.htm | 117796 | 2026-02-24 16:57:37 |
| R46.htm | 150560 | 2026-02-24 16:57:37 |
| R47.htm | 49506 | 2026-02-24 16:57:37 |
| R48.htm | 46209 | 2026-02-24 16:57:37 |
| R49.htm | 86022 | 2026-02-24 16:57:37 |
| R5.htm | 155791 | 2026-02-24 16:57:37 |
| R50.htm | 45957 | 2026-02-24 16:57:37 |
| R51.htm | 70433 | 2026-02-24 16:57:37 |
| R52.htm | 83549 | 2026-02-24 16:57:37 |
| R53.htm | 172075 | 2026-02-24 16:57:37 |
| R54.htm | 155504 | 2026-02-24 16:57:37 |
| R55.htm | 167050 | 2026-02-24 16:57:37 |
| R56.htm | 63078 | 2026-02-24 16:57:37 |
| R57.htm | 10646 | 2026-02-24 16:57:37 |
| R58.htm | 15668 | 2026-02-24 16:57:37 |
| R59.htm | 98062 | 2026-02-24 16:57:37 |
| R6.htm | 44526 | 2026-02-24 16:57:37 |
| R60.htm | 49105 | 2026-02-24 16:57:37 |
| R61.htm | 45631 | 2026-02-24 16:57:37 |
| R62.htm | 22555 | 2026-02-24 16:57:37 |
| R63.htm | 11319 | 2026-02-24 16:57:37 |
| R64.htm | 34020 | 2026-02-24 16:57:37 |
| R65.htm | 56206 | 2026-02-24 16:57:37 |
| R66.htm | 147128 | 2026-02-24 16:57:37 |
| R67.htm | 164896 | 2026-02-24 16:57:37 |
| R68.htm | 21609 | 2026-02-24 16:57:37 |
| R69.htm | 74344 | 2026-02-24 16:57:37 |
| R7.htm | 68025 | 2026-02-24 16:57:37 |
| R70.htm | 23439 | 2026-02-24 16:57:37 |
| R71.htm | 38484 | 2026-02-24 16:57:37 |
| R72.htm | 33479 | 2026-02-24 16:57:37 |
| R73.htm | 76202 | 2026-02-24 16:57:37 |
| R74.htm | 25628 | 2026-02-24 16:57:37 |
| R75.htm | 14251 | 2026-02-24 16:57:37 |
| R76.htm | 11915 | 2026-02-24 16:57:37 |
| R77.htm | 88873 | 2026-02-24 16:57:37 |
| R78.htm | 56958 | 2026-02-24 16:57:37 |
| R79.htm | 51049 | 2026-02-24 16:57:37 |
| R8.htm | 6121 | 2026-02-24 16:57:37 |
| R80.htm | 34581 | 2026-02-24 16:57:37 |
| R81.htm | 10005 | 2026-02-24 16:57:37 |
| R82.htm | 19686 | 2026-02-24 16:57:37 |
| R83.htm | 29277 | 2026-02-24 16:57:37 |
| R84.htm | 28454 | 2026-02-24 16:57:37 |
| R85.htm | 17155 | 2026-02-24 16:57:37 |
| R86.htm | 23042 | 2026-02-24 16:57:37 |
| R87.htm | 15675 | 2026-02-24 16:57:37 |
| R88.htm | 18599 | 2026-02-24 16:57:37 |
| R89.htm | 7693 | 2026-02-24 16:57:37 |
| R9.htm | 116457 | 2026-02-24 16:57:37 |
| R90.htm | 28779 | 2026-02-24 16:57:37 |
| R91.htm | 6848 | 2026-02-24 16:57:37 |
| R92.htm | 6924 | 2026-02-24 16:57:37 |
| R93.htm | 13067 | 2026-02-24 16:57:37 |
| R94.htm | 14457 | 2026-02-24 16:57:37 |
| R95.htm | 50564 | 2026-02-24 16:57:37 |
| R96.htm | 18171 | 2026-02-24 16:57:37 |
| R97.htm | 9273 | 2026-02-24 16:57:37 |
| R98.htm | 14813 | 2026-02-24 16:57:37 |
| R99.htm | 10359 | 2026-02-24 16:57:37 |
| report.css | 2768 | 2026-02-24 16:57:37 |
| Show.js | 1086 | 2026-02-24 16:57:37 |