Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000887343-17-000168-index-headers.html | 2017-11-07 19:29:57 | |
| 0000887343-17-000168-index.html | 2017-11-07 19:29:57 | |
| 0000887343-17-000168.txt | 2017-11-07 19:29:57 | |
 0000887343-17-000168-xbrl.zip | 415955 | 2017-11-07 19:29:57 |
| colb-20170930.xml | 7345895 | 2017-11-07 19:29:57 |
| colb-20170930.xsd | 72213 | 2017-11-07 19:29:57 |
| colb-20170930_cal.xml | 111427 | 2017-11-07 19:29:57 |
| colb-20170930_def.xml | 531215 | 2017-11-07 19:29:57 |
| colb-20170930_lab.xml | 886312 | 2017-11-07 19:29:57 |
| colb-20170930_pre.xml | 611072 | 2017-11-07 19:29:57 |
| colb3q2017ex311.htm | 12408 | 2017-11-07 19:29:57 |
| colb3q2017ex312.htm | 12419 | 2017-11-07 19:29:57 |
| colb3q2017ex32.htm | 8380 | 2017-11-07 19:29:57 |
| colb3q2017form10-q.htm | 3979710 | 2017-11-07 19:29:57 |
| FilingSummary.xml | 46839 | 2017-11-07 19:29:57 |
| Financial_Report.xlsx | 117359 | 2017-11-07 19:29:57 |
| R1.htm | 20529 | 2017-11-07 19:29:57 |
| R10.htm | 15229 | 2017-11-07 19:29:57 |
| R11.htm | 196189 | 2017-11-07 19:29:57 |
| R12.htm | 830963 | 2017-11-07 19:29:57 |
| R13.htm | 825061 | 2017-11-07 19:29:57 |
| R14.htm | 36232 | 2017-11-07 19:29:57 |
| R15.htm | 52938 | 2017-11-07 19:29:57 |
| R16.htm | 62039 | 2017-11-07 19:29:57 |
| R17.htm | 98131 | 2017-11-07 19:29:57 |
| R18.htm | 11794 | 2017-11-07 19:29:57 |
| R19.htm | 9385 | 2017-11-07 19:29:57 |
| R2.htm | 90299 | 2017-11-07 19:29:57 |
| R20.htm | 129099 | 2017-11-07 19:29:57 |
| R21.htm | 304078 | 2017-11-07 19:29:57 |
| R22.htm | 65037 | 2017-11-07 19:29:57 |
| R23.htm | 6675 | 2017-11-07 19:29:57 |
| R24.htm | 198269 | 2017-11-07 19:29:57 |
| R25.htm | 835121 | 2017-11-07 19:29:57 |
| R26.htm | 825873 | 2017-11-07 19:29:57 |
| R27.htm | 32187 | 2017-11-07 19:29:57 |
| R28.htm | 50694 | 2017-11-07 19:29:57 |
| R29.htm | 60370 | 2017-11-07 19:29:57 |
| R3.htm | 12274 | 2017-11-07 19:29:57 |
| R30.htm | 108366 | 2017-11-07 19:29:57 |
| R31.htm | 131142 | 2017-11-07 19:29:57 |
| R32.htm | 296232 | 2017-11-07 19:29:57 |
| R33.htm | 64668 | 2017-11-07 19:29:57 |
| R34.htm | 8632 | 2017-11-07 19:29:57 |
| R35.htm | 13905 | 2017-11-07 19:29:57 |
| R36.htm | 35783 | 2017-11-07 19:29:57 |
| R37.htm | 34994 | 2017-11-07 19:29:57 |
| R38.htm | 10848 | 2017-11-07 19:29:57 |
| R39.htm | 45507 | 2017-11-07 19:29:57 |
| R4.htm | 104155 | 2017-11-07 19:29:57 |
| R40.htm | 27246 | 2017-11-07 19:29:57 |
| R41.htm | 11687 | 2017-11-07 19:29:57 |
| R42.htm | 19482 | 2017-11-07 19:29:57 |
| R43.htm | 98376 | 2017-11-07 19:29:57 |
| R44.htm | 29824 | 2017-11-07 19:29:57 |
| R45.htm | 107722 | 2017-11-07 19:29:57 |
| R46.htm | 106056 | 2017-11-07 19:29:57 |
| R47.htm | 41020 | 2017-11-07 19:29:57 |
| R48.htm | 15198 | 2017-11-07 19:29:57 |
| R49.htm | 5777 | 2017-11-07 19:29:57 |
| R5.htm | 29681 | 2017-11-07 19:29:57 |
| R50.htm | 80753 | 2017-11-07 19:29:57 |
| R51.htm | 7423 | 2017-11-07 19:29:57 |
| R52.htm | 294236 | 2017-11-07 19:29:57 |
| R53.htm | 18647 | 2017-11-07 19:29:57 |
| R54.htm | 14174 | 2017-11-07 19:29:57 |
| R55.htm | 25313 | 2017-11-07 19:29:57 |
| R56.htm | 30734 | 2017-11-07 19:29:57 |
| R57.htm | 13454 | 2017-11-07 19:29:57 |
| R58.htm | 39246 | 2017-11-07 19:29:57 |
| R59.htm | 48707 | 2017-11-07 19:29:57 |
| R6.htm | 11211 | 2017-11-07 19:29:57 |
| R60.htm | 25560 | 2017-11-07 19:29:57 |
| R61.htm | 7248 | 2017-11-07 19:29:57 |
| R62.htm | 24386 | 2017-11-07 19:29:57 |
| R63.htm | 24388 | 2017-11-07 19:29:57 |
| R64.htm | 52916 | 2017-11-07 19:29:57 |
| R65.htm | 26298 | 2017-11-07 19:29:57 |
| R66.htm | 23908 | 2017-11-07 19:29:57 |
| R67.htm | 55244 | 2017-11-07 19:29:57 |
| R68.htm | 29647 | 2017-11-07 19:29:57 |
| R69.htm | 10769 | 2017-11-07 19:29:57 |
| R7.htm | 60404 | 2017-11-07 19:29:57 |
| R8.htm | 110324 | 2017-11-07 19:29:57 |
| R9.htm | 10028 | 2017-11-07 19:29:57 |
| report.css | 2767 | 2017-11-07 19:29:57 |
| Show.js | 1410 | 2017-11-07 19:29:57 |