Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000887343-18-000143-index-headers.html | 2018-08-07 17:30:17 | |
| 0000887343-18-000143-index.html | 2018-08-07 17:30:17 | |
| 0000887343-18-000143.txt | 2018-08-07 17:30:17 | |
 0000887343-18-000143-xbrl.zip | 418357 | 2018-08-07 17:30:17 |
| colb-20180630.xml | 7410987 | 2018-08-07 17:30:17 |
| colb-20180630.xsd | 78496 | 2018-08-07 17:30:17 |
| colb-20180630_cal.xml | 113192 | 2018-08-07 17:30:17 |
| colb-20180630_def.xml | 589223 | 2018-08-07 17:30:17 |
| colb-20180630_lab.xml | 955324 | 2018-08-07 17:30:17 |
| colb-20180630_pre.xml | 668828 | 2018-08-07 17:30:17 |
| colb2q2018ex101dowchangeof.htm | 36037 | 2018-08-07 17:30:17 |
| colb2q2018ex103sigristchan.htm | 35527 | 2018-08-07 17:30:17 |
| colb2q2018ex104dowofferlet.htm | 27828 | 2018-08-07 17:30:17 |
| colb2q2018ex311.htm | 12406 | 2018-08-07 17:30:17 |
| colb2q2018ex312.htm | 12380 | 2018-08-07 17:30:17 |
| colb2q2018ex32.htm | 8211 | 2018-08-07 17:30:17 |
| colb2q2018form10-q.htm | 3904132 | 2018-08-07 17:30:17 |
| FilingSummary.xml | 48214 | 2018-08-07 17:30:17 |
| Financial_Report.xlsx | 121750 | 2018-08-07 17:30:17 |
| R1.htm | 20725 | 2018-08-07 17:30:17 |
| R10.htm | 14553 | 2018-08-07 17:30:17 |
| R11.htm | 93802 | 2018-08-07 17:30:17 |
| R12.htm | 173140 | 2018-08-07 17:30:17 |
| R13.htm | 791415 | 2018-08-07 17:30:17 |
| R14.htm | 834253 | 2018-08-07 17:30:17 |
| R15.htm | 35417 | 2018-08-07 17:30:17 |
| R16.htm | 60605 | 2018-08-07 17:30:17 |
| R17.htm | 6100 | 2018-08-07 17:30:17 |
| R18.htm | 5087 | 2018-08-07 17:30:17 |
| R19.htm | 97927 | 2018-08-07 17:30:17 |
| R2.htm | 91069 | 2018-08-07 17:30:17 |
| R20.htm | 9079 | 2018-08-07 17:30:17 |
| R21.htm | 7694 | 2018-08-07 17:30:17 |
| R22.htm | 131068 | 2018-08-07 17:30:17 |
| R23.htm | 301936 | 2018-08-07 17:30:17 |
| R24.htm | 64968 | 2018-08-07 17:30:17 |
| R25.htm | 31458 | 2018-08-07 17:30:17 |
| R26.htm | 95985 | 2018-08-07 17:30:17 |
| R27.htm | 175155 | 2018-08-07 17:30:17 |
| R28.htm | 795539 | 2018-08-07 17:30:17 |
| R29.htm | 835184 | 2018-08-07 17:30:17 |
| R3.htm | 5106 | 2018-08-07 17:30:17 |
| R30.htm | 32150 | 2018-08-07 17:30:17 |
| R31.htm | 61637 | 2018-08-07 17:30:17 |
| R32.htm | 108261 | 2018-08-07 17:30:17 |
| R33.htm | 133139 | 2018-08-07 17:30:17 |
| R34.htm | 298886 | 2018-08-07 17:30:17 |
| R35.htm | 64652 | 2018-08-07 17:30:17 |
| R36.htm | 24557 | 2018-08-07 17:30:17 |
| R37.htm | 10570 | 2018-08-07 17:30:17 |
| R38.htm | 87976 | 2018-08-07 17:30:17 |
| R39.htm | 32038 | 2018-08-07 17:30:17 |
| R4.htm | 108027 | 2018-08-07 17:30:17 |
| R40.htm | 28319 | 2018-08-07 17:30:17 |
| R41.htm | 10880 | 2018-08-07 17:30:17 |
| R42.htm | 31232 | 2018-08-07 17:30:17 |
| R43.htm | 24454 | 2018-08-07 17:30:17 |
| R44.htm | 14661 | 2018-08-07 17:30:17 |
| R45.htm | 19384 | 2018-08-07 17:30:17 |
| R46.htm | 98277 | 2018-08-07 17:30:17 |
| R47.htm | 29822 | 2018-08-07 17:30:17 |
| R48.htm | 107763 | 2018-08-07 17:30:17 |
| R49.htm | 106141 | 2018-08-07 17:30:17 |
| R5.htm | 32175 | 2018-08-07 17:30:17 |
| R50.htm | 33578 | 2018-08-07 17:30:17 |
| R51.htm | 15173 | 2018-08-07 17:30:17 |
| R52.htm | 5762 | 2018-08-07 17:30:17 |
| R53.htm | 80570 | 2018-08-07 17:30:17 |
| R54.htm | 7423 | 2018-08-07 17:30:17 |
| R55.htm | 304711 | 2018-08-07 17:30:17 |
| R56.htm | 17999 | 2018-08-07 17:30:17 |
| R57.htm | 32765 | 2018-08-07 17:30:17 |
| R58.htm | 13441 | 2018-08-07 17:30:17 |
| R59.htm | 10430 | 2018-08-07 17:30:17 |
| R6.htm | 11194 | 2018-08-07 17:30:17 |
| R60.htm | 11200 | 2018-08-07 17:30:17 |
| R61.htm | 39160 | 2018-08-07 17:30:17 |
| R62.htm | 54479 | 2018-08-07 17:30:17 |
| R63.htm | 10501 | 2018-08-07 17:30:17 |
| R64.htm | 6896 | 2018-08-07 17:30:17 |
| R65.htm | 38466 | 2018-08-07 17:30:17 |
| R66.htm | 24879 | 2018-08-07 17:30:17 |
| R67.htm | 48540 | 2018-08-07 17:30:17 |
| R68.htm | 26529 | 2018-08-07 17:30:17 |
| R69.htm | 28946 | 2018-08-07 17:30:17 |
| R7.htm | 59836 | 2018-08-07 17:30:17 |
| R70.htm | 62052 | 2018-08-07 17:30:17 |
| R71.htm | 32481 | 2018-08-07 17:30:17 |
| R72.htm | 16485 | 2018-08-07 17:30:17 |
| R8.htm | 114600 | 2018-08-07 17:30:17 |
| R9.htm | 8937 | 2018-08-07 17:30:17 |
| report.css | 2767 | 2018-08-07 17:30:17 |
| Show.js | 1410 | 2018-08-07 17:30:17 |