Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000868671-21-000004-index-headers.html | 2021-01-28 16:38:45 | |
| 0000868671-21-000004-index.html | 2021-01-28 16:38:45 | |
| 0000868671-21-000004.txt | 2021-01-28 16:38:45 | |
 0000868671-21-000004-xbrl.zip | 69608 | 2021-01-28 16:38:45 |
| FilingSummary.xml | 1738 | 2021-01-28 16:38:45 |
| Financial_Report.xlsx | 5437 | 2021-01-28 16:38:45 |
| gbci-12312020xex991.htm | 1342907 | 2021-01-28 16:38:45 |
| gbci-20210128.htm | 32997 | 2021-01-28 16:38:45 |
| gbci-20210128.xsd | 2454 | 2021-01-28 16:38:45 |
| gbci-20210128_cal.xml | 734 | 2021-01-28 16:38:45 |
| gbci-20210128_def.xml | 1671 | 2021-01-28 16:38:45 |
| gbci-20210128_htm.xml | 10869 | 2021-01-28 16:38:45 |
| gbci-20210128_lab.xml | 24270 | 2021-01-28 16:38:45 |
| gbci-20210128_pre.xml | 12670 | 2021-01-28 16:38:45 |
 gbci_logoxstatesxmayx20191.jpg | 115986 | 2021-01-28 16:38:45 |
| MetaLinks.json | 17496 | 2021-01-28 16:38:45 |
| R1.htm | 38600 | 2021-01-28 16:38:45 |
| report.css | 2767 | 2021-01-28 16:38:45 |
| Show.js | 1085 | 2021-01-28 16:38:45 |