Parent Directory| Name | Size | Last Modified |
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 0000868671-20-000077-index-headers.html | 2020-10-22 16:39:13 | |
| 0000868671-20-000077-index.html | 2020-10-22 16:39:13 | |
| 0000868671-20-000077.txt | 2020-10-22 16:39:13 | |
 0000868671-20-000077-xbrl.zip | 78353 | 2020-10-22 16:39:13 |
| FilingSummary.xml | 1738 | 2020-10-22 16:39:13 |
| Financial_Report.xlsx | 5458 | 2020-10-22 16:39:13 |
| gbci-09302020xex991.htm | 1947272 | 2020-10-22 16:39:13 |
| gbci-20201022.htm | 39945 | 2020-10-22 16:39:13 |
| gbci-20201022.xsd | 2454 | 2020-10-22 16:39:13 |
| gbci-20201022_cal.xml | 734 | 2020-10-22 16:39:13 |
| gbci-20201022_def.xml | 1671 | 2020-10-22 16:39:13 |
| gbci-20201022_htm.xml | 11194 | 2020-10-22 16:39:13 |
| gbci-20201022_lab.xml | 24270 | 2020-10-22 16:39:13 |
| gbci-20201022_pre.xml | 12670 | 2020-10-22 16:39:13 |
 gbcilogostatesmay20191.jpg | 115986 | 2020-10-22 16:39:13 |
| MetaLinks.json | 17496 | 2020-10-22 16:39:13 |
| R1.htm | 39634 | 2020-10-22 16:39:13 |
| report.css | 2767 | 2020-10-22 16:39:13 |
| Show.js | 1085 | 2020-10-22 16:39:13 |