Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000868671-23-000045-index-headers.html | 2023-02-24 16:41:37 | |
| 0000868671-23-000045-index.html | 2023-02-24 16:41:37 | |
| 0000868671-23-000045.txt | 2023-02-24 16:41:37 | |
 0000868671-23-000045-xbrl.zip | 774116 | 2023-02-24 16:41:37 |
| FilingSummary.xml | 72656 | 2023-02-24 16:41:37 |
| Financial_Report.xlsx | 222144 | 2023-02-24 16:41:37 |
| gbci-12312022xex23.htm | 3947 | 2023-02-24 16:41:37 |
| gbci-12312022xex311.htm | 10120 | 2023-02-24 16:41:37 |
| gbci-12312022xex312.htm | 10117 | 2023-02-24 16:41:37 |
| gbci-12312022xex32.htm | 6890 | 2023-02-24 16:41:37 |
| gbci-20221231.htm | 5417476 | 2023-02-24 16:41:37 |
| gbci-20221231.xsd | 102757 | 2023-02-24 16:41:37 |
| gbci-20221231_cal.xml | 224116 | 2023-02-24 16:41:37 |
| gbci-20221231_def.xml | 515375 | 2023-02-24 16:41:37 |
 gbci-20221231_g1.jpg | 123663 | 2023-02-24 16:41:37 |
| gbci-20221231_htm.xml | 4969969 | 2023-02-24 16:41:37 |
| gbci-20221231_lab.xml | 1365214 | 2023-02-24 16:41:37 |
| gbci-20221231_pre.xml | 913783 | 2023-02-24 16:41:37 |
| MetaLinks.json | 1443815 | 2023-02-24 16:41:37 |
| R1.htm | 62346 | 2023-02-24 16:41:37 |
| R10.htm | 103697 | 2023-02-24 16:41:37 |
| R100.htm | 44753 | 2023-02-24 16:41:37 |
| R101.htm | 14305 | 2023-02-24 16:41:37 |
| R102.htm | 33671 | 2023-02-24 16:41:37 |
| R103.htm | 39343 | 2023-02-24 16:41:37 |
| R104.htm | 69294 | 2023-02-24 16:41:37 |
| R105.htm | 61308 | 2023-02-24 16:41:37 |
| R106.htm | 74146 | 2023-02-24 16:41:37 |
| R107.htm | 57926 | 2023-02-24 16:41:37 |
| R108.htm | 10525 | 2023-02-24 16:41:37 |
| R109.htm | 76284 | 2023-02-24 16:41:37 |
| R11.htm | 171731 | 2023-02-24 16:41:37 |
| R110.htm | 14899 | 2023-02-24 16:41:37 |
| R111.htm | 29104 | 2023-02-24 16:41:37 |
| R112.htm | 39298 | 2023-02-24 16:41:37 |
| R113.htm | 8512 | 2023-02-24 16:41:37 |
| R114.htm | 41670 | 2023-02-24 16:41:37 |
| R115.htm | 23391 | 2023-02-24 16:41:37 |
| R116.htm | 7112 | 2023-02-24 16:41:37 |
| R12.htm | 441086 | 2023-02-24 16:41:37 |
| R13.htm | 68647 | 2023-02-24 16:41:37 |
| R14.htm | 28996 | 2023-02-24 16:41:37 |
| R15.htm | 24804 | 2023-02-24 16:41:37 |
| R16.htm | 37528 | 2023-02-24 16:41:37 |
| R17.htm | 12621 | 2023-02-24 16:41:37 |
| R18.htm | 17908 | 2023-02-24 16:41:37 |
| R19.htm | 33655 | 2023-02-24 16:41:37 |
| R2.htm | 7816 | 2023-02-24 16:41:37 |
| R20.htm | 15160 | 2023-02-24 16:41:37 |
| R21.htm | 74823 | 2023-02-24 16:41:37 |
| R22.htm | 16043 | 2023-02-24 16:41:37 |
| R23.htm | 15361 | 2023-02-24 16:41:37 |
| R24.htm | 30289 | 2023-02-24 16:41:37 |
| R25.htm | 68210 | 2023-02-24 16:41:37 |
| R26.htm | 32130 | 2023-02-24 16:41:37 |
| R27.htm | 20798 | 2023-02-24 16:41:37 |
| R28.htm | 83912 | 2023-02-24 16:41:37 |
| R29.htm | 59542 | 2023-02-24 16:41:37 |
| R3.htm | 111371 | 2023-02-24 16:41:37 |
| R30.htm | 172215 | 2023-02-24 16:41:37 |
| R31.htm | 12244 | 2023-02-24 16:41:37 |
| R32.htm | 31598 | 2023-02-24 16:41:37 |
| R33.htm | 155438 | 2023-02-24 16:41:37 |
| R34.htm | 77457 | 2023-02-24 16:41:37 |
| R35.htm | 168641 | 2023-02-24 16:41:37 |
| R36.htm | 449706 | 2023-02-24 16:41:37 |
| R37.htm | 73609 | 2023-02-24 16:41:37 |
| R38.htm | 32330 | 2023-02-24 16:41:37 |
| R39.htm | 18332 | 2023-02-24 16:41:37 |
| R4.htm | 15071 | 2023-02-24 16:41:37 |
| R40.htm | 36041 | 2023-02-24 16:41:37 |
| R41.htm | 10157 | 2023-02-24 16:41:37 |
| R42.htm | 12138 | 2023-02-24 16:41:37 |
| R43.htm | 27738 | 2023-02-24 16:41:37 |
| R44.htm | 10972 | 2023-02-24 16:41:37 |
| R45.htm | 69887 | 2023-02-24 16:41:37 |
| R46.htm | 11317 | 2023-02-24 16:41:37 |
| R47.htm | 30741 | 2023-02-24 16:41:37 |
| R48.htm | 70092 | 2023-02-24 16:41:37 |
| R49.htm | 31588 | 2023-02-24 16:41:37 |
| R5.htm | 109019 | 2023-02-24 16:41:37 |
| R50.htm | 19758 | 2023-02-24 16:41:37 |
| R51.htm | 87344 | 2023-02-24 16:41:37 |
| R52.htm | 59280 | 2023-02-24 16:41:37 |
| R53.htm | 163594 | 2023-02-24 16:41:37 |
| R54.htm | 9525 | 2023-02-24 16:41:37 |
| R55.htm | 29195 | 2023-02-24 16:41:37 |
| R56.htm | 53144 | 2023-02-24 16:41:37 |
| R57.htm | 11605 | 2023-02-24 16:41:37 |
| R58.htm | 54499 | 2023-02-24 16:41:37 |
| R59.htm | 72717 | 2023-02-24 16:41:37 |
| R6.htm | 51441 | 2023-02-24 16:41:37 |
| R60.htm | 15647 | 2023-02-24 16:41:37 |
| R61.htm | 25176 | 2023-02-24 16:41:37 |
| R62.htm | 47168 | 2023-02-24 16:41:37 |
| R63.htm | 20988 | 2023-02-24 16:41:37 |
| R64.htm | 28877 | 2023-02-24 16:41:37 |
| R65.htm | 43595 | 2023-02-24 16:41:37 |
| R66.htm | 39671 | 2023-02-24 16:41:37 |
| R67.htm | 60640 | 2023-02-24 16:41:37 |
| R68.htm | 44268 | 2023-02-24 16:41:37 |
| R69.htm | 35648 | 2023-02-24 16:41:37 |
| R7.htm | 56049 | 2023-02-24 16:41:37 |
| R70.htm | 64144 | 2023-02-24 16:41:37 |
| R71.htm | 71750 | 2023-02-24 16:41:37 |
| R72.htm | 21501 | 2023-02-24 16:41:37 |
| R73.htm | 32328 | 2023-02-24 16:41:37 |
| R74.htm | 52482 | 2023-02-24 16:41:37 |
| R75.htm | 18175 | 2023-02-24 16:41:37 |
| R76.htm | 9135 | 2023-02-24 16:41:37 |
| R77.htm | 27645 | 2023-02-24 16:41:37 |
| R78.htm | 9686 | 2023-02-24 16:41:37 |
| R79.htm | 9271 | 2023-02-24 16:41:37 |
| R8.htm | 4613 | 2023-02-24 16:41:37 |
| R80.htm | 16908 | 2023-02-24 16:41:37 |
| R81.htm | 15572 | 2023-02-24 16:41:37 |
| R82.htm | 37628 | 2023-02-24 16:41:37 |
| R83.htm | 15445 | 2023-02-24 16:41:37 |
| R84.htm | 7830 | 2023-02-24 16:41:37 |
| R85.htm | 11411 | 2023-02-24 16:41:37 |
| R86.htm | 16481 | 2023-02-24 16:41:37 |
| R87.htm | 21888 | 2023-02-24 16:41:37 |
| R88.htm | 9659 | 2023-02-24 16:41:37 |
| R89.htm | 35634 | 2023-02-24 16:41:37 |
| R9.htm | 154546 | 2023-02-24 16:41:37 |
| R90.htm | 7769 | 2023-02-24 16:41:37 |
| R91.htm | 32246 | 2023-02-24 16:41:37 |
| R92.htm | 11616 | 2023-02-24 16:41:37 |
| R93.htm | 67402 | 2023-02-24 16:41:37 |
| R94.htm | 26443 | 2023-02-24 16:41:37 |
| R95.htm | 24980 | 2023-02-24 16:41:37 |
| R96.htm | 46153 | 2023-02-24 16:41:37 |
| R97.htm | 31221 | 2023-02-24 16:41:37 |
| R98.htm | 31951 | 2023-02-24 16:41:37 |
| R99.htm | 17486 | 2023-02-24 16:41:37 |
| report.css | 2768 | 2023-02-24 16:41:37 |
| Show.js | 1086 | 2023-02-24 16:41:37 |