Document Format Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 1 | 8-K | fibk-20211025.htm iXBRL | 8-K | 41153 |
| 2 | EX-99.1 | fibk-20210930x8kpr.htm | EX-99.1 | 659523 |
| 3 | EX-99.2 | oct2021ip.htm | EX-99.2 | 54763 |
| 7 | FIBK LOGO | fibslogo2linea04a.jpg | GRAPHIC | 165531 |
| 8 | GRAPHIC | oct2021ip001.jpg | GRAPHIC | 255797 |
| 9 | GRAPHIC | oct2021ip002.jpg | GRAPHIC | 245440 |
| 10 | GRAPHIC | oct2021ip003.jpg | GRAPHIC | 192496 |
| 11 | GRAPHIC | oct2021ip004.jpg | GRAPHIC | 122906 |
| 12 | GRAPHIC | oct2021ip005.jpg | GRAPHIC | 110954 |
| 13 | GRAPHIC | oct2021ip006.jpg | GRAPHIC | 119466 |
| 14 | GRAPHIC | oct2021ip007.jpg | GRAPHIC | 103569 |
| 15 | GRAPHIC | oct2021ip008.jpg | GRAPHIC | 124370 |
| 16 | GRAPHIC | oct2021ip009.jpg | GRAPHIC | 158407 |
| 17 | GRAPHIC | oct2021ip010.jpg | GRAPHIC | 69056 |
| 18 | GRAPHIC | oct2021ip011.jpg | GRAPHIC | 97776 |
| 19 | GRAPHIC | oct2021ip012.jpg | GRAPHIC | 112378 |
| 20 | GRAPHIC | oct2021ip013.jpg | GRAPHIC | 106846 |
| 21 | GRAPHIC | oct2021ip014.jpg | GRAPHIC | 67716 |
| 22 | GRAPHIC | oct2021ip015.jpg | GRAPHIC | 125973 |
| 23 | GRAPHIC | oct2021ip016.jpg | GRAPHIC | 96268 |
| 24 | GRAPHIC | oct2021ip017.jpg | GRAPHIC | 106321 |
| 25 | GRAPHIC | oct2021ip018.jpg | GRAPHIC | 112217 |
| 26 | GRAPHIC | oct2021ip019.jpg | GRAPHIC | 109116 |
| 27 | GRAPHIC | oct2021ip020.jpg | GRAPHIC | 128420 |
| 28 | GRAPHIC | oct2021ip021.jpg | GRAPHIC | 142476 |
| 29 | GRAPHIC | oct2021ip022.jpg | GRAPHIC | 152867 |
| 30 | GRAPHIC | oct2021ip023.jpg | GRAPHIC | 135438 |
| 31 | GRAPHIC | oct2021ip024.jpg | GRAPHIC | 74000 |
| 32 | GRAPHIC | oct2021ip025.jpg | GRAPHIC | 162264 |
| 33 | GRAPHIC | oct2021ip026.jpg | GRAPHIC | 189511 |
| 34 | GRAPHIC | oct2021ip027.jpg | GRAPHIC | 71958 |
| 35 | GRAPHIC | oct2021ip028.jpg | GRAPHIC | 125803 |
| 36 | GRAPHIC | oct2021ip029.jpg | GRAPHIC | 90546 |
| 37 | GRAPHIC | oct2021ip030.jpg | GRAPHIC | 108698 |
| 38 | GRAPHIC | oct2021ip031.jpg | GRAPHIC | 132617 |
| 39 | GRAPHIC | oct2021ip032.jpg | GRAPHIC | 103933 |
| 40 | GRAPHIC | oct2021ip033.jpg | GRAPHIC | 72129 |
| 41 | GRAPHIC | oct2021ip034.jpg | GRAPHIC | 122898 |
| 42 | GRAPHIC | oct2021ip035.jpg | GRAPHIC | 93303 |
| 43 | GRAPHIC | oct2021ip036.jpg | GRAPHIC | 94901 |
| 44 | GRAPHIC | oct2021ip037.jpg | GRAPHIC | 104983 |
| 45 | GRAPHIC | oct2021ip038.jpg | GRAPHIC | 112193 |
| 46 | GRAPHIC | oct2021ip039.jpg | GRAPHIC | 99899 |
| 47 | GRAPHIC | oct2021ip040.jpg | GRAPHIC | 76287 |
| 48 | GRAPHIC | oct2021ip041.jpg | GRAPHIC | 103917 |
| 49 | GRAPHIC | oct2021ip042.jpg | GRAPHIC | 109655 |
| 50 | GRAPHIC | oct2021ip043.jpg | GRAPHIC | 64248 |
| 51 | GRAPHIC | oct2021ip044.jpg | GRAPHIC | 133153 |
| 52 | GRAPHIC | oct2021ip045.jpg | GRAPHIC | 117140 |
| 53 | GRAPHIC | oct2021ip046.jpg | GRAPHIC | 116046 |
| 54 | GRAPHIC | oct2021ip047.jpg | GRAPHIC | 115484 |
| 55 | GRAPHIC | oct2021ip048.jpg | GRAPHIC | 123970 |
| 56 | GRAPHIC | oct2021ip049.jpg | GRAPHIC | 87944 |
| 57 | GRAPHIC | oct2021ip050.jpg | GRAPHIC | 115716 |
| 58 | GRAPHIC | oct2021ip051.jpg | GRAPHIC | 119405 |
| 59 | GRAPHIC | oct2021ip052.jpg | GRAPHIC | 113457 |
| 60 | GRAPHIC | oct2021ip053.jpg | GRAPHIC | 110258 |
| 61 | GRAPHIC | oct2021ip054.jpg | GRAPHIC | 127162 |
| 62 | GRAPHIC | oct2021ip055.jpg | GRAPHIC | 116171 |
| Complete submission text file | 0000860413-21-000204.txt | 10153593 |
Data Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 4 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | fibk-20211025.xsd | EX-101.SCH | 1902 |
| 5 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | fibk-20211025_lab.xml | EX-101.LAB | 24275 |
| 6 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | fibk-20211025_pre.xml | EX-101.PRE | 12638 |
| 63 | EXTRACTED XBRL INSTANCE DOCUMENT | fibk-20211025_htm.xml | XML | 10901 |
EIN.: 810331430 | State of Incorp.: MT | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-34653 | Film No.: 211348486
SIC: 6022 State Commercial Banks