Document Format Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 1 | 8-K | fibk-20200430x8k.htm iXBRL | 8-K | 50574 |
| 2 | EXHIBIT 99.1 | april2020ip.htm | EX-99.1 | 161031 |
| 8 | april2020ip001.jpg | GRAPHIC | 259127 | |
| 9 | april2020ip002.jpg | GRAPHIC | 264929 | |
| 10 | april2020ip003.jpg | GRAPHIC | 126739 | |
| 11 | april2020ip004.jpg | GRAPHIC | 122625 | |
| 12 | april2020ip005.jpg | GRAPHIC | 141626 | |
| 13 | april2020ip006.jpg | GRAPHIC | 120902 | |
| 14 | april2020ip007.jpg | GRAPHIC | 134760 | |
| 15 | april2020ip008.jpg | GRAPHIC | 129333 | |
| 16 | april2020ip009.jpg | GRAPHIC | 119375 | |
| 17 | april2020ip010.jpg | GRAPHIC | 78746 | |
| 18 | april2020ip011.jpg | GRAPHIC | 126380 | |
| 19 | april2020ip012.jpg | GRAPHIC | 115416 | |
| 20 | april2020ip013.jpg | GRAPHIC | 116509 | |
| 21 | april2020ip014.jpg | GRAPHIC | 73921 | |
| 22 | april2020ip015.jpg | GRAPHIC | 144807 | |
| 23 | april2020ip016.jpg | GRAPHIC | 123573 | |
| 24 | april2020ip017.jpg | GRAPHIC | 160295 | |
| 25 | april2020ip018.jpg | GRAPHIC | 73580 | |
| 26 | april2020ip019.jpg | GRAPHIC | 96594 | |
| 27 | april2020ip020.jpg | GRAPHIC | 111518 | |
| 28 | april2020ip021.jpg | GRAPHIC | 106890 | |
| 29 | april2020ip022.jpg | GRAPHIC | 102795 | |
| 30 | april2020ip023.jpg | GRAPHIC | 104992 | |
| 31 | april2020ip024.jpg | GRAPHIC | 72542 | |
| 32 | april2020ip025.jpg | GRAPHIC | 127350 | |
| 33 | april2020ip026.jpg | GRAPHIC | 99737 | |
| 34 | april2020ip027.jpg | GRAPHIC | 111438 | |
| 35 | april2020ip028.jpg | GRAPHIC | 116335 | |
| 36 | april2020ip029.jpg | GRAPHIC | 136900 | |
| 37 | april2020ip030.jpg | GRAPHIC | 125331 | |
| 38 | april2020ip031.jpg | GRAPHIC | 127878 | |
| 39 | april2020ip032.jpg | GRAPHIC | 118940 | |
| 40 | april2020ip033.jpg | GRAPHIC | 119938 | |
| 41 | april2020ip034.jpg | GRAPHIC | 120902 | |
| 42 | april2020ip035.jpg | GRAPHIC | 90465 | |
| 43 | april2020ip036.jpg | GRAPHIC | 111910 | |
| 44 | april2020ip037.jpg | GRAPHIC | 129406 | |
| 45 | april2020ip038.jpg | GRAPHIC | 116084 | |
| 46 | april2020ip039.jpg | GRAPHIC | 118947 | |
| 47 | april2020ip040.jpg | GRAPHIC | 131256 | |
| 48 | april2020ip041.jpg | GRAPHIC | 118083 | |
| 49 | april2020ip042.jpg | GRAPHIC | 116935 | |
| 50 | april2020ip043.jpg | GRAPHIC | 77588 | |
| 51 | april2020ip044.jpg | GRAPHIC | 148039 | |
| 52 | april2020ip045.jpg | GRAPHIC | 141485 | |
| 53 | april2020ip046.jpg | GRAPHIC | 73672 | |
| 54 | april2020ip047.jpg | GRAPHIC | 121057 | |
| 55 | april2020ip048.jpg | GRAPHIC | 73628 | |
| 56 | april2020ip049.jpg | GRAPHIC | 98775 | |
| 57 | april2020ip050.jpg | GRAPHIC | 117944 | |
| 58 | april2020ip051.jpg | GRAPHIC | 103290 | |
| 59 | april2020ip052.jpg | GRAPHIC | 79479 | |
| 60 | april2020ip053.jpg | GRAPHIC | 104508 | |
| 61 | april2020ip054.jpg | GRAPHIC | 106933 | |
| 62 | april2020ip055.jpg | GRAPHIC | 68299 | |
| 63 | april2020ip056.jpg | GRAPHIC | 164785 | |
| 64 | april2020ip057.jpg | GRAPHIC | 171305 | |
| 65 | april2020ip058.jpg | GRAPHIC | 169210 | |
| 66 | april2020ip059.jpg | GRAPHIC | 176613 | |
| 67 | april2020ip060.jpg | GRAPHIC | 171187 | |
| 68 | april2020ip061.jpg | GRAPHIC | 177502 | |
| 69 | april2020ip062.jpg | GRAPHIC | 174592 | |
| Complete submission text file | 0000860413-20-000118.txt | 10979461 |
Data Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 3 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | fibk-20200430.xsd | EX-101.SCH | 4419 |
| 4 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | fibk-20200430_cal.xml | EX-101.CAL | 600 |
| 5 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | fibk-20200430_def.xml | EX-101.DEF | 1450 |
| 6 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | fibk-20200430_lab.xml | EX-101.LAB | 26142 |
| 7 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | fibk-20200430_pre.xml | EX-101.PRE | 13556 |
| 76 | EXTRACTED XBRL INSTANCE DOCUMENT | fibk-20200430x8k_htm.xml | XML | 4321 |
IRS No.: 810331430 | State of Incorp.: MT | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 001-34653 | Film No.: 20836567
SIC: 6022 State Commercial Banks
