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| 0000860413-19-000164-index.html | 2019-11-06 14:01:31 | |
| 0000860413-19-000164.txt | 2019-11-06 14:01:31 | |
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| fibk-20190930xex32.htm | 4721 | 2019-11-06 14:01:31 |
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| Financial_Report.xlsx | 129441 | 2019-11-06 14:01:31 |
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| report.css | 2767 | 2019-11-06 14:01:31 |
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