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|---|---|---|
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| 0000860413-12-000021-index.html | 2012-08-09 14:21:22 | |
| 0000860413-12-000021.txt | 2012-08-09 14:21:22 | |
 0000860413-12-000021-xbrl.zip | 316654 | 2012-08-09 14:21:22 |
| fibk-20120630.xml | 4117089 | 2012-08-09 14:21:22 |
| fibk-20120630.xsd | 52928 | 2012-08-09 14:21:22 |
| fibk-20120630x10q.htm | 2407829 | 2012-08-09 14:21:22 |
| fibk-20120630xex311.htm | 12103 | 2012-08-09 14:21:22 |
| fibk-20120630xex312.htm | 12353 | 2012-08-09 14:21:22 |
| fibk-20120630xex32.htm | 4816 | 2012-08-09 14:21:22 |
| fibk-20120630_cal.xml | 148518 | 2012-08-09 14:21:22 |
| fibk-20120630_def.xml | 380415 | 2012-08-09 14:21:22 |
| fibk-20120630_lab.xml | 816460 | 2012-08-09 14:21:22 |
| fibk-20120630_pre.xml | 476051 | 2012-08-09 14:21:22 |
| FilingSummary.xml | 27086 | 2012-08-09 14:21:22 |
| Financial_Report.xls | 3231942 | 2012-08-09 14:21:22 |
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| report.css | 2721 | 2012-08-09 14:21:22 |
| Show.js | 6423 | 2012-08-09 14:21:22 |