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| 0001558370-22-016191.txt | 2022-11-03 13:18:31 | |
 0001558370-22-016191-xbrl.zip | 12980 | 2022-11-03 13:18:31 |
| FilingSummary.xml | 1732 | 2022-11-03 13:18:31 |
| Financial_Report.xlsx | 5690 | 2022-11-03 13:18:31 |
| iboc-20221103.xsd | 3117 | 2022-11-03 13:18:31 |
| iboc-20221103x8k.htm | 44260 | 2022-11-03 13:18:31 |
| iboc-20221103x8k_htm.xml | 4604 | 2022-11-03 13:18:31 |
| iboc-20221103xex99.htm | 16900 | 2022-11-03 13:18:31 |
| iboc-20221103_lab.xml | 15255 | 2022-11-03 13:18:31 |
| iboc-20221103_pre.xml | 10030 | 2022-11-03 13:18:31 |
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| R1.htm | 38114 | 2022-11-03 13:18:31 |
| report.css | 2767 | 2022-11-03 13:18:31 |
| Show.js | 1084 | 2022-11-03 13:18:31 |