Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-15-076649-index-headers.html | 2015-11-06 14:53:58 | |
| 0001104659-15-076649-index.html | 2015-11-06 14:53:58 | |
| 0001104659-15-076649.txt | 2015-11-06 14:53:58 | |
 0001104659-15-076649-xbrl.zip | 195842 | 2015-11-06 14:53:58 |
| a15-17901_110q.htm | 2118760 | 2015-11-06 14:53:58 |
| a15-17901_1ex31da.htm | 11188 | 2015-11-06 14:53:58 |
| a15-17901_1ex31db.htm | 11139 | 2015-11-06 14:53:58 |
| a15-17901_1ex32da.htm | 8351 | 2015-11-06 14:53:58 |
| a15-17901_1ex32db.htm | 7762 | 2015-11-06 14:53:58 |
| FilingSummary.xml | 29491 | 2015-11-06 14:53:58 |
| Financial_Report.xlsx | 75014 | 2015-11-06 14:53:58 |
| iboc-20150930.xml | 3768204 | 2015-11-06 14:53:58 |
| iboc-20150930.xsd | 44711 | 2015-11-06 14:53:58 |
| iboc-20150930_cal.xml | 77870 | 2015-11-06 14:53:58 |
| iboc-20150930_def.xml | 182626 | 2015-11-06 14:53:58 |
| iboc-20150930_lab.xml | 533352 | 2015-11-06 14:53:58 |
| iboc-20150930_pre.xml | 383094 | 2015-11-06 14:53:58 |
| R1.htm | 22381 | 2015-11-06 14:53:58 |
| R10.htm | 170089 | 2015-11-06 14:53:58 |
| R11.htm | 27559 | 2015-11-06 14:53:58 |
| R12.htm | 904028 | 2015-11-06 14:53:58 |
| R13.htm | 40280 | 2015-11-06 14:53:58 |
| R14.htm | 250567 | 2015-11-06 14:53:58 |
| R15.htm | 7307 | 2015-11-06 14:53:58 |
| R16.htm | 50063 | 2015-11-06 14:53:58 |
| R17.htm | 15936 | 2015-11-06 14:53:58 |
| R18.htm | 7546 | 2015-11-06 14:53:58 |
| R19.htm | 16543 | 2015-11-06 14:53:58 |
| R2.htm | 93849 | 2015-11-06 14:53:58 |
| R20.htm | 144201 | 2015-11-06 14:53:58 |
| R21.htm | 24952 | 2015-11-06 14:53:58 |
| R22.htm | 901216 | 2015-11-06 14:53:58 |
| R23.htm | 36328 | 2015-11-06 14:53:58 |
| R24.htm | 247753 | 2015-11-06 14:53:58 |
| R25.htm | 44667 | 2015-11-06 14:53:58 |
| R26.htm | 6202 | 2015-11-06 14:53:58 |
| R27.htm | 30327 | 2015-11-06 14:53:58 |
| R28.htm | 15101 | 2015-11-06 14:53:58 |
| R29.htm | 48771 | 2015-11-06 14:53:58 |
| R3.htm | 19995 | 2015-11-06 14:53:58 |
| R30.htm | 29875 | 2015-11-06 14:53:58 |
| R31.htm | 16210 | 2015-11-06 14:53:58 |
| R32.htm | 52852 | 2015-11-06 14:53:58 |
| R33.htm | 37750 | 2015-11-06 14:53:58 |
| R34.htm | 22774 | 2015-11-06 14:53:58 |
| R35.htm | 100130 | 2015-11-06 14:53:58 |
| R36.htm | 52003 | 2015-11-06 14:53:58 |
| R37.htm | 71423 | 2015-11-06 14:53:58 |
| R38.htm | 71931 | 2015-11-06 14:53:58 |
| R39.htm | 50231 | 2015-11-06 14:53:58 |
| R4.htm | 120071 | 2015-11-06 14:53:58 |
| R40.htm | 64821 | 2015-11-06 14:53:58 |
| R41.htm | 30412 | 2015-11-06 14:53:58 |
| R42.htm | 12028 | 2015-11-06 14:53:58 |
| R43.htm | 6419 | 2015-11-06 14:53:58 |
| R44.htm | 31896 | 2015-11-06 14:53:58 |
| R45.htm | 33774 | 2015-11-06 14:53:58 |
| R46.htm | 27093 | 2015-11-06 14:53:58 |
| R47.htm | 25875 | 2015-11-06 14:53:58 |
| R5.htm | 7850 | 2015-11-06 14:53:58 |
| R6.htm | 24054 | 2015-11-06 14:53:58 |
| R7.htm | 10813 | 2015-11-06 14:53:58 |
| R8.htm | 129205 | 2015-11-06 14:53:58 |
| R9.htm | 8424 | 2015-11-06 14:53:58 |
| report.css | 2767 | 2015-11-06 14:53:58 |
| Show.js | 1410 | 2015-11-06 14:53:58 |