Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000109380-24-000108-index-headers.html | 2024-05-08 14:10:22 | |
| 0000109380-24-000108-index.html | 2024-05-08 14:10:22 | |
| 0000109380-24-000108.txt | 2024-05-08 14:10:22 | |
 0000109380-24-000108-xbrl.zip | 887536 | 2024-05-08 14:10:22 |
| exh101-2024x26vspplandocxb.htm | 33514 | 2024-05-08 14:10:22 |
| exh311certofceo10-q20240331.htm | 10215 | 2024-05-08 14:10:22 |
| exh312certofcfo10-q20240331.htm | 9975 | 2024-05-08 14:10:22 |
| exh32certofceocfo20240331.htm | 5896 | 2024-05-08 14:10:22 |
| FilingSummary.xml | 58489 | 2024-05-08 14:10:22 |
| Financial_Report.xlsx | 201612 | 2024-05-08 14:10:22 |
 image_0.jpg | 64736 | 2024-05-08 14:10:22 |
| MetaLinks.json | 1231274 | 2024-05-08 14:10:22 |
| R1.htm | 61705 | 2024-05-08 14:10:22 |
| R10.htm | 29514 | 2024-05-08 14:10:22 |
| R11.htm | 138658 | 2024-05-08 14:10:22 |
| R12.htm | 65739 | 2024-05-08 14:10:22 |
| R13.htm | 272373 | 2024-05-08 14:10:22 |
| R14.htm | 1167528 | 2024-05-08 14:10:22 |
| R15.htm | 137577 | 2024-05-08 14:10:22 |
| R16.htm | 182610 | 2024-05-08 14:10:22 |
| R17.htm | 70083 | 2024-05-08 14:10:22 |
| R18.htm | 25846 | 2024-05-08 14:10:22 |
| R19.htm | 145491 | 2024-05-08 14:10:22 |
| R2.htm | 104539 | 2024-05-08 14:10:22 |
| R20.htm | 10663 | 2024-05-08 14:10:22 |
| R21.htm | 34725 | 2024-05-08 14:10:22 |
| R22.htm | 108119 | 2024-05-08 14:10:22 |
| R23.htm | 15068 | 2024-05-08 14:10:22 |
| R24.htm | 8483 | 2024-05-08 14:10:22 |
| R25.htm | 19523 | 2024-05-08 14:10:22 |
| R26.htm | 21103 | 2024-05-08 14:10:22 |
| R27.htm | 137833 | 2024-05-08 14:10:22 |
| R28.htm | 128219 | 2024-05-08 14:10:22 |
| R29.htm | 273964 | 2024-05-08 14:10:22 |
| R3.htm | 18561 | 2024-05-08 14:10:22 |
| R30.htm | 1158249 | 2024-05-08 14:10:22 |
| R31.htm | 141794 | 2024-05-08 14:10:22 |
| R32.htm | 38245 | 2024-05-08 14:10:22 |
| R33.htm | 74869 | 2024-05-08 14:10:22 |
| R34.htm | 16317 | 2024-05-08 14:10:22 |
| R35.htm | 141718 | 2024-05-08 14:10:22 |
| R36.htm | 36674 | 2024-05-08 14:10:22 |
| R37.htm | 102014 | 2024-05-08 14:10:22 |
| R38.htm | 5696 | 2024-05-08 14:10:22 |
| R39.htm | 79039 | 2024-05-08 14:10:22 |
| R4.htm | 120036 | 2024-05-08 14:10:22 |
| R40.htm | 20137 | 2024-05-08 14:10:22 |
| R41.htm | 6545 | 2024-05-08 14:10:22 |
| R42.htm | 13220 | 2024-05-08 14:10:22 |
| R43.htm | 22808 | 2024-05-08 14:10:22 |
| R44.htm | 125691 | 2024-05-08 14:10:22 |
| R45.htm | 9237 | 2024-05-08 14:10:22 |
| R46.htm | 63418 | 2024-05-08 14:10:22 |
| R47.htm | 124735 | 2024-05-08 14:10:22 |
| R48.htm | 53887 | 2024-05-08 14:10:22 |
| R49.htm | 19239 | 2024-05-08 14:10:22 |
| R5.htm | 33498 | 2024-05-08 14:10:22 |
| R50.htm | 16387 | 2024-05-08 14:10:22 |
| R51.htm | 38884 | 2024-05-08 14:10:22 |
| R52.htm | 69541 | 2024-05-08 14:10:22 |
| R53.htm | 6647 | 2024-05-08 14:10:22 |
| R54.htm | 41291 | 2024-05-08 14:10:22 |
| R55.htm | 49919 | 2024-05-08 14:10:22 |
| R56.htm | 36586 | 2024-05-08 14:10:22 |
| R57.htm | 166647 | 2024-05-08 14:10:22 |
| R58.htm | 385114 | 2024-05-08 14:10:22 |
| R59.htm | 385112 | 2024-05-08 14:10:22 |
| R6.htm | 62107 | 2024-05-08 14:10:22 |
| R60.htm | 110601 | 2024-05-08 14:10:22 |
| R61.htm | 36418 | 2024-05-08 14:10:22 |
| R62.htm | 66193 | 2024-05-08 14:10:22 |
| R63.htm | 25961 | 2024-05-08 14:10:22 |
| R64.htm | 35370 | 2024-05-08 14:10:22 |
| R65.htm | 65490 | 2024-05-08 14:10:22 |
| R66.htm | 32704 | 2024-05-08 14:10:22 |
| R67.htm | 13924 | 2024-05-08 14:10:22 |
| R68.htm | 14634 | 2024-05-08 14:10:22 |
| R69.htm | 17470 | 2024-05-08 14:10:22 |
| R7.htm | 4469 | 2024-05-08 14:10:22 |
| R70.htm | 22650 | 2024-05-08 14:10:22 |
| R71.htm | 19058 | 2024-05-08 14:10:22 |
| R72.htm | 10506 | 2024-05-08 14:10:22 |
| R73.htm | 15833 | 2024-05-08 14:10:22 |
| R74.htm | 11148 | 2024-05-08 14:10:22 |
| R75.htm | 24929 | 2024-05-08 14:10:22 |
| R76.htm | 32923 | 2024-05-08 14:10:22 |
| R77.htm | 30505 | 2024-05-08 14:10:22 |
| R78.htm | 14995 | 2024-05-08 14:10:22 |
| R79.htm | 11120 | 2024-05-08 14:10:22 |
| R8.htm | 92298 | 2024-05-08 14:10:22 |
| R80.htm | 130039 | 2024-05-08 14:10:22 |
| R81.htm | 6548 | 2024-05-08 14:10:22 |
| R82.htm | 50025 | 2024-05-08 14:10:22 |
| R83.htm | 9248 | 2024-05-08 14:10:22 |
| R84.htm | 77291 | 2024-05-08 14:10:22 |
| R9.htm | 8475 | 2024-05-08 14:10:22 |
| report.css | 2768 | 2024-05-08 14:10:22 |
| Show.js | 1086 | 2024-05-08 14:10:22 |
| zions-20240331.htm | 5086903 | 2024-05-08 14:10:22 |
| zions-20240331.xsd | 83223 | 2024-05-08 14:10:22 |
| zions-20240331_cal.xml | 200933 | 2024-05-08 14:10:22 |
| zions-20240331_def.xml | 534268 | 2024-05-08 14:10:22 |
 zions-20240331_g1.jpg | 17344 | 2024-05-08 14:10:22 |
 zions-20240331_g10.jpg | 74661 | 2024-05-08 14:10:22 |
 zions-20240331_g11.jpg | 63186 | 2024-05-08 14:10:22 |
 zions-20240331_g2.jpg | 18701 | 2024-05-08 14:10:22 |
 zions-20240331_g3.jpg | 18170 | 2024-05-08 14:10:22 |
 zions-20240331_g4.jpg | 19896 | 2024-05-08 14:10:22 |
 zions-20240331_g5.jpg | 71962 | 2024-05-08 14:10:22 |
 zions-20240331_g6.jpg | 60041 | 2024-05-08 14:10:22 |
 zions-20240331_g7.jpg | 66467 | 2024-05-08 14:10:22 |
 zions-20240331_g8.jpg | 58139 | 2024-05-08 14:10:22 |
 zions-20240331_g9.jpg | 67779 | 2024-05-08 14:10:22 |
| zions-20240331_htm.xml | 6516203 | 2024-05-08 14:10:22 |
| zions-20240331_lab.xml | 1001422 | 2024-05-08 14:10:22 |
| zions-20240331_pre.xml | 828314 | 2024-05-08 14:10:22 |