Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001015328-24-000187-index-headers.html | 2024-08-08 17:10:31 | |
| 0001015328-24-000187-index.html | 2024-08-08 17:10:31 | |
| 0001015328-24-000187.txt | 2024-08-08 17:10:31 | |
 0001015328-24-000187-xbrl.zip | 568161 | 2024-08-08 17:10:31 |
| exhibit3112024q2.htm | 9568 | 2024-08-08 17:10:31 |
| exhibit3122024q2.htm | 9673 | 2024-08-08 17:10:31 |
| exhibit3212024q2.htm | 6246 | 2024-08-08 17:10:31 |
| FilingSummary.xml | 59551 | 2024-08-08 17:10:31 |
| Financial_Report.xlsx | 235820 | 2024-08-08 17:10:31 |
| MetaLinks.json | 1502333 | 2024-08-08 17:10:31 |
| R1.htm | 58895 | 2024-08-08 17:10:31 |
| R10.htm | 17357 | 2024-08-08 17:10:31 |
| R11.htm | 5450 | 2024-08-08 17:10:31 |
| R12.htm | 6047 | 2024-08-08 17:10:31 |
| R13.htm | 275004 | 2024-08-08 17:10:31 |
| R14.htm | 39787 | 2024-08-08 17:10:31 |
| R15.htm | 936507 | 2024-08-08 17:10:31 |
| R16.htm | 66139 | 2024-08-08 17:10:31 |
| R17.htm | 37855 | 2024-08-08 17:10:31 |
| R18.htm | 34584 | 2024-08-08 17:10:31 |
| R19.htm | 35220 | 2024-08-08 17:10:31 |
| R2.htm | 126773 | 2024-08-08 17:10:31 |
| R20.htm | 48830 | 2024-08-08 17:10:31 |
| R21.htm | 170786 | 2024-08-08 17:10:31 |
| R22.htm | 182702 | 2024-08-08 17:10:31 |
| R23.htm | 341639 | 2024-08-08 17:10:31 |
| R24.htm | 78160 | 2024-08-08 17:10:31 |
| R25.htm | 146753 | 2024-08-08 17:10:31 |
| R26.htm | 5606 | 2024-08-08 17:10:31 |
| R27.htm | 14819 | 2024-08-08 17:10:31 |
| R28.htm | 8483 | 2024-08-08 17:10:31 |
| R29.htm | 18099 | 2024-08-08 17:10:31 |
| R3.htm | 30065 | 2024-08-08 17:10:31 |
| R30.htm | 275199 | 2024-08-08 17:10:31 |
| R31.htm | 37128 | 2024-08-08 17:10:31 |
| R32.htm | 934680 | 2024-08-08 17:10:31 |
| R33.htm | 107713 | 2024-08-08 17:10:31 |
| R34.htm | 28665 | 2024-08-08 17:10:31 |
| R35.htm | 32180 | 2024-08-08 17:10:31 |
| R36.htm | 21647 | 2024-08-08 17:10:31 |
| R37.htm | 48696 | 2024-08-08 17:10:31 |
| R38.htm | 161449 | 2024-08-08 17:10:31 |
| R39.htm | 197399 | 2024-08-08 17:10:31 |
| R4.htm | 145157 | 2024-08-08 17:10:31 |
| R40.htm | 380761 | 2024-08-08 17:10:31 |
| R41.htm | 77886 | 2024-08-08 17:10:31 |
| R42.htm | 143737 | 2024-08-08 17:10:31 |
| R43.htm | 11807 | 2024-08-08 17:10:31 |
| R44.htm | 79983 | 2024-08-08 17:10:31 |
| R45.htm | 16448 | 2024-08-08 17:10:31 |
| R46.htm | 62333 | 2024-08-08 17:10:31 |
| R47.htm | 18761 | 2024-08-08 17:10:31 |
| R48.htm | 70181 | 2024-08-08 17:10:31 |
| R49.htm | 26685 | 2024-08-08 17:10:31 |
| R5.htm | 75012 | 2024-08-08 17:10:31 |
| R50.htm | 9162 | 2024-08-08 17:10:31 |
| R51.htm | 34751 | 2024-08-08 17:10:31 |
| R52.htm | 103038 | 2024-08-08 17:10:31 |
| R53.htm | 314383 | 2024-08-08 17:10:31 |
| R54.htm | 88995 | 2024-08-08 17:10:31 |
| R55.htm | 18356 | 2024-08-08 17:10:31 |
| R56.htm | 113896 | 2024-08-08 17:10:31 |
| R57.htm | 114580 | 2024-08-08 17:10:31 |
| R58.htm | 41711 | 2024-08-08 17:10:31 |
| R59.htm | 23518 | 2024-08-08 17:10:31 |
| R6.htm | 72233 | 2024-08-08 17:10:31 |
| R60.htm | 21824 | 2024-08-08 17:10:31 |
| R61.htm | 33021 | 2024-08-08 17:10:31 |
| R62.htm | 19188 | 2024-08-08 17:10:31 |
| R63.htm | 19145 | 2024-08-08 17:10:31 |
| R64.htm | 30075 | 2024-08-08 17:10:31 |
| R65.htm | 24319 | 2024-08-08 17:10:31 |
| R66.htm | 68262 | 2024-08-08 17:10:31 |
| R67.htm | 62546 | 2024-08-08 17:10:31 |
| R68.htm | 9323 | 2024-08-08 17:10:31 |
| R69.htm | 8616 | 2024-08-08 17:10:31 |
| R7.htm | 8258 | 2024-08-08 17:10:31 |
| R70.htm | 129145 | 2024-08-08 17:10:31 |
| R71.htm | 34562 | 2024-08-08 17:10:31 |
| R72.htm | 60552 | 2024-08-08 17:10:31 |
| R73.htm | 67396 | 2024-08-08 17:10:31 |
| R74.htm | 12733 | 2024-08-08 17:10:31 |
| R75.htm | 22032 | 2024-08-08 17:10:31 |
| R76.htm | 21827 | 2024-08-08 17:10:31 |
| R77.htm | 58745 | 2024-08-08 17:10:31 |
| R78.htm | 140715 | 2024-08-08 17:10:31 |
| R79.htm | 101047 | 2024-08-08 17:10:31 |
| R8.htm | 126062 | 2024-08-08 17:10:31 |
| R80.htm | 51354 | 2024-08-08 17:10:31 |
| R81.htm | 29530 | 2024-08-08 17:10:31 |
| R82.htm | 124465 | 2024-08-08 17:10:31 |
| R83.htm | 85208 | 2024-08-08 17:10:31 |
| R84.htm | 12099 | 2024-08-08 17:10:31 |
| R85.htm | 38526 | 2024-08-08 17:10:31 |
| R86.htm | 41068 | 2024-08-08 17:10:31 |
| R87.htm | 37485 | 2024-08-08 17:10:31 |
| R88.htm | 43911 | 2024-08-08 17:10:31 |
| R89.htm | 46312 | 2024-08-08 17:10:31 |
| R9.htm | 8549 | 2024-08-08 17:10:31 |
| R90.htm | 13194 | 2024-08-08 17:10:31 |
| R91.htm | 27098 | 2024-08-08 17:10:31 |
| report.css | 2768 | 2024-08-08 17:10:31 |
| Show.js | 1086 | 2024-08-08 17:10:31 |
| wtfc-20240630.htm | 5897074 | 2024-08-08 17:10:31 |
| wtfc-20240630.xsd | 93222 | 2024-08-08 17:10:31 |
| wtfc-20240630_cal.xml | 202251 | 2024-08-08 17:10:31 |
| wtfc-20240630_def.xml | 669004 | 2024-08-08 17:10:31 |
| wtfc-20240630_htm.xml | 6688904 | 2024-08-08 17:10:31 |
| wtfc-20240630_lab.xml | 1267795 | 2024-08-08 17:10:31 |
| wtfc-20240630_pre.xml | 965933 | 2024-08-08 17:10:31 |