Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001015328-23-000070-index-headers.html | 2023-02-28 17:27:40 | |
| 0001015328-23-000070-index.html | 2023-02-28 17:27:40 | |
| 0001015328-23-000070.txt | 2023-02-28 17:27:40 | |
 0001015328-23-000070-xbrl.zip | 1146653 | 2023-02-28 17:27:40 |
| exhibit211subsidiaries1231.htm | 26637 | 2023-02-28 17:27:40 |
| exhibit231consentofindepen.htm | 3608 | 2023-02-28 17:27:40 |
| exhibit311executivesignoff.htm | 10840 | 2023-02-28 17:27:40 |
| exhibit312executivesignoff.htm | 10672 | 2023-02-28 17:27:40 |
| exhibit321sox1231224q22.htm | 8015 | 2023-02-28 17:27:40 |
| exhibit41registrantsecurit.htm | 45145 | 2023-02-28 17:27:40 |
| FilingSummary.xml | 92560 | 2023-02-28 17:27:40 |
| Financial_Report.xlsx | 318582 | 2023-02-28 17:27:40 |
| MetaLinks.json | 1831423 | 2023-02-28 17:27:40 |
| R1.htm | 70226 | 2023-02-28 17:27:40 |
| R10.htm | 74958 | 2023-02-28 17:27:40 |
| R100.htm | 30492 | 2023-02-28 17:27:40 |
| R101.htm | 17842 | 2023-02-28 17:27:40 |
| R102.htm | 34209 | 2023-02-28 17:27:40 |
| R103.htm | 48710 | 2023-02-28 17:27:40 |
| R104.htm | 11934 | 2023-02-28 17:27:40 |
| R105.htm | 99018 | 2023-02-28 17:27:40 |
| R106.htm | 46080 | 2023-02-28 17:27:40 |
| R107.htm | 43068 | 2023-02-28 17:27:40 |
| R108.htm | 28904 | 2023-02-28 17:27:40 |
| R109.htm | 10160 | 2023-02-28 17:27:40 |
| R11.htm | 21364 | 2023-02-28 17:27:40 |
| R110.htm | 149301 | 2023-02-28 17:27:40 |
| R111.htm | 29113 | 2023-02-28 17:27:40 |
| R112.htm | 32062 | 2023-02-28 17:27:40 |
| R113.htm | 67349 | 2023-02-28 17:27:40 |
| R114.htm | 19566 | 2023-02-28 17:27:40 |
| R115.htm | 12325 | 2023-02-28 17:27:40 |
| R116.htm | 20469 | 2023-02-28 17:27:40 |
| R117.htm | 20013 | 2023-02-28 17:27:40 |
| R118.htm | 40806 | 2023-02-28 17:27:40 |
| R119.htm | 122187 | 2023-02-28 17:27:40 |
| R12.htm | 243406 | 2023-02-28 17:27:40 |
| R120.htm | 87303 | 2023-02-28 17:27:40 |
| R121.htm | 47423 | 2023-02-28 17:27:40 |
| R122.htm | 26479 | 2023-02-28 17:27:40 |
| R123.htm | 97503 | 2023-02-28 17:27:40 |
| R124.htm | 83743 | 2023-02-28 17:27:40 |
| R125.htm | 18849 | 2023-02-28 17:27:40 |
| R126.htm | 48554 | 2023-02-28 17:27:40 |
| R127.htm | 34510 | 2023-02-28 17:27:40 |
| R128.htm | 40373 | 2023-02-28 17:27:40 |
| R129.htm | 8062 | 2023-02-28 17:27:40 |
| R13.htm | 33216 | 2023-02-28 17:27:40 |
| R130.htm | 58022 | 2023-02-28 17:27:40 |
| R131.htm | 50459 | 2023-02-28 17:27:40 |
| R132.htm | 55366 | 2023-02-28 17:27:40 |
| R133.htm | 78746 | 2023-02-28 17:27:40 |
| R134.htm | 45661 | 2023-02-28 17:27:40 |
| R14.htm | 781910 | 2023-02-28 17:27:40 |
| R15.htm | 32647 | 2023-02-28 17:27:40 |
| R16.htm | 5538 | 2023-02-28 17:27:40 |
| R17.htm | 58273 | 2023-02-28 17:27:40 |
| R18.htm | 18339 | 2023-02-28 17:27:40 |
| R19.htm | 48244 | 2023-02-28 17:27:40 |
| R2.htm | 7801 | 2023-02-28 17:27:40 |
| R20.htm | 30127 | 2023-02-28 17:27:40 |
| R21.htm | 5515 | 2023-02-28 17:27:40 |
| R22.htm | 34059 | 2023-02-28 17:27:40 |
| R23.htm | 64544 | 2023-02-28 17:27:40 |
| R24.htm | 66662 | 2023-02-28 17:27:40 |
| R25.htm | 113192 | 2023-02-28 17:27:40 |
| R26.htm | 111112 | 2023-02-28 17:27:40 |
| R27.htm | 122960 | 2023-02-28 17:27:40 |
| R28.htm | 293059 | 2023-02-28 17:27:40 |
| R29.htm | 21655 | 2023-02-28 17:27:40 |
| R3.htm | 118383 | 2023-02-28 17:27:40 |
| R30.htm | 136168 | 2023-02-28 17:27:40 |
| R31.htm | 304394 | 2023-02-28 17:27:40 |
| R32.htm | 105669 | 2023-02-28 17:27:40 |
| R33.htm | 91402 | 2023-02-28 17:27:40 |
| R34.htm | 110421 | 2023-02-28 17:27:40 |
| R35.htm | 30248 | 2023-02-28 17:27:40 |
| R36.htm | 135944 | 2023-02-28 17:27:40 |
| R37.htm | 243450 | 2023-02-28 17:27:40 |
| R38.htm | 29787 | 2023-02-28 17:27:40 |
| R39.htm | 750421 | 2023-02-28 17:27:40 |
| R4.htm | 28315 | 2023-02-28 17:27:40 |
| R40.htm | 23562 | 2023-02-28 17:27:40 |
| R41.htm | 93178 | 2023-02-28 17:27:40 |
| R42.htm | 17164 | 2023-02-28 17:27:40 |
| R43.htm | 49167 | 2023-02-28 17:27:40 |
| R44.htm | 26975 | 2023-02-28 17:27:40 |
| R45.htm | 22019 | 2023-02-28 17:27:40 |
| R46.htm | 58534 | 2023-02-28 17:27:40 |
| R47.htm | 55604 | 2023-02-28 17:27:40 |
| R48.htm | 54159 | 2023-02-28 17:27:40 |
| R49.htm | 111364 | 2023-02-28 17:27:40 |
| R5.htm | 145817 | 2023-02-28 17:27:40 |
| R50.htm | 105068 | 2023-02-28 17:27:40 |
| R51.htm | 287172 | 2023-02-28 17:27:40 |
| R52.htm | 144810 | 2023-02-28 17:27:40 |
| R53.htm | 283263 | 2023-02-28 17:27:40 |
| R54.htm | 103974 | 2023-02-28 17:27:40 |
| R55.htm | 85205 | 2023-02-28 17:27:40 |
| R56.htm | 113584 | 2023-02-28 17:27:40 |
| R57.htm | 29265 | 2023-02-28 17:27:40 |
| R58.htm | 30720 | 2023-02-28 17:27:40 |
| R59.htm | 70272 | 2023-02-28 17:27:40 |
| R6.htm | 72862 | 2023-02-28 17:27:40 |
| R60.htm | 22288 | 2023-02-28 17:27:40 |
| R61.htm | 54072 | 2023-02-28 17:27:40 |
| R62.htm | 31137 | 2023-02-28 17:27:40 |
| R63.htm | 65879 | 2023-02-28 17:27:40 |
| R64.htm | 25259 | 2023-02-28 17:27:40 |
| R65.htm | 18983 | 2023-02-28 17:27:40 |
| R66.htm | 95071 | 2023-02-28 17:27:40 |
| R67.htm | 223216 | 2023-02-28 17:27:40 |
| R68.htm | 82741 | 2023-02-28 17:27:40 |
| R69.htm | 16177 | 2023-02-28 17:27:40 |
| R7.htm | 76043 | 2023-02-28 17:27:40 |
| R70.htm | 41561 | 2023-02-28 17:27:40 |
| R71.htm | 82112 | 2023-02-28 17:27:40 |
| R72.htm | 37109 | 2023-02-28 17:27:40 |
| R73.htm | 55248 | 2023-02-28 17:27:40 |
| R74.htm | 17806 | 2023-02-28 17:27:40 |
| R75.htm | 10949 | 2023-02-28 17:27:40 |
| R76.htm | 22853 | 2023-02-28 17:27:40 |
| R77.htm | 19456 | 2023-02-28 17:27:40 |
| R78.htm | 30203 | 2023-02-28 17:27:40 |
| R79.htm | 13238 | 2023-02-28 17:27:40 |
| R8.htm | 7962 | 2023-02-28 17:27:40 |
| R80.htm | 21727 | 2023-02-28 17:27:40 |
| R81.htm | 29447 | 2023-02-28 17:27:40 |
| R82.htm | 16779 | 2023-02-28 17:27:40 |
| R83.htm | 14460 | 2023-02-28 17:27:40 |
| R84.htm | 44075 | 2023-02-28 17:27:40 |
| R85.htm | 14301 | 2023-02-28 17:27:40 |
| R86.htm | 27895 | 2023-02-28 17:27:40 |
| R87.htm | 14909 | 2023-02-28 17:27:40 |
| R88.htm | 74400 | 2023-02-28 17:27:40 |
| R89.htm | 13974 | 2023-02-28 17:27:40 |
| R9.htm | 156619 | 2023-02-28 17:27:40 |
| R90.htm | 19633 | 2023-02-28 17:27:40 |
| R91.htm | 64022 | 2023-02-28 17:27:40 |
| R92.htm | 27481 | 2023-02-28 17:27:40 |
| R93.htm | 6284 | 2023-02-28 17:27:40 |
| R94.htm | 16006 | 2023-02-28 17:27:40 |
| R95.htm | 14146 | 2023-02-28 17:27:40 |
| R96.htm | 44967 | 2023-02-28 17:27:40 |
| R97.htm | 40136 | 2023-02-28 17:27:40 |
| R98.htm | 7592 | 2023-02-28 17:27:40 |
| R99.htm | 16431 | 2023-02-28 17:27:40 |
| R9999.htm | 23011 | 2023-02-28 17:27:40 |
| report.css | 2768 | 2023-02-28 17:27:40 |
| Show.js | 1086 | 2023-02-28 17:27:40 |
| wtfc-20221231.htm | 9116724 | 2023-02-28 17:27:40 |
| wtfc-20221231.xsd | 133775 | 2023-02-28 17:27:40 |
| wtfc-20221231_cal.xml | 274380 | 2023-02-28 17:27:40 |
| wtfc-20221231_def.xml | 917021 | 2023-02-28 17:27:40 |
 wtfc-20221231_g1.jpg | 119424 | 2023-02-28 17:27:40 |
| wtfc-20221231_htm.xml | 9096766 | 2023-02-28 17:27:40 |
| wtfc-20221231_lab.xml | 1797723 | 2023-02-28 17:27:40 |
| wtfc-20221231_pre.xml | 1279188 | 2023-02-28 17:27:40 |