Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000920112-22-000265-index-headers.html | 2022-08-05 16:28:34 | |
| 0000920112-22-000265-index.html | 2022-08-05 16:28:34 | |
| 0000920112-22-000265.txt | 2022-08-05 16:28:34 | |
 0000920112-22-000265-xbrl.zip | 548503 | 2022-08-05 16:28:34 |
| ex-31106302022.htm | 13199 | 2022-08-05 16:28:34 |
| ex-31206302022.htm | 13286 | 2022-08-05 16:28:34 |
| ex-32106302022.htm | 5136 | 2022-08-05 16:28:34 |
| ex-32206302022.htm | 5093 | 2022-08-05 16:28:34 |
| FilingSummary.xml | 47394 | 2022-08-05 16:28:34 |
| Financial_Report.xlsx | 170900 | 2022-08-05 16:28:34 |
| htlf-20220630.htm | 5614681 | 2022-08-05 16:28:34 |
| htlf-20220630.xsd | 53638 | 2022-08-05 16:28:34 |
| htlf-20220630_cal.xml | 128200 | 2022-08-05 16:28:34 |
| htlf-20220630_def.xml | 589157 | 2022-08-05 16:28:34 |
| htlf-20220630_htm.xml | 5843747 | 2022-08-05 16:28:34 |
| htlf-20220630_lab.xml | 873942 | 2022-08-05 16:28:34 |
| htlf-20220630_pre.xml | 730246 | 2022-08-05 16:28:34 |
| MetaLinks.json | 884739 | 2022-08-05 16:28:34 |
| R1.htm | 56904 | 2022-08-05 16:28:34 |
| R10.htm | 44452 | 2022-08-05 16:28:34 |
| R11.htm | 250779 | 2022-08-05 16:28:34 |
| R12.htm | 621062 | 2022-08-05 16:28:34 |
| R13.htm | 139462 | 2022-08-05 16:28:34 |
| R14.htm | 78793 | 2022-08-05 16:28:34 |
| R15.htm | 84154 | 2022-08-05 16:28:34 |
| R16.htm | 394628 | 2022-08-05 16:28:34 |
| R17.htm | 24605 | 2022-08-05 16:28:34 |
| R18.htm | 35962 | 2022-08-05 16:28:34 |
| R19.htm | 32133 | 2022-08-05 16:28:34 |
| R2.htm | 124883 | 2022-08-05 16:28:34 |
| R20.htm | 643488 | 2022-08-05 16:28:34 |
| R21.htm | 622652 | 2022-08-05 16:28:34 |
| R22.htm | 142294 | 2022-08-05 16:28:34 |
| R23.htm | 79689 | 2022-08-05 16:28:34 |
| R24.htm | 81063 | 2022-08-05 16:28:34 |
| R25.htm | 380043 | 2022-08-05 16:28:34 |
| R26.htm | 17936 | 2022-08-05 16:28:34 |
| R27.htm | 46473 | 2022-08-05 16:28:34 |
| R28.htm | 49154 | 2022-08-05 16:28:34 |
| R29.htm | 20677 | 2022-08-05 16:28:34 |
| R3.htm | 39791 | 2022-08-05 16:28:34 |
| R30.htm | 23392 | 2022-08-05 16:28:34 |
| R31.htm | 42640 | 2022-08-05 16:28:34 |
| R32.htm | 33560 | 2022-08-05 16:28:34 |
| R33.htm | 9682 | 2022-08-05 16:28:34 |
| R34.htm | 73280 | 2022-08-05 16:28:34 |
| R35.htm | 28208 | 2022-08-05 16:28:34 |
| R36.htm | 10709 | 2022-08-05 16:28:34 |
| R37.htm | 15846 | 2022-08-05 16:28:34 |
| R38.htm | 40547 | 2022-08-05 16:28:34 |
| R39.htm | 11061 | 2022-08-05 16:28:34 |
| R4.htm | 149788 | 2022-08-05 16:28:34 |
| R40.htm | 61818 | 2022-08-05 16:28:34 |
| R41.htm | 89263 | 2022-08-05 16:28:34 |
| R42.htm | 167175 | 2022-08-05 16:28:34 |
| R43.htm | 22982 | 2022-08-05 16:28:34 |
| R44.htm | 87869 | 2022-08-05 16:28:34 |
| R45.htm | 49662 | 2022-08-05 16:28:34 |
| R46.htm | 9881 | 2022-08-05 16:28:34 |
| R47.htm | 20751 | 2022-08-05 16:28:34 |
| R48.htm | 29864 | 2022-08-05 16:28:34 |
| R49.htm | 15064 | 2022-08-05 16:28:34 |
| R5.htm | 16916 | 2022-08-05 16:28:34 |
| R50.htm | 14789 | 2022-08-05 16:28:34 |
| R51.htm | 30715 | 2022-08-05 16:28:34 |
| R52.htm | 17482 | 2022-08-05 16:28:34 |
| R53.htm | 8166 | 2022-08-05 16:28:34 |
| R54.htm | 7167 | 2022-08-05 16:28:34 |
| R55.htm | 11394 | 2022-08-05 16:28:34 |
| R56.htm | 7571 | 2022-08-05 16:28:34 |
| R57.htm | 12493 | 2022-08-05 16:28:34 |
| R58.htm | 7664 | 2022-08-05 16:28:34 |
| R59.htm | 8802 | 2022-08-05 16:28:34 |
| R6.htm | 49958 | 2022-08-05 16:28:34 |
| R60.htm | 20107 | 2022-08-05 16:28:34 |
| R61.htm | 23701 | 2022-08-05 16:28:34 |
| R62.htm | 11721 | 2022-08-05 16:28:34 |
| R63.htm | 113360 | 2022-08-05 16:28:34 |
| R64.htm | 91180 | 2022-08-05 16:28:34 |
| R65.htm | 83833 | 2022-08-05 16:28:34 |
| R66.htm | 13176 | 2022-08-05 16:28:34 |
| R67.htm | 8228 | 2022-08-05 16:28:34 |
| R68.htm | 160711 | 2022-08-05 16:28:34 |
| R69.htm | 22872 | 2022-08-05 16:28:34 |
| R7.htm | 144791 | 2022-08-05 16:28:34 |
| R70.htm | 25324 | 2022-08-05 16:28:34 |
| R8.htm | 38736 | 2022-08-05 16:28:34 |
| R9.htm | 7793 | 2022-08-05 16:28:34 |
| report.css | 2767 | 2022-08-05 16:28:34 |
| Show.js | 1085 | 2022-08-05 16:28:34 |