Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000920112-18-000267-index-headers.html | 2018-11-06 08:50:42 | |
| 0000920112-18-000267-index.html | 2018-11-06 08:50:42 | |
| 0000920112-18-000267.txt | 2018-11-06 08:50:42 | |
 0000920112-18-000267-xbrl.zip | 508210 | 2018-11-06 08:50:42 |
| ex-31109302018.htm | 20723 | 2018-11-06 08:50:42 |
| ex-31209302018.htm | 20832 | 2018-11-06 08:50:42 |
| ex-32109302018.htm | 6154 | 2018-11-06 08:50:42 |
| ex-32209302018.htm | 6300 | 2018-11-06 08:50:42 |
| ex31amendmenttocertiffofin.htm | 7748 | 2018-11-06 08:50:42 |
| FilingSummary.xml | 56916 | 2018-11-06 08:50:42 |
| Financial_Report.xlsx | 162113 | 2018-11-06 08:50:42 |
| htlf-20180930.xml | 6849729 | 2018-11-06 08:50:42 |
| htlf-20180930.xsd | 76336 | 2018-11-06 08:50:42 |
| htlf-20180930_cal.xml | 193124 | 2018-11-06 08:50:42 |
| htlf-20180930_def.xml | 713069 | 2018-11-06 08:50:42 |
| htlf-20180930_lab.xml | 1241152 | 2018-11-06 08:50:42 |
| htlf-20180930_pre.xml | 891630 | 2018-11-06 08:50:42 |
| htlfq32018form10-q.htm | 4122994 | 2018-11-06 08:50:42 |
| R1.htm | 24102 | 2018-11-06 08:50:42 |
| R10.htm | 142082 | 2018-11-06 08:50:42 |
| R11.htm | 49083 | 2018-11-06 08:50:42 |
| R12.htm | 228801 | 2018-11-06 08:50:42 |
| R13.htm | 719482 | 2018-11-06 08:50:42 |
| R14.htm | 134020 | 2018-11-06 08:50:42 |
| R15.htm | 233414 | 2018-11-06 08:50:42 |
| R16.htm | 272357 | 2018-11-06 08:50:42 |
| R17.htm | 566139 | 2018-11-06 08:50:42 |
| R18.htm | 90821 | 2018-11-06 08:50:42 |
| R19.htm | 77518 | 2018-11-06 08:50:42 |
| R2.htm | 104590 | 2018-11-06 08:50:42 |
| R20.htm | 98249 | 2018-11-06 08:50:42 |
| R21.htm | 37968 | 2018-11-06 08:50:42 |
| R22.htm | 226024 | 2018-11-06 08:50:42 |
| R23.htm | 712166 | 2018-11-06 08:50:42 |
| R24.htm | 133355 | 2018-11-06 08:50:42 |
| R25.htm | 211609 | 2018-11-06 08:50:42 |
| R26.htm | 258028 | 2018-11-06 08:50:42 |
| R27.htm | 546964 | 2018-11-06 08:50:42 |
| R28.htm | 79733 | 2018-11-06 08:50:42 |
| R29.htm | 4293 | 2018-11-06 08:50:42 |
| R3.htm | 31164 | 2018-11-06 08:50:42 |
| R30.htm | 31312 | 2018-11-06 08:50:42 |
| R31.htm | 66990 | 2018-11-06 08:50:42 |
| R32.htm | 25018 | 2018-11-06 08:50:42 |
| R33.htm | 27232 | 2018-11-06 08:50:42 |
| R34.htm | 17512 | 2018-11-06 08:50:42 |
| R35.htm | 74340 | 2018-11-06 08:50:42 |
| R36.htm | 56908 | 2018-11-06 08:50:42 |
| R37.htm | 13142 | 2018-11-06 08:50:42 |
| R38.htm | 45740 | 2018-11-06 08:50:42 |
| R39.htm | 30306 | 2018-11-06 08:50:42 |
| R4.htm | 120443 | 2018-11-06 08:50:42 |
| R40.htm | 14084 | 2018-11-06 08:50:42 |
| R41.htm | 43073 | 2018-11-06 08:50:42 |
| R42.htm | 28924 | 2018-11-06 08:50:42 |
| R43.htm | 9672 | 2018-11-06 08:50:42 |
| R44.htm | 48584 | 2018-11-06 08:50:42 |
| R45.htm | 21667 | 2018-11-06 08:50:42 |
| R46.htm | 36004 | 2018-11-06 08:50:42 |
| R47.htm | 46215 | 2018-11-06 08:50:42 |
| R48.htm | 11432 | 2018-11-06 08:50:42 |
| R49.htm | 43182 | 2018-11-06 08:50:42 |
| R5.htm | 15853 | 2018-11-06 08:50:42 |
| R50.htm | 9613 | 2018-11-06 08:50:42 |
| R51.htm | 46439 | 2018-11-06 08:50:42 |
| R52.htm | 57583 | 2018-11-06 08:50:42 |
| R53.htm | 87178 | 2018-11-06 08:50:42 |
| R54.htm | 12867 | 2018-11-06 08:50:42 |
| R55.htm | 32839 | 2018-11-06 08:50:42 |
| R56.htm | 14432 | 2018-11-06 08:50:42 |
| R57.htm | 22005 | 2018-11-06 08:50:42 |
| R58.htm | 33505 | 2018-11-06 08:50:42 |
| R59.htm | 32771 | 2018-11-06 08:50:42 |
| R6.htm | 37084 | 2018-11-06 08:50:42 |
| R60.htm | 20457 | 2018-11-06 08:50:42 |
| R61.htm | 38683 | 2018-11-06 08:50:42 |
| R62.htm | 75606 | 2018-11-06 08:50:42 |
| R63.htm | 29628 | 2018-11-06 08:50:42 |
| R64.htm | 46104 | 2018-11-06 08:50:42 |
| R65.htm | 6750 | 2018-11-06 08:50:42 |
| R66.htm | 21828 | 2018-11-06 08:50:42 |
| R67.htm | 51993 | 2018-11-06 08:50:42 |
| R68.htm | 17528 | 2018-11-06 08:50:42 |
| R69.htm | 7842 | 2018-11-06 08:50:42 |
| R7.htm | 147724 | 2018-11-06 08:50:42 |
| R70.htm | 14149 | 2018-11-06 08:50:42 |
| R71.htm | 7547 | 2018-11-06 08:50:42 |
| R72.htm | 8537 | 2018-11-06 08:50:42 |
| R73.htm | 7548 | 2018-11-06 08:50:42 |
| R74.htm | 20259 | 2018-11-06 08:50:42 |
| R75.htm | 15322 | 2018-11-06 08:50:42 |
| R76.htm | 21820 | 2018-11-06 08:50:42 |
| R77.htm | 9779 | 2018-11-06 08:50:42 |
| R78.htm | 21787 | 2018-11-06 08:50:42 |
| R79.htm | 13789 | 2018-11-06 08:50:42 |
| R8.htm | 40486 | 2018-11-06 08:50:42 |
| R80.htm | 95123 | 2018-11-06 08:50:42 |
| R81.htm | 84406 | 2018-11-06 08:50:42 |
| R82.htm | 73430 | 2018-11-06 08:50:42 |
| R83.htm | 19893 | 2018-11-06 08:50:42 |
| R84.htm | 131302 | 2018-11-06 08:50:42 |
| R85.htm | 46449 | 2018-11-06 08:50:42 |
| R9.htm | 11402 | 2018-11-06 08:50:42 |
| report.css | 2768 | 2018-11-06 08:50:42 |
| Show.js | 1085 | 2018-11-06 08:50:42 |