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| 0000909108-25-000010-index.html | 2025-02-26 16:24:02 | |
| 0000909108-25-000010.txt | 2025-02-26 16:24:02 | |
 0000909108-25-000010-xbrl.zip | 782828 | 2025-02-26 16:24:02 |
| dhil-20241231.htm | 1856453 | 2025-02-26 16:24:02 |
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 dhil-20241231_g1.jpg | 615960 | 2025-02-26 16:24:02 |
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| Financial_Report.xlsx | 93614 | 2025-02-26 16:24:02 |
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| R9.htm | 5318 | 2025-02-26 16:24:02 |
| report.css | 2767 | 2025-02-26 16:24:02 |
| Show.js | 1085 | 2025-02-26 16:24:02 |