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| 0000909108-24-000044.txt | 2024-11-04 16:02:43 | |
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| dhil-20240930.htm | 1167573 | 2024-11-04 16:02:43 |
| dhil-20240930.xsd | 36082 | 2024-11-04 16:02:43 |
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 dhil-20240930_g1.jpg | 615960 | 2024-11-04 16:02:43 |
| dhil-20240930_htm.xml | 667929 | 2024-11-04 16:02:43 |
| dhil-20240930_lab.xml | 486423 | 2024-11-04 16:02:43 |
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| ex-312x20240930.htm | 9880 | 2024-11-04 16:02:43 |
| ex-321x20240930.htm | 5670 | 2024-11-04 16:02:43 |
| FilingSummary.xml | 28315 | 2024-11-04 16:02:43 |
| Financial_Report.xlsx | 75383 | 2024-11-04 16:02:43 |
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| R1.htm | 51551 | 2024-11-04 16:02:43 |
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| report.css | 2767 | 2024-11-04 16:02:43 |
| Show.js | 1085 | 2024-11-04 16:02:43 |