Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000909108-25-000026-index-headers.html | 2025-04-29 16:03:50 | |
| 0000909108-25-000026-index.html | 2025-04-29 16:03:50 | |
| 0000909108-25-000026.txt | 2025-04-29 16:03:50 | |
 0000909108-25-000026-xbrl.zip | 612865 | 2025-04-29 16:03:50 |
| dhil-20250331.htm | 899917 | 2025-04-29 16:03:50 |
| dhil-20250331.xsd | 36599 | 2025-04-29 16:03:50 |
| dhil-20250331_cal.xml | 58041 | 2025-04-29 16:03:50 |
| dhil-20250331_def.xml | 155861 | 2025-04-29 16:03:50 |
 dhil-20250331_g1.jpg | 615960 | 2025-04-29 16:03:50 |
| dhil-20250331_htm.xml | 498665 | 2025-04-29 16:03:50 |
| dhil-20250331_lab.xml | 489951 | 2025-04-29 16:03:50 |
| dhil-20250331_pre.xml | 337605 | 2025-04-29 16:03:50 |
| ex-102x2025equityandcashin.htm | 29078 | 2025-04-29 16:03:50 |
| ex-103x2025equityandcashin.htm | 26644 | 2025-04-29 16:03:50 |
| ex-104x2025equityandcashin.htm | 24595 | 2025-04-29 16:03:50 |
| ex-311x20250331.htm | 9920 | 2025-04-29 16:03:50 |
| ex-312x20250331.htm | 9874 | 2025-04-29 16:03:50 |
| ex-321x20250331.htm | 5681 | 2025-04-29 16:03:50 |
| FilingSummary.xml | 28863 | 2025-04-29 16:03:50 |
| Financial_Report.xlsx | 73760 | 2025-04-29 16:03:50 |
| MetaLinks.json | 713123 | 2025-04-29 16:03:50 |
| R1.htm | 51537 | 2025-04-29 16:03:50 |
| R10.htm | 71049 | 2025-04-29 16:03:50 |
| R11.htm | 37993 | 2025-04-29 16:03:50 |
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| R2.htm | 7274 | 2025-04-29 16:03:50 |
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| R21.htm | 72777 | 2025-04-29 16:03:50 |
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| R26.htm | 9468 | 2025-04-29 16:03:50 |
| R27.htm | 16636 | 2025-04-29 16:03:50 |
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| R3.htm | 79011 | 2025-04-29 16:03:50 |
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| R31.htm | 16807 | 2025-04-29 16:03:50 |
| R32.htm | 44753 | 2025-04-29 16:03:50 |
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| R35.htm | 67888 | 2025-04-29 16:03:50 |
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| R48.htm | 12584 | 2025-04-29 16:03:50 |
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| R8.htm | 4710 | 2025-04-29 16:03:50 |
| R9.htm | 6810 | 2025-04-29 16:03:50 |
| report.css | 2767 | 2025-04-29 16:03:50 |
| Show.js | 1085 | 2025-04-29 16:03:50 |