Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000067716-25-000087-index-headers.html | 2025-11-06 08:35:02 | |
| 0000067716-25-000087-index.html | 2025-11-06 08:35:02 | |
| 0000067716-25-000087.txt | 2025-11-06 08:35:02 | |
 0000067716-25-000087-xbrl.zip | 31603 | 2025-11-06 08:35:02 |
| a2025q3ex99.htm | 350049 | 2025-11-06 08:35:02 |
| FilingSummary.xml | 1663 | 2025-11-06 08:35:02 |
 header01.jpg | 24712 | 2025-11-06 08:35:02 |
| mdu-20251106.htm | 30690 | 2025-11-06 08:35:02 |
| mdu-20251106.xsd | 2033 | 2025-11-06 08:35:02 |
| mdu-20251106_def.xml | 14731 | 2025-11-06 08:35:02 |
| mdu-20251106_htm.xml | 2824 | 2025-11-06 08:35:02 |
| mdu-20251106_lab.xml | 26114 | 2025-11-06 08:35:02 |
| mdu-20251106_pre.xml | 15396 | 2025-11-06 08:35:02 |
| MetaLinks.json | 20029 | 2025-11-06 08:35:02 |
| R1.htm | 39839 | 2025-11-06 08:35:02 |
| report.css | 2767 | 2025-11-06 08:35:02 |
| Show.js | 1085 | 2025-11-06 08:35:02 |