Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000773141-22-000025-index.html | 2022-04-22 12:22:19 | |
| 0000773141-22-000025.txt | 2022-04-22 12:22:19 | |
 0000773141-22-000025-xbrl.zip | 125908 | 2022-04-22 12:22:19 |
| exhibit21apa.htm | 932880 | 2022-04-22 12:22:19 |
| exhibit991pressrelease0422.htm | 10178 | 2022-04-22 12:22:19 |
| FilingSummary.xml | 1726 | 2022-04-22 12:22:19 |
| Financial_Report.xlsx | 5805 | 2022-04-22 12:22:19 |
| mdc-20220421.htm | 48321 | 2022-04-22 12:22:19 |
| mdc-20220421.xsd | 2795 | 2022-04-22 12:22:19 |
| mdc-20220421_def.xml | 16074 | 2022-04-22 12:22:19 |
| mdc-20220421_htm.xml | 13635 | 2022-04-22 12:22:19 |
| mdc-20220421_lab.xml | 31425 | 2022-04-22 12:22:19 |
| mdc-20220421_pre.xml | 16761 | 2022-04-22 12:22:19 |
| MetaLinks.json | 21080 | 2022-04-22 12:22:19 |
| R1.htm | 44536 | 2022-04-22 12:22:19 |
| report.css | 2767 | 2022-04-22 12:22:19 |
| Show.js | 1085 | 2022-04-22 12:22:19 |