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| 0000773141-23-000025.txt | 2023-05-02 15:08:16 | |
 0000773141-23-000025-xbrl.zip | 258534 | 2023-05-02 15:08:16 |
| FilingSummary.xml | 45364 | 2023-05-02 15:08:16 |
| Financial_Report.xlsx | 99192 | 2023-05-02 15:08:16 |
| mdc-20230331.htm | 1534284 | 2023-05-02 15:08:16 |
| mdc-20230331.xsd | 54934 | 2023-05-02 15:08:16 |
| mdc-20230331xex311.htm | 9575 | 2023-05-02 15:08:16 |
| mdc-20230331xex312.htm | 9566 | 2023-05-02 15:08:16 |
| mdc-20230331xex321.htm | 3357 | 2023-05-02 15:08:16 |
| mdc-20230331xex322.htm | 3412 | 2023-05-02 15:08:16 |
| mdc-20230331_cal.xml | 77032 | 2023-05-02 15:08:16 |
| mdc-20230331_def.xml | 308481 | 2023-05-02 15:08:16 |
| mdc-20230331_htm.xml | 1131131 | 2023-05-02 15:08:16 |
| mdc-20230331_lab.xml | 535073 | 2023-05-02 15:08:16 |
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| report.css | 2767 | 2023-05-02 15:08:16 |
| Show.js | 1085 | 2023-05-02 15:08:16 |