Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000773141-22-000033-index-headers.html | 2022-04-28 13:46:20 | |
| 0000773141-22-000033-index.html | 2022-04-28 13:46:20 | |
| 0000773141-22-000033.txt | 2022-04-28 13:46:20 | |
 0000773141-22-000033-xbrl.zip | 252114 | 2022-04-28 13:46:20 |
| FilingSummary.xml | 45871 | 2022-04-28 13:46:20 |
| Financial_Report.xlsx | 93772 | 2022-04-28 13:46:20 |
| mdc-20220331.htm | 1411285 | 2022-04-28 13:46:20 |
| mdc-20220331.xsd | 57413 | 2022-04-28 13:46:20 |
| mdc-20220331xex311.htm | 9578 | 2022-04-28 13:46:20 |
| mdc-20220331xex312.htm | 9569 | 2022-04-28 13:46:20 |
| mdc-20220331xex321.htm | 3360 | 2022-04-28 13:46:20 |
| mdc-20220331xex322.htm | 3415 | 2022-04-28 13:46:20 |
| mdc-20220331_cal.xml | 66846 | 2022-04-28 13:46:20 |
| mdc-20220331_def.xml | 315466 | 2022-04-28 13:46:20 |
| mdc-20220331_htm.xml | 1036952 | 2022-04-28 13:46:20 |
| mdc-20220331_lab.xml | 539130 | 2022-04-28 13:46:20 |
| mdc-20220331_pre.xml | 407407 | 2022-04-28 13:46:20 |
| MetaLinks.json | 620905 | 2022-04-28 13:46:20 |
| R1.htm | 56975 | 2022-04-28 13:46:20 |
| R10.htm | 29514 | 2022-04-28 13:46:20 |
| R11.htm | 32674 | 2022-04-28 13:46:20 |
| R12.htm | 40642 | 2022-04-28 13:46:20 |
| R13.htm | 18847 | 2022-04-28 13:46:20 |
| R14.htm | 33879 | 2022-04-28 13:46:20 |
| R15.htm | 15089 | 2022-04-28 13:46:20 |
| R16.htm | 24407 | 2022-04-28 13:46:20 |
| R17.htm | 17363 | 2022-04-28 13:46:20 |
| R18.htm | 16377 | 2022-04-28 13:46:20 |
| R19.htm | 7330 | 2022-04-28 13:46:20 |
| R2.htm | 93664 | 2022-04-28 13:46:20 |
| R20.htm | 14288 | 2022-04-28 13:46:20 |
| R21.htm | 16223 | 2022-04-28 13:46:20 |
| R22.htm | 10978 | 2022-04-28 13:46:20 |
| R23.htm | 7142 | 2022-04-28 13:46:20 |
| R24.htm | 17397 | 2022-04-28 13:46:20 |
| R25.htm | 6248 | 2022-04-28 13:46:20 |
| R26.htm | 15863 | 2022-04-28 13:46:20 |
| R27.htm | 6249 | 2022-04-28 13:46:20 |
| R28.htm | 58379 | 2022-04-28 13:46:20 |
| R29.htm | 27134 | 2022-04-28 13:46:20 |
| R3.htm | 19745 | 2022-04-28 13:46:20 |
| R30.htm | 27918 | 2022-04-28 13:46:20 |
| R31.htm | 36396 | 2022-04-28 13:46:20 |
| R32.htm | 17632 | 2022-04-28 13:46:20 |
| R33.htm | 36532 | 2022-04-28 13:46:20 |
| R34.htm | 14337 | 2022-04-28 13:46:20 |
| R35.htm | 25760 | 2022-04-28 13:46:20 |
| R36.htm | 15399 | 2022-04-28 13:46:20 |
| R37.htm | 13843 | 2022-04-28 13:46:20 |
| R38.htm | 12427 | 2022-04-28 13:46:20 |
| R39.htm | 13876 | 2022-04-28 13:46:20 |
| R4.htm | 86044 | 2022-04-28 13:46:20 |
| R40.htm | 5969 | 2022-04-28 13:46:20 |
| R41.htm | 22801 | 2022-04-28 13:46:20 |
| R42.htm | 29307 | 2022-04-28 13:46:20 |
| R43.htm | 28456 | 2022-04-28 13:46:20 |
| R44.htm | 56752 | 2022-04-28 13:46:20 |
| R45.htm | 4832 | 2022-04-28 13:46:20 |
| R46.htm | 7104 | 2022-04-28 13:46:20 |
| R47.htm | 19129 | 2022-04-28 13:46:20 |
| R48.htm | 43282 | 2022-04-28 13:46:20 |
| R49.htm | 19125 | 2022-04-28 13:46:20 |
| R5.htm | 46227 | 2022-04-28 13:46:20 |
| R50.htm | 14690 | 2022-04-28 13:46:20 |
| R51.htm | 7839 | 2022-04-28 13:46:20 |
| R52.htm | 17549 | 2022-04-28 13:46:20 |
| R53.htm | 11437 | 2022-04-28 13:46:20 |
| R54.htm | 8995 | 2022-04-28 13:46:20 |
| R55.htm | 7460 | 2022-04-28 13:46:20 |
| R56.htm | 7009 | 2022-04-28 13:46:20 |
| R57.htm | 26334 | 2022-04-28 13:46:20 |
| R58.htm | 18788 | 2022-04-28 13:46:20 |
| R59.htm | 29756 | 2022-04-28 13:46:20 |
| R6.htm | 84443 | 2022-04-28 13:46:20 |
| R60.htm | 12254 | 2022-04-28 13:46:20 |
| R61.htm | 11919 | 2022-04-28 13:46:20 |
| R62.htm | 12181 | 2022-04-28 13:46:20 |
| R63.htm | 10398 | 2022-04-28 13:46:20 |
| R64.htm | 8420 | 2022-04-28 13:46:20 |
| R65.htm | 18852 | 2022-04-28 13:46:20 |
| R66.htm | 23186 | 2022-04-28 13:46:20 |
| R67.htm | 11828 | 2022-04-28 13:46:20 |
| R68.htm | 17050 | 2022-04-28 13:46:20 |
| R69.htm | 16308 | 2022-04-28 13:46:20 |
| R7.htm | 8471 | 2022-04-28 13:46:20 |
| R70.htm | 14687 | 2022-04-28 13:46:20 |
| R71.htm | 50048 | 2022-04-28 13:46:20 |
| R72.htm | 10704 | 2022-04-28 13:46:20 |
| R73.htm | 18390 | 2022-04-28 13:46:20 |
| R74.htm | 8912 | 2022-04-28 13:46:20 |
| R8.htm | 14299 | 2022-04-28 13:46:20 |
| R9.htm | 62142 | 2022-04-28 13:46:20 |
| report.css | 2767 | 2022-04-28 13:46:20 |
| Show.js | 1085 | 2022-04-28 13:46:20 |