Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-154005-index-headers.html | 2021-05-07 06:50:55 | |
| 0001193125-21-154005-index.html | 2021-05-07 06:50:55 | |
| 0001193125-21-154005.txt | 2021-05-07 06:50:55 | |
 0001193125-21-154005-xbrl.zip | 16726 | 2021-05-07 06:50:55 |
| d420793d8k.htm | 24751 | 2021-05-07 06:50:55 |
| d420793d8k_htm.xml | 3215 | 2021-05-07 06:50:55 |
| d420793dex991.htm | 88388 | 2021-05-07 06:50:55 |
| FilingSummary.xml | 1729 | 2021-05-07 06:50:55 |
| Financial_Report.xlsx | 5668 | 2021-05-07 06:50:55 |
 g420793g0507012024180.jpg | 7434 | 2021-05-07 06:50:55 |
| md-20210507.xsd | 3086 | 2021-05-07 06:50:55 |
| md-20210507_lab.xml | 17372 | 2021-05-07 06:50:55 |
| md-20210507_pre.xml | 10965 | 2021-05-07 06:50:55 |
| MetaLinks.json | 18456 | 2021-05-07 06:50:55 |
| R1.htm | 38608 | 2021-05-07 06:50:55 |
| report.css | 2767 | 2021-05-07 06:50:55 |
| Show.js | 1085 | 2021-05-07 06:50:55 |