Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-067220-index-headers.html | 2020-03-09 16:30:43 | |
| 0001193125-20-067220-index.html | 2020-03-09 16:30:43 | |
| 0001193125-20-067220.txt | 2020-03-09 16:30:43 | |
 0001193125-20-067220-xbrl.zip | 7796 | 2020-03-09 16:30:43 |
| d848754d8k.htm | 23900 | 2020-03-09 16:30:43 |
| d848754d8k_htm.xml | 3215 | 2020-03-09 16:30:43 |
| FilingSummary.xml | 1684 | 2020-03-09 16:30:43 |
| Financial_Report.xlsx | 5782 | 2020-03-09 16:30:43 |
| md-20200309.xsd | 3057 | 2020-03-09 16:30:43 |
| md-20200309_lab.xml | 17373 | 2020-03-09 16:30:43 |
| md-20200309_pre.xml | 10946 | 2020-03-09 16:30:43 |
| MetaLinks.json | 18158 | 2020-03-09 16:30:43 |
| R1.htm | 38606 | 2020-03-09 16:30:43 |
| report.css | 2766 | 2020-03-09 16:30:43 |
| Show.js | 1085 | 2020-03-09 16:30:43 |