Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-161340-index-headers.html | 2020-06-05 06:50:41 | |
| 0001193125-20-161340-index.html | 2020-06-05 06:50:41 | |
| 0001193125-20-161340.txt | 2020-06-05 06:50:41 | |
 0001193125-20-161340-xbrl.zip | 16680 | 2020-06-05 06:50:41 |
| d921216d8k.htm | 35194 | 2020-06-05 06:50:41 |
| d921216d8k_htm.xml | 3214 | 2020-06-05 06:50:41 |
| d921216dex991.htm | 23728 | 2020-06-05 06:50:41 |
| FilingSummary.xml | 1719 | 2020-06-05 06:50:41 |
| Financial_Report.xlsx | 5791 | 2020-06-05 06:50:41 |
 g921216g0605050400013.jpg | 7109 | 2020-06-05 06:50:41 |
| md-20200605.xsd | 3056 | 2020-06-05 06:50:41 |
| md-20200605_lab.xml | 17372 | 2020-06-05 06:50:41 |
| md-20200605_pre.xml | 10945 | 2020-06-05 06:50:41 |
| MetaLinks.json | 18158 | 2020-06-05 06:50:41 |
| R1.htm | 38605 | 2020-06-05 06:50:41 |
| report.css | 2767 | 2020-06-05 06:50:41 |
| Show.js | 1085 | 2020-06-05 06:50:41 |