Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-135547-index-headers.html | 2020-05-07 06:52:41 | |
| 0001193125-20-135547-index.html | 2020-05-07 06:52:41 | |
| 0001193125-20-135547.txt | 2020-05-07 06:52:41 | |
 0001193125-20-135547-xbrl.zip | 17149 | 2020-05-07 06:52:41 |
| d926092d8k.htm | 23744 | 2020-05-07 06:52:41 |
| d926092d8k_htm.xml | 3215 | 2020-05-07 06:52:41 |
| d926092dex991.htm | 81613 | 2020-05-07 06:52:41 |
| FilingSummary.xml | 1719 | 2020-05-07 06:52:41 |
| Financial_Report.xlsx | 5780 | 2020-05-07 06:52:41 |
 g926092g0507051451086.jpg | 7755 | 2020-05-07 06:52:41 |
| md-20200507.xsd | 3056 | 2020-05-07 06:52:41 |
| md-20200507_lab.xml | 17372 | 2020-05-07 06:52:41 |
| md-20200507_pre.xml | 10945 | 2020-05-07 06:52:41 |
| MetaLinks.json | 18158 | 2020-05-07 06:52:41 |
| R1.htm | 38604 | 2020-05-07 06:52:41 |
| report.css | 2767 | 2020-05-07 06:52:41 |
| Show.js | 1085 | 2020-05-07 06:52:41 |