Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-242587-index-headers.html | 2020-09-10 06:45:34 | |
| 0001193125-20-242587-index.html | 2020-09-10 06:45:34 | |
| 0001193125-20-242587.txt | 2020-09-10 06:45:34 | |
 0001193125-20-242587-xbrl.zip | 14439 | 2020-09-10 06:45:34 |
| d21707d8k.htm | 32101 | 2020-09-10 06:45:34 |
| d21707d8k_htm.xml | 3245 | 2020-09-10 06:45:34 |
| d21707dex991.htm | 13454 | 2020-09-10 06:45:34 |
| FilingSummary.xml | 1715 | 2020-09-10 06:45:34 |
| Financial_Report.xlsx | 5465 | 2020-09-10 06:45:34 |
 g21707g0909091222517.jpg | 7091 | 2020-09-10 06:45:34 |
| md-20200909.xsd | 3057 | 2020-09-10 06:45:34 |
| md-20200909_lab.xml | 17373 | 2020-09-10 06:45:34 |
| md-20200909_pre.xml | 10946 | 2020-09-10 06:45:34 |
| MetaLinks.json | 18212 | 2020-09-10 06:45:34 |
| R1.htm | 38640 | 2020-09-10 06:45:34 |
| report.css | 2767 | 2020-09-10 06:45:34 |
| Show.js | 1085 | 2020-09-10 06:45:34 |