Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-323140-index-headers.html | 2020-12-21 16:25:54 | |
| 0001193125-20-323140-index.html | 2020-12-21 16:25:54 | |
| 0001193125-20-323140.txt | 2020-12-21 16:25:54 | |
 0001193125-20-323140-xbrl.zip | 26103 | 2020-12-21 16:25:54 |
| d13850d8k.htm | 34015 | 2020-12-21 16:25:54 |
| d13850d8k_htm.xml | 3245 | 2020-12-21 16:25:54 |
| d13850dex991.htm | 231883 | 2020-12-21 16:25:54 |
| d13850dex992.htm | 7932 | 2020-12-21 16:25:54 |
| FilingSummary.xml | 1749 | 2020-12-21 16:25:54 |
| Financial_Report.xlsx | 5461 | 2020-12-21 16:25:54 |
 g13850g1219025011301.jpg | 7091 | 2020-12-21 16:25:54 |
| md-20201215.xsd | 3058 | 2020-12-21 16:25:54 |
| md-20201215_lab.xml | 17374 | 2020-12-21 16:25:54 |
| md-20201215_pre.xml | 10947 | 2020-12-21 16:25:54 |
| MetaLinks.json | 18212 | 2020-12-21 16:25:54 |
| R1.htm | 38639 | 2020-12-21 16:25:54 |
| report.css | 2767 | 2020-12-21 16:25:54 |
| Show.js | 1085 | 2020-12-21 16:25:54 |