Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-265496-index-headers.html | 2019-10-10 06:50:45 | |
| 0001193125-19-265496-index.html | 2019-10-10 06:50:45 | |
| 0001193125-19-265496.txt | 2019-10-10 06:50:45 | |
 0001193125-19-265496-xbrl.zip | 95395 | 2019-10-10 06:50:45 |
| d811805d8k.htm | 37404 | 2019-10-10 06:50:45 |
| d811805d8k_htm.xml | 3215 | 2019-10-10 06:50:45 |
| d811805dex21.htm | 468373 | 2019-10-10 06:50:45 |
| d811805dex991.htm | 13680 | 2019-10-10 06:50:45 |
| FilingSummary.xml | 1753 | 2019-10-10 06:50:45 |
| Financial_Report.xlsx | 5781 | 2019-10-10 06:50:45 |
 g811805g1009171648598.jpg | 6824 | 2019-10-10 06:50:45 |
| md-20191010.xsd | 3058 | 2019-10-10 06:50:45 |
| md-20191010_lab.xml | 17374 | 2019-10-10 06:50:45 |
| md-20191010_pre.xml | 10947 | 2019-10-10 06:50:45 |
| MetaLinks.json | 18188 | 2019-10-10 06:50:45 |
| R1.htm | 38605 | 2019-10-10 06:50:45 |
| report.css | 2767 | 2019-10-10 06:50:45 |
| Show.js | 1084 | 2019-10-10 06:50:45 |