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| 0000876437-18-000009.txt | 2018-02-23 17:06:59 | |
 0000876437-18-000009-xbrl.zip | 527442 | 2018-02-23 17:06:59 |
| FilingSummary.xml | 46371 | 2018-02-23 17:06:59 |
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| mtg-123117x10k.htm | 6485831 | 2018-02-23 17:06:59 |
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| mtg-20171231.xml | 6242331 | 2018-02-23 17:06:59 |
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| report.css | 2768 | 2018-02-23 17:06:59 |
| Show.js | 1411 | 2018-02-23 17:06:59 |