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| 0000040533-20-000063-index.html | 2020-10-28 11:39:34 | |
| 0000040533-20-000063.txt | 2020-10-28 11:39:34 | |
 0000040533-20-000063-xbrl.zip | 274667 | 2020-10-28 11:39:34 |
| ex311-20200927.htm | 13055 | 2020-10-28 11:39:34 |
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| gd-2020092710q.htm | 2340132 | 2020-10-28 11:39:34 |
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| report.css | 2767 | 2020-10-28 11:39:34 |
| Show.js | 1085 | 2020-10-28 11:39:34 |