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 0000040533-21-000014-index-headers.html | 2021-04-28 08:02:03 | |
| 0000040533-21-000014-index.html | 2021-04-28 08:02:03 | |
| 0000040533-21-000014.txt | 2021-04-28 08:02:03 | |
 0000040533-21-000014-xbrl.zip | 33396 | 2021-04-28 08:02:03 |
 chart-afc40a70732b446eb721.jpg | 48009 | 2021-04-28 08:02:03 |
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 chart-f1077c23362e4925a201.jpg | 47227 | 2021-04-28 08:02:03 |
 chart-f5e138ef88414a7fb241.jpg | 140494 | 2021-04-28 08:02:03 |
| FilingSummary.xml | 1870 | 2021-04-28 08:02:03 |
| Financial_Report.xlsx | 5672 | 2021-04-28 08:02:03 |
| gd-20210404exhibit991.htm | 293876 | 2021-04-28 08:02:03 |
| gd-20210428.htm | 35177 | 2021-04-28 08:02:03 |
| gd-20210428.xsd | 2531 | 2021-04-28 08:02:03 |
| gd-20210428_cal.xml | 815 | 2021-04-28 08:02:03 |
| gd-20210428_def.xml | 14685 | 2021-04-28 08:02:03 |
 gd-20210428_g1.gif | 2912 | 2021-04-28 08:02:03 |
| gd-20210428_htm.xml | 11626 | 2021-04-28 08:02:03 |
| gd-20210428_lab.xml | 28204 | 2021-04-28 08:02:03 |
| gd-20210428_pre.xml | 15184 | 2021-04-28 08:02:03 |
 image22.jpg | 27193 | 2021-04-28 08:02:03 |
| MetaLinks.json | 20757 | 2021-04-28 08:02:03 |
| R1.htm | 38851 | 2021-04-28 08:02:03 |
| report.css | 2767 | 2021-04-28 08:02:03 |
| Show.js | 1085 | 2021-04-28 08:02:03 |