Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912562-23-000004-index-headers.html | 2023-01-31 08:42:29 | |
| 0000912562-23-000004-index.html | 2023-01-31 08:42:29 | |
| 0000912562-23-000004.txt | 2023-01-31 08:42:29 | |
 0000912562-23-000004-xbrl.zip | 15600 | 2023-01-31 08:42:29 |
| exhibit9912022updatedguida.htm | 15855 | 2023-01-31 08:42:29 |
| FilingSummary.xml | 1700 | 2023-01-31 08:42:29 |
| Financial_Report.xlsx | 5740 | 2023-01-31 08:42:29 |
 gibraltar_wordmarkxbluexrgb.jpg | 147573 | 2023-01-31 08:42:29 |
| MetaLinks.json | 18014 | 2023-01-31 08:42:29 |
| R1.htm | 39672 | 2023-01-31 08:42:29 |
| report.css | 2767 | 2023-01-31 08:42:29 |
| rock-20230131.htm | 33820 | 2023-01-31 08:42:29 |
| rock-20230131.xsd | 2188 | 2023-01-31 08:42:29 |
| rock-20230131_htm.xml | 11013 | 2023-01-31 08:42:29 |
| rock-20230131_lab.xml | 25481 | 2023-01-31 08:42:29 |
| rock-20230131_pre.xml | 13214 | 2023-01-31 08:42:29 |
| Show.js | 1085 | 2023-01-31 08:42:29 |