Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912562-23-000007-index-headers.html | 2023-02-22 07:43:36 | |
| 0000912562-23-000007-index.html | 2023-02-22 07:43:36 | |
| 0000912562-23-000007.txt | 2023-02-22 07:43:36 | |
 0000912562-23-000007-xbrl.zip | 41777 | 2023-02-22 07:43:36 |
| exhibit991q42022earningsre.htm | 764129 | 2023-02-22 07:43:36 |
| FilingSummary.xml | 1700 | 2023-02-22 07:43:36 |
| Financial_Report.xlsx | 5740 | 2023-02-22 07:43:36 |
 gibraltar_wordmarkxbluexrgb.jpg | 147573 | 2023-02-22 07:43:36 |
| MetaLinks.json | 18014 | 2023-02-22 07:43:36 |
| R1.htm | 39672 | 2023-02-22 07:43:36 |
| report.css | 2767 | 2023-02-22 07:43:36 |
| rock-20230222.htm | 33861 | 2023-02-22 07:43:36 |
| rock-20230222.xsd | 2188 | 2023-02-22 07:43:36 |
| rock-20230222_htm.xml | 11013 | 2023-02-22 07:43:36 |
| rock-20230222_lab.xml | 25481 | 2023-02-22 07:43:36 |
| rock-20230222_pre.xml | 13214 | 2023-02-22 07:43:36 |
| Show.js | 1085 | 2023-02-22 07:43:36 |