Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912562-23-000023-index-headers.html | 2023-05-03 07:47:29 | |
| 0000912562-23-000023-index.html | 2023-05-03 07:47:29 | |
| 0000912562-23-000023.txt | 2023-05-03 07:47:29 | |
 0000912562-23-000023-xbrl.zip | 30794 | 2023-05-03 07:47:29 |
| exhibit991q12023earningsre.htm | 443882 | 2023-05-03 07:47:29 |
| FilingSummary.xml | 1700 | 2023-05-03 07:47:29 |
| Financial_Report.xlsx | 5742 | 2023-05-03 07:47:29 |
 gibraltar_wordmarkxbluexrgb.jpg | 147573 | 2023-05-03 07:47:29 |
| MetaLinks.json | 18014 | 2023-05-03 07:47:29 |
| R1.htm | 39671 | 2023-05-03 07:47:29 |
| report.css | 2767 | 2023-05-03 07:47:29 |
| rock-20230503.htm | 34412 | 2023-05-03 07:47:29 |
| rock-20230503.xsd | 2188 | 2023-05-03 07:47:29 |
| rock-20230503_htm.xml | 11029 | 2023-05-03 07:47:29 |
| rock-20230503_lab.xml | 25481 | 2023-05-03 07:47:29 |
| rock-20230503_pre.xml | 13214 | 2023-05-03 07:47:29 |
| Show.js | 1085 | 2023-05-03 07:47:29 |