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| 0000912562-24-000012-index.html | 2024-02-21 08:55:45 | |
| 0000912562-24-000012.txt | 2024-02-21 08:55:45 | |
 0000912562-24-000012-xbrl.zip | 485311 | 2024-02-21 08:55:45 |
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| R99.htm | 17089 | 2024-02-21 08:55:45 |
| report.css | 2768 | 2024-02-21 08:55:45 |
| rock-20231231.htm | 2044009 | 2024-02-21 08:55:45 |
| rock-20231231.xsd | 77478 | 2024-02-21 08:55:45 |
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 rock-20231231_g1.jpg | 147573 | 2024-02-21 08:55:45 |
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| rock-20231231_htm.xml | 2019170 | 2024-02-21 08:55:45 |
| rock-20231231_lab.xml | 943395 | 2024-02-21 08:55:45 |
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| Show.js | 1086 | 2024-02-21 08:55:45 |