Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000912562-23-000012-index-headers.html | 2023-03-24 15:29:38 | |
| 0000912562-23-000012-index.html | 2023-03-24 15:29:38 | |
| 0000912562-23-000012.txt | 2023-03-24 15:29:38 | |
 0000912562-23-000012-xbrl.zip | 2055670 | 2023-03-24 15:29:38 |
| FilingSummary.xml | 3521 | 2023-03-24 15:29:38 |
| Financial_Report.xlsx | 9727 | 2023-03-24 15:29:38 |
| MetaLinks.json | 149077 | 2023-03-24 15:29:38 |
| R1.htm | 10849 | 2023-03-24 15:29:38 |
| R2.htm | 150155 | 2023-03-24 15:29:38 |
| report.css | 2767 | 2023-03-24 15:29:38 |
| rock-20230324.htm | 1875457 | 2023-03-24 15:29:38 |
| rock-20230324.xsd | 4431 | 2023-03-24 15:29:38 |
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| rock-20230324_htm.xml | 112080 | 2023-03-24 15:29:38 |
| rock-20230324_lab.xml | 9508 | 2023-03-24 15:29:38 |
| rock-20230324_pre.xml | 5203 | 2023-03-24 15:29:38 |
| Show.js | 1085 | 2023-03-24 15:29:38 |