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|---|---|---|
 0000912562-20-000031-index-headers.html | 2020-10-29 15:50:52 | |
| 0000912562-20-000031-index.html | 2020-10-29 15:50:52 | |
| 0000912562-20-000031.txt | 2020-10-29 15:50:52 | |
 0000912562-20-000031-xbrl.zip | 32215 | 2020-10-29 15:50:52 |
| exhibit991q32020earnin.htm | 479072 | 2020-10-29 15:50:52 |
| FilingSummary.xml | 1768 | 2020-10-29 15:50:52 |
| Financial_Report.xlsx | 5493 | 2020-10-29 15:50:52 |
 gibindcolorlogonotaga031.gif | 13063 | 2020-10-29 15:50:52 |
| MetaLinks.json | 18225 | 2020-10-29 15:50:52 |
| R1.htm | 40214 | 2020-10-29 15:50:52 |
| report.css | 2767 | 2020-10-29 15:50:52 |
| rock-20201029.htm | 37981 | 2020-10-29 15:50:52 |
| rock-20201029.xsd | 2709 | 2020-10-29 15:50:52 |
| rock-20201029_cal.xml | 753 | 2020-10-29 15:50:52 |
| rock-20201029_def.xml | 1699 | 2020-10-29 15:50:52 |
| rock-20201029_htm.xml | 11404 | 2020-10-29 15:50:52 |
| rock-20201029_lab.xml | 25619 | 2020-10-29 15:50:52 |
| rock-20201029_pre.xml | 13352 | 2020-10-29 15:50:52 |
| Show.js | 1085 | 2020-10-29 15:50:52 |