Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001045309-20-000067-index-headers.html | 2020-05-12 17:21:38 | |
| 0001045309-20-000067-index.html | 2020-05-12 17:21:38 | |
| 0001045309-20-000067.txt | 2020-05-12 17:21:38 | |
 0001045309-20-000067-xbrl.zip | 14909 | 2020-05-12 17:21:38 |
| a8-k2020annualmeeting.htm | 73305 | 2020-05-12 17:21:38 |
| a8-k2020annualmeeting_htm.xml | 4329 | 2020-05-12 17:21:38 |
| FilingSummary.xml | 1768 | 2020-05-12 17:21:38 |
| Financial_Report.xlsx | 5784 | 2020-05-12 17:21:38 |
| gra-20200514.xsd | 4748 | 2020-05-12 17:21:38 |
| gra-20200514_cal.xml | 670 | 2020-05-12 17:21:38 |
| gra-20200514_def.xml | 1520 | 2020-05-12 17:21:38 |
| gra-20200514_lab.xml | 28784 | 2020-05-12 17:21:38 |
| gra-20200514_pre.xml | 15046 | 2020-05-12 17:21:38 |
| MetaLinks.json | 20231 | 2020-05-12 17:21:38 |
| R1.htm | 38723 | 2020-05-12 17:21:38 |
| report.css | 2767 | 2020-05-12 17:21:38 |
| Show.js | 1085 | 2020-05-12 17:21:38 |