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| 0001373670-17-000014-index.html | 2017-05-08 16:19:16 | |
| 0001373670-17-000014.txt | 2017-05-08 16:19:16 | |
 0001373670-17-000014-xbrl.zip | 150658 | 2017-05-08 16:19:16 |
| a331201710-qgrbk.htm | 795694 | 2017-05-08 16:19:16 |
| exhibit311certificationofc.htm | 13122 | 2017-05-08 16:19:16 |
| exhibit312certificationofc.htm | 13297 | 2017-05-08 16:19:16 |
| exhibit321certificationofc.htm | 6409 | 2017-05-08 16:19:16 |
| exhibit322certificationofc.htm | 6302 | 2017-05-08 16:19:16 |
| FilingSummary.xml | 26346 | 2017-05-08 16:19:16 |
| Financial_Report.xlsx | 60987 | 2017-05-08 16:19:16 |
| grbk-20170331.xml | 885811 | 2017-05-08 16:19:16 |
| grbk-20170331.xsd | 40725 | 2017-05-08 16:19:16 |
| grbk-20170331_cal.xml | 47054 | 2017-05-08 16:19:16 |
| grbk-20170331_def.xml | 192819 | 2017-05-08 16:19:16 |
| grbk-20170331_lab.xml | 555035 | 2017-05-08 16:19:16 |
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| report.css | 2767 | 2017-05-08 16:19:16 |
| Show.js | 1410 | 2017-05-08 16:19:16 |