Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001373670-17-000036-index-headers.html | 2017-11-06 17:27:19 | |
| 0001373670-17-000036-index.html | 2017-11-06 17:27:19 | |
| 0001373670-17-000036.txt | 2017-11-06 17:27:19 | |
 0001373670-17-000036-xbrl.zip | 180535 | 2017-11-06 17:27:19 |
| a930201710-qgrbk.htm | 1138621 | 2017-11-06 17:27:19 |
| exhibit311certificationofc.htm | 13127 | 2017-11-06 17:27:19 |
| exhibit312certificationofc.htm | 13302 | 2017-11-06 17:27:19 |
| exhibit321certificationofc.htm | 6418 | 2017-11-06 17:27:19 |
| exhibit322certificationofc.htm | 6311 | 2017-11-06 17:27:19 |
| FilingSummary.xml | 30509 | 2017-11-06 17:27:19 |
| Financial_Report.xlsx | 72860 | 2017-11-06 17:27:19 |
| grbk-20170930.xml | 1278085 | 2017-11-06 17:27:19 |
| grbk-20170930.xsd | 46783 | 2017-11-06 17:27:19 |
| grbk-20170930_cal.xml | 59931 | 2017-11-06 17:27:19 |
| grbk-20170930_def.xml | 220317 | 2017-11-06 17:27:19 |
| grbk-20170930_lab.xml | 616604 | 2017-11-06 17:27:19 |
| grbk-20170930_pre.xml | 361986 | 2017-11-06 17:27:19 |
| R1.htm | 20240 | 2017-11-06 17:27:19 |
| R10.htm | 49766 | 2017-11-06 17:27:19 |
| R11.htm | 76836 | 2017-11-06 17:27:19 |
| R12.htm | 6408 | 2017-11-06 17:27:19 |
| R13.htm | 57587 | 2017-11-06 17:27:19 |
| R14.htm | 9365 | 2017-11-06 17:27:19 |
| R15.htm | 22870 | 2017-11-06 17:27:19 |
| R16.htm | 12469 | 2017-11-06 17:27:19 |
| R17.htm | 29316 | 2017-11-06 17:27:19 |
| R18.htm | 100935 | 2017-11-06 17:27:19 |
| R19.htm | 46891 | 2017-11-06 17:27:19 |
| R2.htm | 69422 | 2017-11-06 17:27:19 |
| R20.htm | 53239 | 2017-11-06 17:27:19 |
| R21.htm | 34212 | 2017-11-06 17:27:19 |
| R22.htm | 38214 | 2017-11-06 17:27:19 |
| R23.htm | 55081 | 2017-11-06 17:27:19 |
| R24.htm | 69994 | 2017-11-06 17:27:19 |
| R25.htm | 51627 | 2017-11-06 17:27:19 |
| R26.htm | 24880 | 2017-11-06 17:27:19 |
| R27.htm | 97746 | 2017-11-06 17:27:19 |
| R28.htm | 36913 | 2017-11-06 17:27:19 |
| R29.htm | 25880 | 2017-11-06 17:27:19 |
| R3.htm | 8563 | 2017-11-06 17:27:19 |
| R30.htm | 42998 | 2017-11-06 17:27:19 |
| R31.htm | 20630 | 2017-11-06 17:27:19 |
| R32.htm | 34828 | 2017-11-06 17:27:19 |
| R33.htm | 11961 | 2017-11-06 17:27:19 |
| R34.htm | 12292 | 2017-11-06 17:27:19 |
| R35.htm | 90132 | 2017-11-06 17:27:19 |
| R36.htm | 31606 | 2017-11-06 17:27:19 |
| R37.htm | 68367 | 2017-11-06 17:27:19 |
| R38.htm | 12135 | 2017-11-06 17:27:19 |
| R39.htm | 7488 | 2017-11-06 17:27:19 |
| R4.htm | 59529 | 2017-11-06 17:27:19 |
| R40.htm | 25355 | 2017-11-06 17:27:19 |
| R41.htm | 34702 | 2017-11-06 17:27:19 |
| R42.htm | 36702 | 2017-11-06 17:27:19 |
| R43.htm | 20190 | 2017-11-06 17:27:19 |
| R44.htm | 8267 | 2017-11-06 17:27:19 |
| R45.htm | 114905 | 2017-11-06 17:27:19 |
| R46.htm | 5900 | 2017-11-06 17:27:19 |
| R47.htm | 11414 | 2017-11-06 17:27:19 |
| R48.htm | 44301 | 2017-11-06 17:27:19 |
| R5.htm | 83554 | 2017-11-06 17:27:19 |
| R6.htm | 37101 | 2017-11-06 17:27:19 |
| R7.htm | 53288 | 2017-11-06 17:27:19 |
| R8.htm | 43843 | 2017-11-06 17:27:19 |
| R9.htm | 39164 | 2017-11-06 17:27:19 |
| report.css | 2767 | 2017-11-06 17:27:19 |
| Show.js | 1410 | 2017-11-06 17:27:19 |