Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001453818-18-000021-index-headers.html | 2018-05-11 15:48:15 | |
| 0001453818-18-000021-index.html | 2018-05-11 15:48:15 | |
| 0001453818-18-000021.txt | 2018-05-11 15:48:15 | |
 0001453818-18-000021-xbrl.zip | 175980 | 2018-05-11 15:48:15 |
| FilingSummary.xml | 31682 | 2018-05-11 15:48:15 |
| Financial_Report.xlsx | 60879 | 2018-05-11 15:48:15 |
| hgr03312018exhibit311.htm | 15250 | 2018-05-11 15:48:15 |
| hgr03312018exhibit312.htm | 15574 | 2018-05-11 15:48:15 |
| hgr03312018exhibit321.htm | 11329 | 2018-05-11 15:48:15 |
| hgri-20180331.xml | 1307088 | 2018-05-11 15:48:15 |
| hgri-20180331.xsd | 43530 | 2018-05-11 15:48:15 |
| hgri-20180331_cal.xml | 75765 | 2018-05-11 15:48:15 |
| hgri-20180331_def.xml | 196609 | 2018-05-11 15:48:15 |
| hgri-20180331_lab.xml | 573170 | 2018-05-11 15:48:15 |
| hgri-20180331_pre.xml | 328990 | 2018-05-11 15:48:15 |
| hgr_0331201810-q.htm | 1293145 | 2018-05-11 15:48:15 |
| R1.htm | 20256 | 2018-05-11 15:48:15 |
| R10.htm | 130298 | 2018-05-11 15:48:15 |
| R11.htm | 49570 | 2018-05-11 15:48:15 |
| R12.htm | 42672 | 2018-05-11 15:48:15 |
| R13.htm | 27325 | 2018-05-11 15:48:15 |
| R14.htm | 102333 | 2018-05-11 15:48:15 |
| R15.htm | 21590 | 2018-05-11 15:48:15 |
| R16.htm | 5310 | 2018-05-11 15:48:15 |
| R17.htm | 7286 | 2018-05-11 15:48:15 |
| R18.htm | 28970 | 2018-05-11 15:48:15 |
| R19.htm | 18949 | 2018-05-11 15:48:15 |
| R2.htm | 74849 | 2018-05-11 15:48:15 |
| R20.htm | 14771 | 2018-05-11 15:48:15 |
| R21.htm | 69250 | 2018-05-11 15:48:15 |
| R22.htm | 124505 | 2018-05-11 15:48:15 |
| R23.htm | 47114 | 2018-05-11 15:48:15 |
| R24.htm | 42264 | 2018-05-11 15:48:15 |
| R25.htm | 18689 | 2018-05-11 15:48:15 |
| R26.htm | 100673 | 2018-05-11 15:48:15 |
| R27.htm | 20802 | 2018-05-11 15:48:15 |
| R28.htm | 20306 | 2018-05-11 15:48:15 |
| R29.htm | 14354 | 2018-05-11 15:48:15 |
| R3.htm | 18987 | 2018-05-11 15:48:15 |
| R30.htm | 12173 | 2018-05-11 15:48:15 |
| R31.htm | 15377 | 2018-05-11 15:48:15 |
| R32.htm | 11031 | 2018-05-11 15:48:15 |
| R33.htm | 17613 | 2018-05-11 15:48:15 |
| R34.htm | 20045 | 2018-05-11 15:48:15 |
| R35.htm | 32779 | 2018-05-11 15:48:15 |
| R36.htm | 16007 | 2018-05-11 15:48:15 |
| R37.htm | 39186 | 2018-05-11 15:48:15 |
| R38.htm | 61299 | 2018-05-11 15:48:15 |
| R39.htm | 17008 | 2018-05-11 15:48:15 |
| R4.htm | 72442 | 2018-05-11 15:48:15 |
| R40.htm | 28218 | 2018-05-11 15:48:15 |
| R41.htm | 30949 | 2018-05-11 15:48:15 |
| R42.htm | 27513 | 2018-05-11 15:48:15 |
| R43.htm | 14718 | 2018-05-11 15:48:15 |
| R44.htm | 13010 | 2018-05-11 15:48:15 |
| R45.htm | 30024 | 2018-05-11 15:48:15 |
| R46.htm | 12904 | 2018-05-11 15:48:15 |
| R47.htm | 15159 | 2018-05-11 15:48:15 |
| R48.htm | 36087 | 2018-05-11 15:48:15 |
| R49.htm | 17561 | 2018-05-11 15:48:15 |
| R5.htm | 49552 | 2018-05-11 15:48:15 |
| R50.htm | 14028 | 2018-05-11 15:48:15 |
| R6.htm | 74946 | 2018-05-11 15:48:15 |
| R7.htm | 30329 | 2018-05-11 15:48:15 |
| R8.htm | 30851 | 2018-05-11 15:48:15 |
| R9.htm | 68981 | 2018-05-11 15:48:15 |
| report.css | 2767 | 2018-05-11 15:48:15 |
| Show.js | 1410 | 2018-05-11 15:48:15 |