Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001445305-14-004917-index-headers.html | 2014-11-06 20:58:39 | |
| 0001445305-14-004917-index.html | 2014-11-06 20:58:39 | |
| 0001445305-14-004917.txt | 2014-11-06 20:58:39 | |
 0001445305-14-004917-xbrl.zip | 282004 | 2014-11-06 20:58:39 |
| FilingSummary.xml | 34530 | 2014-11-06 20:58:39 |
| Financial_Report.xls | 3173625 | 2014-11-06 20:58:39 |
| Financial_Report.xlsx | 330791 | 2014-11-06 20:58:39 |
| gpor-09302014x10q.htm | 1915387 | 2014-11-06 20:58:39 |
| gpor-20140930.xml | 3598669 | 2014-11-06 20:58:39 |
| gpor-20140930.xsd | 58334 | 2014-11-06 20:58:39 |
| gpor-20140930xex101.htm | 115492 | 2014-11-06 20:58:39 |
| gpor-20140930xex102.htm | 147542 | 2014-11-06 20:58:39 |
| gpor-20140930xex311.htm | 12554 | 2014-11-06 20:58:39 |
| gpor-20140930xex312.htm | 12503 | 2014-11-06 20:58:39 |
| gpor-20140930xex321.htm | 6918 | 2014-11-06 20:58:39 |
| gpor-20140930xex322.htm | 6881 | 2014-11-06 20:58:39 |
| gpor-20140930_cal.xml | 89048 | 2014-11-06 20:58:39 |
| gpor-20140930_def.xml | 270791 | 2014-11-06 20:58:39 |
| gpor-20140930_lab.xml | 744763 | 2014-11-06 20:58:39 |
| gpor-20140930_pre.xml | 466611 | 2014-11-06 20:58:39 |
| R1.htm | 26701 | 2014-11-06 20:58:39 |
| R10.htm | 50563 | 2014-11-06 20:58:39 |
| R11.htm | 135435 | 2014-11-06 20:58:39 |
| R12.htm | 21105 | 2014-11-06 20:58:39 |
| R13.htm | 40510 | 2014-11-06 20:58:39 |
| R14.htm | 58230 | 2014-11-06 20:58:39 |
| R15.htm | 70630 | 2014-11-06 20:58:39 |
| R16.htm | 25117 | 2014-11-06 20:58:39 |
| R17.htm | 50981 | 2014-11-06 20:58:39 |
| R18.htm | 29003 | 2014-11-06 20:58:39 |
| R19.htm | 8446 | 2014-11-06 20:58:39 |
| R2.htm | 136126 | 2014-11-06 20:58:39 |
| R20.htm | 924412 | 2014-11-06 20:58:39 |
| R21.htm | 12865 | 2014-11-06 20:58:39 |
| R22.htm | 7796 | 2014-11-06 20:58:39 |
| R23.htm | 9238 | 2014-11-06 20:58:39 |
| R24.htm | 16040 | 2014-11-06 20:58:39 |
| R25.htm | 47940 | 2014-11-06 20:58:39 |
| R26.htm | 115460 | 2014-11-06 20:58:39 |
| R27.htm | 21023 | 2014-11-06 20:58:39 |
| R28.htm | 43567 | 2014-11-06 20:58:39 |
| R29.htm | 57470 | 2014-11-06 20:58:39 |
| R3.htm | 39825 | 2014-11-06 20:58:39 |
| R30.htm | 68786 | 2014-11-06 20:58:39 |
| R31.htm | 12128 | 2014-11-06 20:58:39 |
| R32.htm | 48239 | 2014-11-06 20:58:39 |
| R33.htm | 22281 | 2014-11-06 20:58:39 |
| R34.htm | 928428 | 2014-11-06 20:58:39 |
| R35.htm | 40574 | 2014-11-06 20:58:39 |
| R36.htm | 23667 | 2014-11-06 20:58:39 |
| R37.htm | 33410 | 2014-11-06 20:58:39 |
| R38.htm | 11771 | 2014-11-06 20:58:39 |
| R39.htm | 22025 | 2014-11-06 20:58:39 |
| R4.htm | 89196 | 2014-11-06 20:58:39 |
| R40.htm | 53106 | 2014-11-06 20:58:39 |
| R41.htm | 20202 | 2014-11-06 20:58:39 |
| R42.htm | 10198 | 2014-11-06 20:58:39 |
| R43.htm | 136886 | 2014-11-06 20:58:39 |
| R44.htm | 22578 | 2014-11-06 20:58:39 |
| R45.htm | 34196 | 2014-11-06 20:58:39 |
| R46.htm | 118787 | 2014-11-06 20:58:39 |
| R47.htm | 15134 | 2014-11-06 20:58:39 |
| R48.htm | 51521 | 2014-11-06 20:58:39 |
| R49.htm | 17962 | 2014-11-06 20:58:39 |
| R5.htm | 29453 | 2014-11-06 20:58:39 |
| R50.htm | 30375 | 2014-11-06 20:58:39 |
| R51.htm | 30403 | 2014-11-06 20:58:39 |
| R52.htm | 52268 | 2014-11-06 20:58:39 |
| R53.htm | 20101 | 2014-11-06 20:58:39 |
| R54.htm | 8702 | 2014-11-06 20:58:39 |
| R55.htm | 15778 | 2014-11-06 20:58:39 |
| R56.htm | 18791 | 2014-11-06 20:58:39 |
| R57.htm | 6995 | 2014-11-06 20:58:39 |
| R58.htm | 24977 | 2014-11-06 20:58:39 |
| R59.htm | 19066 | 2014-11-06 20:58:39 |
| R6.htm | 9949 | 2014-11-06 20:58:39 |
| R60.htm | 15663 | 2014-11-06 20:58:39 |
| R61.htm | 208817 | 2014-11-06 20:58:39 |
| R62.htm | 101714 | 2014-11-06 20:58:39 |
| R63.htm | 52504 | 2014-11-06 20:58:39 |
| R64.htm | 33028 | 2014-11-06 20:58:39 |
| R65.htm | 11193 | 2014-11-06 20:58:39 |
| R7.htm | 53106 | 2014-11-06 20:58:39 |
| R8.htm | 128313 | 2014-11-06 20:58:39 |
| R9.htm | 25605 | 2014-11-06 20:58:39 |
| report.css | 2740 | 2014-11-06 20:58:39 |
| Show.js | 1410 | 2014-11-06 20:58:39 |