Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-12-075483-index-headers.html | 2012-02-23 16:52:15 | |
| 0001193125-12-075483-index.html | 2012-02-23 16:52:15 | |
| 0001193125-12-075483.txt | 2012-02-23 16:52:15 | |
 0001193125-12-075483-xbrl.zip | 265306 | 2012-02-23 16:52:15 |
| d257600d10k.htm | 1850395 | 2012-02-23 16:52:15 |
| d257600dex10100.htm | 96331 | 2012-02-23 16:52:15 |
| d257600dex1051.htm | 77751 | 2012-02-23 16:52:15 |
| d257600dex1052.htm | 78269 | 2012-02-23 16:52:15 |
| d257600dex2110.htm | 28703 | 2012-02-23 16:52:15 |
| d257600dex2310.htm | 1456 | 2012-02-23 16:52:15 |
| d257600dex3110.htm | 6874 | 2012-02-23 16:52:15 |
| d257600dex3120.htm | 6854 | 2012-02-23 16:52:15 |
| d257600dex3210.htm | 4306 | 2012-02-23 16:52:15 |
| d257600dex3220.htm | 4343 | 2012-02-23 16:52:15 |
| FilingSummary.xml | 61586 | 2012-02-23 16:52:15 |
| Financial_Report.xls | 2142730 | 2012-02-23 16:52:15 |
 g257600g39y40.jpg | 7546 | 2012-02-23 16:52:15 |
 g257600g97n61.jpg | 43812 | 2012-02-23 16:52:15 |
| gti-20111231.xml | 2846631 | 2012-02-23 16:52:15 |
| gti-20111231.xsd | 92693 | 2012-02-23 16:52:15 |
| gti-20111231_cal.xml | 111741 | 2012-02-23 16:52:15 |
| gti-20111231_def.xml | 395814 | 2012-02-23 16:52:15 |
| gti-20111231_lab.xml | 825779 | 2012-02-23 16:52:15 |
| gti-20111231_pre.xml | 752775 | 2012-02-23 16:52:15 |
| R1.htm | 39528 | 2012-02-23 16:52:15 |
| R10.htm | 61223 | 2012-02-23 16:52:15 |
| R100.htm | 83526 | 2012-02-23 16:52:15 |
| R101.htm | 12055 | 2012-02-23 16:52:15 |
| R102.htm | 34177 | 2012-02-23 16:52:15 |
| R103.htm | 43389 | 2012-02-23 16:52:15 |
| R104.htm | 72790 | 2012-02-23 16:52:15 |
| R105.htm | 22175 | 2012-02-23 16:52:15 |
| R106.htm | 22589 | 2012-02-23 16:52:15 |
| R107.htm | 22748 | 2012-02-23 16:52:15 |
| R108.htm | 25972 | 2012-02-23 16:52:15 |
| R11.htm | 66295 | 2012-02-23 16:52:15 |
| R12.htm | 6695 | 2012-02-23 16:52:15 |
| R13.htm | 37866 | 2012-02-23 16:52:15 |
| R14.htm | 25478 | 2012-02-23 16:52:15 |
| R15.htm | 57648 | 2012-02-23 16:52:15 |
| R16.htm | 18076 | 2012-02-23 16:52:15 |
| R17.htm | 16942 | 2012-02-23 16:52:15 |
| R18.htm | 58399 | 2012-02-23 16:52:15 |
| R19.htm | 13045 | 2012-02-23 16:52:15 |
| R2.htm | 142963 | 2012-02-23 16:52:15 |
| R20.htm | 345430 | 2012-02-23 16:52:15 |
| R21.htm | 44056 | 2012-02-23 16:52:15 |
| R22.htm | 12725 | 2012-02-23 16:52:15 |
| R23.htm | 110888 | 2012-02-23 16:52:15 |
| R24.htm | 15718 | 2012-02-23 16:52:15 |
| R25.htm | 17121 | 2012-02-23 16:52:15 |
| R26.htm | 165606 | 2012-02-23 16:52:15 |
| R27.htm | 17065 | 2012-02-23 16:52:15 |
| R28.htm | 54183 | 2012-02-23 16:52:15 |
| R29.htm | 69439 | 2012-02-23 16:52:15 |
| R3.htm | 31760 | 2012-02-23 16:52:15 |
| R30.htm | 36425 | 2012-02-23 16:52:15 |
| R31.htm | 24385 | 2012-02-23 16:52:15 |
| R32.htm | 52929 | 2012-02-23 16:52:15 |
| R33.htm | 16402 | 2012-02-23 16:52:15 |
| R34.htm | 14059 | 2012-02-23 16:52:15 |
| R35.htm | 61285 | 2012-02-23 16:52:15 |
| R36.htm | 12133 | 2012-02-23 16:52:15 |
| R37.htm | 355889 | 2012-02-23 16:52:15 |
| R38.htm | 41218 | 2012-02-23 16:52:15 |
| R39.htm | 9199 | 2012-02-23 16:52:15 |
| R4.htm | 79193 | 2012-02-23 16:52:15 |
| R40.htm | 112667 | 2012-02-23 16:52:15 |
| R41.htm | 12629 | 2012-02-23 16:52:15 |
| R42.htm | 13096 | 2012-02-23 16:52:15 |
| R43.htm | 35758 | 2012-02-23 16:52:15 |
| R44.htm | 13558 | 2012-02-23 16:52:15 |
| R45.htm | 15434 | 2012-02-23 16:52:15 |
| R46.htm | 128269 | 2012-02-23 16:52:15 |
| R47.htm | 36184 | 2012-02-23 16:52:15 |
| R48.htm | 47639 | 2012-02-23 16:52:15 |
| R49.htm | 13426 | 2012-02-23 16:52:15 |
| R5.htm | 183573 | 2012-02-23 16:52:15 |
| R50.htm | 14105 | 2012-02-23 16:52:15 |
| R51.htm | 10939 | 2012-02-23 16:52:15 |
| R52.htm | 23698 | 2012-02-23 16:52:15 |
| R53.htm | 33001 | 2012-02-23 16:52:15 |
| R54.htm | 10661 | 2012-02-23 16:52:15 |
| R55.htm | 10611 | 2012-02-23 16:52:15 |
| R56.htm | 19053 | 2012-02-23 16:52:15 |
| R57.htm | 9462 | 2012-02-23 16:52:15 |
| R58.htm | 27955 | 2012-02-23 16:52:15 |
| R59.htm | 16974 | 2012-02-23 16:52:15 |
| R6.htm | 6257 | 2012-02-23 16:52:15 |
| R60.htm | 19958 | 2012-02-23 16:52:15 |
| R61.htm | 59519 | 2012-02-23 16:52:15 |
| R62.htm | 11380 | 2012-02-23 16:52:15 |
| R63.htm | 33517 | 2012-02-23 16:52:15 |
| R64.htm | 23409 | 2012-02-23 16:52:15 |
| R65.htm | 13810 | 2012-02-23 16:52:15 |
| R66.htm | 11564 | 2012-02-23 16:52:15 |
| R67.htm | 10068 | 2012-02-23 16:52:15 |
| R68.htm | 30333 | 2012-02-23 16:52:15 |
| R69.htm | 6853 | 2012-02-23 16:52:15 |
| R7.htm | 120790 | 2012-02-23 16:52:15 |
| R70.htm | 15375 | 2012-02-23 16:52:15 |
| R71.htm | 4877 | 2012-02-23 16:52:15 |
| R72.htm | 90878 | 2012-02-23 16:52:15 |
| R73.htm | 14705 | 2012-02-23 16:52:15 |
| R74.htm | 13866 | 2012-02-23 16:52:15 |
| R75.htm | 11735 | 2012-02-23 16:52:15 |
| R76.htm | 27146 | 2012-02-23 16:52:15 |
| R77.htm | 58907 | 2012-02-23 16:52:15 |
| R78.htm | 42319 | 2012-02-23 16:52:15 |
| R79.htm | 40317 | 2012-02-23 16:52:15 |
| R8.htm | 6897 | 2012-02-23 16:52:15 |
| R80.htm | 115636 | 2012-02-23 16:52:15 |
| R81.htm | 56128 | 2012-02-23 16:52:15 |
| R82.htm | 18796 | 2012-02-23 16:52:15 |
| R83.htm | 18312 | 2012-02-23 16:52:15 |
| R84.htm | 19796 | 2012-02-23 16:52:15 |
| R85.htm | 18467 | 2012-02-23 16:52:15 |
| R86.htm | 18449 | 2012-02-23 16:52:15 |
| R87.htm | 29832 | 2012-02-23 16:52:15 |
| R88.htm | 30843 | 2012-02-23 16:52:15 |
| R89.htm | 39753 | 2012-02-23 16:52:15 |
| R9.htm | 60759 | 2012-02-23 16:52:15 |
| R90.htm | 72257 | 2012-02-23 16:52:15 |
| R91.htm | 20860 | 2012-02-23 16:52:15 |
| R92.htm | 18883 | 2012-02-23 16:52:15 |
| R93.htm | 29838 | 2012-02-23 16:52:15 |
| R94.htm | 94011 | 2012-02-23 16:52:15 |
| R95.htm | 35968 | 2012-02-23 16:52:15 |
| R96.htm | 27089 | 2012-02-23 16:52:15 |
| R97.htm | 31409 | 2012-02-23 16:52:15 |
| R98.htm | 26890 | 2012-02-23 16:52:15 |
| R99.htm | 12689 | 2012-02-23 16:52:15 |
| report.css | 2721 | 2012-02-23 16:52:15 |
| Show.js | 6423 | 2012-02-23 16:52:15 |