Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000104889-16-000088-index-headers.html | 2016-02-26 15:23:00 | |
| 0000104889-16-000088-index.html | 2016-02-26 15:23:00 | |
| 0000104889-16-000088.txt | 2016-02-26 15:23:00 | |
 0000104889-16-000088-xbrl.zip | 665626 | 2016-02-26 15:23:00 |
| d10k.htm | 3492074 | 2016-02-26 15:23:00 |
| dex101.htm | 92773 | 2016-02-26 15:23:00 |
| dex21.htm | 298210 | 2016-02-26 15:23:00 |
| dex23.htm | 2872 | 2016-02-26 15:23:00 |
| dex24.htm | 14889 | 2016-02-26 15:23:00 |
| dex311.htm | 9806 | 2016-02-26 15:23:00 |
| dex312.htm | 9778 | 2016-02-26 15:23:00 |
| dex32.htm | 6723 | 2016-02-26 15:23:00 |
| FilingSummary.xml | 71813 | 2016-02-26 15:23:00 |
| Financial_Report.xlsx | 208220 | 2016-02-26 15:23:00 |
| ghc-20151231.xml | 6052878 | 2016-02-26 15:23:00 |
| ghc-20151231.xsd | 139215 | 2016-02-26 15:23:00 |
| ghc-20151231_cal.xml | 252628 | 2016-02-26 15:23:00 |
| ghc-20151231_def.xml | 937765 | 2016-02-26 15:23:00 |
| ghc-20151231_lab.xml | 1930160 | 2016-02-26 15:23:00 |
| ghc-20151231_pre.xml | 1250376 | 2016-02-26 15:23:00 |
 ghcgraph2015.jpg | 49275 | 2016-02-26 15:23:00 |
| R1.htm | 34951 | 2016-02-26 15:23:00 |
| R10.htm | 81284 | 2016-02-26 15:23:00 |
| R100.htm | 131921 | 2016-02-26 15:23:00 |
| R101.htm | 31263 | 2016-02-26 15:23:00 |
| R102.htm | 71846 | 2016-02-26 15:23:00 |
| R103.htm | 12265 | 2016-02-26 15:23:00 |
| R104.htm | 19717 | 2016-02-26 15:23:00 |
| R105.htm | 68086 | 2016-02-26 15:23:00 |
| R106.htm | 66113 | 2016-02-26 15:23:00 |
| R107.htm | 18943 | 2016-02-26 15:23:00 |
| R108.htm | 119137 | 2016-02-26 15:23:00 |
| R109.htm | 112660 | 2016-02-26 15:23:00 |
| R11.htm | 22046 | 2016-02-26 15:23:00 |
| R110.htm | 67999 | 2016-02-26 15:23:00 |
| R12.htm | 50599 | 2016-02-26 15:23:00 |
| R13.htm | 22323 | 2016-02-26 15:23:00 |
| R14.htm | 61774 | 2016-02-26 15:23:00 |
| R15.htm | 226374 | 2016-02-26 15:23:00 |
| R16.htm | 183433 | 2016-02-26 15:23:00 |
| R17.htm | 30857 | 2016-02-26 15:23:00 |
| R18.htm | 61301 | 2016-02-26 15:23:00 |
| R19.htm | 5677 | 2016-02-26 15:23:00 |
| R2.htm | 107477 | 2016-02-26 15:23:00 |
| R20.htm | 169372 | 2016-02-26 15:23:00 |
| R21.htm | 415393 | 2016-02-26 15:23:00 |
| R22.htm | 36061 | 2016-02-26 15:23:00 |
| R23.htm | 230032 | 2016-02-26 15:23:00 |
| R24.htm | 15595 | 2016-02-26 15:23:00 |
| R25.htm | 28920 | 2016-02-26 15:23:00 |
| R26.htm | 252556 | 2016-02-26 15:23:00 |
| R27.htm | 322323 | 2016-02-26 15:23:00 |
| R28.htm | 129124 | 2016-02-26 15:23:00 |
| R29.htm | 76231 | 2016-02-26 15:23:00 |
| R3.htm | 67272 | 2016-02-26 15:23:00 |
| R30.htm | 15161 | 2016-02-26 15:23:00 |
| R31.htm | 54464 | 2016-02-26 15:23:00 |
| R32.htm | 19934 | 2016-02-26 15:23:00 |
| R33.htm | 46968 | 2016-02-26 15:23:00 |
| R34.htm | 217197 | 2016-02-26 15:23:00 |
| R35.htm | 179018 | 2016-02-26 15:23:00 |
| R36.htm | 19228 | 2016-02-26 15:23:00 |
| R37.htm | 56924 | 2016-02-26 15:23:00 |
| R38.htm | 141584 | 2016-02-26 15:23:00 |
| R39.htm | 418648 | 2016-02-26 15:23:00 |
| R4.htm | 127913 | 2016-02-26 15:23:00 |
| R40.htm | 30613 | 2016-02-26 15:23:00 |
| R41.htm | 233433 | 2016-02-26 15:23:00 |
| R42.htm | 11560 | 2016-02-26 15:23:00 |
| R43.htm | 240570 | 2016-02-26 15:23:00 |
| R44.htm | 322746 | 2016-02-26 15:23:00 |
| R45.htm | 15649 | 2016-02-26 15:23:00 |
| R46.htm | 22945 | 2016-02-26 15:23:00 |
| R47.htm | 72875 | 2016-02-26 15:23:00 |
| R48.htm | 64722 | 2016-02-26 15:23:00 |
| R49.htm | 9219 | 2016-02-26 15:23:00 |
| R5.htm | 45546 | 2016-02-26 15:23:00 |
| R50.htm | 34979 | 2016-02-26 15:23:00 |
| R51.htm | 88147 | 2016-02-26 15:23:00 |
| R52.htm | 11042 | 2016-02-26 15:23:00 |
| R53.htm | 5253 | 2016-02-26 15:23:00 |
| R54.htm | 36444 | 2016-02-26 15:23:00 |
| R55.htm | 11962 | 2016-02-26 15:23:00 |
| R56.htm | 21109 | 2016-02-26 15:23:00 |
| R57.htm | 148503 | 2016-02-26 15:23:00 |
| R58.htm | 45054 | 2016-02-26 15:23:00 |
| R59.htm | 6758 | 2016-02-26 15:23:00 |
| R6.htm | 125009 | 2016-02-26 15:23:00 |
| R60.htm | 6423 | 2016-02-26 15:23:00 |
| R61.htm | 12165 | 2016-02-26 15:23:00 |
| R62.htm | 18310 | 2016-02-26 15:23:00 |
| R63.htm | 44613 | 2016-02-26 15:23:00 |
| R64.htm | 70890 | 2016-02-26 15:23:00 |
| R65.htm | 52566 | 2016-02-26 15:23:00 |
| R66.htm | 81640 | 2016-02-26 15:23:00 |
| R67.htm | 11728 | 2016-02-26 15:23:00 |
| R68.htm | 41139 | 2016-02-26 15:23:00 |
| R69.htm | 37138 | 2016-02-26 15:23:00 |
| R7.htm | 102919 | 2016-02-26 15:23:00 |
| R70.htm | 47248 | 2016-02-26 15:23:00 |
| R71.htm | 26612 | 2016-02-26 15:23:00 |
| R72.htm | 13062 | 2016-02-26 15:23:00 |
| R73.htm | 16315 | 2016-02-26 15:23:00 |
| R74.htm | 105717 | 2016-02-26 15:23:00 |
| R75.htm | 28992 | 2016-02-26 15:23:00 |
| R76.htm | 11540 | 2016-02-26 15:23:00 |
| R77.htm | 37955 | 2016-02-26 15:23:00 |
| R78.htm | 22404 | 2016-02-26 15:23:00 |
| R79.htm | 278500 | 2016-02-26 15:23:00 |
| R8.htm | 8964 | 2016-02-26 15:23:00 |
| R80.htm | 24642 | 2016-02-26 15:23:00 |
| R81.htm | 34371 | 2016-02-26 15:23:00 |
| R82.htm | 44239 | 2016-02-26 15:23:00 |
| R83.htm | 26484 | 2016-02-26 15:23:00 |
| R84.htm | 47977 | 2016-02-26 15:23:00 |
| R85.htm | 6150 | 2016-02-26 15:23:00 |
| R86.htm | 177176 | 2016-02-26 15:23:00 |
| R87.htm | 57480 | 2016-02-26 15:23:00 |
| R88.htm | 21317 | 2016-02-26 15:23:00 |
| R89.htm | 12037 | 2016-02-26 15:23:00 |
| R9.htm | 48257 | 2016-02-26 15:23:00 |
| R90.htm | 23934 | 2016-02-26 15:23:00 |
| R91.htm | 73013 | 2016-02-26 15:23:00 |
| R92.htm | 17524 | 2016-02-26 15:23:00 |
| R93.htm | 25856 | 2016-02-26 15:23:00 |
| R94.htm | 12735 | 2016-02-26 15:23:00 |
| R95.htm | 13550 | 2016-02-26 15:23:00 |
| R96.htm | 28059 | 2016-02-26 15:23:00 |
| R97.htm | 12638 | 2016-02-26 15:23:00 |
| R98.htm | 65945 | 2016-02-26 15:23:00 |
| R99.htm | 32848 | 2016-02-26 15:23:00 |
| report.css | 2768 | 2016-02-26 15:23:00 |
| Show.js | 1411 | 2016-02-26 15:23:00 |