Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001282977-20-000006-index-headers.html | 2020-02-28 18:46:19 | |
| 0001282977-20-000006-index.html | 2020-02-28 18:46:19 | |
| 0001282977-20-000006.txt | 2020-02-28 18:46:19 | |
 0001282977-20-000006-xbrl.zip | 463412 | 2020-02-28 18:46:19 |
| ex311-ghlx12312019.htm | 12327 | 2020-02-28 18:46:19 |
| ex312-ghlx12312019.htm | 12586 | 2020-02-28 18:46:19 |
| ex321-ghlx12312019.htm | 6386 | 2020-02-28 18:46:19 |
| ex322-ghlx12312019.htm | 6652 | 2020-02-28 18:46:19 |
| ex42-descriptionofgree.htm | 15495 | 2020-02-28 18:46:19 |
| exhibit211-ghl12312019.htm | 20027 | 2020-02-28 18:46:19 |
| exhibit231-ghl12312019.htm | 3380 | 2020-02-28 18:46:19 |
| FilingSummary.xml | 44404 | 2020-02-28 18:46:19 |
| Financial_Report.xlsx | 94961 | 2020-02-28 18:46:19 |
| ghl-20191231.htm | 2200982 | 2020-02-28 18:46:19 |
| ghl-20191231.xsd | 53887 | 2020-02-28 18:46:19 |
| ghl-20191231_cal.xml | 107514 | 2020-02-28 18:46:19 |
| ghl-20191231_def.xml | 272385 | 2020-02-28 18:46:19 |
 ghl-20191231_g1.jpg | 133321 | 2020-02-28 18:46:19 |
| ghl-20191231_htm.xml | 1787599 | 2020-02-28 18:46:19 |
| ghl-20191231_lab.xml | 720345 | 2020-02-28 18:46:19 |
| ghl-20191231_pre.xml | 474318 | 2020-02-28 18:46:19 |
| MetaLinks.json | 681397 | 2020-02-28 18:46:19 |
| R1.htm | 60972 | 2020-02-28 18:46:19 |
| R10.htm | 44550 | 2020-02-28 18:46:19 |
| R11.htm | 17815 | 2020-02-28 18:46:19 |
| R12.htm | 19364 | 2020-02-28 18:46:19 |
| R13.htm | 14158 | 2020-02-28 18:46:19 |
| R14.htm | 15412 | 2020-02-28 18:46:19 |
| R15.htm | 123981 | 2020-02-28 18:46:19 |
| R16.htm | 5506 | 2020-02-28 18:46:19 |
| R17.htm | 29392 | 2020-02-28 18:46:19 |
| R18.htm | 11002 | 2020-02-28 18:46:19 |
| R19.htm | 32383 | 2020-02-28 18:46:19 |
| R2.htm | 65987 | 2020-02-28 18:46:19 |
| R20.htm | 4785 | 2020-02-28 18:46:19 |
| R21.htm | 36663 | 2020-02-28 18:46:19 |
| R22.htm | 6189 | 2020-02-28 18:46:19 |
| R23.htm | 101505 | 2020-02-28 18:46:19 |
| R24.htm | 30620 | 2020-02-28 18:46:19 |
| R25.htm | 9208 | 2020-02-28 18:46:19 |
| R26.htm | 50992 | 2020-02-28 18:46:19 |
| R27.htm | 5508 | 2020-02-28 18:46:19 |
| R28.htm | 83283 | 2020-02-28 18:46:19 |
| R29.htm | 79071 | 2020-02-28 18:46:19 |
| R3.htm | 26717 | 2020-02-28 18:46:19 |
| R30.htm | 15229 | 2020-02-28 18:46:19 |
| R31.htm | 19331 | 2020-02-28 18:46:19 |
| R32.htm | 13990 | 2020-02-28 18:46:19 |
| R33.htm | 15255 | 2020-02-28 18:46:19 |
| R34.htm | 123009 | 2020-02-28 18:46:19 |
| R35.htm | 21278 | 2020-02-28 18:46:19 |
| R36.htm | 30977 | 2020-02-28 18:46:19 |
| R37.htm | 30034 | 2020-02-28 18:46:19 |
| R38.htm | 95293 | 2020-02-28 18:46:19 |
| R39.htm | 33124 | 2020-02-28 18:46:19 |
| R4.htm | 54326 | 2020-02-28 18:46:19 |
| R40.htm | 46837 | 2020-02-28 18:46:19 |
| R41.htm | 83069 | 2020-02-28 18:46:19 |
| R42.htm | 4125 | 2020-02-28 18:46:19 |
| R43.htm | 71201 | 2020-02-28 18:46:19 |
| R44.htm | 17032 | 2020-02-28 18:46:19 |
| R45.htm | 8928 | 2020-02-28 18:46:19 |
| R46.htm | 16899 | 2020-02-28 18:46:19 |
| R47.htm | 7321 | 2020-02-28 18:46:19 |
| R48.htm | 5526 | 2020-02-28 18:46:19 |
| R49.htm | 10933 | 2020-02-28 18:46:19 |
| R5.htm | 11731 | 2020-02-28 18:46:19 |
| R50.htm | 24998 | 2020-02-28 18:46:19 |
| R51.htm | 26336 | 2020-02-28 18:46:19 |
| R52.htm | 25058 | 2020-02-28 18:46:19 |
| R53.htm | 13192 | 2020-02-28 18:46:19 |
| R54.htm | 109909 | 2020-02-28 18:46:19 |
| R55.htm | 16645 | 2020-02-28 18:46:19 |
| R56.htm | 64186 | 2020-02-28 18:46:19 |
| R57.htm | 27467 | 2020-02-28 18:46:19 |
| R58.htm | 9678 | 2020-02-28 18:46:19 |
| R59.htm | 7909 | 2020-02-28 18:46:19 |
| R6.htm | 60624 | 2020-02-28 18:46:19 |
| R60.htm | 36579 | 2020-02-28 18:46:19 |
| R61.htm | 25021 | 2020-02-28 18:46:19 |
| R62.htm | 11213 | 2020-02-28 18:46:19 |
| R63.htm | 31700 | 2020-02-28 18:46:19 |
| R64.htm | 21341 | 2020-02-28 18:46:19 |
| R65.htm | 32954 | 2020-02-28 18:46:19 |
| R66.htm | 24280 | 2020-02-28 18:46:19 |
| R67.htm | 13832 | 2020-02-28 18:46:19 |
| R68.htm | 23672 | 2020-02-28 18:46:19 |
| R69.htm | 6886 | 2020-02-28 18:46:19 |
| R7.htm | 8143 | 2020-02-28 18:46:19 |
| R70.htm | 19352 | 2020-02-28 18:46:19 |
| R71.htm | 13407 | 2020-02-28 18:46:19 |
| R72.htm | 22589 | 2020-02-28 18:46:19 |
| R73.htm | 25563 | 2020-02-28 18:46:19 |
| R74.htm | 11117 | 2020-02-28 18:46:19 |
| R75.htm | 35391 | 2020-02-28 18:46:19 |
| R8.htm | 91432 | 2020-02-28 18:46:19 |
| R9.htm | 7738 | 2020-02-28 18:46:19 |
| report.css | 2767 | 2020-02-28 18:46:19 |
| Show.js | 1085 | 2020-02-28 18:46:19 |