Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-26-005892-index-headers.html | 2026-02-05 18:37:18 | |
| 0001628280-26-005892-index.html | 2026-02-05 18:37:18 | |
| 0001628280-26-005892.txt | 2026-02-05 18:37:18 | |
 0001628280-26-005892-xbrl.zip | 427201 | 2026-02-05 18:37:18 |
| exhibit21-mervxmastertrans.htm | 1347826 | 2026-02-05 18:37:18 |
| FilingSummary.xml | 49866 | 2026-02-05 18:37:18 |
| gff-20251231.htm | 1564533 | 2026-02-05 18:37:18 |
| gff-20251231.xsd | 70872 | 2026-02-05 18:37:18 |
| gff-20251231_cal.xml | 101871 | 2026-02-05 18:37:18 |
| gff-20251231_def.xml | 313788 | 2026-02-05 18:37:18 |
| gff-20251231_htm.xml | 1416211 | 2026-02-05 18:37:18 |
| gff-20251231_lab.xml | 811740 | 2026-02-05 18:37:18 |
| gff-20251231_pre.xml | 581077 | 2026-02-05 18:37:18 |
| gff12-31x202510q1311.htm | 12391 | 2026-02-05 18:37:18 |
| gff12-31x202510q1312.htm | 11905 | 2026-02-05 18:37:18 |
| gff12-31x202510q132.htm | 8877 | 2026-02-05 18:37:18 |
| MetaLinks.json | 1146462 | 2026-02-05 18:37:18 |
| R1.htm | 51512 | 2026-02-05 18:37:18 |
| R10.htm | 11335 | 2026-02-05 18:37:18 |
| R11.htm | 15731 | 2026-02-05 18:37:18 |
| R12.htm | 14501 | 2026-02-05 18:37:18 |
| R13.htm | 30568 | 2026-02-05 18:37:18 |
| R14.htm | 9360 | 2026-02-05 18:37:18 |
| R15.htm | 110682 | 2026-02-05 18:37:18 |
| R16.htm | 19019 | 2026-02-05 18:37:18 |
| R17.htm | 17233 | 2026-02-05 18:37:18 |
| R18.htm | 144380 | 2026-02-05 18:37:18 |
| R19.htm | 17209 | 2026-02-05 18:37:18 |
| R2.htm | 112216 | 2026-02-05 18:37:18 |
| R20.htm | 16598 | 2026-02-05 18:37:18 |
| R21.htm | 16433 | 2026-02-05 18:37:18 |
| R22.htm | 5658 | 2026-02-05 18:37:18 |
| R23.htm | 16217 | 2026-02-05 18:37:18 |
| R24.htm | 43767 | 2026-02-05 18:37:18 |
| R25.htm | 115618 | 2026-02-05 18:37:18 |
| R26.htm | 13883 | 2026-02-05 18:37:18 |
| R27.htm | 7080 | 2026-02-05 18:37:18 |
| R28.htm | 8465 | 2026-02-05 18:37:18 |
| R29.htm | 23554 | 2026-02-05 18:37:18 |
| R3.htm | 4902 | 2026-02-05 18:37:18 |
| R30.htm | 11801 | 2026-02-05 18:37:18 |
| R31.htm | 13771 | 2026-02-05 18:37:18 |
| R32.htm | 11852 | 2026-02-05 18:37:18 |
| R33.htm | 33743 | 2026-02-05 18:37:18 |
| R34.htm | 110356 | 2026-02-05 18:37:18 |
| R35.htm | 15988 | 2026-02-05 18:37:18 |
| R36.htm | 136071 | 2026-02-05 18:37:18 |
| R37.htm | 16248 | 2026-02-05 18:37:18 |
| R38.htm | 19310 | 2026-02-05 18:37:18 |
| R39.htm | 13706 | 2026-02-05 18:37:18 |
| R4.htm | 71483 | 2026-02-05 18:37:18 |
| R40.htm | 46875 | 2026-02-05 18:37:18 |
| R41.htm | 74610 | 2026-02-05 18:37:18 |
| R42.htm | 21157 | 2026-02-05 18:37:18 |
| R43.htm | 65670 | 2026-02-05 18:37:18 |
| R44.htm | 10568 | 2026-02-05 18:37:18 |
| R45.htm | 20866 | 2026-02-05 18:37:18 |
| R46.htm | 14449 | 2026-02-05 18:37:18 |
| R47.htm | 3963 | 2026-02-05 18:37:18 |
| R48.htm | 11982 | 2026-02-05 18:37:18 |
| R49.htm | 15295 | 2026-02-05 18:37:18 |
| R5.htm | 112860 | 2026-02-05 18:37:18 |
| R50.htm | 28738 | 2026-02-05 18:37:18 |
| R51.htm | 26669 | 2026-02-05 18:37:18 |
| R52.htm | 33322 | 2026-02-05 18:37:18 |
| R53.htm | 44417 | 2026-02-05 18:37:18 |
| R54.htm | 41253 | 2026-02-05 18:37:18 |
| R55.htm | 170339 | 2026-02-05 18:37:18 |
| R56.htm | 124092 | 2026-02-05 18:37:18 |
| R57.htm | 21072 | 2026-02-05 18:37:18 |
| R58.htm | 12614 | 2026-02-05 18:37:18 |
| R59.htm | 13238 | 2026-02-05 18:37:18 |
| R6.htm | 91559 | 2026-02-05 18:37:18 |
| R60.htm | 52996 | 2026-02-05 18:37:18 |
| R61.htm | 21085 | 2026-02-05 18:37:18 |
| R62.htm | 31576 | 2026-02-05 18:37:18 |
| R63.htm | 29978 | 2026-02-05 18:37:18 |
| R64.htm | 33343 | 2026-02-05 18:37:18 |
| R65.htm | 16167 | 2026-02-05 18:37:18 |
| R66.htm | 22706 | 2026-02-05 18:37:18 |
| R67.htm | 12525 | 2026-02-05 18:37:18 |
| R68.htm | 26547 | 2026-02-05 18:37:18 |
| R69.htm | 17083 | 2026-02-05 18:37:18 |
| R7.htm | 15528 | 2026-02-05 18:37:18 |
| R70.htm | 18437 | 2026-02-05 18:37:18 |
| R71.htm | 10636 | 2026-02-05 18:37:18 |
| R72.htm | 27698 | 2026-02-05 18:37:18 |
| R73.htm | 21843 | 2026-02-05 18:37:18 |
| R74.htm | 37379 | 2026-02-05 18:37:18 |
| R75.htm | 10916 | 2026-02-05 18:37:18 |
| R76.htm | 16451 | 2026-02-05 18:37:18 |
| R77.htm | 31044 | 2026-02-05 18:37:18 |
| R78.htm | 55821 | 2026-02-05 18:37:18 |
| R79.htm | 13005 | 2026-02-05 18:37:18 |
| R8.htm | 18418 | 2026-02-05 18:37:18 |
| R80.htm | 11131 | 2026-02-05 18:37:18 |
| R81.htm | 15799 | 2026-02-05 18:37:18 |
| R9.htm | 9331 | 2026-02-05 18:37:18 |
| report.css | 2767 | 2026-02-05 18:37:18 |
| Show.js | 1085 | 2026-02-05 18:37:18 |