Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001042046-21-000016-index-headers.html | 2021-05-07 13:19:21 | |
| 0001042046-21-000016-index.html | 2021-05-07 13:19:21 | |
| 0001042046-21-000016.txt | 2021-05-07 13:19:21 | |
 0001042046-21-000016-xbrl.zip | 576657 | 2021-05-07 13:19:21 |
| afg-20210331.htm | 4265847 | 2021-05-07 13:19:21 |
| afg-20210331.xsd | 93607 | 2021-05-07 13:19:21 |
| afg-20210331_cal.xml | 166481 | 2021-05-07 13:19:21 |
| afg-20210331_def.xml | 668246 | 2021-05-07 13:19:21 |
 afg-20210331_g1.jpg | 40788 | 2021-05-07 13:19:21 |
| afg-20210331_htm.xml | 4397803 | 2021-05-07 13:19:21 |
| afg-20210331_lab.xml | 1087445 | 2021-05-07 13:19:21 |
| afg-20210331_pre.xml | 825568 | 2021-05-07 13:19:21 |
| afg-2021331xex31a.htm | 10852 | 2021-05-07 13:19:21 |
| afg-2021331xex31b.htm | 10861 | 2021-05-07 13:19:21 |
| afg-2021331xex31c.htm | 10842 | 2021-05-07 13:19:21 |
| afg-2021331xex32.htm | 10515 | 2021-05-07 13:19:21 |
| FilingSummary.xml | 48585 | 2021-05-07 13:19:21 |
| Financial_Report.xlsx | 151765 | 2021-05-07 13:19:21 |
| MetaLinks.json | 1027319 | 2021-05-07 13:19:21 |
| R1.htm | 66625 | 2021-05-07 13:19:21 |
| R10.htm | 55123 | 2021-05-07 13:19:21 |
| R11.htm | 13796 | 2021-05-07 13:19:21 |
| R12.htm | 54667 | 2021-05-07 13:19:21 |
| R13.htm | 395571 | 2021-05-07 13:19:21 |
| R14.htm | 370319 | 2021-05-07 13:19:21 |
| R15.htm | 50398 | 2021-05-07 13:19:21 |
| R16.htm | 25534 | 2021-05-07 13:19:21 |
| R17.htm | 5174 | 2021-05-07 13:19:21 |
| R18.htm | 44029 | 2021-05-07 13:19:21 |
| R19.htm | 83660 | 2021-05-07 13:19:21 |
| R2.htm | 104609 | 2021-05-07 13:19:21 |
| R20.htm | 40234 | 2021-05-07 13:19:21 |
| R21.htm | 5752 | 2021-05-07 13:19:21 |
| R22.htm | 40663 | 2021-05-07 13:19:21 |
| R23.htm | 125970 | 2021-05-07 13:19:21 |
| R24.htm | 56516 | 2021-05-07 13:19:21 |
| R25.htm | 65706 | 2021-05-07 13:19:21 |
| R26.htm | 49437 | 2021-05-07 13:19:21 |
| R27.htm | 523043 | 2021-05-07 13:19:21 |
| R28.htm | 381371 | 2021-05-07 13:19:21 |
| R29.htm | 46610 | 2021-05-07 13:19:21 |
| R3.htm | 13814 | 2021-05-07 13:19:21 |
| R30.htm | 25014 | 2021-05-07 13:19:21 |
| R31.htm | 46030 | 2021-05-07 13:19:21 |
| R32.htm | 81317 | 2021-05-07 13:19:21 |
| R33.htm | 37679 | 2021-05-07 13:19:21 |
| R34.htm | 40002 | 2021-05-07 13:19:21 |
| R35.htm | 32619 | 2021-05-07 13:19:21 |
| R36.htm | 15721 | 2021-05-07 13:19:21 |
| R37.htm | 67054 | 2021-05-07 13:19:21 |
| R38.htm | 36802 | 2021-05-07 13:19:21 |
| R39.htm | 11521 | 2021-05-07 13:19:21 |
| R4.htm | 108346 | 2021-05-07 13:19:21 |
| R40.htm | 6606 | 2021-05-07 13:19:21 |
| R41.htm | 26807 | 2021-05-07 13:19:21 |
| R42.htm | 25667 | 2021-05-07 13:19:21 |
| R43.htm | 33860 | 2021-05-07 13:19:21 |
| R44.htm | 27475 | 2021-05-07 13:19:21 |
| R45.htm | 37247 | 2021-05-07 13:19:21 |
| R46.htm | 184097 | 2021-05-07 13:19:21 |
| R47.htm | 20152 | 2021-05-07 13:19:21 |
| R48.htm | 75092 | 2021-05-07 13:19:21 |
| R49.htm | 25121 | 2021-05-07 13:19:21 |
| R5.htm | 40638 | 2021-05-07 13:19:21 |
| R50.htm | 61372 | 2021-05-07 13:19:21 |
| R51.htm | 46603 | 2021-05-07 13:19:21 |
| R52.htm | 126344 | 2021-05-07 13:19:21 |
| R53.htm | 15882 | 2021-05-07 13:19:21 |
| R54.htm | 17189 | 2021-05-07 13:19:21 |
| R55.htm | 52932 | 2021-05-07 13:19:21 |
| R56.htm | 28031 | 2021-05-07 13:19:21 |
| R57.htm | 59476 | 2021-05-07 13:19:21 |
| R58.htm | 30281 | 2021-05-07 13:19:21 |
| R59.htm | 21823 | 2021-05-07 13:19:21 |
| R6.htm | 117877 | 2021-05-07 13:19:21 |
| R60.htm | 29404 | 2021-05-07 13:19:21 |
| R61.htm | 17663 | 2021-05-07 13:19:21 |
| R62.htm | 7163 | 2021-05-07 13:19:21 |
| R63.htm | 21777 | 2021-05-07 13:19:21 |
| R64.htm | 26378 | 2021-05-07 13:19:21 |
| R65.htm | 20365 | 2021-05-07 13:19:21 |
| R66.htm | 40715 | 2021-05-07 13:19:21 |
| R67.htm | 23198 | 2021-05-07 13:19:21 |
| R68.htm | 18468 | 2021-05-07 13:19:21 |
| R69.htm | 37112 | 2021-05-07 13:19:21 |
| R7.htm | 4503 | 2021-05-07 13:19:21 |
| R70.htm | 46066 | 2021-05-07 13:19:21 |
| R71.htm | 10070 | 2021-05-07 13:19:21 |
| R72.htm | 11276 | 2021-05-07 13:19:21 |
| R73.htm | 83839 | 2021-05-07 13:19:21 |
| R74.htm | 8918 | 2021-05-07 13:19:21 |
| R75.htm | 51620 | 2021-05-07 13:19:21 |
| R76.htm | 31086 | 2021-05-07 13:19:21 |
| R77.htm | 10297 | 2021-05-07 13:19:21 |
| R78.htm | 11425 | 2021-05-07 13:19:21 |
| R8.htm | 109513 | 2021-05-07 13:19:21 |
| R9.htm | 51146 | 2021-05-07 13:19:21 |
| report.css | 2767 | 2021-05-07 13:19:21 |
| Show.js | 1085 | 2021-05-07 13:19:21 |