Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001042046-21-000033-index-headers.html | 2021-08-06 12:29:01 | |
| 0001042046-21-000033-index.html | 2021-08-06 12:29:01 | |
| 0001042046-21-000033.txt | 2021-08-06 12:29:01 | |
 0001042046-21-000033-xbrl.zip | 617350 | 2021-08-06 12:29:01 |
| afg-20210630.htm | 5652647 | 2021-08-06 12:29:01 |
| afg-20210630.xsd | 86780 | 2021-08-06 12:29:01 |
| afg-20210630_cal.xml | 179996 | 2021-08-06 12:29:01 |
| afg-20210630_def.xml | 586407 | 2021-08-06 12:29:01 |
 afg-20210630_g1.jpg | 40788 | 2021-08-06 12:29:01 |
| afg-20210630_htm.xml | 5217909 | 2021-08-06 12:29:01 |
| afg-20210630_lab.xml | 1052115 | 2021-08-06 12:29:01 |
| afg-20210630_pre.xml | 767468 | 2021-08-06 12:29:01 |
| afg-2021630xex31a.htm | 10889 | 2021-08-06 12:29:01 |
| afg-2021630xex31b.htm | 10898 | 2021-08-06 12:29:01 |
| afg-2021630xex31c.htm | 10879 | 2021-08-06 12:29:01 |
| afg-2021630xex32.htm | 10531 | 2021-08-06 12:29:01 |
| FilingSummary.xml | 46179 | 2021-08-06 12:29:01 |
| Financial_Report.xlsx | 143333 | 2021-08-06 12:29:01 |
| MetaLinks.json | 1031643 | 2021-08-06 12:29:01 |
| R1.htm | 66587 | 2021-08-06 12:29:01 |
| R10.htm | 83284 | 2021-08-06 12:29:01 |
| R11.htm | 17092 | 2021-08-06 12:29:01 |
| R12.htm | 79598 | 2021-08-06 12:29:01 |
| R13.htm | 399330 | 2021-08-06 12:29:01 |
| R14.htm | 391566 | 2021-08-06 12:29:01 |
| R15.htm | 34958 | 2021-08-06 12:29:01 |
| R16.htm | 4947 | 2021-08-06 12:29:01 |
| R17.htm | 44038 | 2021-08-06 12:29:01 |
| R18.htm | 185492 | 2021-08-06 12:29:01 |
| R19.htm | 63264 | 2021-08-06 12:29:01 |
| R2.htm | 117959 | 2021-08-06 12:29:01 |
| R20.htm | 6056 | 2021-08-06 12:29:01 |
| R21.htm | 48445 | 2021-08-06 12:29:01 |
| R22.htm | 95352 | 2021-08-06 12:29:01 |
| R23.htm | 84329 | 2021-08-06 12:29:01 |
| R24.htm | 14820 | 2021-08-06 12:29:01 |
| R25.htm | 74378 | 2021-08-06 12:29:01 |
| R26.htm | 669599 | 2021-08-06 12:29:01 |
| R27.htm | 404549 | 2021-08-06 12:29:01 |
| R28.htm | 34479 | 2021-08-06 12:29:01 |
| R29.htm | 46592 | 2021-08-06 12:29:01 |
| R3.htm | 13819 | 2021-08-06 12:29:01 |
| R30.htm | 179481 | 2021-08-06 12:29:01 |
| R31.htm | 60396 | 2021-08-06 12:29:01 |
| R32.htm | 47955 | 2021-08-06 12:29:01 |
| R33.htm | 37422 | 2021-08-06 12:29:01 |
| R34.htm | 31585 | 2021-08-06 12:29:01 |
| R35.htm | 45485 | 2021-08-06 12:29:01 |
| R36.htm | 44959 | 2021-08-06 12:29:01 |
| R37.htm | 35432 | 2021-08-06 12:29:01 |
| R38.htm | 11476 | 2021-08-06 12:29:01 |
| R39.htm | 20969 | 2021-08-06 12:29:01 |
| R4.htm | 130993 | 2021-08-06 12:29:01 |
| R40.htm | 11722 | 2021-08-06 12:29:01 |
| R41.htm | 31899 | 2021-08-06 12:29:01 |
| R42.htm | 31738 | 2021-08-06 12:29:01 |
| R43.htm | 43082 | 2021-08-06 12:29:01 |
| R44.htm | 33136 | 2021-08-06 12:29:01 |
| R45.htm | 19107 | 2021-08-06 12:29:01 |
| R46.htm | 101712 | 2021-08-06 12:29:01 |
| R47.htm | 97659 | 2021-08-06 12:29:01 |
| R48.htm | 30242 | 2021-08-06 12:29:01 |
| R49.htm | 30030 | 2021-08-06 12:29:01 |
| R5.htm | 67385 | 2021-08-06 12:29:01 |
| R50.htm | 44185 | 2021-08-06 12:29:01 |
| R51.htm | 139337 | 2021-08-06 12:29:01 |
| R52.htm | 15907 | 2021-08-06 12:29:01 |
| R53.htm | 18588 | 2021-08-06 12:29:01 |
| R54.htm | 52949 | 2021-08-06 12:29:01 |
| R55.htm | 30444 | 2021-08-06 12:29:01 |
| R56.htm | 63038 | 2021-08-06 12:29:01 |
| R57.htm | 30341 | 2021-08-06 12:29:01 |
| R58.htm | 24886 | 2021-08-06 12:29:01 |
| R59.htm | 32374 | 2021-08-06 12:29:01 |
| R6.htm | 166547 | 2021-08-06 12:29:01 |
| R60.htm | 10167 | 2021-08-06 12:29:01 |
| R61.htm | 7712 | 2021-08-06 12:29:01 |
| R62.htm | 37872 | 2021-08-06 12:29:01 |
| R63.htm | 24815 | 2021-08-06 12:29:01 |
| R64.htm | 15482 | 2021-08-06 12:29:01 |
| R65.htm | 38787 | 2021-08-06 12:29:01 |
| R66.htm | 47518 | 2021-08-06 12:29:01 |
| R67.htm | 10378 | 2021-08-06 12:29:01 |
| R68.htm | 11929 | 2021-08-06 12:29:01 |
| R69.htm | 157305 | 2021-08-06 12:29:01 |
| R7.htm | 4820 | 2021-08-06 12:29:01 |
| R70.htm | 9802 | 2021-08-06 12:29:01 |
| R71.htm | 58567 | 2021-08-06 12:29:01 |
| R72.htm | 31106 | 2021-08-06 12:29:01 |
| R73.htm | 10910 | 2021-08-06 12:29:01 |
| R74.htm | 12042 | 2021-08-06 12:29:01 |
| R8.htm | 113073 | 2021-08-06 12:29:01 |
| R9.htm | 36969 | 2021-08-06 12:29:01 |
| report.css | 2767 | 2021-08-06 12:29:01 |
| Show.js | 1085 | 2021-08-06 12:29:01 |