Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001490906-23-000019-index-headers.html | 2023-08-09 11:02:31 | |
| 0001490906-23-000019-index.html | 2023-08-09 11:02:31 | |
| 0001490906-23-000019.txt | 2023-08-09 11:02:31 | |
 0001490906-23-000019-xbrl.zip | 295620 | 2023-08-09 11:02:31 |
| cffn-063023xex311.htm | 10322 | 2023-08-09 11:02:31 |
| cffn-063023xex312.htm | 10162 | 2023-08-09 11:02:31 |
| cffn-063023xex32.htm | 9078 | 2023-08-09 11:02:31 |
| cffn-20230630.htm | 4109709 | 2023-08-09 11:02:31 |
| cffn-20230630.xsd | 29294 | 2023-08-09 11:02:31 |
| cffn-20230630_cal.xml | 93441 | 2023-08-09 11:02:31 |
| cffn-20230630_def.xml | 245586 | 2023-08-09 11:02:31 |
| cffn-20230630_htm.xml | 3216058 | 2023-08-09 11:02:31 |
| cffn-20230630_lab.xml | 476593 | 2023-08-09 11:02:31 |
| cffn-20230630_pre.xml | 383064 | 2023-08-09 11:02:31 |
| FilingSummary.xml | 30520 | 2023-08-09 11:02:31 |
| Financial_Report.xlsx | 98584 | 2023-08-09 11:02:31 |
| MetaLinks.json | 637341 | 2023-08-09 11:02:31 |
| R1.htm | 51682 | 2023-08-09 11:02:31 |
| R10.htm | 12365 | 2023-08-09 11:02:31 |
| R11.htm | 34482 | 2023-08-09 11:02:31 |
| R12.htm | 114817 | 2023-08-09 11:02:31 |
| R13.htm | 825063 | 2023-08-09 11:02:31 |
| R14.htm | 10739 | 2023-08-09 11:02:31 |
| R15.htm | 117761 | 2023-08-09 11:02:31 |
| R16.htm | 64294 | 2023-08-09 11:02:31 |
| R17.htm | 14911 | 2023-08-09 11:02:31 |
| R18.htm | 34079 | 2023-08-09 11:02:31 |
| R19.htm | 121927 | 2023-08-09 11:02:31 |
| R2.htm | 75952 | 2023-08-09 11:02:31 |
| R20.htm | 817729 | 2023-08-09 11:02:31 |
| R21.htm | 104301 | 2023-08-09 11:02:31 |
| R22.htm | 63761 | 2023-08-09 11:02:31 |
| R23.htm | 10771 | 2023-08-09 11:02:31 |
| R24.htm | 53554 | 2023-08-09 11:02:31 |
| R25.htm | 24421 | 2023-08-09 11:02:31 |
| R26.htm | 28029 | 2023-08-09 11:02:31 |
| R27.htm | 32406 | 2023-08-09 11:02:31 |
| R28.htm | 9892 | 2023-08-09 11:02:31 |
| R29.htm | 12916 | 2023-08-09 11:02:31 |
| R3.htm | 28779 | 2023-08-09 11:02:31 |
| R30.htm | 21749 | 2023-08-09 11:02:31 |
| R31.htm | 49623 | 2023-08-09 11:02:31 |
| R32.htm | 134683 | 2023-08-09 11:02:31 |
| R33.htm | 139025 | 2023-08-09 11:02:31 |
| R34.htm | 70208 | 2023-08-09 11:02:31 |
| R35.htm | 28179 | 2023-08-09 11:02:31 |
| R36.htm | 37600 | 2023-08-09 11:02:31 |
| R37.htm | 32724 | 2023-08-09 11:02:31 |
| R38.htm | 37674 | 2023-08-09 11:02:31 |
| R39.htm | 8030 | 2023-08-09 11:02:31 |
| R4.htm | 109410 | 2023-08-09 11:02:31 |
| R40.htm | 22719 | 2023-08-09 11:02:31 |
| R41.htm | 30965 | 2023-08-09 11:02:31 |
| R42.htm | 55481 | 2023-08-09 11:02:31 |
| R43.htm | 47338 | 2023-08-09 11:02:31 |
| R44.htm | 53729 | 2023-08-09 11:02:31 |
| R5.htm | 24525 | 2023-08-09 11:02:31 |
| R6.htm | 7920 | 2023-08-09 11:02:31 |
| R7.htm | 61467 | 2023-08-09 11:02:31 |
| R8.htm | 4967 | 2023-08-09 11:02:31 |
| R9.htm | 101215 | 2023-08-09 11:02:31 |
| report.css | 2767 | 2023-08-09 11:02:31 |
| Show.js | 1085 | 2023-08-09 11:02:31 |