Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000798941-25-000024-index-headers.html | 2025-05-09 08:49:47 | |
| 0000798941-25-000024-index.html | 2025-05-09 08:49:47 | |
| 0000798941-25-000024.txt | 2025-05-09 08:49:47 | |
 0000798941-25-000024-xbrl.zip | 571337 | 2025-05-09 08:49:47 |
| fcnca-20250331.htm | 6526294 | 2025-05-09 08:49:47 |
| fcnca-20250331.xsd | 101581 | 2025-05-09 08:49:47 |
| fcnca-20250331_cal.xml | 205409 | 2025-05-09 08:49:47 |
| fcnca-20250331_def.xml | 737007 | 2025-05-09 08:49:47 |
| fcnca-20250331_htm.xml | 7779410 | 2025-05-09 08:49:47 |
| fcnca-20250331_lab.xml | 1154580 | 2025-05-09 08:49:47 |
| fcnca-20250331_pre.xml | 976452 | 2025-05-09 08:49:47 |
| fcnca_exx311x1q2025ceocert.htm | 10179 | 2025-05-09 08:49:47 |
| fcnca_exx312x1q2025cfocert.htm | 10101 | 2025-05-09 08:49:47 |
| fcnca_exx321x1q2025ceocert.htm | 3238 | 2025-05-09 08:49:47 |
| fcnca_exx322x1q2025cfocert.htm | 3217 | 2025-05-09 08:49:47 |
| FilingSummary.xml | 66552 | 2025-05-09 08:49:47 |
| Financial_Report.xlsx | 226180 | 2025-05-09 08:49:47 |
| MetaLinks.json | 1482458 | 2025-05-09 08:49:47 |
| R1.htm | 62520 | 2025-05-09 08:49:47 |
| R10.htm | 38888 | 2025-05-09 08:49:47 |
| R100.htm | 48117 | 2025-05-09 08:49:47 |
| R101.htm | 4615 | 2025-05-09 08:49:47 |
| R102.htm | 14390 | 2025-05-09 08:49:47 |
| R103.htm | 11468 | 2025-05-09 08:49:47 |
| R104.htm | 106797 | 2025-05-09 08:49:47 |
| R105.htm | 13685 | 2025-05-09 08:49:47 |
| R106.htm | 13347 | 2025-05-09 08:49:47 |
| R11.htm | 209782 | 2025-05-09 08:49:47 |
| R12.htm | 1435465 | 2025-05-09 08:49:47 |
| R13.htm | 46104 | 2025-05-09 08:49:47 |
| R14.htm | 129200 | 2025-05-09 08:49:47 |
| R15.htm | 24745 | 2025-05-09 08:49:47 |
| R16.htm | 30425 | 2025-05-09 08:49:47 |
| R17.htm | 36518 | 2025-05-09 08:49:47 |
| R18.htm | 145928 | 2025-05-09 08:49:47 |
| R19.htm | 347996 | 2025-05-09 08:49:47 |
| R2.htm | 114580 | 2025-05-09 08:49:47 |
| R20.htm | 34626 | 2025-05-09 08:49:47 |
| R21.htm | 99885 | 2025-05-09 08:49:47 |
| R22.htm | 21810 | 2025-05-09 08:49:47 |
| R23.htm | 10367 | 2025-05-09 08:49:47 |
| R24.htm | 13304 | 2025-05-09 08:49:47 |
| R25.htm | 194483 | 2025-05-09 08:49:47 |
| R26.htm | 26844 | 2025-05-09 08:49:47 |
| R27.htm | 14477 | 2025-05-09 08:49:47 |
| R28.htm | 8465 | 2025-05-09 08:49:47 |
| R29.htm | 19126 | 2025-05-09 08:49:47 |
| R3.htm | 26669 | 2025-05-09 08:49:47 |
| R30.htm | 27530 | 2025-05-09 08:49:47 |
| R31.htm | 208002 | 2025-05-09 08:49:47 |
| R32.htm | 1433835 | 2025-05-09 08:49:47 |
| R33.htm | 45022 | 2025-05-09 08:49:47 |
| R34.htm | 65866 | 2025-05-09 08:49:47 |
| R35.htm | 25225 | 2025-05-09 08:49:47 |
| R36.htm | 31782 | 2025-05-09 08:49:47 |
| R37.htm | 28763 | 2025-05-09 08:49:47 |
| R38.htm | 241020 | 2025-05-09 08:49:47 |
| R39.htm | 363152 | 2025-05-09 08:49:47 |
| R4.htm | 146216 | 2025-05-09 08:49:47 |
| R40.htm | 29058 | 2025-05-09 08:49:47 |
| R41.htm | 98620 | 2025-05-09 08:49:47 |
| R42.htm | 21237 | 2025-05-09 08:49:47 |
| R43.htm | 11967 | 2025-05-09 08:49:47 |
| R44.htm | 173422 | 2025-05-09 08:49:47 |
| R45.htm | 13559 | 2025-05-09 08:49:47 |
| R46.htm | 69702 | 2025-05-09 08:49:47 |
| R47.htm | 56915 | 2025-05-09 08:49:47 |
| R48.htm | 72502 | 2025-05-09 08:49:47 |
| R49.htm | 64709 | 2025-05-09 08:49:47 |
| R5.htm | 28049 | 2025-05-09 08:49:47 |
| R50.htm | 69925 | 2025-05-09 08:49:47 |
| R51.htm | 9833 | 2025-05-09 08:49:47 |
| R52.htm | 13330 | 2025-05-09 08:49:47 |
| R53.htm | 39113 | 2025-05-09 08:49:47 |
| R54.htm | 42964 | 2025-05-09 08:49:47 |
| R55.htm | 32707 | 2025-05-09 08:49:47 |
| R56.htm | 12297 | 2025-05-09 08:49:47 |
| R57.htm | 185528 | 2025-05-09 08:49:47 |
| R58.htm | 407663 | 2025-05-09 08:49:47 |
| R59.htm | 78132 | 2025-05-09 08:49:47 |
| R6.htm | 48985 | 2025-05-09 08:49:47 |
| R60.htm | 131545 | 2025-05-09 08:49:47 |
| R61.htm | 57508 | 2025-05-09 08:49:47 |
| R62.htm | 94748 | 2025-05-09 08:49:47 |
| R63.htm | 37878 | 2025-05-09 08:49:47 |
| R64.htm | 21986 | 2025-05-09 08:49:47 |
| R65.htm | 7497 | 2025-05-09 08:49:47 |
| R66.htm | 14559 | 2025-05-09 08:49:47 |
| R67.htm | 35118 | 2025-05-09 08:49:47 |
| R68.htm | 13299 | 2025-05-09 08:49:47 |
| R69.htm | 11394 | 2025-05-09 08:49:47 |
| R7.htm | 8169 | 2025-05-09 08:49:47 |
| R70.htm | 17363 | 2025-05-09 08:49:47 |
| R71.htm | 10194 | 2025-05-09 08:49:47 |
| R72.htm | 10306 | 2025-05-09 08:49:47 |
| R73.htm | 12867 | 2025-05-09 08:49:47 |
| R74.htm | 25319 | 2025-05-09 08:49:47 |
| R75.htm | 37576 | 2025-05-09 08:49:47 |
| R76.htm | 14633 | 2025-05-09 08:49:47 |
| R77.htm | 20128 | 2025-05-09 08:49:47 |
| R78.htm | 21892 | 2025-05-09 08:49:47 |
| R79.htm | 40612 | 2025-05-09 08:49:47 |
| R8.htm | 125972 | 2025-05-09 08:49:47 |
| R80.htm | 78648 | 2025-05-09 08:49:47 |
| R81.htm | 45686 | 2025-05-09 08:49:47 |
| R82.htm | 16067 | 2025-05-09 08:49:47 |
| R83.htm | 16952 | 2025-05-09 08:49:47 |
| R84.htm | 11218 | 2025-05-09 08:49:47 |
| R85.htm | 13174 | 2025-05-09 08:49:47 |
| R86.htm | 12083 | 2025-05-09 08:49:47 |
| R87.htm | 123489 | 2025-05-09 08:49:47 |
| R88.htm | 39046 | 2025-05-09 08:49:47 |
| R89.htm | 39584 | 2025-05-09 08:49:47 |
| R9.htm | 13865 | 2025-05-09 08:49:47 |
| R90.htm | 9984 | 2025-05-09 08:49:47 |
| R91.htm | 19908 | 2025-05-09 08:49:47 |
| R92.htm | 33985 | 2025-05-09 08:49:47 |
| R93.htm | 117982 | 2025-05-09 08:49:47 |
| R94.htm | 13781 | 2025-05-09 08:49:47 |
| R95.htm | 14863 | 2025-05-09 08:49:47 |
| R96.htm | 38868 | 2025-05-09 08:49:47 |
| R97.htm | 23379 | 2025-05-09 08:49:47 |
| R98.htm | 33781 | 2025-05-09 08:49:47 |
| R99.htm | 34053 | 2025-05-09 08:49:47 |
| report.css | 2768 | 2025-05-09 08:49:47 |
| Show.js | 1086 | 2025-05-09 08:49:47 |