Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000712537-20-000030-index-headers.html | 2020-11-06 17:20:22 | |
| 0000712537-20-000030-index.html | 2020-11-06 17:20:22 | |
| 0000712537-20-000030.txt | 2020-11-06 17:20:22 | |
 0000712537-20-000030-xbrl.zip | 571532 | 2020-11-06 17:20:22 |
| fcf-20200930.htm | 5163386 | 2020-11-06 17:20:22 |
| fcf-20200930.xsd | 82505 | 2020-11-06 17:20:22 |
| fcf-20200930_cal.xml | 147200 | 2020-11-06 17:20:22 |
| fcf-20200930_def.xml | 631692 | 2020-11-06 17:20:22 |
| fcf-20200930_htm.xml | 4578465 | 2020-11-06 17:20:22 |
| fcf-20200930_lab.xml | 931613 | 2020-11-06 17:20:22 |
| fcf-20200930_pre.xml | 760015 | 2020-11-06 17:20:22 |
| fcf-ex31120200930x10q.htm | 10365 | 2020-11-06 17:20:22 |
| fcf-ex31220200930x10q.htm | 10710 | 2020-11-06 17:20:22 |
| fcf-ex32120200930x10q.htm | 4304 | 2020-11-06 17:20:22 |
| fcf-ex32220200930x10q.htm | 4344 | 2020-11-06 17:20:22 |
| FilingSummary.xml | 50821 | 2020-11-06 17:20:22 |
| Financial_Report.xlsx | 139954 | 2020-11-06 17:20:22 |
| MetaLinks.json | 931784 | 2020-11-06 17:20:22 |
| R1.htm | 47536 | 2020-11-06 17:20:22 |
| R10.htm | 99569 | 2020-11-06 17:20:22 |
| R11.htm | 7257 | 2020-11-06 17:20:22 |
| R12.htm | 247023 | 2020-11-06 17:20:22 |
| R13.htm | 19752 | 2020-11-06 17:20:22 |
| R14.htm | 19211 | 2020-11-06 17:20:22 |
| R15.htm | 101111 | 2020-11-06 17:20:22 |
| R16.htm | 50966 | 2020-11-06 17:20:22 |
| R17.htm | 30461 | 2020-11-06 17:20:22 |
| R18.htm | 24315 | 2020-11-06 17:20:22 |
| R19.htm | 21060 | 2020-11-06 17:20:22 |
| R2.htm | 7512 | 2020-11-06 17:20:22 |
| R20.htm | 42324 | 2020-11-06 17:20:22 |
| R21.htm | 16226 | 2020-11-06 17:20:22 |
| R22.htm | 179247 | 2020-11-06 17:20:22 |
| R23.htm | 317672 | 2020-11-06 17:20:22 |
| R24.htm | 6599 | 2020-11-06 17:20:22 |
| R25.htm | 24172 | 2020-11-06 17:20:22 |
| R26.htm | 18192 | 2020-11-06 17:20:22 |
| R27.htm | 44187 | 2020-11-06 17:20:22 |
| R28.htm | 11766 | 2020-11-06 17:20:22 |
| R29.htm | 73770 | 2020-11-06 17:20:22 |
| R3.htm | 4528 | 2020-11-06 17:20:22 |
| R30.htm | 58828 | 2020-11-06 17:20:22 |
| R31.htm | 686487 | 2020-11-06 17:20:22 |
| R32.htm | 12437 | 2020-11-06 17:20:22 |
| R33.htm | 19674 | 2020-11-06 17:20:22 |
| R34.htm | 304622 | 2020-11-06 17:20:22 |
| R35.htm | 47336 | 2020-11-06 17:20:22 |
| R36.htm | 20318 | 2020-11-06 17:20:22 |
| R37.htm | 29039 | 2020-11-06 17:20:22 |
| R38.htm | 32574 | 2020-11-06 17:20:22 |
| R39.htm | 20723 | 2020-11-06 17:20:22 |
| R4.htm | 98293 | 2020-11-06 17:20:22 |
| R40.htm | 33445 | 2020-11-06 17:20:22 |
| R41.htm | 18084 | 2020-11-06 17:20:22 |
| R42.htm | 12234 | 2020-11-06 17:20:22 |
| R43.htm | 18143 | 2020-11-06 17:20:22 |
| R44.htm | 74703 | 2020-11-06 17:20:22 |
| R45.htm | 58512 | 2020-11-06 17:20:22 |
| R46.htm | 21389 | 2020-11-06 17:20:22 |
| R47.htm | 19747 | 2020-11-06 17:20:22 |
| R48.htm | 18082 | 2020-11-06 17:20:22 |
| R49.htm | 49000 | 2020-11-06 17:20:22 |
| R5.htm | 20428 | 2020-11-06 17:20:22 |
| R50.htm | 32164 | 2020-11-06 17:20:22 |
| R51.htm | 28658 | 2020-11-06 17:20:22 |
| R52.htm | 27404 | 2020-11-06 17:20:22 |
| R53.htm | 34417 | 2020-11-06 17:20:22 |
| R54.htm | 55948 | 2020-11-06 17:20:22 |
| R55.htm | 99067 | 2020-11-06 17:20:22 |
| R56.htm | 116567 | 2020-11-06 17:20:22 |
| R57.htm | 135294 | 2020-11-06 17:20:22 |
| R58.htm | 15507 | 2020-11-06 17:20:22 |
| R59.htm | 51299 | 2020-11-06 17:20:22 |
| R6.htm | 140020 | 2020-11-06 17:20:22 |
| R60.htm | 16555 | 2020-11-06 17:20:22 |
| R61.htm | 115101 | 2020-11-06 17:20:22 |
| R62.htm | 16153 | 2020-11-06 17:20:22 |
| R63.htm | 24023 | 2020-11-06 17:20:22 |
| R64.htm | 23226 | 2020-11-06 17:20:22 |
| R65.htm | 31022 | 2020-11-06 17:20:22 |
| R66.htm | 37717 | 2020-11-06 17:20:22 |
| R67.htm | 80539 | 2020-11-06 17:20:22 |
| R68.htm | 40004 | 2020-11-06 17:20:22 |
| R69.htm | 22152 | 2020-11-06 17:20:22 |
| R7.htm | 35920 | 2020-11-06 17:20:22 |
| R70.htm | 8182 | 2020-11-06 17:20:22 |
| R71.htm | 67974 | 2020-11-06 17:20:22 |
| R72.htm | 51730 | 2020-11-06 17:20:22 |
| R73.htm | 28201 | 2020-11-06 17:20:22 |
| R74.htm | 26229 | 2020-11-06 17:20:22 |
| R75.htm | 8213 | 2020-11-06 17:20:22 |
| R76.htm | 13834 | 2020-11-06 17:20:22 |
| R77.htm | 13344 | 2020-11-06 17:20:22 |
| R78.htm | 6397 | 2020-11-06 17:20:22 |
| R8.htm | 78850 | 2020-11-06 17:20:22 |
| R9.htm | 4853 | 2020-11-06 17:20:22 |
| report.css | 2767 | 2020-11-06 17:20:22 |
| Show.js | 1085 | 2020-11-06 17:20:22 |