Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000101199-18-000040-index-headers.html | 2018-02-28 12:05:26 | |
| 0000101199-18-000040-index.html | 2018-02-28 12:05:26 | |
| 0000101199-18-000040.txt | 2018-02-28 12:05:26 | |
 0000101199-18-000040-xbrl.zip | 746831 | 2018-02-28 12:05:26 |
| exhibit12123117.htm | 30419 | 2018-02-28 12:05:26 |
| exhibit21123117.htm | 18777 | 2018-02-28 12:05:26 |
| exhibit231123117.htm | 11683 | 2018-02-28 12:05:26 |
| exhibit232123117.htm | 13288 | 2018-02-28 12:05:26 |
| exhibit233123117.htm | 12585 | 2018-02-28 12:05:26 |
| exhibit311123117.htm | 13930 | 2018-02-28 12:05:26 |
| exhibit312123117.htm | 14008 | 2018-02-28 12:05:26 |
| exhibit321123117.htm | 8636 | 2018-02-28 12:05:26 |
| exhibit322123117.htm | 8562 | 2018-02-28 12:05:26 |
| FilingSummary.xml | 70516 | 2018-02-28 12:05:26 |
| Financial_Report.xlsx | 231038 | 2018-02-28 12:05:26 |
| R1.htm | 30005 | 2018-02-28 12:05:26 |
| R10.htm | 1350859 | 2018-02-28 12:05:26 |
| R100.htm | 21885 | 2018-02-28 12:05:26 |
| R101.htm | 27612 | 2018-02-28 12:05:26 |
| R102.htm | 11581 | 2018-02-28 12:05:26 |
| R103.htm | 13346 | 2018-02-28 12:05:26 |
| R104.htm | 23165 | 2018-02-28 12:05:26 |
| R105.htm | 8691 | 2018-02-28 12:05:26 |
| R106.htm | 46192 | 2018-02-28 12:05:26 |
| R107.htm | 67444 | 2018-02-28 12:05:26 |
| R108.htm | 74498 | 2018-02-28 12:05:26 |
| R109.htm | 48658 | 2018-02-28 12:05:26 |
| R11.htm | 803682 | 2018-02-28 12:05:26 |
| R110.htm | 17231 | 2018-02-28 12:05:26 |
| R111.htm | 76124 | 2018-02-28 12:05:26 |
| R112.htm | 55714 | 2018-02-28 12:05:26 |
| R113.htm | 37028 | 2018-02-28 12:05:26 |
| R114.htm | 25338 | 2018-02-28 12:05:26 |
| R115.htm | 14788 | 2018-02-28 12:05:26 |
| R116.htm | 31562 | 2018-02-28 12:05:26 |
| R12.htm | 117378 | 2018-02-28 12:05:26 |
| R13.htm | 799224 | 2018-02-28 12:05:26 |
| R14.htm | 33994 | 2018-02-28 12:05:26 |
| R15.htm | 109474 | 2018-02-28 12:05:26 |
| R16.htm | 351688 | 2018-02-28 12:05:26 |
| R17.htm | 123896 | 2018-02-28 12:05:26 |
| R18.htm | 59178 | 2018-02-28 12:05:26 |
| R19.htm | 122921 | 2018-02-28 12:05:26 |
| R2.htm | 87065 | 2018-02-28 12:05:26 |
| R20.htm | 62688 | 2018-02-28 12:05:26 |
| R21.htm | 13190 | 2018-02-28 12:05:26 |
| R22.htm | 9998 | 2018-02-28 12:05:26 |
| R23.htm | 51917 | 2018-02-28 12:05:26 |
| R24.htm | 41710 | 2018-02-28 12:05:26 |
| R25.htm | 104520 | 2018-02-28 12:05:26 |
| R26.htm | 105156 | 2018-02-28 12:05:26 |
| R27.htm | 146242 | 2018-02-28 12:05:26 |
| R28.htm | 118349 | 2018-02-28 12:05:26 |
| R29.htm | 80034 | 2018-02-28 12:05:26 |
| R3.htm | 26330 | 2018-02-28 12:05:26 |
| R30.htm | 36126 | 2018-02-28 12:05:26 |
| R31.htm | 68010 | 2018-02-28 12:05:26 |
| R32.htm | 123524 | 2018-02-28 12:05:26 |
| R33.htm | 75852 | 2018-02-28 12:05:26 |
| R34.htm | 1356700 | 2018-02-28 12:05:26 |
| R35.htm | 786506 | 2018-02-28 12:05:26 |
| R36.htm | 108619 | 2018-02-28 12:05:26 |
| R37.htm | 792728 | 2018-02-28 12:05:26 |
| R38.htm | 24245 | 2018-02-28 12:05:26 |
| R39.htm | 106508 | 2018-02-28 12:05:26 |
| R4.htm | 88712 | 2018-02-28 12:05:26 |
| R40.htm | 343090 | 2018-02-28 12:05:26 |
| R41.htm | 122597 | 2018-02-28 12:05:26 |
| R42.htm | 50139 | 2018-02-28 12:05:26 |
| R43.htm | 122804 | 2018-02-28 12:05:26 |
| R44.htm | 61348 | 2018-02-28 12:05:26 |
| R45.htm | 11327 | 2018-02-28 12:05:26 |
| R46.htm | 52352 | 2018-02-28 12:05:26 |
| R47.htm | 41270 | 2018-02-28 12:05:26 |
| R48.htm | 105084 | 2018-02-28 12:05:26 |
| R49.htm | 76148 | 2018-02-28 12:05:26 |
| R5.htm | 10238 | 2018-02-28 12:05:26 |
| R50.htm | 28663 | 2018-02-28 12:05:26 |
| R51.htm | 15990 | 2018-02-28 12:05:26 |
| R52.htm | 14467 | 2018-02-28 12:05:26 |
| R53.htm | 139610 | 2018-02-28 12:05:26 |
| R54.htm | 167172 | 2018-02-28 12:05:26 |
| R55.htm | 41668 | 2018-02-28 12:05:26 |
| R56.htm | 15838 | 2018-02-28 12:05:26 |
| R57.htm | 32019 | 2018-02-28 12:05:26 |
| R58.htm | 16541 | 2018-02-28 12:05:26 |
| R59.htm | 215906 | 2018-02-28 12:05:26 |
| R6.htm | 50119 | 2018-02-28 12:05:26 |
| R60.htm | 7992 | 2018-02-28 12:05:26 |
| R61.htm | 47983 | 2018-02-28 12:05:26 |
| R62.htm | 343500 | 2018-02-28 12:05:26 |
| R63.htm | 33246 | 2018-02-28 12:05:26 |
| R64.htm | 39802 | 2018-02-28 12:05:26 |
| R65.htm | 17187 | 2018-02-28 12:05:26 |
| R66.htm | 27876 | 2018-02-28 12:05:26 |
| R67.htm | 12768 | 2018-02-28 12:05:26 |
| R68.htm | 28692 | 2018-02-28 12:05:26 |
| R69.htm | 259096 | 2018-02-28 12:05:26 |
| R7.htm | 10980 | 2018-02-28 12:05:26 |
| R70.htm | 160128 | 2018-02-28 12:05:26 |
| R71.htm | 40324 | 2018-02-28 12:05:26 |
| R72.htm | 43069 | 2018-02-28 12:05:26 |
| R73.htm | 11740 | 2018-02-28 12:05:26 |
| R74.htm | 26766 | 2018-02-28 12:05:26 |
| R75.htm | 18316 | 2018-02-28 12:05:26 |
| R76.htm | 12799 | 2018-02-28 12:05:26 |
| R77.htm | 26576 | 2018-02-28 12:05:26 |
| R78.htm | 63812 | 2018-02-28 12:05:26 |
| R79.htm | 18653 | 2018-02-28 12:05:26 |
| R8.htm | 119517 | 2018-02-28 12:05:26 |
| R80.htm | 51773 | 2018-02-28 12:05:26 |
| R81.htm | 64880 | 2018-02-28 12:05:26 |
| R82.htm | 15529 | 2018-02-28 12:05:26 |
| R83.htm | 41642 | 2018-02-28 12:05:26 |
| R84.htm | 41545 | 2018-02-28 12:05:26 |
| R85.htm | 17000 | 2018-02-28 12:05:26 |
| R86.htm | 20772 | 2018-02-28 12:05:26 |
| R87.htm | 19283 | 2018-02-28 12:05:26 |
| R88.htm | 6601 | 2018-02-28 12:05:26 |
| R89.htm | 46069 | 2018-02-28 12:05:26 |
| R9.htm | 128601 | 2018-02-28 12:05:26 |
| R90.htm | 15926 | 2018-02-28 12:05:26 |
| R91.htm | 40114 | 2018-02-28 12:05:26 |
| R92.htm | 34914 | 2018-02-28 12:05:26 |
| R93.htm | 14229 | 2018-02-28 12:05:26 |
| R94.htm | 39238 | 2018-02-28 12:05:26 |
| R95.htm | 18075 | 2018-02-28 12:05:26 |
| R96.htm | 41639 | 2018-02-28 12:05:26 |
| R97.htm | 39608 | 2018-02-28 12:05:26 |
| R98.htm | 44210 | 2018-02-28 12:05:26 |
| R99.htm | 27310 | 2018-02-28 12:05:26 |
| report.css | 2768 | 2018-02-28 12:05:26 |
| Show.js | 1411 | 2018-02-28 12:05:26 |
| ufcs-20171231.xml | 13128719 | 2018-02-28 12:05:26 |
| ufcs-20171231.xsd | 112111 | 2018-02-28 12:05:26 |
| ufcs-20171231x10k.htm | 6692004 | 2018-02-28 12:05:26 |
| ufcs-20171231_cal.xml | 232852 | 2018-02-28 12:05:26 |
| ufcs-20171231_def.xml | 839254 | 2018-02-28 12:05:26 |
| ufcs-20171231_lab.xml | 1648369 | 2018-02-28 12:05:26 |
| ufcs-20171231_pre.xml | 1118441 | 2018-02-28 12:05:26 |
 ufcs_chartx29906a04.jpg | 75771 | 2018-02-28 12:05:26 |