Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000034903-20-000008-index-headers.html | 2020-02-10 16:16:11 | |
| 0000034903-20-000008-index.html | 2020-02-10 16:16:11 | |
| 0000034903-20-000008.txt | 2020-02-10 16:16:11 | |
 0000034903-20-000008-xbrl.zip | 601203 | 2020-02-10 16:16:11 |
 chart-410667d85c0552d9968.jpg | 72457 | 2020-02-10 16:16:11 |
| FilingSummary.xml | 53613 | 2020-02-10 16:16:11 |
| Financial_Report.xlsx | 137899 | 2020-02-10 16:16:11 |
| frt-1231201910k.htm | 4897620 | 2020-02-10 16:16:11 |
| frt-1231201910k_htm.xml | 3733782 | 2020-02-10 16:16:11 |
| frt-12312019xex211.htm | 102255 | 2020-02-10 16:16:11 |
| frt-12312019xex231.htm | 3146 | 2020-02-10 16:16:11 |
| frt-12312019xex311.htm | 13424 | 2020-02-10 16:16:11 |
| frt-12312019xex312.htm | 13711 | 2020-02-10 16:16:11 |
| frt-12312019xex321.htm | 7106 | 2020-02-10 16:16:11 |
| frt-12312019xex322.htm | 7420 | 2020-02-10 16:16:11 |
| frt-12312019xex48.htm | 101633 | 2020-02-10 16:16:11 |
| frt-20191231.xsd | 101077 | 2020-02-10 16:16:11 |
| frt-20191231_cal.xml | 110074 | 2020-02-10 16:16:11 |
| frt-20191231_def.xml | 546904 | 2020-02-10 16:16:11 |
| frt-20191231_lab.xml | 1221994 | 2020-02-10 16:16:11 |
| frt-20191231_pre.xml | 747215 | 2020-02-10 16:16:11 |
| MetaLinks.json | 941317 | 2020-02-10 16:16:11 |
| R1.htm | 64724 | 2020-02-10 16:16:11 |
| R10.htm | 17174 | 2020-02-10 16:16:11 |
| R11.htm | 74866 | 2020-02-10 16:16:11 |
| R12.htm | 202663 | 2020-02-10 16:16:11 |
| R13.htm | 39033 | 2020-02-10 16:16:11 |
| R14.htm | 35263 | 2020-02-10 16:16:11 |
| R15.htm | 13668 | 2020-02-10 16:16:11 |
| R16.htm | 60000 | 2020-02-10 16:16:11 |
| R17.htm | 14457 | 2020-02-10 16:16:11 |
| R18.htm | 29695 | 2020-02-10 16:16:11 |
| R19.htm | 67412 | 2020-02-10 16:16:11 |
| R2.htm | 96065 | 2020-02-10 16:16:11 |
| R20.htm | 8589 | 2020-02-10 16:16:11 |
| R21.htm | 41298 | 2020-02-10 16:16:11 |
| R22.htm | 65281 | 2020-02-10 16:16:11 |
| R23.htm | 5689 | 2020-02-10 16:16:11 |
| R24.htm | 844470 | 2020-02-10 16:16:11 |
| R25.htm | 844478 | 2020-02-10 16:16:11 |
| R26.htm | 44213 | 2020-02-10 16:16:11 |
| R27.htm | 121358 | 2020-02-10 16:16:11 |
| R28.htm | 89560 | 2020-02-10 16:16:11 |
| R29.htm | 20610 | 2020-02-10 16:16:11 |
| R3.htm | 35222 | 2020-02-10 16:16:11 |
| R30.htm | 77892 | 2020-02-10 16:16:11 |
| R31.htm | 177491 | 2020-02-10 16:16:11 |
| R32.htm | 32460 | 2020-02-10 16:16:11 |
| R33.htm | 24841 | 2020-02-10 16:16:11 |
| R34.htm | 60891 | 2020-02-10 16:16:11 |
| R35.htm | 12162 | 2020-02-10 16:16:11 |
| R36.htm | 29733 | 2020-02-10 16:16:11 |
| R37.htm | 70207 | 2020-02-10 16:16:11 |
| R38.htm | 40303 | 2020-02-10 16:16:11 |
| R39.htm | 65288 | 2020-02-10 16:16:11 |
| R4.htm | 81676 | 2020-02-10 16:16:11 |
| R40.htm | 5789 | 2020-02-10 16:16:11 |
| R41.htm | 6682 | 2020-02-10 16:16:11 |
| R42.htm | 14986 | 2020-02-10 16:16:11 |
| R43.htm | 3993 | 2020-02-10 16:16:11 |
| R44.htm | 24102 | 2020-02-10 16:16:11 |
| R45.htm | 12626 | 2020-02-10 16:16:11 |
| R46.htm | 23277 | 2020-02-10 16:16:11 |
| R47.htm | 11908 | 2020-02-10 16:16:11 |
| R48.htm | 8706 | 2020-02-10 16:16:11 |
| R49.htm | 36644 | 2020-02-10 16:16:11 |
| R5.htm | 94769 | 2020-02-10 16:16:11 |
| R50.htm | 13541 | 2020-02-10 16:16:11 |
| R51.htm | 29518 | 2020-02-10 16:16:11 |
| R52.htm | 134855 | 2020-02-10 16:16:11 |
| R53.htm | 74369 | 2020-02-10 16:16:11 |
| R54.htm | 128999 | 2020-02-10 16:16:11 |
| R55.htm | 78307 | 2020-02-10 16:16:11 |
| R56.htm | 47617 | 2020-02-10 16:16:11 |
| R57.htm | 12626 | 2020-02-10 16:16:11 |
| R58.htm | 34061 | 2020-02-10 16:16:11 |
| R59.htm | 14039 | 2020-02-10 16:16:11 |
| R6.htm | 4721 | 2020-02-10 16:16:11 |
| R60.htm | 69173 | 2020-02-10 16:16:11 |
| R61.htm | 19507 | 2020-02-10 16:16:11 |
| R62.htm | 21540 | 2020-02-10 16:16:11 |
| R63.htm | 52119 | 2020-02-10 16:16:11 |
| R64.htm | 30448 | 2020-02-10 16:16:11 |
| R65.htm | 33863 | 2020-02-10 16:16:11 |
| R66.htm | 26620 | 2020-02-10 16:16:11 |
| R67.htm | 9461 | 2020-02-10 16:16:11 |
| R68.htm | 11690 | 2020-02-10 16:16:11 |
| R69.htm | 35539 | 2020-02-10 16:16:11 |
| R7.htm | 88280 | 2020-02-10 16:16:11 |
| R70.htm | 24075 | 2020-02-10 16:16:11 |
| R71.htm | 14989 | 2020-02-10 16:16:11 |
| R72.htm | 40395 | 2020-02-10 16:16:11 |
| R73.htm | 15858 | 2020-02-10 16:16:11 |
| R74.htm | 12538 | 2020-02-10 16:16:11 |
| R75.htm | 39807 | 2020-02-10 16:16:11 |
| R76.htm | 36796 | 2020-02-10 16:16:11 |
| R77.htm | 31266 | 2020-02-10 16:16:11 |
| R78.htm | 10119 | 2020-02-10 16:16:11 |
| R79.htm | 578109 | 2020-02-10 16:16:11 |
| R8.htm | 6598 | 2020-02-10 16:16:11 |
| R80.htm | 26741 | 2020-02-10 16:16:11 |
| R81.htm | 47023 | 2020-02-10 16:16:11 |
| R9.htm | 152019 | 2020-02-10 16:16:11 |
| report.css | 2767 | 2020-02-10 16:16:11 |
| Show.js | 1085 | 2020-02-10 16:16:11 |