Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-021617-index-headers.html | 2024-02-28 06:05:32 | |
| 0000950170-24-021617-index.html | 2024-02-28 06:05:32 | |
| 0000950170-24-021617.txt | 2024-02-28 06:05:32 | |
 0000950170-24-021617-xbrl.zip | 495377 | 2024-02-28 06:05:32 |
| FilingSummary.xml | 68189 | 2024-02-28 06:05:32 |
| Financial_Report.xlsx | 178701 | 2024-02-28 06:05:32 |
| icfi-20231231.htm | 3777593 | 2024-02-28 06:05:32 |
| icfi-20231231.xsd | 2415638 | 2024-02-28 06:05:32 |
| icfi-20231231_htm.xml | 3719830 | 2024-02-28 06:05:32 |
| icfi-ex10_17.htm | 129516 | 2024-02-28 06:05:32 |
| icfi-ex21_0.htm | 53052 | 2024-02-28 06:05:32 |
| icfi-ex23_1.htm | 4711 | 2024-02-28 06:05:32 |
| icfi-ex31_1.htm | 10647 | 2024-02-28 06:05:32 |
| icfi-ex31_2.htm | 10598 | 2024-02-28 06:05:32 |
| icfi-ex32_1.htm | 6934 | 2024-02-28 06:05:32 |
| icfi-ex32_2.htm | 6904 | 2024-02-28 06:05:32 |
| icfi-ex97_0.htm | 12950 | 2024-02-28 06:05:32 |
 img1353262_0.jpg | 55501 | 2024-02-28 06:05:32 |
 img75960293_0.jpg | 27327 | 2024-02-28 06:05:32 |
| MetaLinks.json | 1386404 | 2024-02-28 06:05:32 |
| R1.htm | 71376 | 2024-02-28 06:05:32 |
| R10.htm | 20112 | 2024-02-28 06:05:32 |
| R100.htm | 9506 | 2024-02-28 06:05:32 |
| R101.htm | 31179 | 2024-02-28 06:05:32 |
| R102.htm | 35984 | 2024-02-28 06:05:32 |
| R103.htm | 19508 | 2024-02-28 06:05:32 |
| R104.htm | 12606 | 2024-02-28 06:05:32 |
| R105.htm | 6908 | 2024-02-28 06:05:32 |
| R11.htm | 25583 | 2024-02-28 06:05:32 |
| R12.htm | 90753 | 2024-02-28 06:05:32 |
| R13.htm | 94842 | 2024-02-28 06:05:32 |
| R14.htm | 25300 | 2024-02-28 06:05:32 |
| R15.htm | 33618 | 2024-02-28 06:05:32 |
| R16.htm | 90184 | 2024-02-28 06:05:32 |
| R17.htm | 95857 | 2024-02-28 06:05:32 |
| R18.htm | 23525 | 2024-02-28 06:05:32 |
| R19.htm | 247033 | 2024-02-28 06:05:32 |
| R2.htm | 123657 | 2024-02-28 06:05:32 |
| R20.htm | 102454 | 2024-02-28 06:05:32 |
| R21.htm | 346585 | 2024-02-28 06:05:32 |
| R22.htm | 57221 | 2024-02-28 06:05:32 |
| R23.htm | 38120 | 2024-02-28 06:05:32 |
| R24.htm | 11174 | 2024-02-28 06:05:32 |
| R25.htm | 75867 | 2024-02-28 06:05:32 |
| R26.htm | 9447 | 2024-02-28 06:05:32 |
| R27.htm | 15503 | 2024-02-28 06:05:32 |
| R28.htm | 13141 | 2024-02-28 06:05:32 |
| R29.htm | 7029 | 2024-02-28 06:05:32 |
| R3.htm | 20911 | 2024-02-28 06:05:32 |
| R30.htm | 40016 | 2024-02-28 06:05:32 |
| R31.htm | 124659 | 2024-02-28 06:05:32 |
| R32.htm | 34429 | 2024-02-28 06:05:32 |
| R33.htm | 15141 | 2024-02-28 06:05:32 |
| R34.htm | 22438 | 2024-02-28 06:05:32 |
| R35.htm | 92081 | 2024-02-28 06:05:32 |
| R36.htm | 90781 | 2024-02-28 06:05:32 |
| R37.htm | 23656 | 2024-02-28 06:05:32 |
| R38.htm | 32923 | 2024-02-28 06:05:32 |
| R39.htm | 77500 | 2024-02-28 06:05:32 |
| R4.htm | 76565 | 2024-02-28 06:05:32 |
| R40.htm | 89381 | 2024-02-28 06:05:32 |
| R41.htm | 17917 | 2024-02-28 06:05:32 |
| R42.htm | 232146 | 2024-02-28 06:05:32 |
| R43.htm | 101591 | 2024-02-28 06:05:32 |
| R44.htm | 346646 | 2024-02-28 06:05:32 |
| R45.htm | 29520 | 2024-02-28 06:05:32 |
| R46.htm | 35176 | 2024-02-28 06:05:32 |
| R47.htm | 75171 | 2024-02-28 06:05:32 |
| R48.htm | 40539 | 2024-02-28 06:05:32 |
| R49.htm | 7974 | 2024-02-28 06:05:32 |
| R5.htm | 58824 | 2024-02-28 06:05:32 |
| R50.htm | 55338 | 2024-02-28 06:05:32 |
| R51.htm | 11171 | 2024-02-28 06:05:32 |
| R52.htm | 9185 | 2024-02-28 06:05:32 |
| R53.htm | 11180 | 2024-02-28 06:05:32 |
| R54.htm | 19228 | 2024-02-28 06:05:32 |
| R55.htm | 5133 | 2024-02-28 06:05:32 |
| R56.htm | 16708 | 2024-02-28 06:05:32 |
| R57.htm | 13803 | 2024-02-28 06:05:32 |
| R58.htm | 21155 | 2024-02-28 06:05:32 |
| R59.htm | 17628 | 2024-02-28 06:05:32 |
| R6.htm | 122512 | 2024-02-28 06:05:32 |
| R60.htm | 40102 | 2024-02-28 06:05:32 |
| R61.htm | 17605 | 2024-02-28 06:05:32 |
| R62.htm | 38557 | 2024-02-28 06:05:32 |
| R63.htm | 18241 | 2024-02-28 06:05:32 |
| R64.htm | 17208 | 2024-02-28 06:05:32 |
| R65.htm | 22970 | 2024-02-28 06:05:32 |
| R66.htm | 69803 | 2024-02-28 06:05:32 |
| R67.htm | 30978 | 2024-02-28 06:05:32 |
| R68.htm | 30172 | 2024-02-28 06:05:32 |
| R69.htm | 33982 | 2024-02-28 06:05:32 |
| R7.htm | 10146 | 2024-02-28 06:05:32 |
| R70.htm | 6262 | 2024-02-28 06:05:32 |
| R71.htm | 14207 | 2024-02-28 06:05:32 |
| R72.htm | 12367 | 2024-02-28 06:05:32 |
| R73.htm | 8862 | 2024-02-28 06:05:32 |
| R74.htm | 22972 | 2024-02-28 06:05:32 |
| R75.htm | 12108 | 2024-02-28 06:05:32 |
| R76.htm | 29804 | 2024-02-28 06:05:32 |
| R77.htm | 65711 | 2024-02-28 06:05:32 |
| R78.htm | 67432 | 2024-02-28 06:05:32 |
| R79.htm | 12501 | 2024-02-28 06:05:32 |
| R8.htm | 74649 | 2024-02-28 06:05:32 |
| R80.htm | 11470 | 2024-02-28 06:05:32 |
| R81.htm | 36541 | 2024-02-28 06:05:32 |
| R82.htm | 48942 | 2024-02-28 06:05:32 |
| R83.htm | 7008 | 2024-02-28 06:05:32 |
| R84.htm | 69861 | 2024-02-28 06:05:32 |
| R85.htm | 29810 | 2024-02-28 06:05:32 |
| R86.htm | 42118 | 2024-02-28 06:05:32 |
| R87.htm | 19588 | 2024-02-28 06:05:32 |
| R88.htm | 40895 | 2024-02-28 06:05:32 |
| R89.htm | 40846 | 2024-02-28 06:05:32 |
| R9.htm | 36824 | 2024-02-28 06:05:32 |
| R90.htm | 37132 | 2024-02-28 06:05:32 |
| R91.htm | 37394 | 2024-02-28 06:05:32 |
| R92.htm | 18808 | 2024-02-28 06:05:32 |
| R93.htm | 145978 | 2024-02-28 06:05:32 |
| R94.htm | 27059 | 2024-02-28 06:05:32 |
| R95.htm | 8127 | 2024-02-28 06:05:32 |
| R96.htm | 5520 | 2024-02-28 06:05:32 |
| R97.htm | 35790 | 2024-02-28 06:05:32 |
| R98.htm | 23178 | 2024-02-28 06:05:32 |
| R99.htm | 24798 | 2024-02-28 06:05:32 |
| report.css | 2768 | 2024-02-28 06:05:32 |
| Show.js | 1086 | 2024-02-28 06:05:32 |