Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-19-009033-index-headers.html | 2019-03-22 16:50:18 | |
| 0001564590-19-009033-index.html | 2019-03-22 16:50:18 | |
| 0001564590-19-009033.txt | 2019-03-22 16:50:18 | |
 0001564590-19-009033-xbrl.zip | 253909 | 2019-03-22 16:50:18 |
| FilingSummary.xml | 49276 | 2019-03-22 16:50:18 |
| Financial_Report.xlsx | 110714 | 2019-03-22 16:50:18 |
 gbu4zfkhb2t3000001.jpg | 15884 | 2019-03-22 16:50:18 |
| R1.htm | 35610 | 2019-03-22 16:50:18 |
| R10.htm | 70415 | 2019-03-22 16:50:18 |
| R11.htm | 77966 | 2019-03-22 16:50:18 |
| R12.htm | 103193 | 2019-03-22 16:50:18 |
| R13.htm | 303544 | 2019-03-22 16:50:18 |
| R14.htm | 7920 | 2019-03-22 16:50:18 |
| R15.htm | 10942 | 2019-03-22 16:50:18 |
| R16.htm | 265476 | 2019-03-22 16:50:18 |
| R17.htm | 5722 | 2019-03-22 16:50:18 |
| R18.htm | 181110 | 2019-03-22 16:50:18 |
| R19.htm | 85029 | 2019-03-22 16:50:18 |
| R2.htm | 83102 | 2019-03-22 16:50:18 |
| R20.htm | 49336 | 2019-03-22 16:50:18 |
| R21.htm | 22988 | 2019-03-22 16:50:18 |
| R22.htm | 332835 | 2019-03-22 16:50:18 |
| R23.htm | 229442 | 2019-03-22 16:50:18 |
| R24.htm | 123810 | 2019-03-22 16:50:18 |
| R25.htm | 66043 | 2019-03-22 16:50:18 |
| R26.htm | 81064 | 2019-03-22 16:50:18 |
| R27.htm | 95989 | 2019-03-22 16:50:18 |
| R28.htm | 303634 | 2019-03-22 16:50:18 |
| R29.htm | 268150 | 2019-03-22 16:50:18 |
| R3.htm | 21391 | 2019-03-22 16:50:18 |
| R30.htm | 176760 | 2019-03-22 16:50:18 |
| R31.htm | 87464 | 2019-03-22 16:50:18 |
| R32.htm | 49195 | 2019-03-22 16:50:18 |
| R33.htm | 20116 | 2019-03-22 16:50:18 |
| R34.htm | 55037 | 2019-03-22 16:50:18 |
| R35.htm | 23890 | 2019-03-22 16:50:18 |
| R36.htm | 40137 | 2019-03-22 16:50:18 |
| R37.htm | 20843 | 2019-03-22 16:50:18 |
| R38.htm | 41653 | 2019-03-22 16:50:18 |
| R39.htm | 19275 | 2019-03-22 16:50:18 |
| R4.htm | 56694 | 2019-03-22 16:50:18 |
| R40.htm | 28991 | 2019-03-22 16:50:18 |
| R41.htm | 19643 | 2019-03-22 16:50:18 |
| R42.htm | 17774 | 2019-03-22 16:50:18 |
| R43.htm | 23722 | 2019-03-22 16:50:18 |
| R44.htm | 11979 | 2019-03-22 16:50:18 |
| R45.htm | 9980 | 2019-03-22 16:50:18 |
| R46.htm | 10760 | 2019-03-22 16:50:18 |
| R47.htm | 28515 | 2019-03-22 16:50:18 |
| R48.htm | 76758 | 2019-03-22 16:50:18 |
| R49.htm | 41208 | 2019-03-22 16:50:18 |
| R5.htm | 33863 | 2019-03-22 16:50:18 |
| R50.htm | 17942 | 2019-03-22 16:50:18 |
| R51.htm | 13097 | 2019-03-22 16:50:18 |
| R52.htm | 27881 | 2019-03-22 16:50:18 |
| R53.htm | 9401 | 2019-03-22 16:50:18 |
| R54.htm | 8973 | 2019-03-22 16:50:18 |
| R55.htm | 59298 | 2019-03-22 16:50:18 |
| R56.htm | 17311 | 2019-03-22 16:50:18 |
| R57.htm | 28040 | 2019-03-22 16:50:18 |
| R58.htm | 77221 | 2019-03-22 16:50:18 |
| R59.htm | 10372 | 2019-03-22 16:50:18 |
| R6.htm | 50307 | 2019-03-22 16:50:18 |
| R60.htm | 27406 | 2019-03-22 16:50:18 |
| R61.htm | 43033 | 2019-03-22 16:50:18 |
| R62.htm | 25404 | 2019-03-22 16:50:18 |
| R63.htm | 19917 | 2019-03-22 16:50:18 |
| R64.htm | 9210 | 2019-03-22 16:50:18 |
| R65.htm | 21246 | 2019-03-22 16:50:18 |
| R66.htm | 106715 | 2019-03-22 16:50:18 |
| R67.htm | 33538 | 2019-03-22 16:50:18 |
| R68.htm | 16998 | 2019-03-22 16:50:18 |
| R69.htm | 20077 | 2019-03-22 16:50:18 |
| R7.htm | 101391 | 2019-03-22 16:50:18 |
| R70.htm | 28188 | 2019-03-22 16:50:18 |
| R71.htm | 4959 | 2019-03-22 16:50:18 |
| R72.htm | 18698 | 2019-03-22 16:50:18 |
| R73.htm | 6133 | 2019-03-22 16:50:18 |
| R74.htm | 18657 | 2019-03-22 16:50:18 |
| R75.htm | 19405 | 2019-03-22 16:50:18 |
| R8.htm | 271859 | 2019-03-22 16:50:18 |
| R9.htm | 125928 | 2019-03-22 16:50:18 |
| report.css | 2767 | 2019-03-22 16:50:18 |
| Show.js | 1085 | 2019-03-22 16:50:18 |
| uctt-10k_20181228.htm | 3935456 | 2019-03-22 16:50:18 |
| uctt-20181228.xml | 3851372 | 2019-03-22 16:50:18 |
| uctt-20181228.xsd | 69005 | 2019-03-22 16:50:18 |
| uctt-20181228_cal.xml | 96205 | 2019-03-22 16:50:18 |
| uctt-20181228_def.xml | 341092 | 2019-03-22 16:50:18 |
| uctt-20181228_lab.xml | 687508 | 2019-03-22 16:50:18 |
| uctt-20181228_pre.xml | 567148 | 2019-03-22 16:50:18 |
| uctt-ex121_9.htm | 142452 | 2019-03-22 16:50:18 |
| uctt-ex211_7.htm | 6647 | 2019-03-22 16:50:18 |
| uctt-ex231_11.htm | 2539 | 2019-03-22 16:50:18 |
| uctt-ex311_8.htm | 15087 | 2019-03-22 16:50:18 |
| uctt-ex312_10.htm | 14992 | 2019-03-22 16:50:18 |
| uctt-ex321_13.htm | 5215 | 2019-03-22 16:50:18 |
| uctt-ex322_6.htm | 5207 | 2019-03-22 16:50:18 |