Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-010645-index-headers.html | 2022-03-16 16:16:02 | |
| 0001564590-22-010645-index.html | 2022-03-16 16:16:02 | |
| 0001564590-22-010645.txt | 2022-03-16 16:16:02 | |
 0001564590-22-010645-xbrl.zip | 636812 | 2022-03-16 16:16:02 |
| FilingSummary.xml | 59058 | 2022-03-16 16:16:02 |
| Financial_Report.xlsx | 137085 | 2022-03-16 16:16:02 |
 gyay05w0vsr3000001.jpg | 410417 | 2022-03-16 16:16:02 |
| MetaLinks.json | 974480 | 2022-03-16 16:16:02 |
| R1.htm | 71720 | 2022-03-16 16:16:02 |
| R10.htm | 6285 | 2022-03-16 16:16:02 |
| R11.htm | 208592 | 2022-03-16 16:16:02 |
| R12.htm | 17473 | 2022-03-16 16:16:02 |
| R13.htm | 19598 | 2022-03-16 16:16:02 |
| R14.htm | 68315 | 2022-03-16 16:16:02 |
| R15.htm | 72701 | 2022-03-16 16:16:02 |
| R16.htm | 37296 | 2022-03-16 16:16:02 |
| R17.htm | 39472 | 2022-03-16 16:16:02 |
| R18.htm | 30822 | 2022-03-16 16:16:02 |
| R19.htm | 159167 | 2022-03-16 16:16:02 |
| R2.htm | 119878 | 2022-03-16 16:16:02 |
| R20.htm | 158714 | 2022-03-16 16:16:02 |
| R21.htm | 67479 | 2022-03-16 16:16:02 |
| R22.htm | 236110 | 2022-03-16 16:16:02 |
| R23.htm | 244627 | 2022-03-16 16:16:02 |
| R24.htm | 10379 | 2022-03-16 16:16:02 |
| R25.htm | 33660 | 2022-03-16 16:16:02 |
| R26.htm | 10721 | 2022-03-16 16:16:02 |
| R27.htm | 7204 | 2022-03-16 16:16:02 |
| R28.htm | 245031 | 2022-03-16 16:16:02 |
| R29.htm | 8847 | 2022-03-16 16:16:02 |
| R3.htm | 19294 | 2022-03-16 16:16:02 |
| R30.htm | 255444 | 2022-03-16 16:16:02 |
| R31.htm | 154074 | 2022-03-16 16:16:02 |
| R32.htm | 11937 | 2022-03-16 16:16:02 |
| R33.htm | 64887 | 2022-03-16 16:16:02 |
| R34.htm | 74181 | 2022-03-16 16:16:02 |
| R35.htm | 35388 | 2022-03-16 16:16:02 |
| R36.htm | 37122 | 2022-03-16 16:16:02 |
| R37.htm | 29442 | 2022-03-16 16:16:02 |
| R38.htm | 153982 | 2022-03-16 16:16:02 |
| R39.htm | 144599 | 2022-03-16 16:16:02 |
| R4.htm | 92212 | 2022-03-16 16:16:02 |
| R40.htm | 58192 | 2022-03-16 16:16:02 |
| R41.htm | 234538 | 2022-03-16 16:16:02 |
| R42.htm | 241957 | 2022-03-16 16:16:02 |
| R43.htm | 26809 | 2022-03-16 16:16:02 |
| R44.htm | 240872 | 2022-03-16 16:16:02 |
| R45.htm | 9940 | 2022-03-16 16:16:02 |
| R46.htm | 17735 | 2022-03-16 16:16:02 |
| R47.htm | 62187 | 2022-03-16 16:16:02 |
| R48.htm | 27716 | 2022-03-16 16:16:02 |
| R49.htm | 17375 | 2022-03-16 16:16:02 |
| R5.htm | 15091 | 2022-03-16 16:16:02 |
| R50.htm | 7833 | 2022-03-16 16:16:02 |
| R51.htm | 30671 | 2022-03-16 16:16:02 |
| R52.htm | 9346 | 2022-03-16 16:16:02 |
| R53.htm | 6545 | 2022-03-16 16:16:02 |
| R54.htm | 27808 | 2022-03-16 16:16:02 |
| R55.htm | 30003 | 2022-03-16 16:16:02 |
| R56.htm | 15635 | 2022-03-16 16:16:02 |
| R57.htm | 7904 | 2022-03-16 16:16:02 |
| R58.htm | 7565 | 2022-03-16 16:16:02 |
| R59.htm | 9967 | 2022-03-16 16:16:02 |
| R6.htm | 29476 | 2022-03-16 16:16:02 |
| R60.htm | 6589 | 2022-03-16 16:16:02 |
| R61.htm | 5852 | 2022-03-16 16:16:02 |
| R62.htm | 11524 | 2022-03-16 16:16:02 |
| R63.htm | 21687 | 2022-03-16 16:16:02 |
| R64.htm | 15054 | 2022-03-16 16:16:02 |
| R65.htm | 45990 | 2022-03-16 16:16:02 |
| R66.htm | 50296 | 2022-03-16 16:16:02 |
| R67.htm | 38711 | 2022-03-16 16:16:02 |
| R68.htm | 26427 | 2022-03-16 16:16:02 |
| R69.htm | 20682 | 2022-03-16 16:16:02 |
| R7.htm | 4540 | 2022-03-16 16:16:02 |
| R70.htm | 9986 | 2022-03-16 16:16:02 |
| R71.htm | 17423 | 2022-03-16 16:16:02 |
| R72.htm | 60132 | 2022-03-16 16:16:02 |
| R73.htm | 10767 | 2022-03-16 16:16:02 |
| R74.htm | 12178 | 2022-03-16 16:16:02 |
| R75.htm | 30069 | 2022-03-16 16:16:02 |
| R76.htm | 19401 | 2022-03-16 16:16:02 |
| R77.htm | 34268 | 2022-03-16 16:16:02 |
| R78.htm | 14969 | 2022-03-16 16:16:02 |
| R79.htm | 11547 | 2022-03-16 16:16:02 |
| R8.htm | 106279 | 2022-03-16 16:16:02 |
| R80.htm | 19434 | 2022-03-16 16:16:02 |
| R81.htm | 22629 | 2022-03-16 16:16:02 |
| R82.htm | 28026 | 2022-03-16 16:16:02 |
| R83.htm | 16753 | 2022-03-16 16:16:02 |
| R84.htm | 61853 | 2022-03-16 16:16:02 |
| R85.htm | 19219 | 2022-03-16 16:16:02 |
| R86.htm | 28465 | 2022-03-16 16:16:02 |
| R87.htm | 7226 | 2022-03-16 16:16:02 |
| R88.htm | 6620 | 2022-03-16 16:16:02 |
| R89.htm | 36329 | 2022-03-16 16:16:02 |
| R9.htm | 40484 | 2022-03-16 16:16:02 |
| R90.htm | 16550 | 2022-03-16 16:16:02 |
| R91.htm | 12536 | 2022-03-16 16:16:02 |
| R92.htm | 15359 | 2022-03-16 16:16:02 |
| report.css | 2768 | 2022-03-16 16:16:02 |
| Show.js | 1086 | 2022-03-16 16:16:02 |
| ulh-10k_20211231.htm | 3721677 | 2022-03-16 16:16:02 |
| ulh-10k_20211231_htm.xml | 3872159 | 2022-03-16 16:16:02 |
| ulh-20211231.xsd | 87049 | 2022-03-16 16:16:02 |
| ulh-20211231_cal.xml | 97864 | 2022-03-16 16:16:02 |
| ulh-20211231_def.xml | 322567 | 2022-03-16 16:16:02 |
| ulh-20211231_lab.xml | 663250 | 2022-03-16 16:16:02 |
| ulh-20211231_pre.xml | 531702 | 2022-03-16 16:16:02 |
| ulh-ex211_7.htm | 37108 | 2022-03-16 16:16:02 |
| ulh-ex231_144.htm | 3040 | 2022-03-16 16:16:02 |
| ulh-ex232_10.htm | 3480 | 2022-03-16 16:16:02 |
| ulh-ex311_6.htm | 20276 | 2022-03-16 16:16:02 |
| ulh-ex312_8.htm | 20223 | 2022-03-16 16:16:02 |
| ulh-ex321_11.htm | 5659 | 2022-03-16 16:16:02 |
| ulh-ex42_9.htm | 29659 | 2022-03-16 16:16:02 |