Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000102729-23-000019-index-headers.html | 2023-03-01 15:40:48 | |
| 0000102729-23-000019-index.html | 2023-03-01 15:40:48 | |
| 0000102729-23-000019.txt | 2023-03-01 15:40:48 | |
 0000102729-23-000019-xbrl.zip | 579774 | 2023-03-01 15:40:48 |
| FilingSummary.xml | 55906 | 2023-03-01 15:40:48 |
| Financial_Report.xlsx | 179031 | 2023-03-01 15:40:48 |
| MetaLinks.json | 1243859 | 2023-03-01 15:40:48 |
| R1.htm | 68180 | 2023-03-01 15:40:48 |
| R10.htm | 130794 | 2023-03-01 15:40:48 |
| R11.htm | 44992 | 2023-03-01 15:40:48 |
| R12.htm | 31501 | 2023-03-01 15:40:48 |
| R13.htm | 55452 | 2023-03-01 15:40:48 |
| R14.htm | 17704 | 2023-03-01 15:40:48 |
| R15.htm | 17346 | 2023-03-01 15:40:48 |
| R16.htm | 21703 | 2023-03-01 15:40:48 |
| R17.htm | 144038 | 2023-03-01 15:40:48 |
| R18.htm | 5233 | 2023-03-01 15:40:48 |
| R19.htm | 147371 | 2023-03-01 15:40:48 |
| R2.htm | 99043 | 2023-03-01 15:40:48 |
| R20.htm | 40707 | 2023-03-01 15:40:48 |
| R21.htm | 157988 | 2023-03-01 15:40:48 |
| R22.htm | 45733 | 2023-03-01 15:40:48 |
| R23.htm | 7081 | 2023-03-01 15:40:48 |
| R24.htm | 70781 | 2023-03-01 15:40:48 |
| R25.htm | 75455 | 2023-03-01 15:40:48 |
| R26.htm | 18538 | 2023-03-01 15:40:48 |
| R27.htm | 6150 | 2023-03-01 15:40:48 |
| R28.htm | 230379 | 2023-03-01 15:40:48 |
| R29.htm | 62181 | 2023-03-01 15:40:48 |
| R3.htm | 63363 | 2023-03-01 15:40:48 |
| R30.htm | 409260 | 2023-03-01 15:40:48 |
| R31.htm | 185481 | 2023-03-01 15:40:48 |
| R32.htm | 99842 | 2023-03-01 15:40:48 |
| R33.htm | 40016 | 2023-03-01 15:40:48 |
| R34.htm | 32629 | 2023-03-01 15:40:48 |
| R35.htm | 54043 | 2023-03-01 15:40:48 |
| R36.htm | 16072 | 2023-03-01 15:40:48 |
| R37.htm | 18073 | 2023-03-01 15:40:48 |
| R38.htm | 20967 | 2023-03-01 15:40:48 |
| R39.htm | 146311 | 2023-03-01 15:40:48 |
| R4.htm | 10188 | 2023-03-01 15:40:48 |
| R40.htm | 151210 | 2023-03-01 15:40:48 |
| R41.htm | 43220 | 2023-03-01 15:40:48 |
| R42.htm | 159415 | 2023-03-01 15:40:48 |
| R43.htm | 43444 | 2023-03-01 15:40:48 |
| R44.htm | 63425 | 2023-03-01 15:40:48 |
| R45.htm | 71028 | 2023-03-01 15:40:48 |
| R46.htm | 17941 | 2023-03-01 15:40:48 |
| R47.htm | 225015 | 2023-03-01 15:40:48 |
| R48.htm | 62847 | 2023-03-01 15:40:48 |
| R49.htm | 425305 | 2023-03-01 15:40:48 |
| R5.htm | 133933 | 2023-03-01 15:40:48 |
| R50.htm | 36463 | 2023-03-01 15:40:48 |
| R51.htm | 12128 | 2023-03-01 15:40:48 |
| R52.htm | 24195 | 2023-03-01 15:40:48 |
| R53.htm | 7402 | 2023-03-01 15:40:48 |
| R54.htm | 29283 | 2023-03-01 15:40:48 |
| R55.htm | 50988 | 2023-03-01 15:40:48 |
| R56.htm | 16580 | 2023-03-01 15:40:48 |
| R57.htm | 146879 | 2023-03-01 15:40:48 |
| R58.htm | 59247 | 2023-03-01 15:40:48 |
| R59.htm | 12856 | 2023-03-01 15:40:48 |
| R6.htm | 13254 | 2023-03-01 15:40:48 |
| R60.htm | 56292 | 2023-03-01 15:40:48 |
| R61.htm | 11774 | 2023-03-01 15:40:48 |
| R62.htm | 12403 | 2023-03-01 15:40:48 |
| R63.htm | 17371 | 2023-03-01 15:40:48 |
| R64.htm | 39769 | 2023-03-01 15:40:48 |
| R65.htm | 24666 | 2023-03-01 15:40:48 |
| R66.htm | 30107 | 2023-03-01 15:40:48 |
| R67.htm | 14477 | 2023-03-01 15:40:48 |
| R68.htm | 12992 | 2023-03-01 15:40:48 |
| R69.htm | 158083 | 2023-03-01 15:40:48 |
| R7.htm | 115463 | 2023-03-01 15:40:48 |
| R70.htm | 98433 | 2023-03-01 15:40:48 |
| R71.htm | 92818 | 2023-03-01 15:40:48 |
| R72.htm | 22169 | 2023-03-01 15:40:48 |
| R73.htm | 19137 | 2023-03-01 15:40:48 |
| R74.htm | 39890 | 2023-03-01 15:40:48 |
| R75.htm | 35342 | 2023-03-01 15:40:48 |
| R76.htm | 10174 | 2023-03-01 15:40:48 |
| R77.htm | 35401 | 2023-03-01 15:40:48 |
| R78.htm | 18035 | 2023-03-01 15:40:48 |
| R79.htm | 21055 | 2023-03-01 15:40:48 |
| R8.htm | 68007 | 2023-03-01 15:40:48 |
| R80.htm | 60606 | 2023-03-01 15:40:48 |
| R81.htm | 12898 | 2023-03-01 15:40:48 |
| R82.htm | 11753 | 2023-03-01 15:40:48 |
| R83.htm | 122483 | 2023-03-01 15:40:48 |
| R84.htm | 33766 | 2023-03-01 15:40:48 |
| R85.htm | 24515 | 2023-03-01 15:40:48 |
| R86.htm | 17871 | 2023-03-01 15:40:48 |
| R87.htm | 14211 | 2023-03-01 15:40:48 |
| R88.htm | 20797 | 2023-03-01 15:40:48 |
| R89.htm | 120153 | 2023-03-01 15:40:48 |
| R9.htm | 15031 | 2023-03-01 15:40:48 |
| R90.htm | 28899 | 2023-03-01 15:40:48 |
| report.css | 2768 | 2023-03-01 15:40:48 |
| Show.js | 1086 | 2023-03-01 15:40:48 |
| vmi-20221231.xsd | 84728 | 2023-03-01 15:40:48 |
| vmi-20221231x10k.htm | 4401145 | 2023-03-01 15:40:48 |
 vmi-20221231x10k003.jpg | 62287 | 2023-03-01 15:40:48 |
 vmi-20221231x10k004.jpg | 59589 | 2023-03-01 15:40:48 |
| vmi-20221231x10k_htm.xml | 4745484 | 2023-03-01 15:40:48 |
| vmi-20221231xex21d1.htm | 43092 | 2023-03-01 15:40:48 |
| vmi-20221231xex23d1.htm | 3899 | 2023-03-01 15:40:48 |
| vmi-20221231xex24d1.htm | 13858 | 2023-03-01 15:40:48 |
| vmi-20221231xex31d1.htm | 15497 | 2023-03-01 15:40:48 |
| vmi-20221231xex31d2.htm | 14587 | 2023-03-01 15:40:48 |
| vmi-20221231xex32d1.htm | 13721 | 2023-03-01 15:40:48 |
| vmi-20221231_cal.xml | 133606 | 2023-03-01 15:40:48 |
| vmi-20221231_def.xml | 375030 | 2023-03-01 15:40:48 |
| vmi-20221231_lab.xml | 1024622 | 2023-03-01 15:40:48 |
| vmi-20221231_pre.xml | 744644 | 2023-03-01 15:40:48 |