Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000102729-22-000008-index-headers.html | 2022-02-23 16:25:47 | |
| 0000102729-22-000008-index.html | 2022-02-23 16:25:47 | |
| 0000102729-22-000008.txt | 2022-02-23 16:25:47 | |
 0000102729-22-000008-xbrl.zip | 725345 | 2022-02-23 16:25:47 |
| exhibit_104x2021xformofopt.htm | 52198 | 2022-02-23 16:25:47 |
| exhibit_105x2021xformofdom.htm | 48798 | 2022-02-23 16:25:47 |
| exhibit_106x2021xformofdir.htm | 24026 | 2022-02-23 16:25:47 |
| exhibit_107x2021xformofint.htm | 31455 | 2022-02-23 16:25:47 |
| exhibit_21x2021q4xsubsidia.htm | 29157 | 2022-02-23 16:25:47 |
| exhibit_23x2021q4xconsent.htm | 2679 | 2022-02-23 16:25:47 |
| exhibit_24x2021q4xpoa.htm | 9700 | 2022-02-23 16:25:47 |
| exhibit_311x2021q4xceo.htm | 8221 | 2022-02-23 16:25:47 |
| exhibit_312x2021q4xcfo.htm | 8446 | 2022-02-23 16:25:47 |
| exhibit_321x2021q4xsignatu.htm | 8414 | 2022-02-23 16:25:47 |
| FilingSummary.xml | 54161 | 2022-02-23 16:25:47 |
| Financial_Report.xlsx | 152970 | 2022-02-23 16:25:47 |
 image_0.jpg | 166 | 2022-02-23 16:25:47 |
 image_01.jpg | 158 | 2022-02-23 16:25:47 |
 image_1.jpg | 151 | 2022-02-23 16:25:47 |
 image_11.jpg | 164 | 2022-02-23 16:25:47 |
| MetaLinks.json | 1096082 | 2022-02-23 16:25:47 |
| R1.htm | 63196 | 2022-02-23 16:25:47 |
| R10.htm | 15152 | 2022-02-23 16:25:47 |
| R11.htm | 83096 | 2022-02-23 16:25:47 |
| R12.htm | 16834 | 2022-02-23 16:25:47 |
| R13.htm | 43363 | 2022-02-23 16:25:47 |
| R14.htm | 11077 | 2022-02-23 16:25:47 |
| R15.htm | 11027 | 2022-02-23 16:25:47 |
| R16.htm | 15196 | 2022-02-23 16:25:47 |
| R17.htm | 92846 | 2022-02-23 16:25:47 |
| R18.htm | 5045 | 2022-02-23 16:25:47 |
| R19.htm | 94856 | 2022-02-23 16:25:47 |
| R2.htm | 7869 | 2022-02-23 16:25:47 |
| R20.htm | 24551 | 2022-02-23 16:25:47 |
| R21.htm | 78341 | 2022-02-23 16:25:47 |
| R22.htm | 27630 | 2022-02-23 16:25:47 |
| R23.htm | 6895 | 2022-02-23 16:25:47 |
| R24.htm | 28701 | 2022-02-23 16:25:47 |
| R25.htm | 46935 | 2022-02-23 16:25:47 |
| R26.htm | 12990 | 2022-02-23 16:25:47 |
| R27.htm | 5919 | 2022-02-23 16:25:47 |
| R28.htm | 116127 | 2022-02-23 16:25:47 |
| R29.htm | 35766 | 2022-02-23 16:25:47 |
| R3.htm | 97020 | 2022-02-23 16:25:47 |
| R30.htm | 136006 | 2022-02-23 16:25:47 |
| R31.htm | 81404 | 2022-02-23 16:25:47 |
| R32.htm | 54817 | 2022-02-23 16:25:47 |
| R33.htm | 8176 | 2022-02-23 16:25:47 |
| R34.htm | 44235 | 2022-02-23 16:25:47 |
| R35.htm | 9530 | 2022-02-23 16:25:47 |
| R36.htm | 11792 | 2022-02-23 16:25:47 |
| R37.htm | 14759 | 2022-02-23 16:25:47 |
| R38.htm | 94080 | 2022-02-23 16:25:47 |
| R39.htm | 97925 | 2022-02-23 16:25:47 |
| R4.htm | 60705 | 2022-02-23 16:25:47 |
| R40.htm | 26890 | 2022-02-23 16:25:47 |
| R41.htm | 80178 | 2022-02-23 16:25:47 |
| R42.htm | 25135 | 2022-02-23 16:25:47 |
| R43.htm | 23176 | 2022-02-23 16:25:47 |
| R44.htm | 43594 | 2022-02-23 16:25:47 |
| R45.htm | 12805 | 2022-02-23 16:25:47 |
| R46.htm | 110674 | 2022-02-23 16:25:47 |
| R47.htm | 34739 | 2022-02-23 16:25:47 |
| R48.htm | 130534 | 2022-02-23 16:25:47 |
| R49.htm | 30396 | 2022-02-23 16:25:47 |
| R5.htm | 8133 | 2022-02-23 16:25:47 |
| R50.htm | 12230 | 2022-02-23 16:25:47 |
| R51.htm | 24446 | 2022-02-23 16:25:47 |
| R52.htm | 7414 | 2022-02-23 16:25:47 |
| R53.htm | 27011 | 2022-02-23 16:25:47 |
| R54.htm | 58257 | 2022-02-23 16:25:47 |
| R55.htm | 11870 | 2022-02-23 16:25:47 |
| R56.htm | 119276 | 2022-02-23 16:25:47 |
| R57.htm | 9507 | 2022-02-23 16:25:47 |
| R58.htm | 69373 | 2022-02-23 16:25:47 |
| R59.htm | 11399 | 2022-02-23 16:25:47 |
| R6.htm | 131885 | 2022-02-23 16:25:47 |
| R60.htm | 12964 | 2022-02-23 16:25:47 |
| R61.htm | 12498 | 2022-02-23 16:25:47 |
| R62.htm | 17539 | 2022-02-23 16:25:47 |
| R63.htm | 40143 | 2022-02-23 16:25:47 |
| R64.htm | 22851 | 2022-02-23 16:25:47 |
| R65.htm | 40890 | 2022-02-23 16:25:47 |
| R66.htm | 17408 | 2022-02-23 16:25:47 |
| R67.htm | 13125 | 2022-02-23 16:25:47 |
| R68.htm | 156353 | 2022-02-23 16:25:47 |
| R69.htm | 103819 | 2022-02-23 16:25:47 |
| R7.htm | 20215 | 2022-02-23 16:25:47 |
| R70.htm | 92899 | 2022-02-23 16:25:47 |
| R71.htm | 18016 | 2022-02-23 16:25:47 |
| R72.htm | 21795 | 2022-02-23 16:25:47 |
| R73.htm | 19305 | 2022-02-23 16:25:47 |
| R74.htm | 40123 | 2022-02-23 16:25:47 |
| R75.htm | 26387 | 2022-02-23 16:25:47 |
| R76.htm | 12150 | 2022-02-23 16:25:47 |
| R77.htm | 30928 | 2022-02-23 16:25:47 |
| R78.htm | 15368 | 2022-02-23 16:25:47 |
| R79.htm | 18993 | 2022-02-23 16:25:47 |
| R8.htm | 111852 | 2022-02-23 16:25:47 |
| R80.htm | 34497 | 2022-02-23 16:25:47 |
| R81.htm | 17359 | 2022-02-23 16:25:47 |
| R82.htm | 11856 | 2022-02-23 16:25:47 |
| R83.htm | 116115 | 2022-02-23 16:25:47 |
| R84.htm | 33901 | 2022-02-23 16:25:47 |
| R85.htm | 30819 | 2022-02-23 16:25:47 |
| R86.htm | 18028 | 2022-02-23 16:25:47 |
| R87.htm | 16519 | 2022-02-23 16:25:47 |
| R88.htm | 20996 | 2022-02-23 16:25:47 |
| R89.htm | 100334 | 2022-02-23 16:25:47 |
| R9.htm | 68308 | 2022-02-23 16:25:47 |
| R90.htm | 26657 | 2022-02-23 16:25:47 |
| report.css | 2768 | 2022-02-23 16:25:47 |
| Show.js | 1086 | 2022-02-23 16:25:47 |
| vmi-20211225.htm | 3250462 | 2022-02-23 16:25:47 |
| vmi-20211225.xsd | 75774 | 2022-02-23 16:25:47 |
| vmi-20211225_cal.xml | 123169 | 2022-02-23 16:25:47 |
| vmi-20211225_def.xml | 462004 | 2022-02-23 16:25:47 |
 vmi-20211225_g1.jpg | 123655 | 2022-02-23 16:25:47 |
 vmi-20211225_g2.jpg | 118766 | 2022-02-23 16:25:47 |
| vmi-20211225_htm.xml | 3027384 | 2022-02-23 16:25:47 |
| vmi-20211225_lab.xml | 1150732 | 2022-02-23 16:25:47 |
| vmi-20211225_pre.xml | 757576 | 2022-02-23 16:25:47 |