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| 0000102729-22-000066.txt | 2022-11-02 13:55:44 | |
 0000102729-22-000066-xbrl.zip | 258999 | 2022-11-02 13:55:44 |
| FilingSummary.xml | 30571 | 2022-11-02 13:55:44 |
| Financial_Report.xlsx | 89452 | 2022-11-02 13:55:44 |
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| R1.htm | 51545 | 2022-11-02 13:55:44 |
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| R8.htm | 15395 | 2022-11-02 13:55:44 |
| R9.htm | 180698 | 2022-11-02 13:55:44 |
| report.css | 2767 | 2022-11-02 13:55:44 |
| Show.js | 1085 | 2022-11-02 13:55:44 |
| vmi-20220924.xsd | 38502 | 2022-11-02 13:55:44 |
| vmi-20220924x10q.htm | 2691018 | 2022-11-02 13:55:44 |
| vmi-20220924x10q_htm.xml | 2486760 | 2022-11-02 13:55:44 |
| vmi-20220924xex1.htm | 11655 | 2022-11-02 13:55:44 |
| vmi-20220924xex2.htm | 12253 | 2022-11-02 13:55:44 |
| vmi-20220924xex3.htm | 12904 | 2022-11-02 13:55:44 |
| vmi-20220924_cal.xml | 79102 | 2022-11-02 13:55:44 |
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| vmi-20220924_pre.xml | 334013 | 2022-11-02 13:55:44 |