Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000105770-23-000018-index-headers.html | 2023-04-27 08:04:47 | |
| 0000105770-23-000018-index.html | 2023-04-27 08:04:47 | |
| 0000105770-23-000018.txt | 2023-04-27 08:04:47 | |
 0000105770-23-000018-xbrl.zip | 47333 | 2023-04-27 08:04:47 |
 exh991logoa.jpg | 166632 | 2023-04-27 08:04:47 |
| exh991q12023earningsrelease.htm | 174096 | 2023-04-27 08:04:47 |
| FilingSummary.xml | 1915 | 2023-04-27 08:04:47 |
| finalwestq12023.htm | 22269 | 2023-04-27 08:04:47 |
 finalwestq12023001.jpg | 137920 | 2023-04-27 08:04:47 |
 finalwestq12023002.jpg | 72941 | 2023-04-27 08:04:47 |
 finalwestq12023003.jpg | 97747 | 2023-04-27 08:04:47 |
 finalwestq12023004.jpg | 125989 | 2023-04-27 08:04:47 |
 finalwestq12023005.jpg | 153489 | 2023-04-27 08:04:47 |
 finalwestq12023006.jpg | 99617 | 2023-04-27 08:04:47 |
 finalwestq12023007.jpg | 96201 | 2023-04-27 08:04:47 |
 finalwestq12023008.jpg | 76948 | 2023-04-27 08:04:47 |
 finalwestq12023009.jpg | 46663 | 2023-04-27 08:04:47 |
 finalwestq12023010.jpg | 106167 | 2023-04-27 08:04:47 |
 finalwestq12023011.jpg | 84885 | 2023-04-27 08:04:47 |
 finalwestq12023012.jpg | 51120 | 2023-04-27 08:04:47 |
 finalwestq12023013.jpg | 76175 | 2023-04-27 08:04:47 |
 finalwestq12023014.jpg | 81714 | 2023-04-27 08:04:47 |
 finalwestq12023015.jpg | 79349 | 2023-04-27 08:04:47 |
 finalwestq12023016.jpg | 59102 | 2023-04-27 08:04:47 |
 finalwestq12023017.jpg | 83413 | 2023-04-27 08:04:47 |
 finalwestq12023018.jpg | 111690 | 2023-04-27 08:04:47 |
 finalwestq12023019.jpg | 84604 | 2023-04-27 08:04:47 |
 finalwestq12023020.jpg | 130906 | 2023-04-27 08:04:47 |
| Financial_Report.xlsx | 5719 | 2023-04-27 08:04:47 |
| MetaLinks.json | 18571 | 2023-04-27 08:04:47 |
| R1.htm | 38292 | 2023-04-27 08:04:47 |
| report.css | 2767 | 2023-04-27 08:04:47 |
| Show.js | 1085 | 2023-04-27 08:04:47 |
| wst-20230427.htm | 45774 | 2023-04-27 08:04:47 |
| wst-20230427.xsd | 2344 | 2023-04-27 08:04:47 |
 wst-20230427_g1.jpg | 17899 | 2023-04-27 08:04:47 |
| wst-20230427_htm.xml | 11337 | 2023-04-27 08:04:47 |
| wst-20230427_lab.xml | 24792 | 2023-04-27 08:04:47 |
| wst-20230427_pre.xml | 13278 | 2023-04-27 08:04:47 |