Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000066570-22-000004-index-headers.html | 2022-02-17 20:35:22 | |
| 0000066570-22-000004-index.html | 2022-02-17 20:35:22 | |
| 0000066570-22-000004.txt | 2022-02-17 20:35:22 | |
 0000066570-22-000004-xbrl.zip | 39913 | 2022-02-17 20:35:22 |
| exhibit9914q2021earningspr.htm | 462713 | 2022-02-17 20:35:22 |
| FilingSummary.xml | 1752 | 2022-02-17 20:35:22 |
| Financial_Report.xlsx | 5679 | 2022-02-17 20:35:22 |
| MetaLinks.json | 17015 | 2022-02-17 20:35:22 |
| msa-20220217.htm | 37201 | 2022-02-17 20:35:22 |
| msa-20220217.xsd | 1946 | 2022-02-17 20:35:22 |
 msa-20220217_g1.jpg | 7880 | 2022-02-17 20:35:22 |
| msa-20220217_htm.xml | 11084 | 2022-02-17 20:35:22 |
| msa-20220217_lab.xml | 24229 | 2022-02-17 20:35:22 |
| msa-20220217_pre.xml | 12637 | 2022-02-17 20:35:22 |
 msa01.jpg | 7593 | 2022-02-17 20:35:22 |
| R1.htm | 38580 | 2022-02-17 20:35:22 |
| report.css | 2767 | 2022-02-17 20:35:22 |
| Show.js | 1085 | 2022-02-17 20:35:22 |