Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000066570-21-000010-index-headers.html | 2021-02-18 18:23:33 | |
| 0000066570-21-000010-index.html | 2021-02-18 18:23:33 | |
| 0000066570-21-000010.txt | 2021-02-18 18:23:33 | |
 0000066570-21-000010-xbrl.zip | 39404 | 2021-02-18 18:23:33 |
| exhibit9914q2020earningspr.htm | 399516 | 2021-02-18 18:23:33 |
| FilingSummary.xml | 1817 | 2021-02-18 18:23:33 |
| Financial_Report.xlsx | 5459 | 2021-02-18 18:23:33 |
| MetaLinks.json | 17703 | 2021-02-18 18:23:33 |
| msa-20210218.htm | 38411 | 2021-02-18 18:23:33 |
| msa-20210218.xsd | 2459 | 2021-02-18 18:23:33 |
| msa-20210218_cal.xml | 747 | 2021-02-18 18:23:33 |
| msa-20210218_def.xml | 1692 | 2021-02-18 18:23:33 |
 msa-20210218_g1.jpg | 7880 | 2021-02-18 18:23:33 |
| msa-20210218_htm.xml | 12415 | 2021-02-18 18:23:33 |
| msa-20210218_lab.xml | 24275 | 2021-02-18 18:23:33 |
| msa-20210218_pre.xml | 12683 | 2021-02-18 18:23:33 |
 msa011.jpg | 7593 | 2021-02-18 18:23:33 |
| R1.htm | 38626 | 2021-02-18 18:23:33 |
| report.css | 2767 | 2021-02-18 18:23:33 |
| Show.js | 1085 | 2021-02-18 18:23:33 |