| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 14, 2023 | Nov 9, 2023 | 001-41503 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 2, 2022 | May 31, 2022 | 000-31157 |
| 4 | Open Document | Open Filing | 4 | Oct 7, 2020 | Aug 27, 2020 | 000-31157 |
| 3 | Open Document | Open Filing | FORM 3 - | Dec 19, 2014 | Dec 15, 2014 | 000-31157 |