| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2022 | Feb 17, 2022 | 001-11993 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 19, 2021 | Aug 19, 2021 | 001-11993 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 19, 2021 | Aug 9, 2021 | 001-11993 |