| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2022 | Feb 23, 2022 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2022 | Feb 18, 2022 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 18, 2022 | Aug 11, 2021 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2021 | Feb 19, 2021 | 001-06682 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2021 | Feb 18, 2021 | 001-06682 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2020 | Feb 26, 2020 | 001-06682 |