| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2022 | Feb 25, 2022 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2022 | Feb 15, 2022 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Jan 1, 2022 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2021 | Jun 8, 2021 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2021 | Feb 26, 2021 | 001-08729 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2021 | Feb 12, 2021 | 001-08729 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Jan 1, 2021 | 001-08729 |