| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2023 | Mar 20, 2023 | 001-12647 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2023 | Feb 27, 2023 | 001-12647 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 6, 2022 | Apr 4, 2022 | 001-12647 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2022 | Mar 8, 2022 | 001-12647 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2021 | Apr 4, 2021 | 001-12647 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 7, 2020 | Jul 29, 2020 | 001-12647 |