| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2023 | 15 Feb 2023 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2022 | 22 Feb 2022 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Feb 2022 | 12 Feb 2022 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2021 | 14 Feb 2021 | 000-51372 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2020 | 28 Feb 2020 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2020 | 28 Feb 2020 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2020 | 16 Feb 2020 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2019 | 15 Feb 2019 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2018 | 20 Feb 2018 | 000-51372 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2018 | 12 Feb 2018 | 000-51372 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2018 | 09 Feb 2018 | 000-51372 |