| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jan 2022 | 19 Jan 2022 | 000-19311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2021 | 18 Feb 2021 | 000-19311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2021 | 12 Feb 2021 | 000-19311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2021 | 27 Jan 2021 | 000-19311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Feb 2020 | 15 Feb 2020 | 000-19311 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Feb 2020 | 12 Feb 2020 | 000-19311 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2019 | 19 Sep 2019 | 000-19311 |