| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2021 | Dec 10, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2021 | Nov 15, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 15, 2021 | Nov 11, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2021 | Nov 9, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 17, 2021 | Sep 15, 2021 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2020 | Dec 11, 2020 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2020 | Nov 16, 2020 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2020 | Nov 16, 2020 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2020 | Nov 13, 2020 | 000-20322 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2020 | Nov 11, 2020 | 000-20322 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2020 | Nov 2, 2020 | 000-20322 |