| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2022 | Feb 28, 2022 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2022 | Jan 28, 2022 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2021 | Feb 26, 2021 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2021 | Jan 28, 2021 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2020 | Sep 15, 2020 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2020 | Feb 28, 2020 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2020 | Jan 30, 2020 | 001-16189 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 8, 2019 | Oct 1, 2019 | 001-16189 |