| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2022 | Feb 27, 2022 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2022 | Feb 16, 2022 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2021 | Nov 18, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2021 | May 13, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2021 | May 11, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2021 | May 7, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2021 | Feb 21, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2021 | Feb 18, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2021 | Feb 17, 2021 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 16, 2020 | Nov 12, 2020 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2020 | Mar 12, 2020 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2020 | Feb 22, 2020 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2020 | Feb 19, 2020 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2019 | Mar 14, 2019 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2019 | Feb 27, 2019 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2019 | Feb 24, 2019 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2018 | Dec 6, 2018 | 001-06028 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2018 | Nov 9, 2018 | 001-06028 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2018 | Jul 19, 2018 | 001-06028 |