| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 12, 2023 | Sep 27, 2022 | 000-55912 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Dec 31, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | Dec 2, 2020 | Dec 1, 2020 | 000-55912 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2020 | Sep 2, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 3, 2020 | Jul 30, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 6, 2020 | Jul 2, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2020 | Jun 2, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 7, 2020 | May 4, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2020 | Apr 6, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2020 | Feb 27, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2020 | Jan 10, 2020 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2019 | Nov 27, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 1, 2019 | Nov 1, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 1, 2019 | Sep 30, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2019 | Aug 30, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2019 | Aug 2, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2019 | May 30, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2019 | May 9, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2019 | Jan 31, 2019 | 000-55912 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2018 | Dec 4, 2018 | 000-55912 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2018 | Mar 8, 2018 | 000-55912 |