| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2021 | May 15, 2021 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2021 | Apr 30, 2021 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 16, 2021 | Feb 12, 2021 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2021 | Jan 28, 2021 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2020 | Dec 4, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2020 | Dec 3, 2020 | 000-29823 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2020 | Nov 5, 2020 | 000-29823 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2020 | Oct 30, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2020 | Nov 5, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 5, 2020 | Oct 30, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2020 | Jun 5, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2020 | Apr 30, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2020 | Feb 21, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2020 | Feb 14, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2020 | Jan 31, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2020 | Jan 23, 2020 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2019 | Nov 4, 2019 | 000-29823 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 5, 2019 | Oct 31, 2019 | 000-29823 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 25, 2019 | Oct 21, 2019 | 000-29823 |