| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Apr 1, 2025 | Mar 31, 2025 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2024 | May 16, 2024 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2023 | May 18, 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2023 | Feb 22, 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2022 | Dec 1, 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2022 | May 18, 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2022 | May 16, 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2022 | Jan 19, 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2021 | May 20, 2021 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2020 | May 15, 2020 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2020 | Feb 6, 2020 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2019 | May 15, 2019 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2019 | May 2, 2019 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2018 | May 16, 2018 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2018 | Feb 9, 2018 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 17, 2017 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2016 | May 19, 2016 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2015 | Jun 4, 2015 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2015 | May 15, 2015 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2015 | May 7, 2015 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2014 | May 15, 2014 | 000-26946 |