| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 8, 2025 | Dec 31, 2024 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 18, 2024 | Dec 31, 2023 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 10, 2023 | Dec 31, 2022 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2022 | Dec 31, 2021 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 22, 2021 | Dec 31, 2020 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2020 | Dec 31, 2019 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2019 | Dec 31, 2018 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2018 | Dec 31, 2017 | 000-18516 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2017 | Jun 28, 2017 | 000-18516 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2017 | Jun 28, 2017 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2017 | Dec 31, 2016 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 20, 2016 | Dec 31, 2015 | 000-18516 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 17, 2015 | Sep 16, 2015 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2015 | Dec 31, 2014 | 000-18516 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 10, 2014 | Nov 10, 2014 | 000-18516 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 24, 2014 | Dec 31, 2013 | 000-18516 |