| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 25, 2025 | Jun 24, 2025 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2025 | Jun 12, 2025 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 25, 2024 | Jun 18, 2024 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2023 | Jun 8, 2023 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2022 | Dec 5, 2022 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2022 | Jun 9, 2022 | 000-18183 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 30, 2021 | Aug 30, 2021 | 001-40764 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 14, 2021 | Jun 10, 2021 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2020 | Jun 11, 2020 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 18, 2019 | Jun 13, 2019 | 000-18183 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2019 | Jun 13, 2019 | 000-18183 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2019 | Jan 30, 2019 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 10, 2018 | Jul 7, 2018 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2018 | Mar 30, 2018 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2018 | Jan 30, 2018 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 11, 2017 | Jul 7, 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 28, 2017 | Jun 26, 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 19, 2017 | Apr 17, 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 31, 2017 | Mar 29, 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2017 | Jan 3, 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 28, 2016 | Sep 26, 2016 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2016 | Jun 27, 2016 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 18, 2016 | Apr 18, 2016 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2015 | Dec 28, 2015 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2015 | Dec 7, 2015 | 001-11893 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2015 | Aug 1, 2015 | 001-11893 |