| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 16, 2025 | May 22, 2020 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2025 | Jun 2, 2025 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2024 | Jun 1, 2024 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2023 | Jun 1, 2023 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2022 | Jun 1, 2022 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2021 | Jun 1, 2021 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2020 | Jun 1, 2020 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2020 | Mar 20, 2020 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2019 | Jun 1, 2019 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2018 | Jun 1, 2018 | 001-11840 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2017 | Jun 1, 2017 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2017 | Jun 1, 2017 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2016 | Jun 1, 2016 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2015 | Jun 1, 2015 | 001-11840 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2014 | Jun 1, 2014 | 001-11840 |