| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 25, 2024 | Jul 19, 2024 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2024 | Feb 23, 2024 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2024 | Feb 20, 2024 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2023 | Feb 24, 2023 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2023 | Feb 21, 2023 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2022 | Feb 18, 2022 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2022 | Jan 21, 2022 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 30, 2021 | Mar 26, 2021 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2021 | Feb 19, 2021 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2020 | Feb 21, 2020 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 14, 2019 | May 10, 2019 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2019 | Mar 1, 2019 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2019 | Feb 22, 2019 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2018 | Mar 1, 2018 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2018 | Feb 23, 2018 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2017 | Feb 24, 2017 | 001-06887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2017 | Jan 31, 2017 | 001-06887 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2017 | Jun 24, 2016 | 001-06887 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jun 24, 2016 | 001-06887 |