| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2024 | Dec 31, 2023 | 001-10853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2023 | Feb 28, 2023 | 001-10853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2022 | Feb 22, 2022 | 001-10853 |
| 4 | Open Document | Open Filing | Feb 25, 2021 | Feb 23, 2021 | 001-10853 | |
| 4 | Open Document | Open Filing | Mar 11, 2020 | Mar 9, 2020 | 001-10853 | |
| 4 | Open Document | Open Filing | Feb 27, 2020 | Feb 25, 2020 | 001-10853 | |
| 4 | Open Document | Open Filing | Feb 28, 2019 | Feb 26, 2019 | 001-10853 | |
| 3 | Open Document | Open Filing | Nov 1, 2018 | Oct 22, 2018 | 001-10853 |