| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2024 | Mar 8, 2024 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2024 | Feb 26, 2024 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2023 | May 2, 2023 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2023 | Apr 28, 2023 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2022 | May 26, 2022 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2022 | Feb 22, 2022 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2021 | May 27, 2021 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2021 | Mar 2, 2021 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2020 | Jun 9, 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2020 | Apr 28, 2020 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2019 | May 22, 2019 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2019 | Mar 12, 2019 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2018 | May 1, 2018 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2017 | May 2, 2017 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 5, 2016 | May 3, 2016 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2015 | Apr 28, 2015 | 000-23877 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2014 | Feb 27, 2014 | 000-23877 |