| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 6, 2022 | May 4, 2022 | 001-04858 | |
| 4 | Open Document | Open Filing | May 7, 2021 | May 5, 2021 | 001-04858 | |
| 4 | Open Document | Open Filing | Mar 3, 2021 | Mar 1, 2021 | 001-04858 | |
| 3 | Open Document | Open Filing | Feb 10, 2021 | Feb 1, 2021 | 001-04858 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2020 | Feb 19, 2020 | 001-38196 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2020 | Feb 14, 2020 | 001-38196 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | 001-38196 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 19, 2019 | Dec 17, 2019 | 001-38196 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 7, 2019 | Aug 5, 2019 | 001-38196 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 31, 2019 | Jul 29, 2019 | 001-38196 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 10, 2019 | Jun 1, 2019 | 001-38196 |