| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 18, 2022 | Jan 14, 2022 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 19, 2021 | Jan 15, 2021 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2020 | Jan 3, 2020 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2019 | Jan 4, 2019 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 8, 2018 | Jan 5, 2018 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2017 | Jan 13, 2017 | 000-00255 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 12, 2016 | Jan 8, 2016 | 000-00255 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2015 | Feb 1, 2015 | 000-00255 |