| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2021 | Dec 9, 2021 | 001-37863 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2020 | Dec 10, 2020 | 001-37863 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2020 | Sep 3, 2020 | 001-37863 |