| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 2, 2022 | Mar 1, 2022 | 001-34761 | |
| 4 | Open Document | Open Filing | Aug 27, 2021 | Aug 25, 2021 | 001-34761 | |
| 4 | Open Document | Open Filing | Mar 1, 2021 | Feb 26, 2021 | 001-34761 | |
| 3 | Open Document | Open Filing | Dec 4, 2020 | Nov 30, 2020 | 001-34761 |