| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jul 2, 2021 | Jun 30, 2021 | 001-10986 | |
| 4 | Open Document | Open Filing | Dec 3, 2020 | Dec 2, 2020 | 001-10986 | |
| 3 | Open Document | Open Filing | Nov 30, 2020 | Nov 20, 2020 | 001-10986 |