| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 10, 2021 | Sep 8, 2021 | 001-32146 | |
| 4 | Open Document | Open Filing | Jun 23, 2021 | Jun 21, 2021 | 001-32146 | |
| 4 | Open Document | Open Filing | May 27, 2021 | May 26, 2021 | 001-32146 | |
| 4 | Open Document | Open Filing | Oct 23, 2020 | Oct 16, 2020 | 001-32146 | |
| 3 | Open Document | Open Filing | Aug 31, 2020 | Aug 21, 2020 | 001-32146 |