| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2021 | May 13, 2021 | 001-38873 |
| 4 | Open Document | Open Filing | 4 | Jan 29, 2021 | Jan 27, 2021 | 001-38873 |
| 4 | Open Document | Open Filing | 4 | Sep 10, 2020 | Sep 8, 2020 | 001-38873 |
| 4 | Open Document | Open Filing | 4 | Sep 3, 2020 | Sep 1, 2020 | 001-38873 |
| 3 | Open Document | Open Filing | 3 | Sep 3, 2020 | Sep 1, 2020 | 001-38873 |