| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jun 25, 2021 | Mar 17, 2021 | 001-38875 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 19, 2021 | Mar 17, 2021 | 001-38875 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2020 | Aug 25, 2020 | 001-38875 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2020 | Aug 25, 2020 | 001-38875 |