| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2021 | May 17, 2021 | 001-39537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2021 | Feb 1, 2021 | 001-39537 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 23, 2020 | Nov 16, 2020 | 001-39537 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Nov 23, 2020 | Nov 16, 2020 | 001-39537 |