| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 22, 2021 | Jul 20, 2021 | 001-37416 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2020 | Dec 10, 2020 | 001-37416 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2020 | Dec 8, 2020 | 001-37416 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2020 | Dec 7, 2020 | 001-37416 |
| 3 | Open Document | Open Filing | GUNTHER_DEANF3 | Jul 10, 2020 | Jun 12, 2020 | 001-37416 |