| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 5, 2021 | Aug 7, 2021 | 001-38018 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 21, 2018 | Dec 13, 2018 | 001-38018 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2017 | Aug 3, 2017 | 001-38018 |