| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2021 | Sep 15, 2021 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 16, 2021 | Aug 16, 2021 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 29, 2021 | Jul 28, 2021 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2020 | Jun 1, 2020 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 16, 2019 | Aug 16, 2019 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 26, 2019 | Jun 24, 2019 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2019 | Mar 27, 2019 | 001-36291 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2018 | Dec 11, 2018 | 001-36291 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2018 | Dec 6, 2018 | 001-36291 |