| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2021 | Jun 15, 2021 | 001-37713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2020 | Jun 29, 2020 | 001-37713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2020 | May 30, 2020 | 001-37713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2019 | May 30, 2019 | 001-37713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2018 | May 30, 2018 | 001-37713 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2017 | Sep 19, 2017 | 001-37713 |