| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2021 | Sep 5, 2021 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 1, 2021 | Aug 31, 2021 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2021 | Aug 1, 2021 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2020 | Dec 3, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2020 | Oct 30, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2020 | Sep 5, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2020 | Aug 31, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2020 | Aug 1, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2020 | Mar 11, 2020 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 31, 2019 | Oct 30, 2019 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2019 | Sep 5, 2019 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2019 | Aug 1, 2019 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 1, 2018 | Oct 30, 2018 | 001-37709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 7, 2018 | Sep 5, 2018 | 001-37709 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 9, 2017 | Oct 30, 2017 | 001-37709 |