| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 3, 2021 | Sep 1, 2021 | 001-35368 | |
| 3 | Open Document | Open Filing | Aug 27, 2021 | Aug 24, 2021 | 001-35368 | |
| 4 | Open Document | Open Filing | Jun 9, 2020 | Jun 5, 2020 | 001-16153 | |
| 4 | Open Document | Open Filing | Aug 21, 2019 | Aug 19, 2019 | 001-16153 | |
| 4 | Open Document | Open Filing | Aug 20, 2019 | Aug 16, 2019 | 001-16153 | |
| 4 | Open Document | Open Filing | Jun 6, 2019 | Jun 5, 2019 | 001-16153 | |
| 4 | Open Document | Open Filing | Aug 20, 2018 | Aug 16, 2018 | 001-16153 | |
| 4 | Open Document | Open Filing | Jun 7, 2018 | Jun 5, 2018 | 001-16153 | |
| 4 | Open Document | Open Filing | Aug 18, 2017 | Aug 17, 2017 | 001-16153 | |
| 4 | Open Document | Open Filing | Jun 6, 2017 | Jun 5, 2017 | 001-16153 | |
| 3 | Open Document | Open Filing | Jun 6, 2017 | Jun 5, 2017 | 001-16153 |