| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 22, 2023 | May 18, 2023 | 001-39701 | |
| 4 | Open Document | Open Filing | Jun 3, 2022 | Jun 1, 2022 | 001-39701 | |
| 4 | Open Document | Open Filing | Jan 18, 2022 | Jan 15, 2022 | 001-39701 | |
| 4 | Open Document | Open Filing | Jan 5, 2021 | Dec 31, 2020 | 001-39701 | |
| 4 | Open Document | Open Filing | Feb 7, 2020 | Feb 5, 2020 | 000-56094 | |
| 4 | Open Document | Open Filing | Jan 21, 2020 | Jan 17, 2020 | 000-56094 | |
| 3 | Open Document | Open Filing | Sep 26, 2019 | Sep 16, 2019 | 000-56094 | |
| 4 | Open Document | Open Filing | Nov 2, 2018 | Oct 31, 2018 | 333-147330 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 24, 2018 | Jan 22, 2018 | 333-147330 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 23, 2018 | Jan 22, 2018 | 333-147330 |