| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 7, 2021 | Dec 3, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 3, 2021 | Dec 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2021 | Jun 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2021 | Mar 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2020 | Dec 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 23, 2020 | Nov 18, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2020 | Sep 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2020 | Jun 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2020 | Mar 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2019 | Dec 1, 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | 001-32590 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 8, 2019 | Jun 21, 2019 | 001-32590 |