| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 26, 2022 | Jul 25, 2022 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2022 | Mar 15, 2022 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2021 | Mar 15, 2021 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 23, 2020 | Sep 21, 2020 | 001-14315 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 23, 2020 | Sep 21, 2020 | 001-14315 |