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