| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2022 | 19 Dec 2022 | 001-16465 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2021 | 16 Mar 2021 | 001-16465 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 May 2020 | 26 May 2020 | 001-16465 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Dec 2016 | 27 Dec 2016 | 001-16465 |