| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 23 Dec 2021 | 22 Dec 2021 | 001-39678 | |
| 4 | Open Document | Open Filing | 20 Dec 2021 | 31 Dec 2020 | 001-39678 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Oct 2020 | 30 Sep 2020 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2020 | 24 Feb 2020 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2020 | 10 Feb 2020 | 000-11808 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2020 | 21 Jan 2020 | 000-11808 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2018 | 08 Dec 2016 | 000-11808 |