| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 03 Feb 2022 | 01 Feb 2022 | 000-53574 | |
| 4 | Open Document | Open Filing | 23 Nov 2020 | 19 Nov 2020 | 000-53574 | |
| 4 | Open Document | Open Filing | 05 Apr 2019 | 15 Mar 2019 | 000-53574 | |
| 3 | Open Document | Open Filing | 29 Oct 2018 | 05 Apr 2017 | 000-53574 |