| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 28 Feb 2022 | 28 Feb 2022 | 000-56264 | |
| 4 | Open Document | Open Filing | 23 Apr 2019 | 11 Apr 2019 | 333-170132 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2018 | 31 Dec 2017 | 333-170132 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2013 | 14 Jan 2013 | 333-170132 |