| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2023 | Mar 7, 2023 | 000-53505 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2020 | Dec 7, 2020 | 000-53505 | 
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2020 | Feb 4, 2020 | 000-53505 | 
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2018 | Aug 10, 2018 | 000-51074 |