| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | May 23, 2022 | May 19, 2022 | 001-37976 | |
| 4 | Open Document | Open Filing | Mar 24, 2016 | Mar 23, 2016 | 001-31403 | |
| 4 | Open Document | Open Filing | May 19, 2015 | May 15, 2015 | 001-31403 | |
| 4 | Open Document | Open Filing | May 20, 2014 | May 16, 2014 | 001-31403 |