| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 22, 2021 | Nov 19, 2021 | 001-14180 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2014 | Mar 13, 2014 | 001-34865 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2014 | Mar 11, 2014 | 001-34865 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2014 | Jan 16, 2014 | 001-34865 |