| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Jul 2021 | 26 Jul 2021 | 001-40659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Mar 2018 | 20 Mar 2018 | 001-36693 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2014 | 18 Nov 2014 | 001-36693 |