| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Sep 2021 | 01 Sep 2021 | 001-31892 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Jan 2018 | 18 Jan 2018 | 001-38352 |
| 3 | Open Document | Open Filing | 3 | 14 Jul 2017 | 12 Jul 2017 | 001-36788 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 09 Mar 2017 | 09 Mar 2017 | 001-38028 |