| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | 10 Dec 2021 | 09 Dec 2021 | 001-40046 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2021 | 08 Dec 2021 | 811-23247 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2020 | 16 Mar 2020 | 811-23247 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2018 | 20 Mar 2018 | 811-23247 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2018 | 07 Feb 2018 | 811-23247 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2018 | 29 Dec 2017 | 811-23247 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Sep 2017 | 27 Sep 2017 | 811-23247 |