| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 9, 2021 | Nov 9, 2021 | 001-37841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 12, 2021 | Jan 8, 2021 | 001-37841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2020 | Jan 27, 2020 | 001-37841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2019 | Feb 8, 2019 | 001-37841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2018 | Jul 27, 2018 | 001-37841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 30, 2017 | Jun 29, 2017 | 001-37841 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 26, 2017 | Jan 17, 2017 | 001-37841 |