| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2021 | Aug 31, 2021 | 001-36109 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2021 | Mar 5, 2021 | 001-36109 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2020 | Dec 17, 2020 | 001-36109 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 27, 2017 | Dec 27, 2017 | 001-35957 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 30, 2017 | Jun 30, 2017 | 001-35957 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 9, 2016 | Jun 8, 2016 | 001-35957 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 9, 2016 | Jun 8, 2016 | 001-35957 |