| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2021 | Dec 7, 2021 | 001-16317 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 25, 2021 | Jan 21, 2021 | 001-16317 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 7, 2020 | Jul 1, 2020 | 001-16317 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Mar 9, 2020 | Jul 24, 2019 | 001-35374 |