| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2022 | Feb 22, 2022 | 001-09172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2021 | Feb 22, 2021 | 001-09172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2020 | Feb 12, 2020 | 001-09172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2019 | Feb 13, 2019 | 001-09172 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2019 | Feb 13, 2019 | 001-09172 |