| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2022 | Mar 28, 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2022 | Mar 9, 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2022 | Mar 8, 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2022 | Mar 5, 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2022 | Mar 3, 2022 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 6, 2021 | Apr 6, 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2021 | Mar 22, 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2021 | Mar 9, 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2021 | Mar 5, 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2021 | Mar 3, 2021 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2020 | Jun 3, 2020 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2020 | Mar 5, 2020 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2020 | Mar 3, 2020 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2019 | Mar 18, 2019 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2019 | Mar 6, 2019 | 001-06395 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2019 | Mar 5, 2019 | 001-06395 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2018 | Mar 6, 2018 | 001-06395 |