| 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 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2022 | Feb 22, 2022 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2022 | Feb 13, 2022 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 27, 2021 | Sep 26, 2021 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2021 | Feb 23, 2021 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2021 | Feb 22, 2021 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2021 | Feb 14, 2021 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2020 | Jul 28, 2020 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2020 | Mar 2, 2020 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2020 | Feb 18, 2020 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2019 | Mar 1, 2019 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2019 | Feb 19, 2019 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2018 | Feb 20, 2018 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2018 | Feb 13, 2018 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2017 | Feb 21, 2017 | 001-08036 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2017 | Feb 14, 2017 | 001-08036 |
| 4 | Open Document | Open Filing | Sep 28, 2016 | Sep 26, 2016 | 001-08036 | |
| 3 | Open Document | Open Filing | Sep 28, 2016 | Sep 26, 2016 | 001-08036 |