| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2021 | Sep 1, 2021 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 27, 2020 | Nov 24, 2020 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2020 | Mar 19, 2020 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 29, 2019 | Nov 26, 2019 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 30, 2018 | Nov 28, 2018 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2018 | Nov 27, 2018 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 1, 2017 | Nov 29, 2017 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2016 | Nov 30, 2016 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 27, 2015 | Nov 24, 2015 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2014 | Nov 25, 2014 | 001-02256 |