| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2022 | Jan 29, 2022 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 14, 2021 | Sep 10, 2021 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2021 | Apr 30, 2021 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2021 | Feb 5, 2021 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2021 | Jan 26, 2021 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2020 | Jan 28, 2020 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2019 | Jan 26, 2019 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 14, 2018 | Sep 12, 2018 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2018 | Jan 26, 2018 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2017 | May 24, 2017 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2017 | Jan 28, 2017 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2016 | Jan 29, 2016 | 001-07657 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2015 | Oct 31, 2015 | 001-07657 |