| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 7, 2021 | Jul 2, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2021 | Jun 16, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 27, 2021 | May 25, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 7, 2021 | Apr 2, 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 28, 2020 | Dec 24, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 29, 2020 | Sep 25, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 19, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 31, 2020 | Mar 27, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2020 | Feb 28, 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2019 | Dec 27, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 1, 2019 | Sep 27, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2019 | Jun 28, 2019 | 001-05256 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 28, 2019 | May 24, 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2019 | May 24, 2019 | 001-05256 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2019 | Mar 12, 2019 | 001-05256 |