| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2022 | Oct 2, 2022 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 10, 2021 | Oct 2, 2020 | 001-13458 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2021 | Oct 2, 2020 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 6, 2020 | Oct 2, 2020 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2019 | Nov 14, 2019 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 6, 2018 | Jun 28, 2018 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2018 | Feb 26, 2018 | 001-13458 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 1, 2015 | Aug 31, 2015 | 001-13458 |