| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2023 | May 10, 2023 | 001-12709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 17, 2021 | Aug 16, 2021 | 001-12709 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2021 | Dec 31, 2020 | 001-12709 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2020 | Dec 31, 2019 | 001-12709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 5, 2018 | Nov 2, 2018 | 001-12709 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Dec 31, 2016 | 001-12709 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 26, 2016 | Dec 31, 2015 | 001-12709 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2015 | Dec 31, 2014 | 001-12709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2014 | Jul 30, 2014 | 001-12709 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2014 | Jan 31, 2014 | 001-12709 |