| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2022 | Dec 28, 2022 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 28, 2022 | Dec 27, 2022 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2022 | Dec 21, 2022 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2021 | Dec 15, 2021 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2021 | Dec 30, 2020 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2020 | Dec 21, 2020 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2020 | Dec 16, 2020 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2020 | Sep 15, 2020 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2020 | Sep 8, 2020 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 20, 2019 | Dec 18, 2019 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2019 | Feb 26, 2019 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2018 | Dec 6, 2018 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2018 | Jun 28, 2018 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2017 | Dec 7, 2017 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2017 | Jun 13, 2017 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2016 | Dec 8, 2016 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2016 | Mar 23, 2016 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2015 | Dec 3, 2015 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2015 | Mar 23, 2015 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 20, 2015 | Mar 18, 2015 | 001-08649 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2014 | Dec 4, 2014 | 001-08649 |