| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 14, 2023 | Feb 28, 2022 | 000-22427 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2023 | Mar 25, 2023 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2022 | Mar 7, 2022 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2022 | Feb 28, 2022 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2021 | Mar 7, 2021 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 20, 2020 | Apr 16, 2020 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2020 | Mar 7, 2020 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 13, 2018 | Aug 9, 2018 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 11, 2018 | May 18, 2018 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2018 | Mar 17, 2018 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2018 | Mar 7, 2018 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2017 | Mar 2, 2017 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2017 | Feb 23, 2017 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2016 | Dec 29, 2016 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2016 | Mar 2, 2016 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 31, 2015 | Dec 29, 2015 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2015 | May 21, 2015 | 000-22427 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | 000-22427 |