| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 22, 2022 | Aug 19, 2022 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 13, 2022 | Apr 12, 2022 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2021 | May 25, 2021 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 12, 2021 | Apr 8, 2021 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2020 | May 22, 2020 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 13, 2020 | Apr 9, 2020 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2019 | May 24, 2019 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 9, 2019 | Apr 8, 2019 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 9, 2018 | Apr 5, 2018 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 2, 2018 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2017 | Dec 1, 2017 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 10, 2017 | Apr 6, 2017 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 30, 2016 | Mar 29, 2016 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2015 | Apr 2, 2015 | 000-19807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2014 | Apr 2, 2014 | 000-19807 |