| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2023 | Aug 2, 2023 | 000-17204 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2023 | May 5, 2023 | 000-17204 |
| SC 13D/A | Open Document | Open Filing | May 20, 2022 | |||
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Jan 5, 2022 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2022 | Jan 5, 2021 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2022 | Dec 31, 2021 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 6, 2021 | Dec 31, 2020 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 8, 2021 | Jan 7, 2021 | 001-33899 |
| SC 13D | Open Document | Open Filing | Jan 8, 2021 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2020 | Jun 9, 2020 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 21, 2020 | Apr 17, 2020 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2020 | Dec 31, 2019 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2020 | Jan 3, 2020 | 001-33899 |
| 144/A | Open Document | Open Filing | May 24, 2019 | |||
| 144 | Open Document | Open Filing | May 21, 2019 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2019 | Jan 3, 2019 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2019 | Dec 31, 2018 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 6, 2018 | Jul 5, 2018 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 18, 2018 | Apr 16, 2018 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 2, 2018 | Dec 31, 2017 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 16, 2017 | Aug 15, 2017 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2017 | Dec 31, 2016 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2017 | Jan 23, 2017 | 001-33899 |
| SC 13D | Open Document | Open Filing | May 27, 2016 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2016 | May 12, 2016 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Jan 4, 2016 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2015 | Oct 30, 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2015 | Jun 9, 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2015 | May 29, 2015 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2015 | Feb 13, 2015 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2015 | Dec 31, 2014 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2014 | Dec 2, 2014 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 18, 2014 | Jun 13, 2014 | 001-33899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 21, 2014 | 001-33899 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2014 | Dec 31, 2013 | 001-33899 |