| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2024 | May 13, 2024 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2023 | May 15, 2023 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 11, 2022 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 10, 2021 | May 7, 2021 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2021 | Mar 31, 2021 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2021 | Feb 1, 2021 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2021 | Dec 31, 2020 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2020 | Sep 30, 2020 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2020 | Jun 30, 2020 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 20, 2020 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2020 | May 11, 2020 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2020 | Mar 31, 2020 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2020 | Feb 13, 2020 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 4, 2020 | Feb 1, 2020 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2020 | Dec 31, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2019 | Sep 30, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 1, 2019 | Jul 31, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2019 | Jun 30, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2019 | May 22, 2019 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2019 | Mar 31, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2019 | Feb 1, 2019 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2019 | Dec 31, 2018 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2018 | Dec 4, 2018 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2018 | Dec 4, 2018 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2018 | Sep 30, 2018 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2018 | Jun 30, 2018 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2018 | May 14, 2018 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 3, 2018 | Mar 31, 2018 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2018 | Feb 1, 2018 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2018 | Dec 31, 2017 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 2, 2018 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Jan 2, 2018 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2017 | Sep 30, 2017 | 001-01136 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2017 | Jun 30, 2017 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2017 | May 12, 2017 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2017 | Mar 31, 2017 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2017 | Mar 1, 2017 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2017 | Mar 1, 2017 | 001-15943 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2017 | Feb 21, 2017 | 001-01136 |
| 3 | Open Document | Open Filing | FORM 3 | Feb 23, 2017 | Feb 21, 2017 | 001-01136 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2016 | May 12, 2016 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 7, 2015 | May 6, 2015 | 001-15943 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2014 | May 7, 2014 | 001-15943 |