| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2021 | Jun 1, 2021 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 6, 2021 | May 4, 2021 | 001-35914 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2021 | Feb 10, 2021 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2021 | Mar 4, 2021 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2021 | Feb 10, 2021 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2021 | Feb 7, 2021 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2020 | Dec 8, 2020 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2020 | Sep 11, 2020 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2020 | Feb 8, 2020 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2020 | Feb 5, 2020 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2019 | May 7, 2019 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2019 | Feb 8, 2019 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2019 | Feb 6, 2019 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2018 | Sep 6, 2018 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 8, 2018 | Aug 7, 2018 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2018 | Feb 9, 2018 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2018 | Feb 7, 2018 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 9, 2017 | Aug 8, 2017 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Feb 10, 2017 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2017 | Feb 8, 2017 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2016 | Aug 8, 2016 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 16, 2016 | Feb 5, 2016 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2015 | Feb 12, 2015 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2015 | Feb 10, 2015 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2015 | Jan 30, 2015 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2014 | May 23, 2014 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2014 | Feb 11, 2014 | 001-35914 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Jan 31, 2014 | 001-35914 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2014 | Dec 31, 2013 | 001-35914 |