| 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 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2020 | Jun 1, 2020 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 11, 2019 | Sep 9, 2019 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2019 | Jun 3, 2019 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2019 | Apr 30, 2019 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2018 | Jun 1, 2018 | 001-35095 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 26, 2017 | Jun 19, 2017 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 20, 2017 | Jun 19, 2017 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 23, 2016 | Jun 21, 2016 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2015 | Sep 1, 2015 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2015 | Jun 4, 2015 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2015 | May 15, 2015 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2015 | Feb 19, 2015 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2014 | Nov 21, 2014 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2014 | May 16, 2014 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2014 | May 14, 2014 | 001-35095 |