| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jan 6, 2023 | Dec 31, 2022 | 000-56264 | |
| 4 | Open Document | Open Filing | Jul 8, 2020 | Jul 7, 2020 | 333-170132 | |
| 4/A | Open Document | Open Filing | Jun 7, 2019 | Jun 6, 2019 | 333-170132 | |
| 4 | Open Document | Open Filing | Jun 7, 2019 | Jun 6, 2019 | 333-170132 | |
| 4 | Open Document | Open Filing | Apr 23, 2019 | Apr 22, 2019 | 333-170132 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 22, 2017 | Dec 21, 2017 | 333-170132 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 28, 2017 | Sep 26, 2017 | 333-170132 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Dec 31, 2016 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2017 | Jan 27, 2017 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2016 | Dec 2, 2016 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2016 | Jan 25, 2016 | 001-35095 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 14, 2015 | Aug 12, 2015 | 001-35095 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 14, 2015 | Aug 12, 2015 | 001-35095 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2015 | Dec 31, 2014 | 001-35095 |