| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 5 | Open Document | Open Filing | Feb 11, 2022 | Dec 31, 2021 | 001-36404 | |
| 4 | Open Document | Open Filing | Jan 10, 2022 | Jan 8, 2022 | 001-36404 | |
| 4 | Open Document | Open Filing | Aug 18, 2021 | Aug 16, 2021 | 001-36404 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 23, 2021 | Feb 19, 2021 | 001-36404 |
| 4 | Open Document | Open Filing | May 12, 2020 | May 8, 2020 | 001-36404 | |
| 4 | Open Document | Open Filing | May 14, 2019 | May 10, 2019 | 001-36404 | |
| 4 | Open Document | Open Filing | Jan 25, 2019 | Jan 25, 2019 | 001-36404 | |
| 3 | Open Document | Open Filing | Aug 14, 2018 | Aug 14, 2018 | 000-55924 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 18, 2018 | May 17, 2018 | 001-36404 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 22, 2016 | Jul 20, 2016 | 001-36404 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 29, 2016 | Feb 25, 2016 | 001-36404 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 7, 2015 | May 9, 2014 | 001-36404 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 8, 2014 | Apr 8, 2014 | 001-36404 |