| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2021 | May 6, 2021 | 001-34055 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2021 | Jan 29, 2021 | 001-06412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2020 | Jan 17, 2019 | 001-34055 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 22, 2020 | Aug 28, 2018 | 001-34055 |
| 4 | Open Document | Open Filing | Dec 3, 2019 | Nov 27, 2019 | 001-08266 | |
| 3 | Open Document | Open Filing | FORM 3 | Jan 2, 2019 | Jan 1, 2019 | 001-08266 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 23, 2018 | Jul 19, 2018 | 001-06412 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2015 | May 26, 2015 | 333-146442 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | 001-06412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2014 | Dec 19, 2014 | 001-06412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | 001-06412 |