| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2021 | May 25, 2021 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2021 | Feb 24, 2021 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2020 | Dec 11, 2020 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2020 | May 20, 2020 | 001-34582 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 16, 2020 | Jan 15, 2020 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2019 | May 22, 2019 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2019 | Jan 24, 2019 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2018 | May 14, 2018 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 17, 2017 | 001-34582 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 18, 2017 | Dec 31, 2016 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2016 | Nov 15, 2016 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2016 | May 27, 2016 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2016 | May 18, 2016 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2015 | Dec 4, 2015 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 18, 2015 | Aug 14, 2015 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2015 | May 20, 2015 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2014 | May 21, 2014 | 001-34582 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2014 | Apr 24, 2014 | 001-34582 |