| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2022 | Apr 22, 2022 | 001-33346 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2021 | Mar 24, 2021 | 001-33346 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2021 | Feb 2, 2021 | 001-33346 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2021 | Mar 24, 2021 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2021 | Mar 24, 2021 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2021 | Feb 5, 2021 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 20, 2019 | Nov 20, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2019 | Nov 18, 2019 | 001-33346 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2019 | Nov 12, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2019 | Nov 15, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2019 | Aug 12, 2019 | 001-33346 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 11, 2017 | Jan 10, 2017 | 001-33346 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 9, 2017 | Jan 9, 2017 | 001-33346 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 6, 2017 | Jan 5, 2017 | 001-33346 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D AMENDMENT | Sep 12, 2016 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 23, 2016 | Aug 23, 2016 | 001-33346 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 19, 2016 | Aug 18, 2016 | 001-33346 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 | Oct 26, 2015 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 26, 2015 | Sep 14, 2015 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Aug 15, 2014 | Aug 13, 2014 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | Jun 10, 2014 | Jun 6, 2014 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 29, 2014 | May 27, 2014 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 27, 2014 | May 22, 2014 | 001-33346 |
| 4 | Open Document | Open Filing | 4 | May 22, 2014 | May 20, 2014 | 001-33346 |