| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 9, 2022 | Jun 7, 2022 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | 001-34630 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2021 | Sep 1, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | 001-34630 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 11, 2021 | Aug 11, 2021 | 001-40737 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 20, 2021 | May 19, 2021 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 27, 2020 | May 22, 2020 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2019 | May 30, 2019 | 000-15386 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 30, 2019 | Apr 29, 2019 | 000-15386 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 17, 2019 | Apr 8, 2019 | 000-15386 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 27, 2018 | Aug 27, 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 4, 2018 | Jun 1, 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | May 29, 2018 | May 24, 2018 | 001-37787 |
| 4 | Open Document | Open Filing | FORM 4 - | Jan 3, 2018 | Jan 1, 2018 | 001-37787 |
| 3 | Open Document | Open Filing | FORM 3 - | Dec 4, 2017 | Dec 1, 2017 | 001-37787 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2016 | Oct 7, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 25, 2016 | Jul 21, 2016 | 001-34630 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 25, 2016 | Jul 21, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 27, 2016 | Jan 27, 2016 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 15, 2015 | Dec 14, 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 23, 2015 | Mar 19, 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 10, 2015 | Mar 6, 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2015 | Feb 19, 2015 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 14, 2014 | May 12, 2014 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2014 | May 2, 2014 | 001-33881 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Mar 14, 2014 | Mar 7, 2014 | 001-33881 |