| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2021 | May 20, 2021 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2021 | May 19, 2021 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2021 | Jan 1, 2021 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2020 | Dec 3, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2020 | Dec 2, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2020 | Dec 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2020 | Oct 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jul 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jul 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2020 | Apr 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 2, 2020 | Jan 1, 2020 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 27, 2019 | Nov 26, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 11, 2019 | Oct 11, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2019 | Oct 4, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 3, 2019 | Oct 1, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 24, 2019 | Sep 20, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 6, 2019 | Aug 5, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2019 | Aug 2, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2019 | Aug 1, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 12, 2019 | Jul 11, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jul 1, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 25, 2019 | Jun 21, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2019 | Jun 20, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2019 | May 28, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2019 | May 23, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2019 | Apr 1, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Jan 1, 2019 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2018 | Nov 20, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Oct 1, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2018 | Jul 1, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2018 | Jun 1, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2018 | May 31, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2018 | Apr 1, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 20, 2018 | Mar 7, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2018 | Jul 1, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 2, 2018 | Jan 1, 2018 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2017 | Dec 7, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2017 | Dec 4, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2017 | Oct 11, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2017 | Oct 1, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 14, 2017 | Jul 13, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jul 1, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Apr 1, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2017 | Jan 1, 2017 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Oct 1, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 20, 2016 | Sep 20, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 13, 2016 | Sep 13, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2016 | Sep 8, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2016 | Aug 31, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 29, 2016 | Aug 29, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2016 | Aug 25, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 12, 2016 | Jul 11, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jul 1, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2016 | Jun 30, 2016 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2016 | Jun 30, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2016 | Jun 28, 2016 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2016 | Apr 1, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2016 | Mar 31, 2016 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2016 | Mar 15, 2016 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2016 | Jan 1, 2016 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2016 | Dec 31, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Oct 1, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 1, 2015 | Sep 30, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2015 | Sep 2, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2015 | Aug 11, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2015 | Jul 1, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 1, 2015 | Jun 30, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2015 | May 26, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Apr 1, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2015 | Mar 31, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 18, 2015 | Mar 17, 2015 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2015 | Mar 10, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Jan 1, 2015 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2015 | Dec 31, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2014 | Jul 8, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Oct 1, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2014 | Sep 30, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 14, 2014 | Aug 13, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jul 1, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 1, 2014 | Jun 30, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2014 | Apr 1, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 1, 2014 | Mar 31, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 31, 2014 | Mar 28, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 21, 2014 | Mar 18, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2014 | Mar 5, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2014 | Feb 6, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2014 | Jan 31, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 22, 2014 | Jan 21, 2014 | 000-20969 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Jan 1, 2014 | 000-25464 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2014 | Dec 31, 2013 | 000-20969 |