| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 23, 2021 | Jun 21, 2021 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2021 | Jan 4, 2021 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Jan 2, 2020 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2019 | Jan 2, 2019 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2018 | Jan 2, 2018 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2017 | Mar 31, 2017 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2017 | Mar 10, 2017 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 24, 2017 | Jan 20, 2017 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2017 | Jan 3, 2017 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Dec 30, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 1, 2016 | Nov 30, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 14, 2016 | Nov 10, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 1, 2016 | Oct 31, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2016 | Aug 31, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 2, 2016 | Jul 29, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2016 | Jun 30, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2016 | May 31, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2016 | Apr 29, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2016 | Mar 31, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2016 | Mar 18, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2016 | Mar 4, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2016 | Feb 29, 2016 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2016 | Jan 4, 2016 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2015 | Nov 30, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2015 | Oct 30, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Sep 30, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2015 | Aug 31, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2015 | Jul 31, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2015 | Jun 30, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2015 | May 29, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2015 | May 27, 2015 | 001-02256 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2015 | May 27, 2015 | 001-02256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2015 | Apr 30, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2015 | Mar 11, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2015 | Mar 2, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2015 | Feb 27, 2015 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2014 | Nov 28, 2014 | 001-06351 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2014 | Nov 28, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 25, 2014 | Nov 24, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2014 | Oct 31, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2014 | Oct 24, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Sep 30, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2014 | Aug 29, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2014 | Jul 31, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2014 | May 30, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2014 | Apr 30, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2014 | Mar 31, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2014 | Mar 3, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Feb 28, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Jan 31, 2014 | 001-00768 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | 001-00768 |