| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 28, 2021 | Aug 27, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 22, 2021 | Sep 22, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 17, 2021 | Sep 16, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2021 | Sep 15, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 13, 2021 | Sep 10, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2021 | Sep 8, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 7, 2021 | Sep 3, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 2, 2021 | Sep 1, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2021 | Aug 31, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2021 | Aug 27, 2021 | 001-16525 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2021 | May 28, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2021 | Aug 20, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 20, 2021 | Aug 18, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 23, 2021 | Jun 23, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 22, 2021 | Jun 21, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 21, 2021 | Jun 17, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2021 | May 28, 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 29, 2018 | Nov 29, 2018 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 11, 2018 | Sep 7, 2018 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2018 | Apr 2, 2018 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 26, 2017 | Dec 21, 2017 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2017 | Dec 11, 2017 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 21, 2016 | Jul 19, 2016 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 13, 2015 | Jan 12, 2015 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 9, 2015 | Jan 7, 2015 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 24, 2014 | Dec 23, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 22, 2014 | Dec 18, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2014 | Dec 16, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 25, 2014 | Aug 21, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 21, 2014 | Apr 17, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 7, 2014 | Apr 3, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 26, 2014 | Mar 21, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2014 | Mar 19, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2014 | Mar 10, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2014 | Mar 5, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2014 | Mar 4, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2014 | Feb 24, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2014 | Feb 18, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2014 | Feb 11, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2014 | Feb 10, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2014 | Feb 7, 2014 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2014 | Feb 5, 2014 | 001-16525 |