| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2022 | Mar 14, 2022 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2022 | Dec 17, 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 29, 2021 | Nov 29, 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 10, 2021 | May 7, 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 8, 2021 | Jan 7, 2021 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2020 | Dec 18, 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 11, 2020 | Dec 11, 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2020 | Mar 6, 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 9, 2020 | Jan 9, 2020 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 19, 2019 | Dec 19, 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2019 | Aug 23, 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 9, 2019 | Jan 8, 2019 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 20, 2018 | Dec 18, 2018 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2018 | Jan 26, 2018 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 29, 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 21, 2017 | Aug 21, 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2017 | Feb 22, 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2017 | Jan 13, 2017 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 27, 2016 | Dec 22, 2016 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 21, 2015 | Dec 17, 2015 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 29, 2014 | Dec 24, 2014 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2014 | Dec 9, 2014 | 001-13820 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 4, 2014 | Sep 4, 2014 | 001-13820 |