| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2022 | Feb 25, 2022 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2021 | Feb 26, 2021 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2020 | Mar 13, 2020 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2020 | Feb 27, 2020 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2020 | Feb 24, 2020 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2019 | Feb 28, 2019 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2019 | Feb 18, 2019 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 28, 2018 | Dec 28, 2018 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2018 | Mar 1, 2018 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2018 | Feb 19, 2018 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2017 | Feb 24, 2017 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2017 | Feb 20, 2017 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 30, 2016 | Jun 30, 2016 | 001-10945 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2016 | Feb 22, 2016 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2016 | Feb 22, 2016 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2016 | Feb 18, 2016 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2015 | Feb 24, 2015 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2015 | Feb 19, 2015 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2014 | Feb 25, 2014 | 001-10945 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 20, 2014 | 001-10945 |