| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2023 | Mar 7, 2023 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2022 | Mar 1, 2022 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2021 | Mar 2, 2021 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2021 | Jan 4, 2021 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2020 | Mar 3, 2020 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2019 | Nov 15, 2019 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 20, 2019 | Aug 20, 2019 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2019 | May 30, 2019 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2019 | Mar 5, 2019 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2019 | Aug 1, 2018 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2018 | Mar 6, 2018 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 2, 2017 | Feb 28, 2017 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2016 | Mar 1, 2016 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 11, 2015 | Aug 10, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 7, 2015 | Aug 6, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2015 | May 14, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2015 | May 11, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 8, 2015 | May 7, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2015 | Mar 11, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2015 | Mar 10, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2015 | Mar 9, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2015 | Mar 5, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2015 | Mar 5, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2015 | Mar 3, 2015 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2014 | Dec 3, 2014 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2014 | Dec 1, 2014 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 26, 2014 | Nov 26, 2014 | 001-13883 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2014 | Mar 4, 2014 | 001-13883 |