| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2025 | Feb 28, 2025 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2024 | Feb 28, 2024 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2023 | Feb 28, 2023 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2022 | Feb 28, 2022 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Feb 26, 2021 | 001-11713 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 30, 2020 | Oct 30, 2020 | 811-23574 |
| 4/A | Open Document | Open Filing | FORM 4/A | Mar 4, 2020 | Feb 28, 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2020 | Mar 2, 2020 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2019 | Feb 28, 2019 | 001-11713 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2018 | Feb 27, 2018 | 001-11713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2018 | Jan 31, 2018 | 000-20957 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 1, 2018 | Jan 31, 2018 | 001-11713 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 1, 2018 | Jan 31, 2018 | 001-11713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 15, 2016 | Dec 14, 2016 | 000-20957 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | 000-20957 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 31, 2015 | Jul 29, 2015 | 000-20957 |
| 3 | Open Document | Open Filing | FORM 3 | Jul 31, 2015 | Jul 23, 2015 | 000-20957 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2015 | Jan 1, 2015 | 811-22632 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2015 | Jan 1, 2015 | 811-22724 |