| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2025 | Sep 8, 2025 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2025 | Aug 23, 2025 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 15, 2024 | Nov 13, 2024 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2024 | Sep 8, 2024 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2024 | Aug 23, 2024 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 11, 2023 | Sep 8, 2023 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 29, 2023 | Aug 26, 2023 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 25, 2023 | Aug 23, 2023 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2023 | Aug 14, 2023 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2022 | Sep 8, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2022 | Aug 26, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2022 | Aug 24, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2022 | Aug 22, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 16, 2022 | Aug 12, 2022 | 001-13988 | 
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | May 11, 2022 | Mar 21, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2022 | Mar 21, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2022 | Feb 14, 2022 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 10, 2021 | Nov 10, 2021 | 001-13988 | 
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2021 | Sep 8, 2021 | 001-13988 | 
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2021 | Sep 8, 2021 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2021 | Sep 8, 2021 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2021 | Aug 26, 2021 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2021 | Aug 22, 2021 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 16, 2021 | Feb 13, 2021 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2020 | Aug 28, 2020 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 28, 2020 | Aug 26, 2020 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 25, 2020 | Aug 22, 2020 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2020 | Feb 13, 2020 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2019 | Aug 28, 2019 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2019 | Aug 22, 2019 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2019 | Feb 13, 2019 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2018 | Aug 21, 2018 | 001-13988 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2018 | Aug 22, 2018 | 001-13988 | 
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2018 | Feb 14, 2018 | 001-13988 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 31, 2018 | Jan 31, 2018 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2017 | Mar 9, 2017 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2017 | Mar 7, 2017 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 29, 2016 | Dec 27, 2016 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2016 | Mar 9, 2016 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 10, 2016 | Mar 8, 2016 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2016 | Mar 7, 2016 | 000-25837 | 
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Mar 12, 2015 | Mar 9, 2015 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2015 | Mar 9, 2015 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 12, 2014 | Mar 10, 2014 | 000-25837 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 11, 2014 | Mar 7, 2014 | 000-25837 |