| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 8-K | Open Document | Data | Open Filing | FORM 8-K | Dec 9, 2025 | Dec 8, 2025 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 14, 2025 | Sep 30, 2025 | 000-52610 |
| ARS | Open Document | Open Filing | FORM ARS | Oct 2, 2025 | Dec 31, 2024 | 000-52610 |
| DEF 14A | Open Document | Open Filing | FORM DEF 14A | Oct 1, 2025 | Dec 8, 2025 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 14, 2025 | Jun 30, 2025 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | Jul 24, 2025 | Jul 18, 2025 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 14, 2025 | Mar 31, 2025 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 31, 2025 | Dec 31, 2024 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 12, 2024 | Dec 9, 2024 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 14, 2024 | Sep 30, 2024 | 000-52610 |
| ARS | Open Document | Open Filing | ARS | Oct 10, 2024 | Dec 31, 2023 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 10, 2024 | Dec 9, 2024 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 14, 2024 | Jun 30, 2024 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 15, 2024 | Mar 31, 2024 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | 10-K | Apr 1, 2024 | Dec 31, 2023 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 15, 2023 | Dec 14, 2023 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 4, 2023 | Nov 29, 2023 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 14, 2023 | Sep 30, 2023 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 16, 2023 | Dec 14, 2023 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 14, 2023 | Jun 30, 2023 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 15, 2023 | Mar 31, 2023 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 30, 2023 | Dec 31, 2022 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Jan 11, 2023 | Dec 21, 2022 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 14, 2022 | Dec 8, 2022 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 12, 2022 | Dec 8, 2022 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 14, 2022 | Sep 30, 2022 | 000-52610 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Nov 9, 2022 | 000-52610 | |
| DEF 14A | Open Document | Open Filing | PRE 14A | Oct 18, 2022 | Dec 8, 2022 | 000-52610 |
| PRE 14A | Open Document | Open Filing | PRE 14A | Oct 7, 2022 | Oct 7, 2022 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 11, 2022 | Jun 30, 2022 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 13, 2022 | Mar 31, 2022 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 23, 2022 | Dec 31, 2021 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 20, 2021 | Dec 16, 2021 | 000-52610 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 17, 2021 | Dec 16, 2021 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 12, 2021 | Sep 30, 2021 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 19, 2021 | Dec 16, 2021 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Sep 21, 2021 | Sep 16, 2021 | 000-52610 |
| 3 | Open Document | Open Filing | 3 | Aug 19, 2021 | Aug 10, 2021 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 16, 2021 | Aug 10, 2021 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 11, 2021 | Jun 30, 2021 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 14, 2021 | Mar 31, 2021 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 19, 2021 | Dec 31, 2020 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 4, 2020 | Dec 3, 2020 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 3, 2020 | Dec 3, 2020 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 10, 2020 | Sep 30, 2020 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 9, 2020 | Dec 3, 2020 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 7, 2020 | Jun 30, 2020 | 000-52610 |
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jul 29, 2020 | 005-86416 | |
| CORRESP | Open Document | Open Filing | Jul 7, 2020 | |||
| CORRESP | Open Document | Open Filing | Jun 26, 2020 | |||
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jun 26, 2020 | 005-86416 | |
| UPLOAD | Open Document | Open Filing | Jun 22, 2020 | |||
| SC TO-I | Open Document | Open Filing | SC TO-I | Jun 15, 2020 | 005-86416 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 15, 2020 | Mar 31, 2020 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 30, 2020 | Dec 31, 2019 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Dec 12, 2019 | Dec 10, 2019 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Dec 12, 2019 | Dec 10, 2019 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 12, 2019 | Sep 30, 2019 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | Oct 17, 2019 | Dec 10, 2019 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 14, 2019 | Jun 30, 2019 | 000-52610 |
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jun 20, 2019 | 005-86416 | |
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jun 3, 2019 | 005-86416 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 15, 2019 | Mar 31, 2019 | 000-52610 |
| SC TO-I | Open Document | Open Filing | SCHEDULE TO | Apr 19, 2019 | 005-86416 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Apr 1, 2019 | Dec 31, 2018 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Feb 13, 2019 | Feb 12, 2019 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Feb 4, 2019 | Feb 1, 2019 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 17, 2018 | Dec 13, 2018 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 13, 2018 | Dec 13, 2018 | 000-52610 |
| UPLOAD | Open Document | Open Filing | Dec 6, 2018 | |||
| CORRESP | Open Document | Open Filing | Nov 30, 2018 | |||
| UPLOAD | Open Document | Open Filing | Nov 15, 2018 | |||
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 14, 2018 | Sep 30, 2018 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | Oct 23, 2018 | Dec 13, 2018 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Oct 17, 2018 | Oct 16, 2018 | 000-52610 |
| S-3D | Open Document | Open Filing | FORM S-3D | Oct 17, 2018 | 333-227864 | |
| S-3DPOS | Open Document | Open Filing | S-3DPOS | Oct 17, 2018 | 333-182634 | |
| 8-K | Open Document | Open Filing | FORM 8-K | Aug 29, 2018 | Aug 27, 2018 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 14, 2018 | Jun 30, 2018 | 000-52610 |
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jul 26, 2018 | 005-86416 | |
| SC TO-I/A | Open Document | Open Filing | SC TO-I/A | Jul 16, 2018 | 005-86416 | |
| 8-K | Open Document | Open Filing | 8-K | Jun 29, 2018 | Jun 29, 2018 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Jun 14, 2018 | Jun 14, 2018 | 000-52610 |
| SC TO-I | Open Document | Open Filing | SC TO-I | Jun 14, 2018 | 005-86416 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 15, 2018 | Mar 31, 2018 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | May 7, 2018 | May 7, 2018 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | 10-K | Mar 12, 2018 | Dec 31, 2017 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 13, 2017 | Dec 11, 2017 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 12, 2017 | Dec 11, 2017 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 14, 2017 | Sep 30, 2017 | 000-52610 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Nov 13, 2017 | 000-52610 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 25, 2017 | 000-52610 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 20, 2017 | Dec 11, 2017 | 000-52610 |
| PRE 14A | Open Document | Open Filing | PRE 14A | Oct 4, 2017 | Oct 4, 2017 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 14, 2017 | Jun 30, 2017 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 15, 2017 | Mar 31, 2017 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 20, 2017 | Dec 31, 2016 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Dec 2, 2016 | Dec 2, 2015 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 14, 2016 | Sep 30, 2016 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | Oct 17, 2016 | Dec 1, 2016 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Oct 6, 2016 | Oct 6, 2016 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Oct 6, 2016 | Oct 6, 2016 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 15, 2016 | Jun 30, 2016 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 16, 2016 | Mar 31, 2016 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Apr 27, 2016 | Apr 21, 2016 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 24, 2016 | Dec 31, 2015 | 000-52610 |
| UPLOAD | Open Document | Open Filing | Mar 7, 2016 | |||
| CORRESP | Open Document | Open Filing | Jan 15, 2016 | |||
| UPLOAD | Open Document | Open Filing | Dec 23, 2015 | |||
| 8-K | Open Document | Open Filing | 8-K | Dec 3, 2015 | Dec 3, 2015 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Nov 13, 2015 | Sep 30, 2015 | 000-52610 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Nov 3, 2015 | Dec 3, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | 8-K | Nov 3, 2015 | Oct 28, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Aug 20, 2015 | Aug 14, 2015 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | Aug 14, 2015 | Jun 30, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Jun 16, 2015 | Jun 10, 2015 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 14, 2015 | Mar 31, 2015 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 31, 2015 | Dec 31, 2014 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Mar 2, 2015 | Feb 26, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Feb 18, 2015 | Feb 11, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Feb 4, 2015 | Jan 19, 2015 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Jan 20, 2015 | Jan 14, 2015 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Nov 14, 2014 | Sep 30, 2014 | 000-52610 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 22, 2014 | Sep 22, 2014 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 22, 2014 | Sep 22, 2014 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 22, 2014 | Sep 22, 2014 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 22, 2014 | Sep 22, 2014 | |
| 8-K | Open Document | Open Filing | FORM 8-K | Sep 22, 2014 | Sep 22, 2014 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Aug 8, 2014 | Jun 30, 2014 | 000-52610 |
| DEF 14A | Open Document | Open Filing | SCHEDULE 14A | Aug 4, 2014 | Sep 22, 2014 | 000-52610 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | May 14, 2014 | Mar 31, 2014 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Apr 17, 2014 | Apr 17, 2014 | 000-52610 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | Mar 31, 2014 | Dec 31, 2013 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Feb 26, 2014 | Feb 26, 2014 | 000-52610 |
| 8-K | Open Document | Open Filing | CURRENT REPORT | Feb 14, 2014 | Feb 14, 2014 | 000-52610 |
| 8-K | Open Document | Open Filing | CURRENT REPORT | Feb 10, 2014 | Feb 10, 2014 | 000-52610 |
| 8-K | Open Document | Open Filing | FORM 8-K | Feb 5, 2014 | Jan 31, 2014 | 000-52610 |