| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 26, 2022 | Jul 25, 2022 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2021 | Jun 15, 2021 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2020 | Jun 15, 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2020 | Mar 18, 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2020 | Mar 16, 2020 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2019 | Jun 4, 2019 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2019 | May 31, 2019 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2019 | Mar 27, 2019 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2019 | Feb 14, 2019 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 21, 2018 | Dec 21, 2018 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2018 | Dec 17, 2018 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2017 | Dec 15, 2017 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 16, 2016 | Dec 15, 2016 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2015 | Dec 15, 2015 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 28, 2015 | Jul 27, 2015 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 9, 2015 | Jul 8, 2015 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2015 | Jun 16, 2015 | 001-14315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 16, 2014 | Dec 15, 2014 | 001-14315 |
| 4 | Open Document | Open Filing | 4 | Jan 31, 2014 | Jan 31, 2014 | 001-12631 |