| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 7, 2021 | Dec 3, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 3, 2021 | Dec 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2021 | Jun 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2021 | Mar 1, 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2020 | Dec 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 5, 2020 | Nov 3, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2020 | Sep 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2020 | Jun 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2020 | Mar 1, 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 3, 2019 | Dec 1, 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2019 | Jun 1, 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2019 | Mar 1, 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2018 | Dec 1, 2018 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2018 | Sep 1, 2018 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2018 | Jun 1, 2018 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2018 | Mar 1, 2018 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2017 | Dec 1, 2017 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2017 | Jun 1, 2017 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2017 | Mar 1, 2017 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2016 | Dec 1, 2016 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2016 | Jun 1, 2016 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 3, 2016 | Mar 1, 2016 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 3, 2015 | Dec 1, 2015 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 3, 2015 | Sep 1, 2015 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 3, 2015 | Jun 1, 2015 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2015 | Mar 2, 2015 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2014 | Dec 1, 2014 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 4, 2014 | Sep 2, 2014 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 4, 2014 | Jun 2, 2014 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2014 | Mar 3, 2014 | 001-32590 |