| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 14, 2022 | Mar 7, 2022 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2021 | May 19, 2021 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2021 | Mar 3, 2021 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2020 | Oct 29, 2020 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 20, 2020 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2019 | May 15, 2019 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2019 | Apr 30, 2019 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2019 | Feb 28, 2019 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2018 | May 16, 2018 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 5, 2018 | Feb 28, 2018 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2018 | Feb 21, 2018 | 001-13122 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2018 | Dec 31, 2017 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2017 | May 17, 2017 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 23, 2017 | Feb 21, 2017 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2016 | Nov 30, 2016 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2016 | Jun 8, 2016 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2016 | May 18, 2016 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 8, 2015 | Dec 4, 2015 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2015 | May 20, 2015 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 26, 2014 | Jun 24, 2014 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2014 | May 21, 2014 | 001-13122 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 2, 2014 | Dec 31, 2013 | 001-32986 |