| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 12, 2021 | May 10, 2021 | 001-33383 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2020 | Aug 21, 2020 | 001-33383 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 31, 2020 | Mar 27, 2020 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2017 | Mar 1, 2017 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2016 | Mar 8, 2016 | 001-33383 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2015 | Feb 11, 2015 | 001-33383 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2015 | Feb 11, 2015 | 001-33383 |