| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 5, 2023 | Apr 3, 2023 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2022 | Apr 1, 2022 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2019 | Nov 27, 2019 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2019 | Oct 1, 2019 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | May 30, 2017 | May 26, 2017 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2017 | May 19, 2017 | 001-33807 |
| 4 | Open Document | Open Filing | FORM 4 | May 18, 2017 | May 16, 2017 | 001-33807 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2016 | Apr 1, 2016 | 001-33807 |